中国农业大学学报2018，Vol.23Issue(3)：95-105,11.DOI:10.11841/j.issn.1007-4333.2018.03.12
基于沙漠化和适宜性的农牧交错带土地利用优化研究——以内蒙古科尔沁左翼后旗为例
Optimization of land-use structure in the farming-grazing transitional zone based on desertification status and land adaptability：A case study of Horqin Left Wing Rear Banner,Inner Mongolia
摘要
Abstract
The purpose of this study was to explore the way of reasonable utilization of land in the farming-grazing transitional zone.Land use types and land desertification information were extracted from the same period remote sensing images of Horqin Left Wing Rear Banner.The land suitability information was extracted from the basic data of topography,soil and water resources in the study area.Based on the analysis of land desertification and land suitability,the land use structure optimization by using GIS and RS was conducted.The results showed that the ratio of decertified land was 77.94％ and the degree of desertification declined from northwest to southeast.The desertification and suitability status of cultivated land,forest land and grassland were significantly correlated:The lower the suitability,the higher the possibility of desertification.Among which,the cultivated land was the most representative.The reclamation of low suitability for cultivated land and extensive using of land was the reason of cultivated land desertification.Low quality land reclamation and overgrazing were the reasons of forest land and grassland desertification.Cultivated land in the ecological fragile areas decreased by 2.80％.Forest land and grassland developed from the sand land reclamation increased by 6.88％ and 16.02％ respectively.Researches on semi-the application method of grassland and semifarmland leaded to frequent transformation between cultivated land and forest land,grassland,which promoted further development of desertification.In order to realize the sustainable development,the optimization of land use should support ecological recovery,and promote the balanced development of animal husbandry and planting industry at the same time.关键词
农牧交错带/土地利用类型/沙漠化/土地适宜性/土地利用优化/内蒙古科尔沁左翼后旗Key words
farming-grazing transitional zone/land use type/desertification/land suitability/the land use structure/Horqin Left Wing Rear Banner分类
管理科学引用本文复制引用
杨微,徐艳..基于沙漠化和适宜性的农牧交错带土地利用优化研究——以内蒙古科尔沁左翼后旗为例[J].中国农业大学学报,2018,23(3):95-105,11.基金项目
国土资源部公益性行业科研专项资金资助 （）
内蒙古宜耕沙地保护性开发关键技术及示范(201411009) （201411009）
