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87-963: (Redirected from Tbilisi Sea ) Reservoir in Tbilisi, Georgia Tbilisi lake [REDACTED] Tbilisi Sea in september 2023 [REDACTED] [REDACTED] Tbilisi lake Location Kura River valley Coordinates 41°44′58″N 44°50′44″E  /  41.74944°N 44.84556°E  / 41.74944; 44.84556 Primary outflows Iori River Basin  countries Georgia Max. length 8.75 km (5.44 mi) Max. width 2.85 km (1.77 mi) Surface area 11.6 km (4.5 sq mi) Average depth 26.6 m (87 ft) Max. depth 45 m (148 ft) Surface elevation 650–800 m (2,130–2,620 ft) The Tbilisi Sea ( Georgian : თბილისის ზღვა ) or Tbilisi reservoir (თბილისის წყალსაცავი)

174-810: A lord of the manor with a Roman Catholic church and priest. Thanks to the exchange with the Al-Andalus where the Arab Agricultural Revolution was underway, European agriculture transformed, with improved techniques and the diffusion of crop plants, including the introduction of sugar, rice, cotton and fruit trees (such as the orange). After 1492, the Columbian exchange brought New World crops such as maize, potatoes, tomatoes, sweet potatoes , and manioc to Europe, and Old World crops such as wheat, barley, rice, and turnips , and livestock (including horses, cattle, sheep and goats) to

261-509: A cliff on the bank of the Kura covering an area of 8 hectares (20 acres), contains underground living quarters, communal chambers, places of worship, storerooms, connected by a network of passageways. It reached its peak about 1,100 years ago as the political, religious and cultural center of the region, but in the 13th century, it fell to Mongolian invaders. Even though irrigation agriculture had been well established for thousands of years, until

348-470: A combination of labor supply and labor demand trends have driven down the share of population employed in agriculture. During the 16th century in Europe, between 55 and 75% of the population was engaged in agriculture; by the 19th century, this had dropped to between 35 and 65%. In the same countries today, the figure is less than 10%. At the start of the 21st century, some one billion people, or over 1/3 of

435-664: A hazardous industry, and farmers worldwide remain at high risk of work-related injuries, lung disease, noise-induced hearing loss , skin diseases, as well as certain cancers related to chemical use and prolonged sun exposure. On industrialized farms , injuries frequently involve the use of agricultural machinery , and a common cause of fatal agricultural injuries in developed countries is tractor rollovers . Pesticides and other chemicals used in farming can be hazardous to worker health , and workers exposed to pesticides may experience illness or have children with birth defects. As an industry in which families commonly share in work and live on

522-444: A high use of inputs (water, fertilizer, pesticide and automation). It is practiced mainly in developed countries. From the twentieth century onwards, intensive agriculture increased crop productivity. It substituted synthetic fertilizers and pesticides for labor, but caused increased water pollution, and often involved farm subsidies. Soil degradation and diseases such as stem rust are major concerns globally; approximately 40% of

609-447: A positive note, the gender gap in access to mobile internet in low- and middle-income countries fell from 25 percent to 16 percent between 2017 and 2021, and the gender gap in access to bank accounts narrowed from 9 to 6 percentage points. Women are as likely as men to adopt new technologies when the necessary enabling factors are put in place and they have equal access to complementary resources. Agriculture, specifically farming, remains

696-404: A significant decrease in genetic diversity and resources among livestock breeds, leading to a corresponding decrease in disease resistance and local adaptations previously found among traditional breeds. Grassland based livestock production relies upon plant material such as shrubland , rangeland , and pastures for feeding ruminant animals. Outside nutrient inputs may be used, however manure

783-492: A small area of forest is cleared by cutting and burning the trees. The cleared land is used for growing crops for a few years until the soil becomes too infertile, and the area is abandoned. Another patch of land is selected and the process is repeated. This type of farming is practiced mainly in areas with abundant rainfall where the forest regenerates quickly. This practice is used in Northeast India, Southeast Asia, and

870-552: A year, or requiring irrigation. In all of these environments perennial crops are grown (coffee, chocolate) and systems are practiced such as agroforestry . In temperate environments, where ecosystems were predominantly grassland or prairie , highly productive annual farming is the dominant agricultural system. Important categories of food crops include cereals, legumes, forage, fruits and vegetables. Natural fibers include cotton, wool , hemp , silk and flax . Specific crops are cultivated in distinct growing regions throughout

