China's Geography : its Mountains, Basins, Rivers and Plains
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China is a very diverse country with many distinct geographical regions. It has deserts, high mountains, grasslands, tropical forests and almost every other geographical feature that you can think of.
The general rule is that the terrain falls in steps from the high Tibetan plateau in the south west to the flat North Coastal plain in the north east. Three great rivers run vaguely west to east to divide the nation into three east-west zones, the Huang He (Yellow River); Chang Jiang (Yangzi River) and Yu Jiang (Pearl River). North-eastern China is dominated by flat plains and coastlines while Southern China is mountainous with a rocky coastline. The usual line taken to divide Northern from southern China is the course of the Huai River which runs through Henan and Anhui. The lack of rain in western China is one of the most important features of China's climate (see separate climate section).
This high plateau covers Tibet; Qinghai; southern Xinjiang and western Sichuan. It has an average altitude of 14,764 feet [4,500 meters] making it the world's highest and largest plateau. The plateau has permanent glaciers providing source water for East Asia's major rivers: Yellow; Yangzi; Mekong; Brahmaputra; Salween; Indus; Ganges and Tarim. There are many brackish lakes, the largest of which is Qinghai Lake. Monsoons over India bring heavy rain to the extreme southern fringe of Tibet, elsewhere it is very dry. The Yarlung Zangbo ➚ Valley supports some growing of barley but elsewhere the land provides poor pasture for yaks.
Yunnan - Guizhou Plateau
The altitude of this region falls from the Tibetan plateau in the west to about 1,640 feet [500 meters] in the east. It is scoured by very deep valleys running north to south making east-west travel almost impossible. The climate is wet and humid as tropical air from the south is funneled up the valleys making it suitable for intensive agriculture in the valley bottoms. The weathering of limestone has generated spectacular karst scenery.
Inner Mongolian Plateau (Gobi desert)
Stretching across the north of China the Mongolian plateau is broad and flat with an average altitude of 3,281 feet [1,000 meters]. Inner Mongolia covers most of the area extending into northern Gansu; Ningxia and western Manchuria (Liaoning; Jilin and Heilongjiang). There is no geographical feature forming China's northern border, the plateau stretches on to cover Mongolia as well. Winters are cold and long with low rainfall. Underground water supplies support limited agriculture. Pasture is the main resource to support the herds of grazing animals. The climate is drier in the west and wetter in the east. The Gobi sand desert covers much of the core of this region. Taken all together deserts represent about 20% of China's land area.
Famous for giving the Yellow River its name, the yellow loess plateau stretches south of the Gobi Desert covering Shanxi and parts of Ningxia; Gansu and Shaanxi. Loess (fine calcareous sand and silt) forms in places a 197 feet [60 meters] thick layer of friable yellow earth with an average altitude of 3,281 feet [1,000 meters]. The soil retains water well, and that is the reason that this dry region can still produce high crop yields. Over-cultivation of the land over the centuries has removed the important vegetation that bound the soil together; and now vegetation is sparse. Trees find it hard to become established in the fine, dry earth. Rainfall is infrequent but heavy, and these deluges move vast amounts of material causing flash flooding. Terracing of the hills has greatly increased the area available for cultivation. Traditionally houses were made by excavating caves into loess cliffs (most famously at Yan'an), the caves are cool in summer and warm in winter.
The highest mountains in the world are on the southern edge of the Tibetan plateau. Mount Everest and other high peaks form the most secure of all land borders. Himalaya means ‘Home of snow’ ➚ in Tibetan. Nine of the top 14 highest mountains in the world are in this range. The southern slopes receive huge amounts of rainfall as warm, moist monsoon air hits the mountain barrier.
These mountains form the far north-western border of China with Mongolia and Russia; they rise to 9,843 feet [3,000 meters].
The Tianshan range that rise to 16,404 feet [5,000 meters] stretch from Kyrgyzstan into China to form a divide between the Tarim depression to the south and the Junggar basin to the north. The ancient Silk Route into China passed close to the mountains, with alternative ways to the north (via Alma Ata) or south (via Kashgar) to avoid the high peaks. The influence of Arctic air over Russia brings rain to the north of the mountains, producing good pasture land.
Forming the northern edge of the Tibetan Plateau and stretching into western Sichuan, the Kunlun Mountains define the border of Tibet. At about 16,404 feet [5,000 meters] with peaks up to 22,966 feet [7,000 meters] the Kunluns are a little known but impressive range of mountains. The precious mineral jade has been mined here for thousands of years.
