| 基于GIS的流域土壤侵蚀量估算指标模型方法——以嘉陵江上游西汉水流域为例 |
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| 引用本文： | 黄诗峰,徐美,等.基于GIS的流域土壤侵蚀量估算指标模型方法——以嘉陵江上游西汉水流域为例[J].水土保持学报,2001,15(2):105-107,116. |
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| 作者姓名： | 黄诗峰 徐美 |
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| 作者单位： | 1. 水利部遥感技术应用中心,
2. 中国水利水电科学研究院, |
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| 基金项目： | “九五”三峡工程泥沙问题研究项目!(5 -4 -1-9)，国家自然科学基金项目!(5 0 0 996 2 0 ) |
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| 摘 要： | 在分析土壤侵蚀形成的各主要影响因子的基础上 ,提出了基于栅格地理信息系统的流域土壤侵蚀量估算的指标模型。结合嘉陵江上游西汉水流域具体情况 ,以降雨、地形、沟谷密度、植被盖度、成土母质等为主要指标 ,对流域土壤侵蚀量进行了估算 ,计算结果与实测数据相符合
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| 关 键 词： | 地理信息系统 土壤侵蚀 遥感 |
| 文章编号： | 1009-2242(2001)01-0105-03 |
Categorical Model of Estimating Soil Erosion Based on GIS——A Case Study in Xihanshui Watershed |
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| HUANG Shi feng,ZHONG Shao nan,XU Mei.Categorical Model of Estimating Soil Erosion Based on GIS——A Case Study in Xihanshui Watershed[J].Journal of Soil and Water Conservation,2001,15(2):105-107,116. |
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| Authors: | HUANG Shi feng ZHONG Shao nan XU Mei |
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| Institution: | HUANG Shi feng 1,ZHONG Shao nan 1,XU Mei 2 |
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| Abstract: | Based on factor analysis of soil erosion, a categorical model of estimating soil erosion based on GIS has been proposed. The key to this model is to set up the relationship between soil erosion and driven factors, such as rainfall, terrain, cleuch density, percentage of vegetation coverage, soil texture and so on. It so happened that Geographical Information Systems provide the functions to manage manipulate those datasets. Case study of Xihanshui watershed showed that the categorical model based on GIS has the advantage of quantitative estimation of soil erosion,can be used to monitor soil erosion dynamically. |
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| Keywords: | geographical information system soil erosion remote sensing |
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