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Position: Home > Articles > Spatial and Temporal Variability of Landuse and Soil Erosion in Yan'an City Bulletin of Soil and Water Conservation 2008,28 (3) 148-151

延安市土壤侵蚀和土地利用时空变化分析

作  者:
卓静;刘安麟;邓凤东
单  位:
西北大学城市与资源学系;陕西省农业遥感信息中心
关键词:
宝塔区;土壤侵蚀;土地利用;TM图像
摘  要:
以TM影像为数据源,动态监测了延安市宝塔区1997,2004年的土地利用、土壤侵蚀的时空变化,并对该变化进行了分析。结果表明,宝塔区土壤侵蚀主要发生在耕地、林地、草地、果园这4种土地利用类型中;1997—2004年期间,宝塔区耕地面积大幅减少,林地、草地面积有所增加,土壤侵蚀面积减少,侵蚀等级下降。总体上来说,延安市土地利用和土壤侵蚀状况都是向良性循环发展的。
译  名:
Spatial and Temporal Variability of Landuse and Soil Erosion in Yan'an City
作  者:
ZHUO Jing1,2,LIU An-lin2,DENG Feng-dong2 (1.Department of Urban and Resource Science;Northwest University,Xi'an,Shaanxi 710127,China 2.Shaanxi Remote Sensing Information Center for Agriculture,Xi'an,Shaanxi 710015,China)
关键词:
Baota District;soil erosion;landuse;TM image
摘  要:
In order to dynamically monitor soil erosion and determine the relationship between landuse and soil erosion in Baota District of Yan'an City,an analysis was performed using the data from TM images in the two periods of 1997 and 2004.Results show that soil erosion occurred in cultivated land,forestland,grassland,and orchard.The area of cultivated land decreased and the areas of woodland,grassland,and orchard increased from 1997 to 2004.The area of soil erosion decreased and its grade descended.Generally speaking,landuse and soil erosion control in the study area develop towards a good direction.

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