城市型县级水土流失重点防治区复核划分研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目“人类活动干扰下陇中黄土高原生态系统服务功能相互关系研究”(41571051)


Rechecked Division of Urban-type Soil Erosion at County-level
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    [目的]对城市型县级水土流失重点防治区复核划分进行研究,为县级水土流失防治工作的深入开展提供支持。[方法]采用eCognition,ArcGIS提取土地利用现状、水土流失强度、林草覆盖率等关键因子,运用定性和定量分析、自上而下和自下而上结合的方法,对兰州市西固区"两区(重点预防区、重点治理区)"划分进行研究。[结果]城市型"两区"划分具有辖区面积小,人口多,经济发达,一产比重小,土地利用碎块化,水土流失严重和潜在危害大等特性,确定了"两区"划分的定性和定量指标,将西固区划分为2个重点预防区和2个重点治理区。[结论]在城市周边丘陵区加大水土流失防治力度,遏制其对下游城区的危害;在深山降雨较好地区,进行封禁治理和生态植被自然修复;发展设施农业,增加农民收入。

    Abstract:

    [Objective] This study conducted rechecked division of key preventing and controlling area of urban-type soil erosion at county-level, to provide support for deep development of the prevent and control methods of soil erosion at county-level.[Methods] According to the key factors such as land use status, soil erosion intensity, vegetation coverage extracted from ArcGIS and eCognition, we explored the soil erosion division with regard to key prevention area and key control area in Xigu District, Lanzhou by combining qualitative and quantitative methods, and top-down and bottom-top methods.[Results] The district has characteristics of small jurisdiction, large population, developed economy, small proportion of the primary industry, land use fragments, serious soil erosion, potential erosive harm and others. We determined the qualitative and quantitative index of the above two areas:two key prevention areas and two key control areas.[Conclusion] ① Our main efforts of soil and water prevention should be pay to the upstream hilly regions to prevent downstream cities from being suffered erosion. ② Forest close and natural revegetation should be taken into effect in the mountains that have abundant rainfall. ③ Farm mechanization should be developed to increase the income of farmers.

    参考文献
    相似文献
    引证文献
引用本文

胡彦婷,王守俊,张富,严能,戚继阳,高哲,赵秀兰.城市型县级水土流失重点防治区复核划分研究[J].水土保持通报,2017,37(6):291-298

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2017-04-05
  • 最后修改日期:2017-06-08
  • 录用日期:
  • 在线发布日期: 2018-01-19
  • 出版日期: