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Iquiri National Forest

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Iquiri National Forest ( Portuguese : Floresta Nacional do Iquiri ) is a national forest in the state of Amazonas , Brazil. It is a sustainable use conservation unit, so harvesting of forest resources such as timber is allowed in accordance with a management plan.

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42-528: The Iquiri National Forest has an area of 1,472,598.67 hectares (3,638,870.6 acres). It is in the municipality of Lábrea in Amazonas. The Iquiri National Forest is in the Amazon biome . The forest contains 73.05% dense rainforest and 26.95 open rainforest. It has great potential for sustainable harvesting of timber and other forest products such as oils, resins, nuts, seeds and fruits. The Iquiri National Forest

84-620: A consistent and integrated approach to preparing management plans for the conservation units in the BR-319 area of influence. These are the Abufari Biological Reserve , Cuniã Ecological Station , Nascentes do Lago Jari and Mapinguari national parks, Balata-Tufari , Humaitá and Iquiri national forests, and the Lago do Capanã-Grande , Rio Ituxi , Médio Purus and Lago do Cuniã extractive reserves. An advisory council for

126-962: A large area of this habitat. Of the 1,149 federal and state protected areas in Brazil in 2014, 247 covering 1,100,000 square kilometres (420,000 sq mi) were in the Amazon biome and accounted for 73% of the total area protected at the federal and state levels in Brazil. Federal units covered 587,000 square kilometres (227,000 sq mi) and state units covered 523,000 square kilometres (202,000 sq mi). These included fully protected national and state parks (22%), ecological stations (9%), biological reserves (4%) and wildlife refuges as well as sustainable use national and state forests (26%), environmental protection areas (17%), extractive reserves (12%), sustainable development reserves (10%),and areas of ecological interest . More than 15,000 square kilometres (5,800 sq mi) of

168-489: A whole has annual rainfall from 1,500 to 3,000 millimetres (59 to 118 in), about half of which is carried by winds from the Atlantic, and the other half from evapotranspiration within the biome. There are wide variations in total rainfall and distribution of rainfall throughout the year. The Amazon watershed covers about 5,846,100 square kilometres (2,257,200 sq mi). The Amazon River accounts for 15–16% of

210-505: Is covered by podzols and 55% by acrisols and ferralsols , with the remainder covered by alluvial and litholic soils and scattered areas of hydromorphic plinthosols . In the biome as a whole podzols cover just 136,000 square kilometres (53,000 sq mi), or 2.7% of the area. In Brazil the average temperature of the biome is 22 to 26 °C (72 to 79 °F) and average rainfall is 2,300 millimetres (91 in), but there are wide variations from one region to another. The biome as

252-536: Is distinguished as being completely treeless. The term "campinarana" is used for the transition between campina and the rainforest. Campinarana is found in isolated areas of the Rio Negro and Rio Branco basins in the north of Brazil. Patches of campinarana, which may cover several thousand square kilometres, are found in the transitional region from the Guyana Shield to the Amazon basin. Campinarana

294-493: Is equally rich and 13,367 species of vascular plants have been found, approximately 40% of which is considered endemic. The shield is overlain by the largest expanse of tropical forest on any Precambrian shield area in the world. Guianan rain forest is similar in nature to Amazonian rain forest and known protected areas include the Iwokrama Forest of central Guyana, Kaieteur, Kanuku National Park of southern Guyana,

336-863: Is one of the three cratons of the South American Plate . It is a 1.7 billion-year-old Precambrian geological formation in northeast South America that forms a portion of the northern coast. The higher elevations on the shield are called the Guiana Highlands , which is where the table-like mountains called tepuis are found. The Guiana Highlands are also the source of some of the world's most well-known waterfalls such as Angel Falls , Kaieteur Falls and Cuquenan Falls . The Guiana Shield underlies Guyana (previously British Guiana ), Suriname (previously Dutch Guiana ), and French Guiana (or Guyane ), much of southern Venezuela , as well as parts of Colombia and Brazil . The rocks of

378-413: Is open forest on sandy soil where sunlight can reach the ground. More than half the species of orchid in the Amazon lowlands are found in this type of forest. The terms campina and campinarana both describe white sand savannas that are very poor in nutrients. They may be flooded periodically or seasonally, in which case the roots suffer from lack of aeration. The vegetation is stunted. For some, campina

420-917: Is similar to the Rio Negro Campinarana. The Northeastern Brazil restingas are coastal dune habitats that extend along the coast of northeastern Brazil, interspersed with lagoons, mangroves and patches of caatinga savanna. The land behind the dunes may include dwarf palms, bromeliads, ferns, shrubs, grasses and scrub trees. The more exposed areas mainly hold medium-tall grasses and scrub trees, while sheltered areas hold patches of cactus and low dry thicket. Fauna include marmosets and jaguarundis , proboscis bats , lesser sac-winged bats , bulldog bats , and Davy's naked-backed bats , wood stork , roseate spoonbill , white-necked heron , great egret , cattle egret , black-crowned night heron , and Neotropic cormorant . The ecoregion has various endemic species. The Lençóis Maranhenses National Park protects