957-473: A yearly summit to discuss safety. Overall production varies by country as listed. The twenty largest countries by agricultural output (in nominal terms) at peak level as of 2018, according to the IMF and CIA World Factbook . Cropping systems vary among farms depending on the available resources and constraints; geography and climate of the farm; government policy; economic, social and political pressures; and

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1044-466: Is Mt'k'vari (in old Georgian Mt'k'uari ), either from Georgian "good water" or a Georgianized form of Megrelian tkvar-ua "gnaw" (as in, "river that eats its way through the mountains"). The name Kura was adopted first by the Russians and later by European cartographers. In some definitions of Europe, the Kura defines the borderline between Europe and Asia . In the various regional languages,

1131-584: Is a hybrid of a Chilean and a North American species, developed by breeding in Europe and North America. The indigenous people of the Southwest and the Pacific Northwest practiced forest gardening and fire-stick farming . The natives controlled fire on a regional scale to create a low-intensity fire ecology that sustained a low-density agriculture in loose rotation; a sort of "wild" permaculture . A system of companion planting called

1218-467: Is also longer. However, because of the more arid conditions and equally intensive water use, the discharge of the Aras is much less than the Kura, so downstream of the confluence the river is still called the Kura. About 52% of the river's flow comes from snowmelt and glaciers, 30% comes from groundwater seepage, and roughly 18% from precipitation. Because of high water use, many of the smaller tributaries of

1305-555: Is an artificial lake in the vicinity of Tbilisi that serves as a reservoir. The lake has a length of 8.75 km and a width of 2.85 km. The surface area of this reservoir is 11.6 km (4.5 sq mi). It was opened in 1953 and has become a popular recreation spot. It is planned to develop the Tbilisi sea into a recreational park with various sports facilities. See also [ edit ] Turtle Lake, Tbilisi Lisi Lake References [ edit ] ^ "Tbilisi Lakes" . Tbilisi City Hall. Archived from

1392-626: Is both a cause of and sensitive to environmental degradation , such as biodiversity loss , desertification , soil degradation , and climate change , all of which can cause decreases in crop yield. Genetically modified organisms are widely used, although some countries ban them . The word agriculture is a late Middle English adaptation of Latin agricultūra , from ager 'field' and cultūra ' cultivation ' or 'growing'. While agriculture usually refers to human activities, certain species of ant , termite and beetle have been cultivating crops for up to 60 million years. Agriculture

1479-444: Is defined with varying scopes, in its broadest sense using natural resources to "produce commodities which maintain life, including food, fiber, forest products, horticultural crops, and their related services". Thus defined, it includes arable farming , horticulture, animal husbandry and forestry , but horticulture and forestry are in practice often excluded. It may also be broadly decomposed into plant agriculture , which concerns

1566-539: Is limited and decreases every year. Irrigation agriculture has been one of the primary economic mainstays of the lower Kura valley since ancient times. Because of water taken out for irrigation use, up to 20% of the water that formerly flowed in the river no longer reaches the Caspian Sea. Over 70% of the water in the Iori (Gabirry) River, a major tributary of the Kura, is expended before it reaches Lake Mingachevir. Of

1653-512: Is regarded as one of the most stressed river basins in Asia. Most of the water comes from snowmelt and infrequent precipitation in the mountains, which leads to severe floods and an abundance of water for a short time of the year (generally in June and July), and a relatively low sustainable baseflow . Forest cover is sparse, especially in the Kura and Aras headwaters, and most of the water that falls on

1740-438: Is returned directly to the grassland as a major nutrient source. This system is particularly important in areas where crop production is not feasible because of climate or soil, representing 30–40 million pastoralists. Mixed production systems use grassland, fodder crops and grain feed crops as feed for ruminant and monogastric (one stomach; mainly chickens and pigs) livestock. Manure is typically recycled in mixed systems as

1827-500: The Indus Valley civilization . In China, from the 5th century BC, there was a nationwide granary system and widespread silk farming . Water-powered grain mills were in use by the 1st century BC, followed by irrigation. By the late 2nd century, heavy ploughs had been developed with iron ploughshares and mouldboards . These spread westwards across Eurasia. Asian rice was domesticated 8,200–13,500 years ago – depending on

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1914-607: The Khrami , crossing the Georgia- Azerbaijan border and flowing across grasslands into Shemkir reservoir and then Yenikend reservoir . The Kura then empties into Mingachevir reservoir , the largest body of water in Azerbaijan, formed by a dam near its namesake town at the southeastern end. The rivers Iori (also known as Qabirri ) and Alazani formerly joined the Kura, but their mouths are now submerged under

