干旱区地理2025，Vol.48Issue(3)：467-479,13.DOI:10.12118/j.issn.1000-6060.2024.319
生态系统服务权衡协同下的甘肃省生态功能分区优化
Optimization of ecological function zoning in Gansu Province under the trade-offs and synergies of ecosystem services
摘要
Abstract
Using physical geographic and socioeconomic data,we analyzed the ecological service functions and their trade-off synergistic relationship in Gansu Province,which is an ecologically fragile area in northwest Chi-na.We explored the optimization of ecological function zoning under a trade-off synergistic relationship by apply-ing the InVEST model,CASA model,and ArcGIS spatial analysis.The results were as follows:(1)From 2000 to 2020,because of large-scale ecological construction projects,such as the return of farmland to forests,the ecolog-ical functions of Gansu Province(e.g.,forest land,grassland,river water surface,and lake water surface)in-creased,and four kinds of ecological services(i.e.,carbon sequestration,habitat quality,soil retention,and water production)showed fluctuating upward trends.(2)In the trade-off synergistic relationship,the habitat quality-wa-ter production,carbon sequestration-water production,soil retention-habitat quality,and carbon sequestration-wa-ter production showed medium to high levels of ecological services.Habitat quality-soil conservation showed moderate synergistic relationships,whereas soil conservation-carbon sequestration,soil conservation-water yield,and habitat quality-carbon sequestration showed strong synergistic relationships.(3)On the basis of K-means clustering,Gansu Province was divided into six ecological zones:economic-cultural development zone,habitat quality-carbon sequestration priority zone,soil conservation-carbon sequestration priority zone,biodiversity-soil conservation zone,soil and water conservation zone,and ecological services conservation zone.The trade-off syn-ergistic relationships were incorporated in the optimization of ecosystem service cluster zoning,and the area to be optimized accounted for 3.07%of the province's area.By comprehensively analyzing the similarities and differ-ences of ecosystem services and forming ecosystem service clusters with full consideration of the trade-off syner-gistic relationship within zones,the traditional ecological zoning was optimized and adjusted,and spatially differ-entiated governance measures were proposed to enhance synergies and mitigate trade-offs.关键词
生态系统服务/生态分区/权衡协同/甘肃省Key words
ecosystem services/ecological zoning/trade-offs and synergies/Gansu Province引用本文复制引用
李潇飞,龚健,叶菁,方鸿嘉,张世镇,林家胜..生态系统服务权衡协同下的甘肃省生态功能分区优化[J].干旱区地理,2025,48(3):467-479,13.基金项目
国家自然科学基金项目(41871172)资助 （41871172）
