西北林学院学报2024，Vol.39Issue(5)：195-201,7.DOI:10.3969/j.issn.1001-7461.2024.05.24
西北农牧交错带土地利用变化及其生态环境效应研究
Land Use Change and Ecological Environment Effects in the Northwest Agro-pastoral Belt
摘要
Abstract
This study took Huanxian County of Gansu Province,a typical area of the northwest agro-pasto-ral ecotone,as the research object.Based on the land use status data of four periods in 2007,2012,2017 and 2022,and on the basis of analyzing the temporal and spatial changes of land use,this study further explored the changes of regional eco-environmental quality index and ecological contribution rate.The correlation between land use change and ecological environment quality was expounded.The results showed that the change of land use area in Huanxian County showed a trend of"one decrease and five increases".The area of grassland decreased,the areas other five land types increased,in which the area of forest land increased the most.The types of land use change were the mutual transformation among grassland,forest land,culti-vated land and construction land.The conversion of grassland to cultivated land had the greatest effect on the ecological deterioration of the region,and the conversion of grassland to forest land had the greatest contribution to the ecological improvement.Therefore,land use should be scientifically and reasonably planned and determined on the basis of protecting cultivated land to give full play of the positive ecological and environmental effects of grassland and forest land.关键词
西北农牧交错带/土地利用/生态环境效应/生态贡献率/环县Key words
northwest agro-pastoral belt/land use/ecological environmental effect/ecological contribution rate/Huanxian County分类
建筑与水利引用本文复制引用
黄彦宁,叶得明..西北农牧交错带土地利用变化及其生态环境效应研究[J].西北林学院学报,2024,39(5):195-201,7.基金项目
甘肃省社科规划项目(19YB127). （19YB127）