2001-594: The Kura-Aras Lowland , which covers most of central Azerbaijan and abuts the Caspian Sea. The Kura is the third largest, after the Volga and Ural , of the rivers that flow into the Caspian. Its delta is the fourth largest among the rivers that flow into the Caspian Sea, and is divided into three main sections, or "sleeves", composed of sediment the river deposited during different periods of time. Before 1998,

2088-583: The Paleolithic , after 10,000 BC. Staple food crops were grains such as wheat and barley, alongside industrial crops such as flax and papyrus . In India , wheat, barley and jujube were domesticated by 9,000 BC, soon followed by sheep and goats. Cattle, sheep and goats were domesticated in Mehrgarh culture by 8,000–6,000 BC. Cotton was cultivated by the 5th–4th millennium BC. Archeological evidence indicates an animal-drawn plough from 2,500 BC in

2175-514: The Tigris and Euphrates rivers and a canal system for irrigation. Ploughs appear in pictographs around 3,000 BC; seed-ploughs around 2,300 BC. Farmers grew wheat, barley, vegetables such as lentils and onions, and fruits including dates, grapes, and figs. Ancient Egyptian agriculture relied on the Nile River and its seasonal flooding. Farming started in the predynastic period at the end of

2262-630: The molecular clock estimate that is used – on the Pearl River in southern China with a single genetic origin from the wild rice Oryza rufipogon . In Greece and Rome , the major cereals were wheat, emmer, and barley, alongside vegetables including peas, beans, and olives. Sheep and goats were kept mainly for dairy products. In the Americas, crops domesticated in Mesoamerica (apart from teosinte) include squash, beans, and cacao . Cocoa

2349-548: The organic movement . Unsustainable farming practices in North America led to the Dust Bowl of the 1930s. Pastoralism involves managing domesticated animals. In nomadic pastoralism , herds of livestock are moved from place to place in search of pasture, fodder, and water. This type of farming is practiced in arid and semi-arid regions of Sahara , Central Asia and some parts of India. In shifting cultivation ,

2436-551: The 1920s, wetlands were drained and reservoirs were created to facilitate development of irrigation in the lower Kura valley. In the 1950s and 1960s, when the Caucasus region was part of the Soviet Union , construction of many of the reservoirs and waterworks in the Kura basin began. Of the major reservoirs in the Kura catchment, one of the earliest was at Varvara in 1952. Large-scale construction of dams continued until

2523-416: The 1920s, humans did not have a significant effect on the ecology or hydrology of the Kura catchment area. Since then, logging , grazing and especially agriculture began to have a severe outcome on the water availability of the basin. Many forested areas in the mountains have been replaced by thin grassland because of logging. These habitat changes have been detrimental to the ecology of the Kura basin. After

2610-617: The 1970s. Agriculture Agriculture encompasses crop and livestock production, aquaculture , and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization , whereby farming of domesticated species created food surpluses that enabled people to live in the cities. While humans started gathering grains at least 105,000 years ago, nascent farmers only began planting them around 11,500 years ago. Sheep, goats, pigs, and cattle were domesticated around 10,000 years ago. Plants were independently cultivated in at least 11 regions of

2697-604: The 20th century. In the 1950s, the Soviet Union started building many dams and canals on the river. Previously navigable up to Tbilisi in Georgia, the Kura is now much slower and shallower, having been harnessed by irrigation projects and hydroelectric power stations . The river is now moderately polluted by major industrial centers like Tbilisi and Rustavi in Georgia. The name Kura is related either to Mingrelian kur 'water, river' or to an ancient Caucasian Albanian language term for 'reservoir'. The Georgian name of Kura

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2784-546: The 4,525,000 hectares (11,180,000 acres) of agricultural land in the lower Kura catchment area, 1,426,000 hectares (3,520,000 acres), about 31%, are irrigated. Much of the water diverted from the river for irrigation goes to waste because of leakage from the canals, evaporation, poor maintenance, and other causes. Leaking water causes groundwater to rise, in some areas so high that about 267,000 hectares (660,000 acres) of land are so waterlogged that they are no longer suitable for agriculture. About 631,000 hectares (1,560,000 acres) of

