检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]广西师范学院
出 处:《人文地理》1994年第4期46-50,共5页Human Geography
摘 要:左江流域包括扶绥、崇左、宁明、龙州、凭祥、大新六县市,位于南宁地区的西南部。由于长期以来不合理的开发利用,致使水土流失现象十分严重,不但有面蚀、沟蚀,有些地方甚至发展成崩岗.该区域总面积15092.39Km2,水上流失面积525.81Km2,本文在分析水土流失现状及成因的基础上,提出相应的水土保持措施。Zuojiang basin locates in the Southwest of Nanning region, including six counties and cities, (Fusui,Chongzuo, Ningming, Longzhou, Pinxiang, Daxin). A long time irrational land use has resulted in serious water and soil loss with surface erosion, gully erosion and gravity erosion. The basin has a land area of 15,092. 39 square kilometers and the area of water and soil loss is 525. 81 square kilometers. On the basis of the analysis of present situation and forming rules, this paper suggests the relevant measures for controlling water and soil loss in this area.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15