462-704: Is the highest summit of the larger Neblina massif , a highly eroded sandstone plateau that straddles the Venezuela-Brazil border and that has lost the typical tabletop shape of the other tepuis in the region. The Guiana Shield is one of the regions of highest biodiversity in the world, and has many endemic species. The region houses over 3000 vertebrate species: 1168 fresh water fish, 269 amphibians (54% endemics), 295 reptiles (29%), 1004 birds (7.7%), and 282 mammals (11%). Diversity of invertebrates remains largely undocumented, but there are several species of endemic butterflies and dung beetles. Plant life

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504-432: Is the largest tropical rainforest in the world. It covers between 5,500,000 and 6,200,000 square kilometres (2,100,000 and 2,400,000 sq mi) of the 6,700,000 to 6,900,000 square kilometres (2,600,000 to 2,700,000 sq mi) Amazon biome. The somewhat vague numbers are because the rainforest merges into similar biomes across its boundaries. The rainforest is Tropical Broadleaf Forest , so-called because most of

546-479: Is typically found on leached white sands around circular swampy depressions in lowland tropical moist forest. The soil is low in nutrients, with highly acidic humus. Campinarana includes savannah, scrub and forests. The savannah is mainly composed of grasses and lichens, found in the wet plains beside lakes and rivers. The scrub has bare sand, herbaceous plants, shrubs and trees less than 7 metres (23 ft) high. The nutrient-poor Japurá-Solimões-Negro moist forest

588-645: The Tamshiyacu Tahuayo Regional Conservation Area of Peru is classed as a blackwater river, but often has similar chemistry to the whitewater rivers of the region since it is in the Amazon River floodplain, and receives water from the Amazon. The Amazon and its major tributaries such as the Xingu , Tapajós , Madeira , Purus and Rio Negro form barriers to the geodispersal of plants, animals and even insects. Thus

630-507: The white-fronted capuchin ( Cebus albifrons ) and hairy saki ( Pithecia hirsuta ) are found west of the Tapajós, while the white-nosed saki ( Chiropotes albinasus ) is only found east of the river. The World Wildlife Fund divides the biome into ecoregions , often defined as the regions lying between major tributaries of the Amazon. Most of the interior of the Amazon basin is covered by rainforest. The dense tropical Amazon rainforest

672-741: The Amazon basin. J. J. Morrone (2006) defines the Amazonian subregion in this broader sense, divided into the biogeographical provinces of Guyana, Humid Guyana, Napo, Imeri, Roraima, Amapá, Várzea, Ucayali, Madeira, Tapajós-Xingu, Pará, Yungas and Pantanal. The World Wildlife Fund takes a similar scope, where the Amazon biome includes the Guiana Shield rain forests in the north and the Chiquitano dry forests of Bolivia. The biome covers parts of Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana, Suriname and French Guiana. In Brazil

714-576: The Brazilian Amazon biome was deforested in 2008–12, of which only 6% took place within protected areas. 71% of federal and state protected areas in Brazil suffered no deforestation in this period. Although the World Economic Forum ranks Brazil first in the world in terms of nature tourism potential, the country is 52nd in tourism competitiveness when factors such as infrastructure are considered. Low public use, in part due to

756-468: The Guiana Shield consist of metasediments and metavolcanics ( greenstones ) overlain by sub-horizontal layers of sandstones , quartzites , shales and conglomerates intruded by sills of younger mafic intrusives such as gabbros . The oldest rocks in the shield consist of Archean Imataca Complex, composed of a quartz - feldspar gneiss and subordinate mafic gneiss. The Guri Fault marks

798-590: The Guiana Shield: The north-central part of the Guiana Highlands is dominated by high flat-topped peaks called tepuis , of the Roraima supergroup and Quasi-Roraima formation, and the rounded granite peaks of the Parguaza and Imataca complexes to the north and southwestern edges of the area. The highest point in the shield is Pico da Neblina in Brazil at 2,995 metres (9,826 ft). Pico da Neblina

840-545: The Iquiri forest was created on 26 October 2012. Amazon biome The Amazon biome ( Portuguese : Bioma Amazônia ) contains the Amazon rainforest , an area of tropical rainforest , and other ecoregions that cover most of the Amazon basin and some adjacent areas to the north and east. The biome contains blackwater and whitewater flooded forest, lowland and montane terra firma forest , bamboo and palm forest, savanna, sandy heath and alpine tundra. Some areas of