2871-540: The Amazon Basin. Subsistence farming is practiced to satisfy family or local needs alone, with little left over for transport elsewhere. It is intensively practiced in Monsoon Asia and South-East Asia. An estimated 2.5 billion subsistence farmers worked in 2018, cultivating about 60% of the earth's arable land . Intensive farming is cultivation to maximize productivity, with a low fallow ratio and

2958-560: The Americas. Irrigation , crop rotation , and fertilizers advanced from the 17th century with the British Agricultural Revolution , allowing global population to rise significantly. Since 1900, agriculture in developed nations, and to a lesser extent in the developing world, has seen large rises in productivity as mechanization replaces human labor, and assisted by synthetic fertilizers , pesticides, and selective breeding . The Haber-Bosch method allowed

3045-466: The Caucasus region for thousands of years and first established agriculture in the Kura Valley over 4,500 years ago. Large, complex civilizations eventually grew on the river, but by 1200 CE most were reduced to ruin by natural disasters and foreign invaders. The increasing human use, and eventual damage, of the watershed's forests and grasslands, contributed to a rising intensity of floods through

3132-510: The Kura no longer reach the river, instead disappearing in the plain many kilometers from their original mouths. The following rivers are tributaries of the Kura, from source to mouth: Steppe characterizes the arid reaches of the Kura catchment, while meadows are often found in the alpine areas. The Kura catchment area is considered as part of the Kura-South Caspian Sea Drainages ecoregion . Some portions of

3219-549: The Kura-Aras lowland called the river Mother Kür , signifying the importance of the river to the region. The first irrigation agriculture began about 4,500 years ago in the eastern Azerbaijan lowlands. Trading centers were established in time, including one at Mingachevir in Azerbaijan and another at Mtskheta in Georgia. The site at Mingachevir (probably Sudagylan ), first discovered in the 1940s by archaeologist G. I. Ione, had "seven rectangular kilns ... The fuel chamber

3306-586: The Paleolithic Levant, 23,000 years ago, cereals cultivation of emmer , barley , and oats has been observed near the sea of Galilee. Rice was domesticated in China between 11,500 and 6,200 BC with the earliest known cultivation from 5,700 BC, followed by mung , soy and azuki beans. Sheep were domesticated in Mesopotamia between 13,000 and 11,000 years ago. Cattle were domesticated from

3393-486: The Three Sisters was developed in North America. The three crops were winter squash , maize, and climbing beans. Indigenous Australians , long supposed to have been nomadic hunter-gatherers , practiced systematic burning, possibly to enhance natural productivity in fire-stick farming. Scholars have pointed out that hunter-gatherers need a productive environment to support gathering without cultivation. Because

3480-793: The United Nations (FAO) posits that the roles and responsibilities of women in agriculture may be changing – for example, from subsistence farming to wage employment, and from contributing household members to primary producers in the context of male-out-migration. In general, women account for a greater share of agricultural employment at lower levels of economic development, as inadequate education, limited access to basic infrastructure and markets, high unpaid work burden and poor rural employment opportunities outside agriculture severely limit women's opportunities for off-farm work. Women who work in agricultural production tend to do so under highly unfavorable conditions. They tend to be concentrated in

3567-524: The United States is roughly 1.7 times more productive than it was in 1948. Agriculture employed 873 million people in 2021, or 27% of the global workforce, compared with 1 027 million (or 40%) in 2000. The share of agriculture in global GDP was stable at around 4% since 2000–2023. Despite increases in agricultural production and productivity, between 702 and 828 million people were affected by hunger in 2021. Food insecurity and malnutrition can be

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3654-544: The annual work-related death toll among agricultural employees is at least 170,000, twice the average rate of other jobs. In addition, incidences of death, injury and illness related to agricultural activities often go unreported. The organization has developed the Safety and Health in Agriculture Convention, 2001 , which covers the range of risks in the agriculture occupation, the prevention of these risks and

3741-553: The available work force, were employed in agriculture. This constitutes approximately 70% of the global employment of children, and in many countries constitutes the largest percentage of women of any industry. The service sector overtook the agricultural sector as the largest global employer in 2007. In many developed countries, immigrants help fill labor shortages in high-value agriculture activities that are difficult to mechanize. Foreign farm workers from mostly Eastern Europe, North Africa and South Asia constituted around one-third of

3828-636: The catchment is in Turkey, 29,743 square kilometres (11,484 sq mi) in Armenia, 46,237 square kilometres (17,852 sq mi) in Georgia, 56,290 square kilometres (21,730 sq mi) in Azerbaijan, and about 63,500 square kilometres (24,500 sq mi) are in Iran. At the confluence with the Aras River, the drainage area of the tributary is actually larger than the Kura by about 4%, and it

