生态与农村环境学报2024，Vol.40Issue(7)：877-887,11.DOI:10.19741/j.issn.1673-4831.2023.0906
桂西南喀斯特峰丛洼地流域生境质量时空变化及驱动机制
Spatio-temporal Evolution Characteristics and Driving Mechanism of Habitat Quality in the Karst Peak Cluster Depression Basin of Southwestern Guangxi
摘要
Abstract
Habitat quality reflects the ecological status of a region,serving as the foundation for all ecosystem services and functions,and is crucial for formulating policies on regional ecological protection and land use planning.The peak cluster depression basin in southwest Guangxi is a vital ecological barrier within the Pearl River basin,and it is also a significant area for water conservation and biodiversity protection in China.This study utilizes land use data and driving factors from 2000,2010,and 2020.The CA Markov model is employed to simulate and predict land use for 2030 under three scenari-os:natural development,food security,and ecological protection.Subsequently,the In VEST model is used to assess habi-tat quality across these scenarios from 2000 to 2030.The findings reveal that:(1)The average habitat quality indices for 2000,2010,and 2020 were 0.776,0.785,and 0.793 respectively,indicating a generally high level of habitat quality.(2)For 2030,the average habitat quality indices under the natural development,food security,and ecological protection scenarios would be 0.798,0.779,and 0.807 respectively.The ecological protection scenario showed the greatest increase in high-quality habitat area,followed by the natural development scenario.The high-quality habitat area under the food se-curity scenario will be lower than in 2020,and even lower than in 2010.(3)Land use type was the primary factor influen-cing habitat quality spatial variation in the peaked depression watersheds of southwestern Guangxi,followed by NDVI,ele-vation,slope,and the degree of rocky desertification.The combined explanatory power of the climatic environment was rel-atively minor.To enhance the ecological environment in Karst Plateau areas,it is imperative to strictly enforce the protec-tion boundaries defined in land use planning,reasonably control the development scale of construction land,optimize the ecological compensation mechanisms,and implement ecological restoration policies such as Grain for Green and grassland restoration.关键词
生境质量/时空变化/驱动机制/峰丛洼地Key words
habitat quality/spatial-temporal evolution/driving mechanism/peak cluster depression分类
管理科学引用本文复制引用
张亚丽,黄柱军,田义超,林俊良,陈亮..桂西南喀斯特峰丛洼地流域生境质量时空变化及驱动机制[J].生态与农村环境学报,2024,40(7):877-887,11.基金项目
国家自然科学基金(42061020) （42061020）
广西自然科学基金联合资助培育项目(2018JJA150135) （2018JJA150135）
广西创新驱动发展专项(AA18118038) （AA18118038）
广西高校中青年教师科研基础能力提升项目(2021KY0431,2022KY0412) （2021KY0431,2022KY0412）
