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83-513: The oval Tarim Basin with its central Taklamakan Desert is bounded on the north, west, and south by mountains. On the east side the Kumtag is an unbroken plain about 100 miles from north to south that runs from the Taklamakan to Gansu province and Mongolia. Many modern maps do not show a Kumtag in this sense, which implies that the usage may be out of date. The Kumtag Desert is a section of

166-842: A consequence of the Han–Xiongnu War from 133 BC to 89 AD, the Tarim Basin region of Xinjiang in Northwest China, including the Saka-founded oasis city-state of Khotan and Kashgar, fell under Han Chinese influence, beginning with the reign of Emperor Wu (r. 141–87 BC) of the Han dynasty . Much like the neighboring people of the Kingdom of Khotan , people of Kashgar, the capital of the Shule Kingdom , spoke Saka , one of

249-670: A flood, We went out among their cities, We tore down the idol-temples, We shat on the Buddha's head! In Turkic: kälginläyü aqtïmïz kändlär üzä čïqtïmïz furxan ävin yïqtïmïz burxan üzä sïčtïmïz The Buddhist Uyghurs of the Kingdom of Qocho and Turfan embraced Islam after conversion at the hands of the Muslim Chagatai Khizr Khwaja. Kara Del was a Mongolian ruled and Uighur populated Buddhist Kingdom. The Muslim Chagatai Khan Mansur invaded and used

332-414: A more or less thin kamish steppe growing on level ground; and this in turn is followed by another very narrow belt of sand , immediately south of Achik-kuduk Finally in the extreme north we have the characteristic and sharply defined belt of kamish steppe, stretching from east-northeast to west-southwest and bounded on north and south by high, sharp cut clay terraces. "At the points where we measured them

415-643: A much smaller Kumtag. This is a rectangle with a northwest corner south of Lop Nor , a southern edge along the Altyn-Tagh and an eastern edge just beyond the Gansu border. Near the northeast corner is the Jade Gate which is often taken as the western end of the Great Wall. From space it appears as a belt of orange sand dunes. This is probably the 2500 square kilometer area mentioned below. The Kumtag Desert

498-546: A number of Mongol nomadic tribes. These tribes resented the conversion of khan Tarmashirin to Islam and the move of the khan to the sedentary areas of Transoxiana . They were behind the revolt that ended in Tarmashirin's death. One of the khans that followed Tarmashirin, Changshi , favored the east and was non-Muslim. In the 1340s as a series of ephemeral khans struggled to hold power in Transoxiana, little attention

581-574: A semi-arid or continental climate. Extremes can be recorded in the summer of up to 45 °C (115 °F) and in winter of down to −55 °C (−65 °F). Besides this major seasonal difference, fluctuations between day and night are also significant. In both the highlands of Mongolia and northern Nevada , 30 °C (85 °F) can be reached during the day with sub-freezing readings at night. Steppes average 250–500 mm (10–20 in) of annual precipitation and feature hot summers and cold winters when located in mid-latitudes. In addition to

664-641: A tight-knit partnership, with intermarriage between Dunhuang and Khotan's rulers and Dunhuang's Mogao grottos and Buddhist temples being funded and sponsored by the Khotan royals, whose likenesses were drawn in the Mogao grottoes. Halfway in the 10th century Khotan came under attack by the Karakhanid ruler Musa, a long war ensued between the Turkic Karakhanid and Buddhist Khotan which eventually ended in

747-683: A tomb dated to as early as the 7th century BC. According to the Sima Qian 's Shiji , the nomadic Indo-European Yuezhi originally lived between Tengri Tagh ( Tian Shan ) and Dunhuang in Gansu , China. However, the Yuezhi were assaulted and forced to flee from the Hexi Corridor of Gansu by the forces of the Xiongnu ruler Modu Chanyu , who conquered the area in 177–176 BC (decades before

830-513: A town named after its Saka inhabitants (i.e. saγlâ ). Although the ancient Chinese called Khotan Yutian (于闐), its more native Iranian names during the Han period were Jusadanna (瞿薩旦那), derived from Indo-Iranian Gostan and Gostana , the names of the town and region around it, respectively. Around 200 BCE, the Yuezhi were overrun by the Xiongnu . The Xiongnu then tried to invade the western region of China, but ultimately failed and lost control of