The Shandong or Jiaodong peninsula is like an island set in the North China plain. Historically the high mountains have made internal settlement difficult so many towns spread along the rocky coastline with transport by boat. The surrounding North China Sea gives it a moist maritime climate, at least near the coast. On the western side the mountains fall away to a flat plain. The Yellow River has in historical times flowed south of the western edge cutting it off from the rest of China.
The Karakorum Pass is one of the most important mountain passes into western China. The mountains form the border with Pakistan; Afghanistan; India and Tajikistan. The second highest mountain in the world, K2 ➚, is located in this range.
The Qinling mountains form the division between the Yellow and Yangzi River basins. They jut out east from the Tibetan plateau into the North China plain forming the northern edge of the Sichuan basin. Rising to 9,843 feet [3,000 meters] they make an important historical and climatic dividing line in China between ‘north’ and ‘south’. They prevent moist summer air reaching further north and in winter, cold air reaching central China.
South of the Nanling mountains is the basin of the Pearl River draining south into Guangdong, to the north the Yangzi river drains east towards Nanjing. Relatively low at 3,281 feet [1,000 meters] the mountains are fairly rugged with deep valleys. They form a climatic division between the tropical high rainfall of the south and the drier cooler part of central China.
Lying on the Korean-China border the high, snow capped mountains of Changbai separate China from North Korea.
Separating Siberia from the flat Manchurian plain these mountains enhance the rainfall that falls over north-eastern China. They are split into the ‘Greater Khingan’ running southwest to northeast and the ‘Little Khingan’ running northwest to southeast forming the northeastern border with Russia. They are densely wooded with conifers, providing a great deal of timber for China.
Separating the Tibetan Plateau and the Yunnan-Guizhou Plateau is a transitional zone of high mountains with deep valleys running north-south. ‘Hengduan’ means ‘cut across’ in Chinese. Many of the mountains are over 19,685 feet [6,000 meters] high.
Wuyi Shan Mountains
The Wuyi Shan form a continuation of the Nanling mountains in an arc along the southeastern coast which isolate Fujian from the rest of China. The Wuyishan mountains are at the heart of this rugged barrier. Travel to Fujian was historically by boat rather than crossing these high mountains.
Surrounded by the Khingan mountains the north-eastern alluvial plain of Manchuria is an important agricultural zone. With very cold winters in the north the growing season is limited in length. It is geologically a sedimentary basin. Wheat; soybean; sorghum; sugar beet and flax are the main crops. The lower stretches of the ‘Liao He’ form marshy ground in Liaoning province.
North China Plain
The vast bulk of the Chinese population lives on the vast North China Plain stretching from the north at Beijing to the south at Hangzhou, Zhejiang and from west at Yichang, Hubei to the Eastern sea. The Yangzi and Yellow rivers compete to provide the rich alluvial soil needed to support the high agricultural output. Prone to catastrophic flooding and dramatic changes of river course, life on the plain has at times been perilous. The Three Gorges Dam and the canalization of the Yellow River have much reduced the risk in recent years. Much rice is grown, particularly in the south of the plain.
The arid Tarim Basin holds at its heart the scorching sand desert of the Taklamakan ➚ (literally translated as ‘go in, not come out’). The average elevation is a huge step down from the Tibetan Plateau at about 3,281 feet [1,000 meters]. On the northern edge runs the Tarim River (1,305 miles [2,100 kms] long) but it dries up before it can leave this arid area. It is cold in winter and scorching hot in summer. At the north-eastern edge is the deep depression of Turpan. Here the land falls to 833 feet [254 meters] below sea level - the second lowest in the world after the Dead Sea ➚ and here the summer heat is trapped (the hottest place in China at 49 ° C [121 ° F]).
The Tianshan mountains separate the Tarim basin from its northern neighbor the Junggar Basin. From the north western direction a little more rainfall is received than the Tarim so it is possible to cultivate more crops in a few pockets, but it is mainly desert.
Nestled by mountains on three sides the Sichuan or ‘Red basin’ receives a high rainfall from southerly, warm, moist winds. The average elevation of the Sichuan Basin is quite high at 1,969 feet [600 meters]. Winter frosts are extremely rare. It is named the ‘Red basin’ after the iron rich color of the soil. The rich soil and favorable climate produce high yields of many crops.
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