882-953: The Iquitos or Jutai Arch in Peru and Acre , the Carauari Arch across the Rio Negro and Solimões , the Purus Arch to the west of Manaus , the Monte Alegre Arch to the west of the Tapajós and the Gurupa Arch to the west of Marajó . Under the Paleoarch model, paleobasins between the arches form centers for biological diversification. Thus the Iquitos arch is considered the main reason for the different species of frogs and rodents and different forest types on either side of

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924-860: The UNESCO World Heritage Site Central Suriname Nature Reserve of Suriname , the Guiana Amazonian Park in French Guiana and the Tumucumaque National Park in the Amapá State of Brazil . In Venezuela the forests are protected by Canaima , Parima-Tapirapeco and Serranía de la Neblina national parks. In 2014, the Government of Colombia designated a 250 hectare area of the Guiana Shield, as

966-632: The amphibians, 62% of reptiles, 20% of birds and 25% of mammals are endemic to the biome. 109 species of lizards and amphisbaena reptiles are known to be present, and 138 species of snakes. Of the 1,300 bird species 20% are endemic and 8.4% are endangered. A relatively small area may contain a variety of ecoregions. Thus the Pico da Neblina National Park in the north of Amazonas, Brazil contains campinarana , dense rainforest and contact between campinarana and rainforest. The vegetation formations include terra firme forests and igapós . Submontane forests climb

1008-479: The biome are threatened by deforestation for timber and to make way for pasture or soybean plantations. The Amazon biome has an area of 6,700,000 square kilometres (2,600,000 sq mi). The biome roughly corresponds to the Amazon basin, but excludes areas of the Andes to the west and cerrado (savannah) to the south, and includes lands to the northeast extending to the Atlantic ocean with similar vegetation to

1050-419: The biome covers more than 4,100,000 square kilometres (1,600,000 sq mi) and covers all or parts of the states of Acre , Amazonas , Roraima , Rondônia , Pará , Amapá , Maranhão , Tocantins and Mato Grosso . The Amazon biome covers 49.29% of Brazil. 16% of the biome is in Peru. As of 2015 about 23.4% of Peru's Amazon biome was protected, but of this less than half was fully protected. Much of

1092-800: The broad definition favored by the World Wide Fund for Nature (WWF) the Amazon biome would also include the Tepuis , table-top mountains with unique vegetation, the Negro-Branco , Guianan Highlands , Guianan piedmont and lowland and Guianan moist forests and the Guianan savanna . In the southwest Amazon at least 161,500 square kilometres (62,400 sq mi) of forest are dominated by bamboos . These occur in areas where there has been recent tectonic uplift combined with fast mechanical erosion and poor drainage. In each patch of bamboos all

1134-510: The ecosystems of the biome there is huge biological diversity. One source says there are an estimated 60,000 plant species, of which 30,000 are endemic. Another says there are 30,000 to 50,000 plant species. The Brazilian Ministry of the Environment as of January 2013 listed 2,500 species of trees and 30,000 species of plants. There are 1,400 species of fish, 163 amphibians, 387 reptiles and more than 500 mammals including 90 primates. 87% of

1176-417: The ecosystems, 34 are forest areas covering 78% of the biome, 6 are Andean covering 1.5%, 5 are floodplains covering 5.83%, 5 are savanna covering 12.75% and two are tropical steppes covering 1.89%. The Brazilian Amazon holds 30 of the 53 ecosystems, of which 19 are forests with 77.5% of the area. The borders of the biome hold ecotones where it blends into other biomes such as the cerrado. Within and across

1218-764: The first steps of the Guiana Plateau to about 1,000 metres (3,300 ft), followed by montane forests. Lichens and bromeliads are found up to 2,000 metres (6,600 ft). There is also alpine tundra in the tabular plateaus. The Amazon basin contains several large areas of moist forest, collectively called the Amazon rainforest. These are the Caquetá , Japurá–Solimões–Negro , Juruá–Purus , Madeira–Tapajós , Napo , Purus–Madeira , Solimões–Japurá , Southwest Amazon , Tapajós–Xingu , Tocantins–Araguaia–Maranhão , Uatuma–Trombetas , Ucayali , and Xingu–Tocantins–Araguaia moist forests. Each has distinctive vegetation. In

1260-624: The inaccessibility of the Amazon national and federal parks, mean that they fail to support the local economies and therefore lack support from society, especially the local communities. The national and state forests have low levels of formal sustainable logging contracts, the Tapajós National Forest in Pará being an exception. Brazil has strong systems for monitoring land cover and deforestation, but as of 2014 64% of managers of protected areas said they had not monitored biodiversity in

1302-474: The local people and many scientists called the permanently waterlogged swamp on the lower Amazon " igapó " and all types of periodically flooded land " várzea ". A more recent definition, from Prance, is: Major flooded areas include the Iquitos , Purus , Monte Alegre , Gurupa and Marajó várzeas. The Majaró várzea is at the mouth of the Amazon and is affected by both freshwater and tidal flows. Campina

