%0 Journal Article
%T Study of the basic environmental water requirement of the rivers in Huang-Huai-Hai plain<br>黄淮海平原河道基本环境需水研究
%A WANG Xi qin
%A LIU Chang ming
%A ZHANG Yuan
%A <br>王西琴
%A 刘昌明
%A 张远
%J 地理研究
%D 2003
%I 
%X In allusion to the most outstanding pollution problem of water resources in northern China, one calculating method of basic environmental water requirement of the rivers which can guarantee the river function of depuration and dilution is proposed, namely, the monthly (annual) guaranteed frequency method Under the precondition of different monthly (annual) guaranteed frequencies, this method takes the percentage of different natural annual mean discharge as the grade of environmental water requirement of the rivers with the help of series of hydrological statistical data, and the monthly (annual) basic environmental water requirement of the rivers is calculated individually under different guaranteed frequencies and different grades As a case the Huang Huai Hai plain of North China is analyzed Firstly, the main problems existing in the course of water resources utilization and water environment of research area are analyzed, and the main function of river system is confirmed Secondly, the current water utilization of rivers is evaluated with the criterion of Tennant method, and the results indicate that the average water consumption of the rivers in Huang Huai Hai plain in 1997 is shortage, and except that basin slice of Huaihe River belongs to "extremely good grade", the others all fall into the category of "worst" grade or "extremely bad"grade Thirdly, the basic environmental water requirement of the rivers in Huang Huai Hai plain was calculated using the method put forward in this paper, and the results showed that the minimum environmental water requirement of the rivers in Huang Huai Hai plain is 21 76 billion m3 , accounting for 15% of normal annual runoff In which, 3 09 billion m3 are for Haihe River basin, 5 2 billion m3 for the downstream of the Yellow River and 13 47 billion m3 for Huaihe River basin The results are verified through Tennant method, which proved that the calculation result is reliable The countermeasures and suggestions to meet the need of basic environmental water requirement of the rivers in research area are proposed finally The research of this article not only enriches the environmental water requirement theory, but also set up good foundation for further study of ecological (environmental) water requirement, and can offer effective basis for water resources planning and water environmental conservation for the research area at the same time
%K Huang
%K Huai
%K Hai plain
%K river course
%K ecological water requirement
%K environmental water requirement<br>黄淮海平原
%K 河道
%K 生态需水
%K 环境需水
%K 水资源
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=C0C75E88BA2EE501C8298896F64A711F&aid=30C50E31FC72B3B1&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=954CE65414DD94CA&eid=5BC9492E1D772407&journal_id=1000-0585&journal_name=地理研究&referenced_num=27&reference_num=22