摘要
利用1988年,2000年的遥感图像数据,求得吉林省松原市沙区土地利用变化的转移矩阵,根据计算结果,分析探讨了松原市沙区监测期间土地利用变化特征及区域差异。结果表明:松原市沙区土地利用变化显著,耕地、林地大幅度增加,草地与未利用地减少且空间差异明显,土地利用变化的主要驱动力是人口增长和土地收益高低。在此基础上探讨了土地利用变化方向对该区土地沙化演化的影响,研究表明:耕地向草地和林地的转移有利于沙化的逆转,林地向草地和耕地转移会使沙化进一步发展。
Based on the remote sensing data in 1988 and 2000,the convertion matrix of the sandification districts land use was calculated in Songyuan city. Further, the characteristics and the regional differences of the sandification districts Land use were analyzed in 1990s .The conclusions may be as follows:(1) The change of the sandification districts land use is notable. The primary land use such as farmland and woodland increases rapidly and shows obvious spacial differences.(2) The main driving forces of land use are the rapid growth of population and economic value of land.(3) The change of land use restricts the evolvement of land sandification.
出处
《水土保持学报》
CSCD
北大核心
2002年第4期66-69,共4页
Journal of Soil and Water Conservation
基金
国家自然科学基金(49901017)资助项目
关键词
沙区土地利用
转移矩阵
土地沙化
松原市
动态变化
sandification district's land use
convertion matrix
land sandification
Songyuan city
