应用生态学报2017，Vol.28Issue(12)：4057-4066,10.DOI:10.13287/j.1001-9332.201712.020
黑河中游土地利用转型过程及其对区域生态质量的影响
Process of land use transition and its impact on regional ecological quality in the Middle Reaches of Heihe River, China
摘要
Abstract
Land use transition is one of the main drivers of regional ecosystem change in arid area,which directly affects human well-being.Based on the satellite images of 1987,2001 and 2016,the change detection assessment model and ecological response model were used to analyze the process of land use transition and response of ecological quality during 1987-2016 in the ecologically fragile middle reaches of the Heihe River.The results showed that the land use change was significant during 1987-2016 and the total change increased significantly,as well as the continuous increase of the cultivated land and construction land.There was a strong tendency of transform from grassland to cultivated land,while the tendency of transforming unused land to other land classes was not strong under a random process of gain or loss.During 1987-2016,the ecological quality of the study area displayed a decreasing trend as a whole and the ecological land decreased by 2.8％.The land use transition with the greatest impact on the ecological environment degradation was the transition of the grassland to the cultivated land and unused land.Therefore,in order to promote the sustainable use of regional land resources and to improve the regional ecological quality,it is necessary to allocate the proportion of production land and ecological land according to the regional water resources.关键词
土地利用转型/生态质量/生态等级/黑河中游地区Key words
land use transition/ecological quality/ecological grade/the middle reaches of Heihe River.引用本文复制引用
王福红,赵锐锋,张丽华,李鸿伟..黑河中游土地利用转型过程及其对区域生态质量的影响[J].应用生态学报,2017,28(12):4057-4066,10.基金项目
本文由国家自然科学基金项目(41261047,41761043)和西北师范大学青年教师科研能力提升计划骨干项目(NWNU-LKQN-11-11)资助 This work was supported by the National Natural Science Foundation of China (41261047,41761043) and the Youth Teacher Scientific Capability Promoting Project of Northwest Normal University(NWNU-LKQN-11-11). （41261047,41761043）