913-540: Is actually the earliest fortified urban settlement in the entire region, covering 6 hectares, and developed in four phases between c. 770 BC and 80 AD. Spouted jars were found at this site, similar to those of Chawuhu culture, and buckles and moulds with animal motifs resemble steppe traditions. Another people in the region besides these Tarim people were the Indo-Iranian Saka people, who spoke various Eastern Iranian Khotanese Scythian or Saka dialects. In

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996-437: Is an ecoregion characterized by grassland plains without closed forests except near rivers and lakes. Steppe biomes may include: A steppe is usually covered with grass and shrubs , depending on the season and latitude . The term steppe climate denotes a semi-arid climate , which is encountered in regions too dry to support a forest , but not dry enough to be a desert . Steppes are usually characterized by

1079-685: Is an example of a steppe region in North America outside of the Great Plains. In South America , cold steppe can be found in Patagonia and much of the high elevation regions east of the southern Andes . Relatively small steppe areas can be found in the interior of the South Island of New Zealand . In Australia , a moderately sized temperate steppe region exists in the northern and northwest regions of Victoria , extending to

1162-684: Is another steppe region in Central Europe , centered in Hungary but also including portions of Slovakia , Poland , Ukraine , Romania , Serbia , Croatia , Slovenia , and Austria . Another large steppe area ( prairie ) is located in the central United States , western Canada and the northern part of Mexico . The shortgrass prairie steppe is the westernmost part of the Great Plains region. The Columbia Plateau in southern British Columbia , Oregon , Idaho , and Washington state ,

1245-745: Is currently no road east across the Kumtag Desert to Dunhuang, but caravans somehow made the crossing through the Yangguan pass south of the Jade Gate. The whole Tarim Basin and the Taklamakan Desert are surrounded by railroads. The Southern Xinjiang Railway branches from the Lanxin Railway near Turpan, follows the north side of the basin to Kashgar, and curves southeast to Khotan, while Hotan–Ruoqiang railway loops around

1328-507: Is expanding and threatening to engulf previously productive lands with its arid wasteland character. Several years prior the estimated size of the desert was 2500 square kilometres, but with recent expansion, the Kumtag Desert is already considerably larger as of 2008. The Kumtag Desert is continuing a process of expansion that is the result of centuries of overgrazing of this region that is beyond its carrying capacity. According to

1411-846: Is now replaced by the Karakoram Highway south from Kashgar. To the west of Kashgar via the Irkeshtam border crossing is the Alay Valley , which was once the route to Persia. Northeast of Kashgar the Torugart pass leads to the Ferghana Valley . Near Uchturpan the Bedel Pass leads to Lake Issyk-Kul and the steppes. Somewhere near Aksu the difficult Muzart Pass led north to the Ili River basin (Kulja). Near Korla

1494-470: Is of some importance historically. My own preference is for an explanation connecting it semantically with the name Saka, for the Iranian inhabitants of Khotan... In Northwest China , Khotanese-Saka-language documents, ranging from medical texts to Buddhist literature , have been found, primarily in Khotan and Tumshuq (northeast of Kashgar). They largely predate the arrival of Islam to the region under

1577-608: Is still the issue of drifting sand, it is thought by the experts that the sand is mostly blown along the direction of the future railway rather than across it, and can be handled with certain precautions. 42°42′00″N 90°16′00″E  /  42.7°N 90.2667°E  / 42.7; 90.2667 Tarim Basin The Tarim Basin is an endorheic basin in Xinjiang , Northwestern China occupying an area of about 888,000 km (343,000 sq mi) and one of

1660-467: Is succeeded by a region that exhibits proofs of wind modelling on an extraordinarily energetic and well-developed scale, the results corresponding to the jardangs and the wind- eroded gullies of the Desert of Lop . Both sets of phenomena lie parallel to one another; from this we may infer that the winds which prevail in the two deserts are the same. Next comes, sharply demarcated from the zone just described,

1743-667: Is the Kunlun Mountains on the edge of the Tibetan Plateau . The Taklamakan Desert dominates much of the basin. The historical Uyghur name for the Tarim Basin is Altishahr ( Traditional Uyghur : آلتی شهر , Chinese : 六城 ), which means 'six cities' in Uyghur . The region was also called Little Bukhara or Little Bukharia . Xinjiang consists of two main geographically, historically, and ethnically distinct regions with different historical names, Dzungaria and

