黑河流域土地利用变化特征及其对生境质量的影响  

Characteristics of Land Use Change and The Impacts on Habitat Quality in Heihe River Basin

作　　者：张家豪 魏菲菲 李拉拉 王永强 郝若男 ZHANG Jiahao;WEI Feifei;LI Lala;WANG Yongqiang;HAO Ruonan(College of Management,Gansu Agricultural University,Lanzhou,Gansu 730070)

机构地区：[1]甘肃农业大学管理学院,甘肃兰州730070

出　　处：《热带农业工程》2024年第2期6-13,共8页Tropical Agricultural Engineering

基　　金：甘肃农业大学省级大学生创新创业训练计划项目(No.S202210733015);甘肃农业大学大学生创新创业训练计划项目(SIETP)(No.202214021)。

摘　　要：土地利用与生境质量变化研究是近年来全球环境变化领域的研究热点。以黑河流域这一典型干旱内陆河流域为对象,在研究该流域2000~2020年土地利用变化特征基础上,运用InVEST模型对研究区20年间的生境质量变化情况进行定量评估,并借助贡献度方法,进一步分析土地利用变化对生境质量产生的影响。结果表明:(1) 2000~2020年,黑河流域土地利用转变频繁,裸地和草地是主要的转移类型;(2)黑河流域生境质量整体处于较差状态,但在20年间呈现先降后增的变化趋势;(3)草地转林地对流域生境质量的提升具有推动作用,草地转裸地对区域生境质量的下降具有加速影响,加强流域草原生态的治理保护力度是助力黑河流域生物多样性保护的重要推手。In recent years,land use and habitat quality change have become a hot topic in the field of global environmental change.Taking Heihe River Basin,a typical arid inland river,as the object,based on the land use change characteristics of the basin from 2000 to 2020,the InVEST model was used to quantitatively assess the habitat quality of the study area in the past 20 years,and the impact of land use change on the habitat quality was further analyzed by the contribution method.The results showed that:(1)From 2000 to 2020,there were frequent land use changes in the Heihe River Basin,and bare land and grassland were the main transfer types.(2)The overall habitat quality in the Heihe River Basin was in a poor state,but there was a trend of first decreasing and then increasing in the past 20 years;(3)The conversion of grassland to forestland promoted the improvement of habitat quality in the basin,and the conversion of grassland to bare land accelerated the decline of regional habitat quality.Strengthening the governance and protection of grassland ecosystems was an important factor to promote biodiversity conservation in the Heihe River Basin.

关 键 词：土地利用变化 生境质量 影响 黑河流域 

分 类 号：F301.2[经济管理—产业经济]