3915-597: The central west coast and eastern central, early farmers cultivated yams, native millet, and bush onions, possibly in permanent settlements. In the Middle Ages , compared to the Roman period , agriculture in Western Europe became more focused on self-sufficiency . The agricultural population under feudalism was typically organized into manors consisting of several hundred or more acres of land presided over by

4002-468: The cultivation of useful plants, and animal agriculture , the production of agricultural animals. The development of agriculture enabled the human population to grow many times larger than could be sustained by hunting and gathering . Agriculture began independently in different parts of the globe, and included a diverse range of taxa , in at least 11 separate centers of origin . Wild grains were collected and eaten from at least 105,000 years ago. In

4089-668: The domestication of squash (Cucurbita) and other plants. Coca was domesticated in the Andes, as were the peanut, tomato, tobacco, and pineapple . Cotton was domesticated in Peru by 3,600 BC. Animals including llamas , alpacas , and guinea pigs were domesticated there. In North America , the indigenous people of the East domesticated crops such as sunflower , tobacco, squash and Chenopodium . Wild foods including wild rice and maple sugar were harvested. The domesticated strawberry

4176-432: The farm itself, entire families can be at risk for injuries, illness, and death. Ages 0–6 may be an especially vulnerable population in agriculture; common causes of fatal injuries among young farm workers include drowning, machinery and motor accidents, including with all-terrain vehicles. The International Labor Organization considers agriculture "one of the most hazardous of all economic sectors". It estimates that

4263-430: The forests of New Guinea have few food plants, early humans may have used "selective burning" to increase the productivity of the wild karuka fruit trees to support the hunter-gatherer way of life. The Gunditjmara and other groups developed eel farming and fish trapping systems from some 5,000 years ago. There is evidence of 'intensification' across the whole continent over that period. In two regions of Australia,

4350-422: The greater use of pesticides and fertilizers. Multiple cropping , in which several crops are grown sequentially in one year, and intercropping , when several crops are grown at the same time, are other kinds of annual cropping systems known as polycultures . In subtropical and arid environments, the timing and extent of agriculture may be limited by rainfall, either not allowing multiple annual crops in

4437-425: The highlands becomes runoff instead of supplying groundwater . Attempts at flood control include the constructions of levees , dikes and dams, the largest of which is at Mingachevir , an 80-metre (260 ft)-high rockfill dam impounding over 15.73 cubic kilometres (12,750,000 acre⋅ft) of water. However, because of the high sediment content of rivers in the Kura basin, the effectiveness of these floodworks

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4524-441: The input of nutrients (fertilizer or manure ) and some manual pest control . Annual cultivation is the next phase of intensity in which there is no fallow period. This requires even greater nutrient and pest control inputs. Further industrialization led to the use of monocultures , when one cultivar is planted on a large acreage. Because of the low biodiversity , nutrient use is uniform and pests tend to build up, necessitating

4611-413: The irrigated lands have a dangerously high salt content because of mineral deposits from irrigation. Of this, 66,000 hectares (160,000 acres) are extremely salinated. Irrigation returns water, returned to the river by an extensive but outdated drainage system, contributes to severe pollution. Some of this degradation also comes from industrial and municipal wastewater discharge. The ancient inhabitants of

4698-575: The lake. After leaving the dam, the river meanders southeast where it meets its biggest tributary Tartarchay in Barda Rayon and continues across a broad irrigated plain for several hundred kilometers, turning east near Lake Sarysu , and shortly after, receives the Aras , the largest tributary, at the city of Sabirabad . At the Aras confluence it makes a large arc to the north and then flows almost due south for about 60 kilometres (37 mi), passing

4785-443: The lower half, which is typically more turbid and polluted. This pattern is also apparent in most of its tributaries, especially the larger ones that span more climate zones, such as the Aras and Alazani. There are many lakes and wetlands along the Kura's lower course, most of which are formed by flooding, and some of which are formed by irrigation runoff water. Many lakes also form at the mouths of small tributaries that do not reach

4872-476: The lower yield associated with organic farming and its impact on global food security . Recent mainstream technological developments include genetically modified food . By 2015, the agricultural output of China was the largest in the world, followed by the European Union, India and the United States. Economists measure the total factor productivity of agriculture, according to which agriculture in

