Spatial-temporal Evolution and Driving Factors of Habitat Quality Based on Different Topographic Gradients in Zhaotong City, Yunnan Province  

云南省昭通市不同地形梯度生境质量时空演变及驱动因素研究

作　　者：CHEN Hongmin LIU Fenglian YANG Bowen LUO Qinqin 陈洪敏;刘凤莲;杨博文;罗芹芹(云南财经大学国土资源与持续发展研究所,昆明650221;云南财经大学云南省服务计算重点实验室,昆明650221)

机构地区：[1]Institute of Land&Resources and Sustainable Development,Yunnan University of Finance and Economics,Kunming 650221,China [2]Yunnan Key Laboratory of Service Computing,Yunnan University of Finance and Economics,Kunming 650221,China

出　　处：《Journal of Resources and Ecology》2025年第2期306-325,共20页资源与生态学报(英文版)

基　　金：The Scientific Research Fund Project of Yunnan Education Department (2024J0634);The Talent Project of Yunnan University of Finance and Economics (2022D13);The Foundation of Yunnan Key Laboratory of Service Computing (YNSC24305)。

摘　　要：Habitat quality plays a crucial role in enhancing the regional ecological environment and safeguarding biodiversity,with topography being a key element influencing the structure and function of ecosystem services.This research aims to assess habitat suitability across various topographic gradients,analyze the spatial heterogeneity of habitat quality between 2000 and 2020,and explore the relationship between influencing factors and habitat quality.InVEST model is used to evaluate the spatial-temporal evolution characteristics of habitat quality in Zhao-tong City,focusing on how topographic gradients impact habitat quality distribution.The study also delves into the factors affecting habitat quality in Zhaotong City,including land use patterns,elevation,slope,average annual temperature and other variables.The results indicate three key aspects of this system.(1)During the study period,the land use types were mainly forest land,farmland and grassland,with construction land experiencing the most significant increase.(2)From 2000 to 2020,the quality areas of high and medium habitats in Zhaotong City de-creased,while the quality areas of medium-high,medium-low and low habitats increased.(3)The study revealed a notable topographic gradient effect on habitat quality,with the primary driver shifting from GDP to land use type and subsequently to average annual precipitation in Zhaotong City.The transfer between different grades of habitat quality mainly presents the characteristics of“descending”transfer,with medium-low quality habitats typically found on medium-low topographic gradients and medium-high quality habitats on medium-high gradients.Cross-detection results show that land use type exhibited the strongest correlation with other influencing factors.Therefore,this study can provide a scientific basis for policy makers to protect biodiversity,enhance ecosystem services and promote regional economic development.生境质量是改善区域生态环境和保护生物多样性的重要基础,地形是影响生态系统服务功能结构的重要因素。本研究旨在识别不同地形梯度下的生境适宜性,分析2000–2020年生境质量的空间异质性,并探讨影响因素与生境质量的相关性。采用In VEST模型对2000–2020年昭通市生境质量时空演化特征进行了评价,并基于地形梯度视角检测了昭通市生境质量空间分异特征。利用土地利用类型、高程、坡度、年平均气温等因素,对昭通市生境质量的驱动因素进行了研究。结果表明:(1)研究期间,土地利用类型以林地、耕地和草地为主,增加最多的土地利用类型为建设用地;(2)2000–2020年,昭通市高等、中等生境质量面积减少,中高等、中低等和低等生境质量面积增加;(3)昭通市生境质量具有显著的地形梯度效应,其主导驱动因子由GDP→土地利用类型→年平均降水量。不同等级生境质量之间的转移主要表现为“递减”转移特征,呈现出低地形梯度生境质量低、高地形梯度生境质量高的现象。交叉检测结果表明,土地利用类型与其他驱动因素的相关性最高。因此,本研究可为决策者保护生物多样性、增强生态系统服务功能和促进区域经济发展提供科学依据。

关 键 词：habitat quality InVEST model topographic gradients Geo-detector Zhaotong City 

分 类 号：X171.1[环境科学与工程—环境科学]