检索结果-南通市图书馆

Effects of sustainable land management interventions on selected soil properties in Geda watershed,central highlands of Ethiopia

引用

Ecological Processes 2020年第1期9卷 161-171页

作者： Hailu Terefe Mekuria Argaw Lulseged Tamene Kindu Mekonnen john recha Dawit Solomon Center for Environmental Science College of Natural ScienceAddis Ababa UniversityP.O.Box 1176Addis AbabaEthiopia International Center for Tropical Agriculture(CIAT) P.O.Box 5689Addis AbabaEthiopia International Livestock Research Institute(ILRI) P.O.Box 5689Addis AbabaEthiopia International Livestock Research Institute(ILRI) P.O.Box 30709Nairobi 00100Kenya

Background:Land degradation through soil erosion by water is severe in the highlands of *** order to curb this problem,the government initiated sustainable land management interventions in different parts of the country since 2008,and in Geda watershed since ***,the impacts of the interventions on soil properties were not assessed so ***,this study investigated the impacts of sustainable land management interventions on selected soil properties in Geda *** samples were collected from treated and untreated subwatersheds at the upper and lower landscape positions,from cropland and grazing lands at two soil depths(0-15 cm and 15-30 cm).Selected soil physicochemical properties were assessed with respect to landscape position,land-use type,and soil depth in both treated and untreated ***:Generally,most of the soil physicochemical properties differed greatly across sub-watersheds,land-use types,and soil ***,electrical conductivity,total N,available P,exchangeable K,and organic carbon were higher in the treated sub-watershed,whereas sand,silt,bulk density,and pH were higher in the untreated *** higher sand,silt,and bulk density could be attributed to erosion,while the higher pH could be due to the higher exchangeable Na in the untreated *** of the selected soil chemical properties were not affected by landscape position,but land-use type affected available P and organic carbon with higher mean values at croplands than at grazing lands,which could be ascribed to the conservation structure and tillage of the soils in that conservation structures trap and accumulate transported organic materials from the upper slope,while tillage facilitates aeration and decomposition ***:Sustainable land management interventions improved soil physicochemical properties and brought a positive restoration of the soil *** the soil conservation measures and enhancing communi

关键词： Crop–livestock system Land degradation Land-use type Sub-watershed Soil depth

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：