Natural Eecological Water Demand Calculating of Lower Reaches Area of the Heihe River at Present Year
The ecology and environment at the lower reaches area of the Heihe River is on the trend of deterioration because of less water entering the downstream channel which is caused by increasing water consumption in the upper and middle reaches. In order to restore and improve ecology at the lower reaches area of the Heihe River, the ecological water demand must be guaranteed by all means. The natural vegetation area at the lower reaches area of the Heihe River was interpreted by remote sensing image of 1998, and quota of natural ecological water demand at the lower reaches area of the Heihe River is analyzed, thus the natural ecological water demand at the lower reaches area of the Heihe River is calculated on base of the selected natural ecological water demand methods. Then, natural ecological water demand at the lower reaches area of the Heihe River at present year is calculated with groundwater storage volume change method, Aверьянов, Г. B method, and measured actual water volume method etc. In comparison, the natural ecological water demand at the lower reaches area of the Heihe River at present year is 0.391～0.405 billion m3.
natural ecological water demand the lower reaches area of the Heihe River natural vegetation remote sensing
Fu Xinfeng He Hongmou Jiang Xiaohui Luo Yuli Jiang Bingzhou
Yellow River Institute of Hydraulic Research of Yellow River Conservancy Commission, MWR, Zhengzhou 450003, China
国际会议
山东东营
英文
225-233
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）