中国农业大学学报2018，Vol.23Issue(2)：115-125,11.DOI:10.11841/j.issn.1007-4333.2018.02.15
1992年以来科尔沁沙地土地利用变化分析——以科尔沁左翼后旗为例
Analyze of the land use change in Horqin Sandy Land since 1992: A case study of Horqin Zuoyihou
摘要
Abstract
In order to understand the land use changes and the degree of human activities in Horqin sandy land since 1990s,the land use data in 1992,2001 and 2014 is analyzed by taking Horqin Zuoyihou Banner as a study case.Several aspects including the land use dynamic degree at the grid scale,land use change significance index,land use degree and the rainfall during crop growth are analyzed for the area during different periods.The results show that.1) Grass land is distributed in the west while cultivated land mainly in the east,and different land types including grass land,cultivated land,forest are distributed in the central area.Cultivated land、forestland、construction land and sand land increased while grass,water area and salt alkali land decreased.2) Places that land use dynamic degree between 19％ and 29％ are most distributed in the central area,as the human activities are stronger.3) The percent of land use changes area increased from 41.7％ to 45％.Therefore,land use changes were dramatic.The transformations among grass land,cultivated land,forest land,sandy land were dominated in the area.The land use in this area is also developing at the stage.4) The increase of cultivated land in area where rainfall during crop growth was between 391 and 432 mm was 44.7％.Meanwhile,the increase between 293 and 340 mm was 10.5％.Newly cultivated land is preferred to areas with more rainfall.For the future development of this area on the one hand,it is worthwhile to strengthen land use management and control reclamation for cultivated land.On the other hand,returning cultivated land should consider rainfall conditions.The west should be given priority to return cultivated land,and the east is more suitable for planting.关键词
土地利用变化/土地利用综合动态度/土地利用程度/降水量/科尔沁左翼后旗Key words
land use change/land use dynamic degree/land use degree/rainfall/Horqin Zuoyihou Banner分类
管理科学引用本文复制引用
樊嘉琦,徐艳,陈伟强..1992年以来科尔沁沙地土地利用变化分析——以科尔沁左翼后旗为例[J].中国农业大学学报,2018,23(2):115-125,11.基金项目
国土资源部公益性行业科研专项(201411009) （201411009）
