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基于GIS的富屯溪流域土壤侵蚀因子分析
引用本文:洪桢华,刘健,余坤勇,赖玫妃,吕恒斌. 基于GIS的富屯溪流域土壤侵蚀因子分析[J]. 福建农林大学学报(自然科学版), 2008, 37(2): 216-220
作者姓名:洪桢华  刘健  余坤勇  赖玫妃  吕恒斌
作者单位:1. 福建林业调查规划院,福建,福州,350003
2. 福建农林大学林学院,福建,福州,350002
基金项目:福建省科技攻关项目 , 福建省教育厅科研项目
摘    要:
以富屯溪流域为研究对象,运用GIS软件的空间分析功能提取流域的高程、坡度、基础设施缓冲区、居民点缓冲区等水土侵蚀影响因子的数字格式,分别与流域土壤侵蚀图进行叠加分析,比较各侵蚀因子对侵蚀的影响关系.结果显示,高程和坡度与土壤侵蚀程度呈正相关关系;在人为因素的干扰下,土壤侵蚀主要发生在距离居民点1000 m及距离基础设施500m之内.

关 键 词:GIS  富屯溪流域  土壤侵蚀  叠加分析
文章编号:1671-5470(2008)02-0216-05
修稿时间:2007-01-19

Soil erosion factors in the watershed of Futun River based on GIS
HONG Zhen-hua,LIU Jian,YU Kun-yong,LAI Mei-fei,Lv Heng-bin. Soil erosion factors in the watershed of Futun River based on GIS[J]. Journal of Fujian Agricultural and Forestry University, 2008, 37(2): 216-220
Authors:HONG Zhen-hua  LIU Jian  YU Kun-yong  LAI Mei-fei  Lv Heng-bin
Abstract:
Based on GIS,digital data of erosion factors in various elevation,solpe and buffer area of infrastructure and residential area in the watershed of Futun River were extracted,which were used for overlay analysis of soil erosion with erosion figure.The result showed that elevation and solpe were positively correlated with soil erosion,and circumjacent areas of less than 1000 meters away from residential area and 500 meters away from infrastructure eroded more severely.
Keywords:GIS  watershed of Futun River  soil erosion  overlay analysis
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