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1826-709: The Achaemenid era Old Persian inscriptions found at Persepolis , dated to the reign of Darius I (r. 522–486 BC), the Saka are said to have lived just beyond the borders of Sogdiana . Likewise, an inscription dated to the reign of Xerxes I (r. 486–465 BC) has them coupled with the Dahae people of Central Asia. The contemporary Greek historian Herodotus noted that the Achaemenid Persians called all Indo-Iranian Scythian peoples "Saka". They were known as

1909-642: The Eastern Iranian languages . As noted by the Greek historian Herodotus, the contemporary Persians labelled all Scythians "Saka". Indeed, modern scholarly consensus is that the Saka language, ancestor to the Pamir languages in northern India and Khotanese in Xinjiang , belongs to the Scythian languages . During China's Tang dynasty (618–907 AD), the region once again came under Chinese suzerainty with

1992-777: The Four Garrisons of Anxi . Tang hegemony beyond the Pamir Mountains in modern Tajikistan and Afghanistan ended with revolts by the Turks, but the Tang retained a military presence in Xinjiang. These holdings were later invaded by the Tibetan Empire to the south in 670. For the remainder of the Tang dynasty, the Tarim Basin alternated between Tang and Tibetan rule as they competed for control of Central Asia. As

2075-906: The Han Chinese conquest and colonization of western tip of Gansu or the establishment of the Protectorate of the Western Regions ). In turn the Yuezi attacked and pushing the Sai (i.e. Saka) west into Sogdiana, where in the mid-2nd century BC the latter crossed the Syr Darya into Bactria , but also into the Fergana Valley where they settled in Dayuan , south towards northern India, and eastward as well, where they settled in some of

2158-675: The Kaidu river . Structures made of mud bricks were found at Xintala , showing building techniques similar to those seen in early oasis sites in western Central Asia, as well as in Yanbulake . There were no burials in Xintala culture, and its settlements were small. Autosomal genetic evidence suggests that the earliest Tarim people arose from locals of primarily Ancient North Eurasian descent with significant Northeast Asian admixture. The Tarim mummies have been found in various locations in

2241-533: The Kara-Khanid Khanate in Semirechye , Western Tian Shan , and Kashgaria . The Karakhanids became the first Islamic Turkic dynasty in the tenth century when Sultan Satuq Bughra Khan converted to Islam in 966 while he controlled Kashgar. Satuq Bughra Khan and his son directed endeavors to preach Islam among the Turks and engage in conquests. Satok Bughra Khan's nephew or grandson Ali Arslan

2324-549: The Kazakh Steppe with several roads east. The Dzungarian Gate was once a migration route and is now a road and rail crossing . Tacheng or Tarbaghatay is a crossroads and former trading post. The Tarim Basin is the result of an amalgamation between an ancient microcontinent and the growing Eurasian continent during the Carboniferous to Permian periods, a process which ended in the earliest Triassic with

2407-901: The Mediterranean area also hosts the same steppe-like vegetation, such as the Algerian-Moroccan Hautes Plaines and by extension the North Saharan steppe and woodlands . In Asia , a subtropical steppe can be found in semi-arid lands that fringe the Thar Desert of the Indian subcontinent as well as much of the Deccan Plateau in the rain shadow of the Western Ghats , and the Badia of

2490-415: The Taklamakan Desert that lies east-southeast of the Desert of Lop . It is bordered by Dunhuang in the east, Tian Shan in the north and has an area of more than 22,800 square kilometers. Its southern rim is marked by a labyrinth of hills, dotted in groups and irregular clusters. Between these and the Altyn-Tagh is a broad latitudinal valley, seamed with watercourses that come down from the foothills of

2573-507: The Taklamakan Desert , one south, and a middle one connecting both through the Lop Nor region. In the early period, beginning around 2000 BC, there were six different cultural zones in the Tarim Basin, and bronze began to appear. One of these cultures was the Xintala culture ( c.  1700 –1500 BC), near the site of Yanqi, also known as Karashar , to the north and east of the Tarim, at

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2656-823: The Turkic Kara-Khanids . Similar documents in the Khotanese-Saka language were found in Dunhuang dating mostly to the 10th century. After the collapse of the Uyghur Khaganate of modern-day Mongolia , Uyghur people migrated to the Tarim Basin and mixed with the Tocharians and converted to their religion, and adopted their method of oasis agriculture. In the tenth century, the Karluks , Yagmas , Chigils and other Turkic tribes founded