4959-500: The northwest, then into a canyon near Akhaltsikhe where it starts to run northeast in a gorge for about 75 kilometres (47 mi), spilling out of the mountains near Khashuri . It then arcs east before flowing east-southeast for about 120 kilometres (75 mi), past Gori , then near Mtskheta , flows south through a short canyon and along the west side of T'bilisi , the largest city in the region. The river flows steeply southeast past Rustavi and turns eastward at its confluence with

5046-693: The original on 25 July 2011 . Retrieved 4 February 2010 . ^ Buachidze, G.; T. Tevzadze (2006). John H. Tellam; Michael O. Rivett; Rauf G. Israfilov; Liam G. Herringshaw (eds.). Chemical and Geotechnical Problems associated with the Tbilisi Water Storage Reservoir, Georgia . NATO Science Series. Vol. 74 (Urban Groundwater Management and Sustainability ed.). Springer Netherlands. pp. 393–399. doi : 10.1007/1-4020-5175-1_32 . ISBN   978-1-4020-5173-9 . ^ Akhmeteli, Nina (February–March 2010). "One sea, many fish?" . Investor . Archived from

5133-811: The original on 7 October 2011 . Retrieved 17 March 2010 . ^ Tbilisi Retrieved from " https://en.wikipedia.org/w/index.php?title=Tbilisi_sea&oldid=1254397647 " Categories : Lakes of Tbilisi Reservoirs in Georgia (country) Reservoirs built in the Soviet Union Hidden categories: Articles with short description Short description matches Wikidata Pages using gadget WikiMiniAtlas Articles using infobox body of water without alt Articles using infobox body of water without pushpin map alt Articles using infobox body of water without image bathymetry Articles containing Georgian-language text Kura (Caspian Sea) People have inhabited

5220-437: The philosophy and culture of the farmer. Shifting cultivation (or slash and burn ) is a system in which forests are burnt, releasing nutrients to support cultivation of annual and then perennial crops for a period of several years. Then the plot is left fallow to regrow forest, and the farmer moves to a new plot, returning after many more years (10–20). This fallow period is shortened if population density grows, requiring

5307-414: The poorest countries, where alternative livelihoods are not available, and they maintain the intensity of their work in conditions of climate-induced weather shocks and in situations of conflict. Women are less likely to participate as entrepreneurs and independent farmers and are engaged in the production of less lucrative crops. The gender gap in land productivity between female- and male managed farms of

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5394-440: The production of fish for human consumption in confined operations, is one of the fastest growing sectors of food production, growing at an average of 9% a year between 1975 and 2007. During the second half of the 20th century, producers using selective breeding focused on creating livestock breeds and crossbreeds that increased production, while mostly disregarding the need to preserve genetic diversity . This trend has led to

5481-477: The result of conflict, climate extremes and variability and economic swings. It can also be caused by a country's structural characteristics such as income status and natural resource endowments as well as its political economy. Pesticide use in agriculture went up 62% between 2000 and 2021, with the Americas accounting for half the use in 2021. The International Fund for Agricultural Development posits that an increase in smallholder agriculture may be part of

5568-997: The river as Tord in Persian. The river should not be confused with the Kura river in Russia , a westward flowing tributary of the Malka in Stavropol Krai ; the Kur near Kursk , Russia; Kur near Khabarovsk , also in Russia and Kor River , which is located in Fars Province , Iran . It rises in northeastern Turkey in a small valley in the Kars Upland of the Lesser Caucasus . It flows west, then north and east past Ardahan , and crosses into Georgia . It arcs to

5655-410: The river flow through a semi- desert environment. Forest cover is sparse. Almost 60 species of fish inhabit the Kura and its tributaries. Some common families include loach , bleak , trout and nase , and many of these fish are endemic to the region. Among rivers of the Caucasus, the Kura has the largest number of endemic species. The upper section of the river supports much more biodiversity than

5742-558: The river flowed all the way to the tip of the delta, where it discharged into the Caspian. In that year, the river escaped its channel and started to flow off to the west, leaving the last few kilometers abandoned. The course change is believed to be the result of a rise in the level of the Caspian Sea coupled with a major flood of the Kura. About 174 kilometres (108 mi) of the river is in Turkey, 435 kilometres (270 mi) in Georgia, and 906 kilometres (563 mi) in Azerbaijan. About 5,500 square kilometres (2,100 sq mi) of

