干旱区生态环境知识资源中心(Arid): 基于GIS的中国西部耕地变化原因动态分析

Arid

	基于GIS的中国西部耕地变化原因动态分析
其他题名	Dynamic Analysis of Cultivated Land Change in Western China Based on GIS
	杨大兵 1; 刘惠德 1; 郑丙辉 2; 刘海新 1
ISSN	1005-3409
出版年	2006
卷号	13 期号:1 页码:170-172
中文摘要	为了探讨我国西部各省、直辖市、自治区近年来耕地变化的特点和趋势。该文基于中国环境监测总站提供的1995／1996年土地利用／土地覆盖数据库和本次调查的1999／2000年土地利用／土地覆盖现状数据，利用G1S技术，对两个年份空间数据进行迭加分析。结果显示：在此期间，西部地区耕地面积增加了1910727hm^2．同期减少了704247hm^2。净增加1206480hm^2。占总耕地面积的2．41％；西部地区耕地面积增加主要来源于草地开垦，本因子引起耕地增加了129．09万hm^2。占总耕地面积增加量的69．45％；大量的草地开垦成耕地，这必将造成土地沙漠化进一步加剧，水土流失更加严重，加之近年来国家政策开始向西部转移，这必将给西部各省的生态带来严峻的考验。
英文摘要	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 hm^2,and reduced by 704 247 hm^2in the same term,only increased by 1 206 480 hm^2,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 hm^2,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.
中文关键词	耕地 ; 中国西部
英文关键词	GIS cultivated land GIS the western part of China
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY ; REMOTE SENSING
WOS研究方向	Agriculture ; Remote Sensing
CSCD记录号	CSCD:2312297
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220154
作者单位	1.河北工程学院, 邯郸, 河北 056038, 中国; 2.中国环境科学研究院, 北京 100012, 中国
推荐引用方式 GB/T 7714	杨大兵,刘惠德,郑丙辉,等. 基于GIS的中国西部耕地变化原因动态分析[J],2006,13(1):170-172.
APA	杨大兵,刘惠德,郑丙辉,&刘海新.(2006).基于GIS的中国西部耕地变化原因动态分析.,13(1),170-172.
MLA	杨大兵,et al."基于GIS的中国西部耕地变化原因动态分析".13.1(2006):170-172.