长江上游重点水土流失区陡坡耕地的出路
文献类型：期刊论文
| 作者 | 张信宝 ; 付仕祥
|
| 刊名 | 中国水土保持
 |
| 出版日期 | 1999 |
| 期号 | 9页码:38-39 |
| 关键词 | 陡坡耕地 改造 耕地 长江上游 水土流失 防治 |
| ISSN号 | 1000-0941 |
| 其他题名 | The Way Out for Steep Land in Focal Areas With Severe Soil and Water Loss in the Upper Yangtze River |
| 通讯作者 | 张信宝 |
| 合作状况 | 国内 |
| 中文摘要 | 长江上游重点水土流失区坡耕地面积５４９．１万ｈｍ＾２，占耕地面积的６２．８％，其中〉２５°的陡坡耕地约占坡耕地面积的１／５。坡耕地全部退耕还林影响群众生活而且可能会加剧冲沟侵蚀，宁南县将一些２５－３０°的陡坡地集中连片改造为梯地，并配套有较完整的坡面水系工程不但有铲防治了水土流失，而且作物产量产值大幅芳提高。因此，长江上游重点水土流失区〉２５°的陡坡耕地退耕还林工作不能一刀切。 |
| 英文摘要 | There are 5 491 000 hm2 of slope land in severe soil and water loss region in the upper Yangtze River that accounts for 62.8% of total farm land, in which one fifth of them is steep slope land with slope grade over 25 degree. If all the slope land is forested from cult ivation, the local people`s lifewill be inf luenced and furthermore the gully erosion may be intensified. Some of the steep slope land with grade of 25 to 30 degree have been constructed to be terrace in large scale and equipped with perfect slope water system projects, which not only controls soil and water loss but also significantly increases grain production and output. Therefore, we should not take only way to forest the cultivated land on steep slope of larger than 25 degree in the severe soil and water loss region in the upper Yangtze River. In the areas of more population density and less land as well as with favorite heat and light conditions, the steep slope land with grade of 25 to 30 degree can be improved into terrace in large scale and completed with slope water system in order to achieve good ecological, social and economic effects. |
| 分类号 | S157 |
| 语种 | 中文 |
| 公开日期 | 2010-08-09 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/1312]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.中国科学院水利部成都山地灾害与环境研究所 2.宁南县水土保持办公室 |
| 推荐引用方式 GB/T 7714 | 张信宝,付仕祥. 长江上游重点水土流失区陡坡耕地的出路[J]. 中国水土保持,1999(9):38-39. |
| APA | 张信宝,&付仕祥.(1999).长江上游重点水土流失区陡坡耕地的出路.中国水土保持(9),38-39. |
| MLA | 张信宝,et al."长江上游重点水土流失区陡坡耕地的出路".中国水土保持 .9(1999):38-39. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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