“3S”技术在土壤侵蚀研究中的应用

长江流域资源与环境 >> 2004, Vol. 13 >> Issue (5): 503-507.

“3S”技术在土壤侵蚀研究中的应用

张利华, 薛重生

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-09-20
通讯作者: 张利华

SOIL EROSION IN THE NORTHEAST OF HUBEI PROVINCE BY 3S TECHNIQUES

ZHANG Li-hua, XUE Chong-sheng

Received:1900-01-01 Revised:1900-01-01 Online:2004-09-20
Contact: ZHANG Li-hua

摘要/Abstract

摘要： “3S”技术是进行土壤侵蚀研究的有效工具，可以对土壤侵蚀分布与强度的动态变化进行快速监测，为水土保持决策提供依据。介绍了水力土壤侵蚀分类分级标准；研究了植被覆盖度、坡度和土地利用因子的TM影像判读方法：以TM432合成的假彩色图像和NDVI植被指数灰度图像提取植被覆盖度、DEM数据派生坡度数据、土地利用现状图获得耕地分布。以湖北省东北地区为研究区域，通过对植被覆盖度、坡度和土地利用指标的综合分析确定了该区土壤侵蚀现状和动态变化。在ARC/INFO 软件支持下，利用研究区2000年的TM图像对该区土壤侵蚀强度、空间分布进行了分析，并与1995年调查数据进行了比较，分析了研究区土壤侵蚀动态变化。

关键词: “3S”技术, 土壤侵蚀, 湖北省东北地区

Abstract: The 3S techniques are the integration of Global Positions System and Remote Sensing and Geographical Informatin System, and are efficient for the study of soil erosion. 3s techniques can quickly monitor the changing process of the soil erosion, the result can supply evidence for the government's land protection decisions. This paper introduces the standard of the soil erosion grading, then studies the method of assessing the vegetation covering ratio, slopes and land utilizing in TM image:vegetation covering ratio is extracted by TM432 and NDVI,the slopes data come from DEM, infield distribution data is obtained from land utilizing distribution map. We analyse soil erosion status and its change in the northeast of Hubei province with low hill and hill land through analyzing the vegetation covering ratio, slopes and land utilizing synthetic:in the sustain ARC/INFO software. This paper analyze the intensity and distribution of soil erosion in the Northeast of Hubei Province by 2000’s TM image, and analyze its change by comparing the data between 2000 and 1995.

Key words: 3S techniques, soil erosion, Northeast of Hubei Province

张利华, 薛重生. “3S”技术在土壤侵蚀研究中的应用[J]. 长江流域资源与环境, 2004, 13(5): 503-507.

ZHANG Li-hua, XUE Chong-sheng. SOIL EROSION IN THE NORTHEAST OF HUBEI PROVINCE BY 3S TECHNIQUES[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2004, 13(5): 503-507.

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