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1344-462: The plants flower every 27–28 years, producing huge numbers of seeds, before dying. The Chandless State Park is in the centre of the bamboo forest region of the south western Amazon biome, and has three endemic species of the Guadua genus of bamboo. Vegetation is classified as forest with palms, forest with bamboo, alluvial forest with bamboo and dense forest. Before Ghillean Prance 's 1979 study,

1386-472: The previous five years, and more than half said they did not have tools to monitor social and environmental development. The " Arc of Deforestation " is in the eastern and southern borders of the biome. As of 2006 about 16% of the Amazon biome in Brazil had been deforested. Satellite images show that in the 2006–11 period total deforestation in the Amazon biome was 45,100 square kilometres (17,400 sq mi), of which 34,700 hectares (86,000 acres) were in

1428-734: The properties produced 78.09% of the crop in the cerrado biome, while 37.45% produced 21.91% of the crop in the Amazon biome. In 2000 the Brazilian government banned creation of sugarcane plantations in the Amazon biome. In 2010 a presidential decree made low-interest credit available to oil palm development, but only on land that had been deforested before 2008. This may prove an environmentally sustainable economic solution. Guiana Shield The Guiana Shield ( French : Plateau des Guyanes, Bouclier guyanais ; Dutch : Hoogland van Guyana, Guianaschild ; Portuguese : Planalto das Guianas, Escudo das Guianas ; Spanish : Escudo guayanés )

1470-534: The ridge. The soil is generally very poor in nutrients, and areas that have been deforested are often unsuitable for agriculture or pasture. A large part of the phosphorus necessary for life is blown by the wind from Africa; as diatomeous dust from the Bodélé Depression and as smoke due to biomass burning in Africa. There are wide regional variations in soil types. Thus 20% of the Rio Negro basin

1512-533: The southern boundary of the complex. South of that fault are Early Proterozoic rocks consisting of the metavolcanic Pastora Supergroup and the granitic plutonic Supamo Complex. The Cuchivero Group consists of ash flow tuff and granitic plutonic rocks. The Early to Middle Proterozoic Roraima Group consists of continental clastic sedimentary rocks. These Precambrian sediments include quartz sandstones , quartzites , and conglomerates presumed to be 1.8 to 1.4 Ga in age. There are three upland areas of

1554-617: The soybean farms in the Amazonia Legal mostly occupy cerrado areas, not the Amazon biome. A statement by Cargill in 2006 said, "Soy occupies less than 0.6 percent of the land in the Amazon biome today, and most of that soy is grown on the fringes of the Amazon biome in the transitional area between the Cerrado and the forest. A 2010 assessment of soybean farmers associated with the Grupo André Maggi found that 62.55% of

1596-520: The terrain of the Amazon biome, particularly around the rivers, is lowland plains. The Guiana Shield is an area of highlands along the border between Brazil and Venezuela and Guyana. The southern Amazonian highlands cross parts of Rondonia and Mato Grosso and the southern parts of Amazonas and Para. The Amazon basin is crossed by ridges or "paleoarches" that connect the Guiana and Central Brazil shields and divide it into geological sub-basins. They are

1638-581: The three soy-producing states of Mato Grosso, Para and Rondonia. A 2009 survey showed that of 620 recently deforested areas 203, or 32%, had been converted to pasture while 12, or less than 1%, were being used for soybeans. The biome is not the same as the Amazônia Legal , which covers a larger area of Brazil. The Amazon biome covers about 82% of the Legal Amazon if cerrado and campinarana are excluded. Defenders of soybean farming point out that

1680-409: The total water discharged by rivers into the oceans of the world. Rivers may be blackwater , whitewater or clearwater. Thus the Rio Negro ("Black River") has clear, jet-black water caused by decomposition of organic matter in swamps along its margins, combined with low levels of silt. The Rio Branco ("White River") and the Amazon itself have yellowish waters loaded with silt. The Tahuayo River in

1722-442: The trees have broad leaves. The basin also holds flooded riparian forest or várzea , seasonal forest and savanna . Seasonal forest covers much of the southeast border, with marked dry seasons when there are frequent fires. The Amazon biome contains areas of other types of vegetation including grasslands, swamps, bamboos, and palm forests. There are 53 major ecosystems and more than 600 types of land and freshwater habitat . Of

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1764-600: Was created by decree on 8 May 2008 and is administered by the Chico Mendes Institute for Biodiversity Conservation (ICMBio). It is classed as IUCN protected area category VI (protected area with sustainable use of natural resources) with the objective of sustainable multiple use of forest resources, maintenance and protection of water resources and biodiversity, recovery of degraded areas and support for sustainable exploitation of native forests and scientific research. An ordinance of 9 January 2012 provided for

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