干旱区地理2025，Vol.48Issue(11)：1926-1938,13.DOI:10.12118/j.issn.1000-6060.2024.703
中国西北干旱生态移民区跨流域调水生态效益研究
Ecological benefits of inter-basin water transfer in arid ecological migration regions of northwest China:A case of Huanghuatan ecological immigrant area
摘要
Abstract
Ecological migration and inter-basin water transfer are important measures for ecological restoration and environmental protection in the arid regions of northwest China,which are indispensable for rural revitaliza-tion and ecological civilization construction.This paper takes the ecological migrant area of Huanghuatan as re-search object,selecting 15 ecological indicators from four levels:natural meteorology,vegetation profiles,human activities and landscape patterns,constructs an ecological benefits evaluation system,and analyzes the impacts that nature and human activities have the ecological benefits of the study area from 2005 to 2020.The results indi-cated that:(1)Dry land,open land,and construction land increased,while other land use types fell in the Huang-huatan ecological migrant area from 2005 to 2020.The main transfer mode was conversion among dry land,grassland and bare land.(2)At the level of type,the fragmentation degree of grassland and bare land first de-creased and then increased,the dry land first increased and then decreased,and other land use types went largely unchanged.At the level of landscape,with the exception of the degree of the aggregation index,indices showed a trend of increasing first and then decreasing.(3)The annual mean value of normalized difference vegetation in-dex showed a continuous upward trend,increasing by 109.41%overall from 2005 to 2020,mainly showing a trend of continuous improvement from the high-value area to the surroundings.(4)The annual mean value of the net primary productivity(NPP)changed little,and the annual mean value of NPP in about 90%of the regions was 1-50 g C·m-2.Exploratory research on the evaluation of ecological benefit in the arid region of northwest China can provide scientific and technological support for comprehensive evaluation of the ecological environmental benefits of ecological migration and inter-basin water transfer projects,as well as ecological protection manage-ment in the northwest arid region.关键词
生态效益/生态移民/跨流域调水/景观格局/植被覆盖/中国西北干旱区Key words
ecological benefits/ecological migration/inter-basin water transfer/landscape pattern/vegetation cover/arid region of northwest China引用本文复制引用
田晋华,黄枭,高雅玉,郝建斌,吴冠衡,何文博..中国西北干旱生态移民区跨流域调水生态效益研究[J].干旱区地理,2025,48(11):1926-1938,13.基金项目
甘肃省重点研发计划项目(22YF7FA165) （22YF7FA165）
2022年陇原青年创新创业人才(团队)项目(甘组通字[2022]77号) （团队）
甘肃省水利科学试验研究及推广计划项目(甘水建管发[2025]24,[2024]78号) （甘水建管发[2025]24,[2024]78号）
兰州理工大学研究生课程思政示范项目(KCSZ-SF-202302606)资助 （KCSZ-SF-202302606）
