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[1]YANG Da-bing,LIU Hui-de,ZHENG Bing-hui,et al.Dynamic Analysis of Cultivated Land Change in Western China Based on GIS[J].Research of Soil and Water Conservation,2006,13(01):170-172.

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Dynamic Analysis of Cultivated Land Change in Western China Based on GIS

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 13 Number of periods: 2006年01期 Page number: 170-172 Column: Public date: 1900-01-01

Title:: Dynamic Analysis of Cultivated Land Change in Western China Based on GIS

Author(s):: YANG Da-bing¹, LIU Hui-de¹, ZHENG Bing-hui², LIU Hai-xin¹; 1. Hebei University of Engineering, Handan 056038, China;
2. Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Keywords:: cultivated land; GIS; the western part of China

CLC:: F301.24;TP79

DOI:: -

Abstract:: In order to discuss the characteristic and trend of the cultivated land change of every province,municipality directly under the Central Government and Autonomous region of the western part of China in recent years,based on land-utilizing and land-covering data of 1995/1996 year that was offered by Environmental Monitoring General Station of China and of 1999/2000 year that was obtained by investigation,then two years space datum overlapped and analysed by GIS technology.The result shows:during this period,the cultivated area of the western region increased by 1 910 727 hm² ,and reduced by 704 247 hm² in the same term,only increased by 1 206 480 hm² ,accounting for 2% of the total cultivated area;the cultivated area increase of the western region mainly stemmed from the meadow to cultivate which caused the cultivated land to increase by 12 990 000 hm² ,accounting for 69.4% of total cultivated area increase;it will cause land desertification and soil erosion more serious to cultivate large stretch of meadow into cultivated land,in addition the state policies begin to transform to the western part of China in recent years,which will bring more severe test to ecology of every province in the west.

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Last Update: 1900-01-01