| 沙尘暴多发区土地风蚀荒漠化诊断评价方法 |
| |
| 引用本文： | 林进,孙司衡,王君厚.沙尘暴多发区土地风蚀荒漠化诊断评价方法[J].中国沙漠,1999,19(4):375-377. |
| |
| 作者姓名： | 林进 孙司衡 王君厚 |
| |
| 作者单位： | 国家林业局调查规划院, 北京 100714 |
| |
| 基金项目： | 国防科工委科技攻关计划 |
| |
| 摘 要： | 利用卫星遥感技术,结合地面观测,确定植被盖度、裸地占地率和土壤质地3项因子为沙尘暴多发区风蚀荒漠化土地现状程度评价指标,并给出程度评价模型;在此基础上,考虑到非荒漠化土地及各程度荒漠化土地在面积上的组成比例,给出区域性土地风蚀荒漠化总体水平评价模型;并通过对内蒙古赤峰市及阿拉善盟两地区的土地风蚀荒漠化总体水平评价验证,证明此模型可作为沙尘暴多发区任意大小区域土地风蚀荒漠化水平评价方法。
|
| 关 键 词： | 沙尘暴 土地风蚀荒漠化 评价方法 |
| 收稿时间： | 1999-04-27 |
| 修稿时间： | 1999-05-25 |
Evaluation Methodology of Land Desertification Level Caused by Wind erosion in the Sand-dust Storm Frequently-occurring Area |
| |
| LIN Jin,SUN Si-heng,WANG Jun-hou.Evaluation Methodology of Land Desertification Level Caused by Wind erosion in the Sand-dust Storm Frequently-occurring Area[J].Journal of Desert Research,1999,19(4):375-377. |
| |
| Authors: | LIN Jin SUN Si-heng WANG Jun-hou |
| |
| Institution: | Academy of Forest Inventory and Planning, The National Bureau of Forestry, Beijing 100714, China |
| |
| Abstract: | In this paper,the coverage
of vegetation,the occupation ratio of bare land and the soil texture are determined as the
evaluation indicators of the degree of wind-eroded desertified land in frequently-occuring
area of sand-dust storm. Based on these 3 indicators a mathematical model to determine the
degree of wind-eroded desertified land was set up. Meanwhile,considering the ratio of
non-desertified land area and different degree desertified land area, a regional
evaluation model of land desertification level was given out. This evaluation system is
testified to be applicable by using remote sensing technique and field investigation in
the frequently-occurring area of sand-dust storm. |
| |
| Keywords: | sand dust storm wind erosion desertification evaluation methodology |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国沙漠》浏览原始摘要信息 |
| 点击此处可从《中国沙漠》下载免费的PDF全文 |
|