2739-540: The 10th century "makes it likely that the ruler of Khotan was a speaker of Iranian ." Furthermore, he elaborated on the early name of Khotan: The name of Khotan is attested in a number of spellings, of which the oldest form is hvatana , in texts of approximately the 7th to the 10th century AD, written in an Iranian language itself called hvatana by the writers. The same name is attested also in two closely related Iranian dialects, Sogdian and Tumshuq ...Attempts have accordingly been made to explain it as Iranian, and this

2822-414: The 3rd century, bearing dual inscriptions in Chinese and Gandhari Prakrit in the Kharosthi script. Although Prakrit was the administrative language of nearby Shanshan , 3rd-century documents from that kingdom record the title hinajha (i.e. "generalissimo") for the king of Khotan, Vij'ida-simha, a distinctively Iranian-based word equivalent to the Sanskrit title senapati , yet nearly identical to

2905-555: The AFP news report of November, 2007: "Towering sand dunes [of the Kumtag Desert] loom over the ancient Chinese city of Dunhuang ". According to Hogan: "Rapid expansion of the Kumtag Desert and other dunes formations threaten to engulf Yungang and other archaeological sites"; moreover, the desertification adjacent to the Kumtag Desert is part of a larger problem in northern China where the present rate of desertification in this single region of China (e.g. Northern China) now exceeds 1,000 square miles (2,600 km) per annum. To mitigate

2988-558: The Afaqi (White Mountain) and the Ishaqi (Black Mountain). The Ishaqi defeated the Afaqi and the Afaq Khoja invited the 5th Dalai Lama (the leader of the Tibetans ) to intervene on his behalf in 1677. The Dalai Lama then called on his Dzungar Buddhist followers in the Dzungar Khanate to act on the invitation. The Dzungar Khanate conquered the Tarim Basin in 1678, during the Dzungar conquest of Altishahr , after which they set up Afaq Khoja as their puppet ruler. Xinjiang did not exist as one unit until 1884 under Qing rule. It consisted of

3071-423: The Alagou sites near the Turfan basin, and north to the region close to Ürümqi . Earlier diggings in the southern Tarim Basin, in the 1990s, suggested that Yuansha (Djoumbulak Koum) in the Keriya river valley was the earliest fortified urban site, from around 400 BC, but new surveys and excavations between 2018 and 2020, showed that the site Kuiyukexiehai'er (Koyuk Shahri), located in the northern Tarim Basin,

3154-411: The Altyn-tagh. Grapes and other crops are grown in oases in low-lying areas. Elsewhere, the desert supports scrubby desert plants, water reaching them in some instances at intervals of years only. This part of the desert has a general slope northwest towards the relative depression of the Kara-koshun . A noticeable feature of the Kumtag is the presence of large accumulations of drift-sand, especially along

3237-522: The Karakhanid leader. The "infidels" were defeated and driven towards Khotan by Yusuf Qadir Khan and the four Imams, but the Imams were assassinated by the Buddhists prior to the last Muslim victory. After Yusuf Qadir Khan's conquest of new land in Altishahr towards the east, he adopted the title "King of the East and China". In 1006, the Muslim Kara-Khanid ruler Yusuf Kadir (Qadir) Khan of Kashgar conquered Khotan, ending Khotan's existence as an independent state. The Islamic conquest of Khotan led to alarm in

3320-415: The Khotanese Saka hīnāysa attested in contemporary documents. This, along with the fact that the king's recorded regnal periods were given in Khotanese as kṣuṇa , "implies an established connection between the Iranian inhabitants and the royal power", according to the late Professor of Iranian Studies Ronald E. Emmerick (d. 2001). He contended that Khotanese-Saka-language royal rescripts of Khotan dated to

3403-454: The Kumtag are of a concern for the designers of the Golmud–Dunhuang Railway , which will cross the eastern edge of this desert in the Shashangou area, between Dunhuang and the Altyn-Tagh - Qilian mountain system. There was a concern that the "megadunes" characteristic of this area may shift, burying the railway. However, geological research indicated that the "megadunes" are mostly formed by solid subsoil, rather than just sand. Although there

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3486-482: The Sai (塞, sāi, sək in archaic Chinese) in ancient Chinese records. These records indicate that they originally inhabited the Ili and Chu River valleys of modern Kazakhstan . In the Chinese Book of Han , the area was called the "land of the Sai", i.e. the Saka. A people believed to be Saka has also been found in various locations in the Tarim Basin, for example in the Keriya region at Yumulak Kum (Djoumboulak Koum, Yuansha) around 200 km east of Khotan, with

3569-411: The Tahe oil field. Below the level enriched with gas and oil is a complex Precambrian basement believed to be made up of the remnants of the original Tarim microplate , which accrued to the growing Eurasian continent in Carboniferous time. The snow on K2 , the second-highest mountain in the world, flows into glaciers which move down the valleys to melt. The melted water forms rivers which flow down

3652-430: The Tarim Basin ( Altishahr ), which Qing China unified into Xinjiang province in 1884. At the time of the Qing conquest in 1759, Dzungaria was inhabited by steppe-dwelling, nomadic Mongolic-speaking , Tibetan Buddhist Dzungars , while the Tarim Basin (Altishahr) was inhabited by sedentary, oasis-dwelling, Turkic-speaking Uyghur Muslim farmers. Dzungaria and the Tarim Basin were each governed separately until

3735-436: The Tarim basin, rebelled against the Moghulistan Khanate and broke away. Five years later Sultan Said Khan , a brother of the Khan of Moghulistan in Turfan , conquered the Dughlats but established his own Yarkent Khanate instead. By the early 17th century, the Naqshbandi Sufi Khojas , descendants of Muhammad , had replaced the Chagatayid Khans as rulers of the Tarim Basin. There was a struggle between two Khoja factions:

3818-422: The Tien Shan join the Tarim, the largest being the Aksu . Rivers flowing north from the Kunlun are usually named for the town or oasis they pass through. Most dry up in the desert; only the Hotan River reaches the Tarim in good years. An exception is the Qiemo River which flows northeast into Lop Nor. Ruins in the desert imply that these rivers were once larger. The original caravan route seems to have followed

3901-405: The Yuezhi, albeit under slightly different names. After the Han dynasty, the kingdoms of the Tarim Basin began to have strong cultural influences on China as a conduit between the cultures of India and Central Asia and China. Indian Buddhists had previously travelled to China during the Han dynasty, but the Buddhist monk Kumārajīva from Kucha , who visited China during the Six Dynasties period

3984-498: The campaigns of conquest by Emperor Taizong of Tang (r. 626–649). From the late 8th to 9th centuries, the region changed hands between the Chinese Tang Empire and the rival Tibetan Empire . By the early 11th century the region had fallen to the Muslim Turkic peoples of the Kara-Khanid Khanate , which led to both the Turkification of the region and its conversion from Buddhism to Islam . Suggestive evidence of Khotan's early link to India are minted coins from Khotan dated to

4067-641: The closure of the Palaeo-Asian Ocean. At present, deformation around the margins of the basin is resulting in the microcontinental crust being pushed under Tian Shan to the north, and Kunlun Shan to the south. A thick succession of Paleozoic , Mesozoic and Cenozoic sedimentary rocks occupy the central parts of the basin, locally exceeding thicknesses of 15 km (9 mi). The source rocks of oil and gas tend to be mostly Permian mudstones and, less often, Ordovician strata which experienced an intense and widespread early Hercynian karstification . The effect of this event are e.g. paleokarst reservoirs in

4150-442: The conquest of Khotan by Kashgar by the Karakhanid leader Yusuf Qadir Khan around 1006. Accounts of the Muslim Karakhanid war against the Khotanese Buddhists are given in Taẕkirah of the Four Sacrificed Imams written sometime in the period from 1700 to 1849 which told the story of four imams from Mada'in city (possibly in modern-day Iraq) who traveled to help the Islamic conquest of Khotan, Yarkand, and Kashgar by Yusuf Qadir Khan,

4233-425: The creation of Xinjiang in 1884 . The Chinese called this the Tien Shan Nan Lu or Tien Shan South Road, as opposed to the Bei Lu north of the mountains. Along it runs the modern highway and railroad while the middle Tarim River is about 100 km south. The caravans met in Kashgar before crossing the mountains. Bachu or Miralbachi; Uchturpan north of the main road; Aksu on the large Aksu River ; Kucha

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4316-425: The desert of Lop. The arrangement of the sand here agrees perfectly with the law laid down by Grigory Potanin , that in the basins of Central Asia the sand is heaped up in greater mass on the south, all along the bordering mountain ranges where the floor of the depressions lies at the highest level. The country to the north of the desert ranges is thus summarily described by Sven Hedin : "The first zone of drift sand

4399-467: The desert. 218 runs from Charkilik to Korla along the former course of the Tarim, forming an oval whose other end is Kashgar. The Tarim Desert Highway , a major engineering achievement, crosses the center from Niya to Luntai . The new Highway 217 follows the Khotan River from Khotan to near Aksu . A road follows the Yarkant River from Yarkand to Baqu . East of the Korla-Charkilik road, travel continues to be very difficult. Rivers coming south from

