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【答案】应助回帖
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水利人和天使(阿飞1990乖乖代发): 金币+30, 感谢虫友热心应助! 2014-04-22 12:04:43
水利人和天使(阿飞1990乖乖代发): 金币+5, 奖励外语EPI一枚！ 2014-04-22 12:05:30
阿飞1990乖乖: 外语EPI+1 2014-04-22 12:07:25
In recent years,with increasingly serious of every king of ecological problem and contamination,study of rivers protection has gradually became a hot discussion.On the basis of detailed description and discussion of the definition of riparian zone，structural function，management and protection，study method etc， the article points out that the riparian zone is an important link in river ecosystem and ecological barrier of amphibious staggered area， and plays a very important function and role. The determination of the appropriate width of the riparian zone is the key factor to exert the riparian zone beneficial function and protect river ecosystem.This text mainly studied several aspects as following：the first one is putting forward the appropriate width optimization model of riparian zone on the basis of previous studies；the second is to expound the development and application of GIS and points out that it is an effective measure to ensure the width of river bank with the coupling of GIS spatial analysis and the appropriate width optimization model of riparian zone；the third is determining the anxi river riparian zone of the different width requirements based on GIS spatial analysis function，taking anxi river in Yunhe county as research object.Through the research,we have obtained the following main results：
（1）on the basis of previous studies,combined with the limit conditions of the zone width，the text put forward multi-objective optimization model of
appropriate width of the riparian zone.
（2）Taking anxi river in Yunhe county as research object，the text gets the different width requirements of anxi river bank through the coupling between the GIS spatial analysis and optimization model.
（3）Compared with the status contrast analysis，the riparian zone， which plans to construct nowadays，can not meet the requirements of appropriate width，it should increase the width of the riparian zone on the foundation of
the original riparian zone. |
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