Study On Assessment And Database Of Ecological Environmental Quantity In The Headstream Of Yellow River And Yangtze River And Lantsang River

Ecological environment and natural resources are material basis of human exist and development,whereas stability and solidarity are safeguard of socioeconomic sustainable development. The Qinghai-Tibet Plateau is the seminary of Changjiang River, Yellow River, Lantsang-Mekong river,Ganges, indus River and so on in Eurasia.and it is one of the territory with most diversified biodiversity ,as the hinterland and the principal part of the Qinghai-Tibet Plateau,the headstream of Yellow River and Yangtze River and Lantsang River has has very important ecological status.In recent years,both affected by global warming and human acuteness interfere,the ecological environment of the headstream of Yellow River and Yangtze River and Lantsang River has been severe damaged and got exacerbation symptom。wherefor,it be full pressing mission to denial ecological environment exacerbation and restore,reconstruct the ecological environment of headstream of Yellow River and Yangtze River and Lantsang River. But it was unprecedented tableland zoology engineering, and scientific research activities ether on the headstream of Yellow River and Yangtze River and Lantsang River or on Qinghai-Tibet Plateau can be counted on one's fingers, and even the limited research materials can't be fullly used becouse of straggle, so scarcity of valuable data and inefficacy of ladder of management will be the "bottleneck" for the study and restore of the ecological environment in the headstream of Yellow River and Yangtze River and Lantsang River. Wherefore,the study on Assessment and Database of Ecological Environmental Quantity in the headstream of Yellow River and Yangtze River and Lantsang River were carried out,and the mostly research contents in this thesis are as follows:1. Research background and general situation of ecological environmental study in the headstream of Yellow River and Yangtze River and Lantsang River.It was ecological environmental exacerbation that arouse the environmental considerations of people, and the developed country have promised to enact laws that would enhance the environmental protection. Our country came into this field late,and the scientific correlation studies on the environmental quality still are rarity in the headstream of Yellow...