4482-401: The desertification, the town of Dunhuang has placed severe limitations on immigration , and has also placed restrictions on new water-well development or new farm additions. The prevailing winds in this region would appear to blow from the west and northwest during the summer, winter and autumn. Though in spring, when they certainly are more violent, they no doubt come from the northeast, as in

4565-419: The east and Dunhuang's Cave 17, which contained Khotanese literary works, was closed shut possibly after its caretakers heard that Khotan's Buddhist buildings were razed by the Muslims, the Buddhist religion had suddenly ceased to exist in Khotan. The Karakhanid Turkic Muslim writer Mahmud al-Kashgari recorded a short Turkic language poem about the conquest: English translation: We came down on them like

4648-425: The eastern Tarim Basin such as Loulan , the Xiaohe Tomb complex , and Qäwrighul . These mummies have previously been suggested to be of Tocharian origin, but recent evidence suggests that the mummies belonged to a distinct population unrelated to later Indo-European pastoralists, such as Afanasievo. In the Iron Age , the Chawuhu culture (c. 1000–400 BC) flourished in the Yanqi (Karashar) oasis, and also reached

4731-423: The finding of a vast, carbon-rich underground sea beneath the basin. It is speculated that the Tarim Basin may be one of the last places in Asia to have become inhabited: It is surrounded by mountains and irrigation technologies might have been necessary. The Northern Silk Road on one route bypassed the Tarim Basin north of the Tian Shan mountains and traversed it on three oases-dependent routes: one north of

4814-403: The foot of the desert ranges, where it rises into dunes sometimes as much as 250 feet (76 m) in height and climbs the flanks of ranges themselves. Administratively, the desert is located in the Ruoqiang (Qakilik) County of Xinjiang and Aksai Kazakh Autonomous County and Dunhuang City of Gansu , near their border with Qinghai . A map published by the National Geographic Society shows

4897-415: The largest basins in Northwest China. Located in China's Xinjiang region, it is sometimes used synonymously to refer to the southern half of the province, that is, Southern Xinjiang or Nanjiang ( Chinese : 南疆 ; pinyin : Nánjiāng ), as opposed to the northern half of the province known as Dzungaria or Beijiang. Its northern boundary is the Tian Shan mountain range and its southern boundary

4980-490: The last vestiges of the Indo-Greek Kingdom, expanded back into the Tarim Basin in the 1st–2nd centuries CE, where they established a kingdom in Kashgar and competed for control of the area with nomads and Chinese forces. The Yuezhi or Rouzhi ( Chinese : 月氏 ; pinyin : Yuèzhī ; Wade–Giles : Yüeh -chih , [ɥê ʈʂɻ̩́] ) were an ancient people first reported in Chinese histories as nomadic pastoralists living in an arid grassland area in

5063-812: The long run, supplying one-fifth of the country's total oil supply by 2010, with an annual output of 35 million tonnes . On June 10, 2010, Baker Hughes announced an agreement to work with PetroChina Tarim Oilfield Co. to supply oilfield services, including both directional and vertical drilling systems, formation evaluation services, completion systems and artificial lift technology for wells drilled into foothills formations greater than 7,500 meters (24,600 feet) deep with pressures greater than 20,000 psi (1,400 bar) and bottom-hole temperatures of approximately 160 °C (320 °F). Electrical submersible pumping (ESP) systems will be employed to dewater gas and condensate wells. PetroChina will fund any joint development. In 2015, Chinese researchers published

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5146-453: The mountains and into the Tarim Basin, never reaching the sea. Surrounded by desert, some rivers feed the oases where the water is used for irrigation while others flow to salt lakes and marshes. Lop Nur is a marshy , saline depression at the east end of the Tarim Basin. The Tarim River ends in Lop Nur. The Tarim Basin is believed to contain large potential reserves of petroleum and natural gas . Methane comprises over 70 percent of

5229-405: The natural gas reserve, with variable contents of ethane (<1% – c. 18%) and propane (<0.5% – c. 9%). China National Petroleum Corporation 's comprehensive exploration of the Tarim basin between 1989 and 1995 led to the identification of 26 oil- and gas-bearing structures. These occur at deeper depths and in scattered deposits. Beijing aims to develop Xinjiang into China's new energy base for

