新疆土地荒漠化及其防治对策

1　荒漠化土地分布现状1.1　分　布北倚阿尔泰山南麓,南亘昆仑山北麓,东至甘、新和中蒙边界,西达哈萨克斯坦荒漠。新疆荒漠化土地地理垂直分布相差悬殊,准噶尔盆地海拔179～1000ｍ,塔里木盆地海拔780～1500ｍ,昆仑山、阿尔金山、天山南坡海拔1500～3100ｍ,阿尔金山库木库里盆地海拔3900～5000ｍ,而吐鲁番盆地为-154ｍ。在昆仑山和阿尔金山北坡、天山南北坡、阿尔泰山南坡的山前洪积平原上分布着大面积卵砾粗岩片碎石戈壁。在罗布泊、乌尔禾谷地、吐鲁番盆地、英吉沙、库车、莎车等县的洪积细土平原和湖积平原高台地上,分布着风蚀残丘(雅丹地…

Land Desertification and Its Control Measures in Xinjiang

Desertification indicates that the lands in arid,semi-arid and semi-humid arid are degenerated caused by climatic changes and mankind actvities etc.It is well known that the area of desertified lands in Xinjiang is the biggest,the most extensiv in distribution and seriously harmfull in China.There 80 counties and cities,nearly a half of the lands,about 10 million people,and more then 10 million mu (66700ha) farmlands in the region are being harmed by the desertification.Nature and human factors have aggravated the processes of desertification.The general development trend of desertification in Xinjiang is"extending entirely,contrary changing partially".In order to control the notable desertification,the result and causes,environment types,development trend,and classification of the land desertification in Xinjiang are discussed and the primary control measures of the desertification are put forward in the paper.