5829-526: The river is known as: Azerbaijani : Kür , Georgian : მტკვარი , Mt’k’vari , Persian : Korr, Armenian : Կուր , Kour , and Turkish : Kür . In Greek and Latin sources of antiquity, the river was known as the Cyrus river; Ancient Greek : Κῦρος ; Latin : Cyrus , as attested by Strabo and Pliny respectively. Bundahishn , a Zoroastrian source written in Book Pahlavi , refers to

5916-409: The river. Most of the elevation change in the river occurs within the first 200 kilometres (120 mi). While the river starts at 2,740 metres (8,990 ft) above sea level, the elevation is 693 metres (2,274 ft) by the time it reaches Khashuri in central Georgia, just out of the mountains, and only 291 metres (955 ft) when it reaches Azerbaijan. The lower part of the river flows through

6003-874: The role that individuals and organizations engaged in agriculture should play. In the United States, agriculture has been identified by the National Institute for Occupational Safety and Health as a priority industry sector in the National Occupational Research Agenda to identify and provide intervention strategies for occupational health and safety issues. In the European Union, the European Agency for Safety and Health at Work has issued guidelines on implementing health and safety directives in agriculture, livestock farming, horticulture, and forestry. The Agricultural Safety and Health Council of America (ASHCA) also holds

6090-478: The salaried agricultural workforce in Spain, Italy, Greece and Portugal in 2013. In the United States of America, more than half of all hired farmworkers (roughly 450,000 workers) were immigrants in 2019, although the number of new immigrants arriving in the country to work in agriculture has fallen by 75 percent in recent years and rising wages indicate this has led to a major labor shortage on U.S. farms. Around

6177-439: The same size is 24 percent. On average, women earn 18.4 percent less than men in wage employment in agriculture; this means that women receive 82 cents for every dollar earned by men. Progress has been slow in closing gaps in women's access to irrigation and in ownership of livestock, too. Women in agriculture still have significantly less access than men to inputs, including improved seeds, fertilizers and mechanized equipment. On

6264-488: The solution to concerns about food prices and overall food security , given the favorable experience of Vietnam. Agriculture provides about one-quarter of all global employment, more than half in sub-Saharan Africa and almost 60 percent in low-income countries. As countries develop, other jobs have historically pulled workers away from agriculture, and labor-saving innovations increase agricultural productivity by reducing labor requirements per unit of output. Over time,

6351-400: The synthesis of ammonium nitrate fertilizer on an industrial scale, greatly increasing crop yields and sustaining a further increase in global population. Modern agriculture has raised or encountered ecological, political, and economic issues including water pollution , biofuels , genetically modified organisms , tariffs and farm subsidies , leading to alternative approaches such as

6438-679: The transition from hunter-gatherer to agricultural societies indicate an initial period of intensification and increasing sedentism ; examples are the Natufian culture in the Levant , and the Early Chinese Neolithic in China. Then, wild stands that had previously been harvested started to be planted, and gradually came to be domesticated. In Eurasia, the Sumerians started to live in villages from about 8,000 BC, relying on

6525-443: The ultimate destination in the Caspian most of the time. The local name for these lakes translate to dead lake or dead water , suggesting that these lakes do not support much biodiversity. Formerly navigable up to Tbilisi , the largest city on the river, the amount of water in the Kura has greatly diminished in the 20th century because of extensive use for irrigation , municipal water , and hydroelectricity generation. The Kura

6612-491: The west side of Shirvan National Park , before turning east and emptying into the Caspian Sea at Neftçala . Most of the Kura runs in the broad and deep valley between the Greater Caucasus and Lesser Caucasus Mountains, and the major tributary, the Aras, drains most of the southern Caucasus and the mountain ranges of the extreme northern Middle East . The entirety of Armenia and most of Azerbaijan are drained by

6699-671: The wild aurochs in the areas of modern Turkey and Pakistan some 10,500 years ago. Pig production emerged in Eurasia, including Europe, East Asia and Southwest Asia, where wild boar were first domesticated about 10,500 years ago. In the Andes of South America, the potato was domesticated between 10,000 and 7,000 years ago, along with beans, coca , llamas , alpacas , and guinea pigs . Sugarcane and some root vegetables were domesticated in New Guinea around 9,000 years ago. Sorghum

