Study On Eco-environmental Conservation Division And Allocation Pattern In Tarim River Watershed

The paper is one proportion of the project which studys on eco-environmental conservation allocation pattern and water consumption in northwest of China. The project is the second part of the consultation project which studys on water resources allocation, eco-environmental conservation and sustainable development strategy in northwest of China. The main research contents include three aspects. Eco-environmental conservation division in Tarim River Watershed is the first one. The second aspect is eco-environmental conservation pattern research. The third aspect is study on water consumption for eco-environmental conservation in Tarim River Watershed.1.Eco-environmental conservation division in Tarim River Watershed According to collection of all kinds of division methods and eco-environmental conservation index data in Tarim River Watershed, the paper use qualitative division method. Referring to the existing divisin outcomings, the paper divides Tarim River Watershed into three eco-environmental conservation regions and nine eco-environmental conservation sub-regions. They are as follows:â…  the ecological agriculture conservation region in Tarim River Watershedâ…  1 AKsu River region â…  2 Yarkant River regionâ…  3 the upper reaches of the mainstream region in Tarim Riverâ…¡ the oasis conservation and desertification combating region in Tarim RiverWatershedâ…¡1 kaidu-kongque River region â…¡2 Hotan River regionâ…¡3 the middle reaches of the mainstream region in Tarim River â…¢ ecology conservation region in Tarim River Watershedâ…¢1 the lower reaches of the mainstream region in Tarim River â…¢2 the desertification region in Tarim Basin â…¢3 the desertification region to the east of Tarim Basin2.Eco-environmental conservation pattern research in Tarim River Watershed Based on collecting conservation experiences of Tarim River Watershed,, The paper put forwards conservation pattern of each eco-environmental conservation region. The pattern includes conservation aim, land use structure and conservation measures.3.Research on water consumption for eco-environmental conservation of Tarim River WatershedBased on vegetation water consumption and quota Estimation, this paper calculates water amount of four source streams of Tarim River Watershed. The amount of mainstream of Tarim River Watershed is approximately estimated by using phreatic evaporation. The total amount of Tarim River Watershed is 8000.7 million m3.