%0 Journal Article
%T Research into the effects of the middle route of China'''' south-to-north water transfer project on water bloom in the middle-down stream of Hanjiang Riverand the countermeasures Part Ⅰ:An analysis of the key factors generating water bloom in Hanjiang River<br>南水北调中线工程对汉江中下游水华的影响及对策研究(Ⅰ)--汉江水华发生的关键因子分析
%A XIE Ping
%A XIA Jun
%A DOU Ming
%A ZHANG Wan-shun
%A <br>谢平
%A 夏军
%A 窦明
%A 张万顺
%J 自然资源学报
%D 2004
%I 
%X In order to evaluate the effects of the middle route of China's south-to-north water transfer project(MR-SNWTP)on water bloom in the middle-down stream of Hanjiang River, ba- sed on monitoring data,collected information and investigation work,the reasons and key factors for Hanjiang's water bloom are analyzed by applying hydrodynamic model and dynamic model of eutrophication.There are three major reasons accountable for the generation of Hanjiang water bloom.The first and main one is that there are more and more polluted drainage from the middle stream to the down stream of Hanjiang River and excessive nutrition material needed by algae such as nitrogen,phosphorus,etc.The second one is that the water velocity in Hanjiang slows down when Hanjiang River has low water level and Yangtze River has high water level,and Hanjiang River has the flow characteristics like lakes.The third one is higher temperature in spring.Under the nutrition condition needed for algae growth,the discharge and water velocity are the key factors to restrict water bloom in Hanjiang River.The effects of MR-SNWTP on the water bloom in the middle-down stream of Hanjiang River will embody mainly on hydrological factors.
%K the middle route of China's south-to-north water transfer project
%K Hanjiang River
%K water bloom
%K countermeasure
%K key factor<br>南水北调中线工程
%K 汉江
%K 水华
%K 对策
%K 关键因子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=4DCB9A3AF3395AF0101DE5302EF3C300&aid=C280426576C3CA7775492F13283DF9BF&yid=D0E58B75BFD8E51C&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=6B3068A7C27BD349&eid=F27A401E323B6FAD&journal_id=1000-3037&journal_name=自然资源学报&referenced_num=14&reference_num=5