[1]林杰,李海东,张金池,等.基于GIS的小流域土壤抗蚀性空间变异特征[J].水土保持研究,2009,16(02):19-23.
　LIN Jie,LI Hai-dong,ZHANG Jin-chi,et al.Spatial Variability of Soil Anti-erodibility in a Small Watershed Based on GIS[J].Research of Soil and Water Conservation,2009,16(02):19-23.
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基于GIS的小流域土壤抗蚀性空间变异特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年02期 页码: 19-23 栏目: 出版日期: 2009-04-20
Title:
Spatial Variability of Soil Anti-erodibility in a Small Watershed Based on GIS
作者:
林杰1, 李海东2, 张金池1, 梦莉1, 鄂轶静3
1. 南京林业大学森林资源与环境学院, 南京, 210037;
2. 环境保护部南京环境科学研究所, 南京, 210042;
3. 江苏省水文水资源勘测局镇江分局, 江苏, 镇江, 212003
Author(s):
LIN Jie1, LI Hai-dong2, ZHANG Jin-chi1, MENG Li1, E Yi-jing3
1. College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, 210037, China;
2. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing, 210042, China;
3. Zhenjiang Hydrology & Water Resource Survey Bureau of Jiangsu Province, Zhenjiang, 212003, China
关键词:
小流域; GIS; 土壤抗蚀性; 空间变异; 苏南丘陵区
Keywords:
small watershed; GIS; soil anti-erodibility; spatial variability; hilly area of southern Jiangsu province
分类号:
S157.1
摘要:
运用GS+7.0和Surfer 8.0软件以邓下小流域为例,研究了苏南丘陵区小流域土壤抗蚀性的空间变异特征及土壤理化性质对其的影响,以期为小流域的土壤侵蚀预报和综合治理提供依据.结果表明:土壤抗蚀性的变化范围为0.1808~0.9681,均值为0.6477,变异系数为27.69%,土壤抗蚀性具有中等程度的空间变异性.C0/(C0+C)值为13.47%,小于25%,表明在变程内具有强烈的空间相关性.研究区土壤抗蚀性总体分布趋势是条带状明显,波动较大,大于0.65的高值区域主要分布在小流域从南到北的中间部位,小于0.4的低值区域分布主要位于小流域地势较高的北部和东西两侧,容易发生水土流失.
Abstract:
Aiming at promoting the prediction precision of soil erosion and providing the basis for the management of soil and water conservation in the small watershed,the spatial variability characteristics of soil anti-erodibility and its relation to soil properties were studied based on a case of study on Dengxia catchment in hilly area of southern Jiangsu province by the GIS software of GS+7.0 and Surfer 8.0.The results showed:the spatial variability of anti-erodibility at the studied area was significant difference,with the range from 0.1808 to 0.9681,mean of 0.6477,and variance coefficient of 27.69%.The C0/(C0+C) of soil anti-erodibility was 13.47%,that indicated that the soil anti-erodibility had strongly spatial self-relativity in the studied area.The whole distribution tendency of soil anti-erodibility presented belt-shaped obviously and fluctuated moderately,and the value of soil anti-erodibility was lower at the high region distributing at northern,eastern and western part of the catchment mainly,with soil and water loss arising easily.

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备注/Memo

收稿日期:2008-7-14;改回日期:。
基金项目:国家“十一五”科技支撑课题(2006BAD03A16)
作者简介:林杰(1976- ),女,博士生,讲师,研究方向为3S在水土保持中的应用.E-mail:nfulinjie@163.com

更新日期/Last Update: 1900-01-01