6786-744: The world consist of fewer than 2 hectares (4.9 acres), and take up only around 12% of all agricultural land. Farms and farming greatly influence rural economics and greatly shape rural society , affecting both the direct agricultural workforce and broader businesses that support the farms and farming populations. The major agricultural products can be broadly grouped into foods , fibers , fuels , and raw materials (such as rubber ). Food classes include cereals ( grains ), vegetables , fruits , cooking oils , meat , milk , eggs , and fungi . Global agricultural production amounts to approximately 11 billion tonnes of food, 32 million tonnes of natural fibers and 4 billion m of wood. However, around 14% of

6873-781: The world's agricultural land is seriously degraded. In recent years there has been a backlash against the environmental effects of conventional agriculture, resulting in the organic , regenerative , and sustainable agriculture movements. One of the major forces behind this movement has been the European Union , which first certified organic food in 1991 and began reform of its Common Agricultural Policy (CAP) in 2005 to phase out commodity-linked farm subsidies, also known as decoupling . The growth of organic farming has renewed research in alternative technologies such as integrated pest management , selective breeding, and controlled-environment agriculture . There are concerns about

6960-664: The world's food is lost from production before reaching the retail level. Modern agronomy , plant breeding , agrochemicals such as pesticides and fertilizers , and technological developments have sharply increased crop yields , but also contributed to ecological and environmental damage . Selective breeding and modern practices in animal husbandry have similarly increased the output of meat, but have raised concerns about animal welfare and environmental damage. Environmental issues include contributions to climate change , depletion of aquifers , deforestation , antibiotic resistance , and other agricultural pollution . Agriculture

7047-485: The world, women make up a large share of the population employed in agriculture. This share is growing in all developing regions except East and Southeast Asia where women already make up about 50 percent of the agricultural workforce. Women make up 47 percent of the agricultural workforce in sub-Saharan Africa, a rate that has not changed significantly in the past few decades. However, the Food and Agriculture Organization of

7134-495: The world. In the 20th century, industrial agriculture based on large-scale monocultures came to dominate agricultural output. As of 2021 , small farms produce about one-third of the world's food, but large farms are prevalent. The largest 1% of farms in the world are greater than 50 hectares (120 acres) and operate more than 70% of the world's farmland. Nearly 40% of agricultural land is found on farms larger than 1,000 hectares (2,500 acres). However, five of every six farms in

7221-621: The world. Production is listed in millions of metric tons, based on FAO estimates. Animal husbandry is the breeding and raising of animals for meat, milk, eggs , or wool , and for work and transport. Working animals , including horses, mules , oxen , water buffalo , camels, llamas, alpacas, donkeys, and dogs, have for centuries been used to help cultivate fields, harvest crops, wrangle other animals, and transport farm products to buyers. Livestock production systems can be defined based on feed source, as grassland-based, mixed, and landless. As of 2010 , 30% of Earth's ice- and water-free area

7308-505: Was a trapezoid. The inner walls and floor were covered with a special coating. These kilns were attributed to the third century B.C. [2,300 years ago]. The number of kilns and the quantity of raw material indicate a trade center." The settlement was probably destroyed by a fire around A.D. 600, but its demise is uncertain. But perhaps the most famous of the ancient settlements on the Kura is the "cave town" at Uplistsikhe , Georgia, first settled as early as 3,500 years ago. The city, carved into

7395-640: Was domesticated by the Mayo Chinchipe of the upper Amazon around 3,000 BC. The turkey was probably domesticated in Mexico or the American Southwest. The Aztecs developed irrigation systems, formed terraced hillsides, fertilized their soil, and developed chinampas or artificial islands. The Mayas used extensive canal and raised field systems to farm swampland from 400 BC. In South America agriculture may have begun about 9000 BC with

7482-560: Was domesticated in the Sahel region of Africa by 7,000 years ago. Cotton was domesticated in Peru by 5,600 years ago, and was independently domesticated in Eurasia. In Mesoamerica , wild teosinte was bred into maize (corn) from 10,000 to 6,000 years ago. The horse was domesticated in the Eurasian Steppes around 3500 BC. Scholars have offered multiple hypotheses to explain the historical origins of agriculture. Studies of

7569-584: Was used for producing livestock, with the sector employing approximately 1.3 billion people. Between the 1960s and the 2000s, there was a significant increase in livestock production, both by numbers and by carcass weight, especially among beef, pigs and chickens, the latter of which had production increased by almost a factor of 10. Non-meat animals, such as milk cows and egg-producing chickens, also showed significant production increases. Global cattle, sheep and goat populations are expected to continue to increase sharply through 2050. Aquaculture or fish farming,

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