5312-442: The north side of the basin. Formerly it continued to Loulan , but some time after 330 AD it turned southeast near Korla toward Charkilik , and Loulan was abandoned. The Tarim ended at the now-dry Lop Nur, which occupied a shifting position east of Loulan. Eastward is the fabled Jade Gate which the Chinese considered the gateway to the Western Regions . Beyond that was Dunhuang with its ancient manuscripts and then Anxi at

5395-412: The northern terrace was 113 feet (34 m) high and the southern 853/4 feet....Both terraces belong to the same level, and would appear to correspond to the shore lines of a big bay of the last surviving remnant of the Central Asian Mediterranean. At the point where I crossed it the depression was 6 to 7 miles (11 km), wide, and thus resembled a flat valley or immense river-bed." The moving sands of

5478-437: The oasis city-states of the Tarim Basin. Whereas the Yuezhi continued westward and conquered Daxia around 177–176 BC, the Sai (i.e. Saka), including some allied Tocharian peoples , fled south to the Pamirs before heading back east to settle in Tarim Basin sites like Yanqi (焉耆, Karasahr ) and Qiuci (龜茲, Kucha ). The Saka are recorded as inhabiting Khotan by at least the 3rd century and also settled in nearby Shache (莎車),

5561-417: The precipitation level, its combination with potential evapotranspiration defines a steppe climate. Steppe can be classified by climate: It can also be classified by vegetation type, e.g. shrub-steppe and alpine-steppe . The world's largest steppe region, often referred to as "the Great Steppe ", is found in Eastern Europe and Central Asia , and neighbouring countries stretching from Ukraine in

5644-458: The region to the Chinese. The Han Chinese wrested control of the Tarim Basin from the Xiongnu at the end of the 1st century under the leadership of General Ban Chao (32–102 CE), during the Han-Xiongnu War . The Chinese administered the Tarim Basin as the Protectorate of the Western Regions . The Tarim Basin was later under many foreign rulers, but ruled primarily by Turkic, Han, Tibetan, and Mongolic peoples. The powerful Kushans , who conquered

5727-496: The south and west side of the Traim. They are part of the Taklimakan Desert railway loop, joined together with sections of the Golmud–Korla railway , Hotan–Ruoqiang railway , Kashgar–Hotan railway , and Southern Xinjiang railway . The main road from eastern China reaches Ürümqi and continues as highway 314 along the north side to Kashgar. Highway 315 follows the south side from Kashgar to Charkilik and continues east to Tibet. There are currently four north–south roads across

5810-415: The south side. At the time of the Han dynasty conquest, it shifted to the center (Jade Gate-Loulan-Korla). When the Tarim changed course about 330 AD it shifted north to Hami . A minor route went north of the Tian Shan. When there was war on the Gansu Corridor trade entered the basin near Charkilik from the Qaidam Basin . The original route to India seems to have started near Yarkand and Kargilik, but it

5893-538: The southern and mid regions of New South Wales . This area borders the semi-arid and arid Australian Outback which is found farther inland on the continent. In Europe , some Mediterranean areas have a steppe-like vegetation, such as central Sicily in Italy , southern Portugal , parts of Greece in the southern Athens area, and central-eastern Spain , especially the southeastern coast (around Murcia ), and places cut off from adequate moisture due to rain shadow effects such as Zaragoza . In northern Africa ,

5976-556: The sword to make the population convert to Islam. After being converted to Islam, the descendants of the previously Buddhist Uyghurs in Turfan believed that the "infidel Kalmuks" ( Dzungars ) were the ones who built Buddhist monuments in their area, in opposition to the current academic theory that it was their own ancestral legacy. The eastern regions of the Chagatai Khanate in the early 14th century had been inhabited by

6059-554: The traditional Uyghur name for it was Altishahr ( Uyghur : التى شهر , romanized :  Altä-shähär , Алтә-шәһәр ). It was formerly the area of the Eastern Chagatai Khanate 東察合台汗國, land of the Uyghur people before being conquered by the Dzungars. The population of the Tarim Basin is estimated at approximately 5.5 million. Steppe In physical geography , a steppe ( / s t ɛ p / )

