Primary Study on Regulation of Environmental Flow in the Yellow River Estuary
The Yellow River Delta wetland is the youngest, widest, intactest and biggest wetland in China temperate zone. In 1992, the National Nature Reserve was set up. In 1980s and 1990s, the lower Yellow River dried up frequently and the Yellow River estuary ecosystem, whose main water source is Yellow River water, was destroyed seriously. The wetland area shrank and the species and amount of the biology were reduced obviously. Since 1999, after implementation of integrated water regulation of the Yellow River, fresh water resources flow into the estuary area constantly, and it has been no drying up for continuous 7 years, as a result, the fresh water level is rising; the water amount flowing into the sea is increased in planning from March to June, when the biology growth and propagation are in bloom. In addition, continuous 5 years regulation of water and sediment since 2002, large amount of fresh water flowed into the dried wetland nearby the estuary, and a large amount of sediment were transported into the sea, as a result, the situation of sea water intrusion and land erosion are contained effectively and the wetland area was restored gradually. However, it still exist some problems in water regulation such as water for ecological use is occupied by productive use. In the future, the regulation of the environmental flow of the Yellow River should be intensified by carrying out the Byelaw of Yellow River Water Regulation.
the Yellow River Delta environmental flow regulation
Wang Jianzhong Wang Daoxi Ke Sujuan Xing Hua
Department of Water Resources Management and Regulation, YRCC, Zhengzhou, 450004, China Institute of the Yellow River Estuary Research, Dongying, 257091, China
国际会议
山东东营
英文
3-8
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）