[1]王尧,蔡运龙,潘懋.贵州省乌江流域土地利用与土壤侵蚀关系研究[J].水土保持研究,2013,20(03):11-18.
　WANG Yao,CAI Yun-long,PAN Mao.Analysis on the Relationship between Soil Erosion and Land Use in Wujiang River Basin in Guizhou Province[J].Research of Soil and Water Conservation,2013,20(03):11-18.
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贵州省乌江流域土地利用与土壤侵蚀关系研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年03期 页码: 11-18 栏目: 出版日期: 2013-06-28
Title:
Analysis on the Relationship between Soil Erosion and Land Use in Wujiang River Basin in Guizhou Province
作者:
王尧1,3, 蔡运龙2, 潘懋1
1. 北京大学 地球与空间科学学院, 北京 100871;
2. 北京大学 城市与环境学院 土地科学中心, 北京 100871;
3. 国土资源部 资源环境承载力评价重点实验室, 北京 101149
Author(s):
WANG Yao1,3, CAI Yun-long2, PAN Mao1
1. School of Earth and Space Sciences, Peking University, Beijing 100871, China;
2. Center for Land Study, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;
3. Key Laboratory of Carrying Capacity Assessment for Resource and Environment, Ministry of Land & Resources, Beijing 101149, China
关键词:
土壤侵蚀强度; 土地利用格局; 植被覆盖度; 喀斯特; 乌江流域
Keywords:
soil erosion intensity; land use pattern; vegetation coverage; karst; Wujiang River Basin
分类号:
S157.1;F301.24
摘要:
根据贵州省乌江流域20世纪80年代初和2000年左右的15幅Landsat MSS/ETM遥感影像数据、2000年土壤侵蚀调查数据和GIMMS/AVHRR NDVI数据，利用遥感、GIS技术和数理统计方法，系统分析了1980—2000年贵州省乌江流域土地利用/覆被变化的时空特征，探讨了不同土地利用方式对土壤侵蚀的影响。研究表明：乌江流域土地利用类型以林地、耕地和草地为主。1980—2000年的20 a间，流域内土地利用/土地覆被数量结构变化明显，呈好转趋势。不同土地利用类型下的土壤侵蚀强度大小为：裸岩石砾地<其他林地<建设用地<有林地<水域<水田<低覆盖度草地<灌木林地<高覆盖度草地<疏林地<中覆盖度草地<旱地。旱地、中覆盖度草地和疏林地是流域内土壤侵蚀发生的主要土地利用类型。从不同侵蚀等级的发生区域来看，各强度类型侵蚀都集中分布在植被覆盖度为50%~60%的地区，侵蚀存在50%~60%的植被覆盖度临界值，这与非喀斯特地区随着植被盖度降低，侵蚀强度逐渐增大的规律不同。
Abstract:
Based on 15 remote sensing images and relevant image processing techniques, and statistic methods, the spatial-temporal characteristics of land use change in Wujiang River Basin, Guizhou Province during the period of 1980—2000 was analyzed. The images involved the Multispectral Scanner (MSS) data acquired around 1980, Landsat-ETM data around 2000, soil erosion data acquired in 2000, GIMMS/AVHRR NDVI data acquired in 2000. The results show that forest land, farm land and grassland were the main land use types in WRB. There was an obvious good change in land use in the study area during 1980—2000. Analysis on the relationship between soil erosion and land use suggests that different land use types had different degrees of soil erosion, i.e. barren land < other land < onstruction land < forest land < water area < paddy field < grassland with low coverage < shrub land < grassland with high coverage < open forest land < grassland with medium coverage < dry land. Among these land use types, dry land, grassland with medium coverage and open forest land were mostly frequently accompanied with soil erosion. All types of soil erosion concentrate on areas with vegetation coverage of 50%~60%. When the vegetation coverage fell to 50%~60%, the most serious soil erosion happened, which was different with the situation in non-karst areas where soil erosion intensified along with the degradation of vegetation.

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备注/Memo

收稿日期:2012-09-27;改回日期:2012-12-06。
基金项目:国家科技支撑计划子课题（2011BAC09B08-04）；国家地质调查计划项目（1212011220090）
作者简介:王尧(1979-),女,山东威海人,助理研究员,博士,主要从事土地科学研究。E-mail:wangyaopku@pku.edu.cn
通讯作者:蔡运龙(1948-),男,贵州贵阳人,教授,博士,主要从事自然地理学、土地变化、地理学理论与方法等方面的研究。E-mail:caiyl@urban.pku.edu.cn

更新日期/Last Update: 1900-01-01