6142-669: The two separate political entities of Dzungaria and the Tarim Basin (Eastern Turkestan). Dzungharia or Ili was called Zhunbu 準部 (Dzungar region) Tianshan Beilu 天山北路 (Northern March), "Xinjiang" 新疆 (New Frontier), or "Kalmykia" (La Kalmouquie in French). It was formerly the area of the Dzungar (or Zunghar) Khanate 準噶爾汗國, the land of the Dzungar people . The Tarim Basin was known as "Tianshan Nanlu 天山南路 (southern March), Huibu 回部 (Muslim region), Huijiang 回疆 (Muslim frontier), Chinese Turkestan , Kashgaria, Little Bukharia, East Turkestan ", and

6225-477: The west end of the Gansu Corridor . Settlements include Kashgar; Yangi Hissar , famous for its knives; Yarkand , once larger than Kashgar; Karghalik (Yecheng), with a route to India; Karakash ; Khotan , the main source of Chinese jade; eastward the land becomes more desolate; Keriya (Yutian); Niya (Minfeng); Qiemo (Cherchen); Charkilik (Ruoqiang). The modern road continues east to Tibet. There

6308-799: The west through Russia , Kazakhstan , Turkmenistan and Uzbekistan to the Altai , Koppet Dag and Tian Shan ranges in China . The Eurasian Steppe is speculated by David W. Anthony to have had a role in the spread of the horse, the wheel and Indo-European languages . In the Eurasian steppe, soils often consist of chernozem . The inner parts of Anatolia in Turkey , Central Anatolia and East Anatolia in particular and also some parts of Southeast Anatolia , as well as much of Armenia and Iran are largely dominated by cold steppe. The Pannonian Plain

6391-794: The western part of the modern Chinese province of Gansu during the 1st millennium BC. After a major defeat by the Xiongnu, in the 2nd century BC, the Yuezhi split into two groups: the Greater Yuezhi ( Dà Yuèzhī 大月氏) and Lesser Yuezhi ( Xiǎo Yuèzhī 小月氏). They introduced the Brahmi script, the Indian Prakrit language for administration, and Buddhism , playing a central role in the Silk Road transmission of Buddhism to Eastern Asia. Three pre-Han texts mention peoples who appear to be

6474-547: Was captured by the Tang in 644 and the kingdom of Kucha was conquered in 649 . The expansion into Central Asia continued under Taizong's successor, Emperor Gaozong , who dispatched an army in 657 led by Su Dingfang against the Western Turk qaghan Ashina Helu . Ashina was defeated and the khaganate was absorbed into the Tang empire. The Tarim Basin was administered through the Anxi Protectorate and

6557-607: Was once an important kingdom; Luntai ; Korla , now a large town; Karashar near Bosten Lake ; Turpan north of the Turpan Depression and south of the Bogda Shan ; Hami ; then southeast to Anxi and the Gansu Corridor . Most of the basin is occupied by the Taklamakan Desert which is too dry for permanent habitation. The Yarkand , Kashgar and Aksu Rivers join to form the Tarim River which runs along

6640-717: Was paid by the Chagatayids to the eastern regions. As a result, the eastern tribes there were virtually independent. The most powerful of the tribes, the Dughlats , controlled extensive territories in Moghulistan and the western Tarim Basin. In 1347 the Dughlats decided to appoint a khan of their own, and raised the Chagatayid Tughlugh Timur to the throne. In 1509 the Dughlats, vassal rulers of

6723-596: Was particularly renowned. Music and dances from Kucha were also popular in the Sui and Tang periods. During the Tang dynasty , a series of military expeditions were conducted against the oasis states of the Tarim Basin, then vassals of the Western Turkic Khaganate . The campaigns against the oasis states began under Emperor Taizong with the annexation of Gaochang in 640. The nearby kingdom of Karasahr

6806-758: Was slain by the Buddhists during the war. Buddhism lost territory to the Turkic Karakhanid Satok Bughra Khan during the Karakhanid reign around Kashgar. The Tarim Basin became Islamicized over the next few centuries. In the tenth century, the Buddhist Iranic Saka Kingdom of Khotan was the only city-state that was not conquered yet by the Turkic Uyghur (Buddhist) and the Turkic Karakhanid (Muslim) states. The Buddhist entitites of Dunhuang and Khotan had

6889-654: Was the Iron Gate Pass and now the highway and railway north to Ürümqi. From Turfan the easy Dabancheng pass leads to Ürümqi. The route from Charkilik to the Qaidam Basin was of some importance when Tibet was an empire. North of the mountains is Dzungaria with its central Gurbantünggüt Desert , Ürümqi, and the Karamay oil fields. The Kulja territory is the upper basin of the Ili River and opens out onto

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