深圳市生态质量时空演变及驱动机制分析OA
Spatiotemporal evolution of ecological quality and its driving mechanisms in Shenzhen,China
生态状况是衡量城市发展水平的重要组成部分,深入解析城市生态状况的时空演变特征及其驱动机制,对于城市生态建设与可持续发展具有重要的参考价值.基于Landsat影像,采用主成分分析法耦合绿度、湿度、热度和干度4项指标,构建遥感生态指数(remote sensing ecological index,RSEI),并据此对深圳市1990-2020年间的生态质量及时空变化特征进行系统分析;结合地理探测器模型,探讨自然环境和人类活动等9个驱动因子对生态质量演变的影响.研究结果表明:① 深圳市的生态质量呈现显著的空间分异,生态质量较好的区域主要分布在城市东南部及西部边缘,而较差区域集中在西部及中部的城市建成区.② 过去30 a,深圳市生态质量整体呈改善趋势,其中,33.0%的区域生态质量提升,23.9%的区域出现退化,整体以生态改善为主.③ 影响生态质量变化的关键因素包括气温、坡度、高程和土地利用类型,且影响程度较高,而降水因子的影响相对较小.驱动因子间的交互作用主要表现为双因子增强和非线性增强两种类型,其中,双因子增强占主导地位.总体来看,深圳市生态质量的空间分异特征是自然因素与人为因素共同作用的结果,相较而言,自然因素的影响占主导地位,但人为因素的影响力正逐步增强.本研究揭示了深圳市生态质量时空演变规律及其驱动机制,可为城市生态保护与可持续发展提供科学依据.
Ecological quality is an important indicator of urban development.Understanding the spatiotemporal evolution of urban ecological conditions and their driving mechanism is essential for urban ecological construction and sustainable development.In this study,Landsat imagery was used to construct a remote sensing ecological index(RSEI)by integrating four indicators—greenness,wetness,heat and dryness—through principal component analysis(PCA).Based on the RSEI,the ecological quality of Shenzhen during 1990-2020 and its spatiotemporal variations were systematically analyzed.Furthermore,the geographical detector model was employed to quantify the effects of nine driving factors including natural environmental conditions and human activities,on ecological quality changes.The results show that:① Ecological quality in Shenzhen exhibits significant spatial heterogeneity,with relatively high ecological quality mainly distributed in the southeastern and western urban fringes,whereas lower ecological quality is concentrated in the western and central built-up areas.② Over the past 30 years,ecological quality in Shenzhen has shown an overall improvement trend,with 33.0%of the area experiencing ecological improvement and 23.9%showing degradation,indicating that the ecological improvement dominates overall.③ Temperature,slope,elevation and land use type are the key factors influencing ecological quality changes,while the influence of precipitation factor is relatively weak.Interactions among driving factors mainly exhibit two patterns:bivariate enhancement and nonlinear enhancement,with bivariate enhancement being the dominant interaction type.Overall,the spatial differentiation of ecological quality in Shenzhen results from the joint action of natural factors and anthropogenic factors.Natural factors currently play a dominant role,but the influence of human activities is gradually increasing.This study reveals the spatiotemporal evolution patterns and driving mechanisms of ecological quality in Shenzhen and provides a scientific basis for urban ecological protection and sustainable development.
蒋瑞霞;孙芳芳;董程程;王莉;赵龙龙;陈劲松;李晓丽;李洪忠
中国科学院深圳先进技术研究院,广东 深圳 518055||河南理工大学测绘与国土信息工程学院,河南 焦作 454003深圳市环境科学研究院,广东 深圳 518001深圳市环境科学研究院,广东 深圳 518001河南理工大学测绘与国土信息工程学院,河南 焦作 454003中国科学院深圳先进技术研究院,广东 深圳 518055中国科学院深圳先进技术研究院,广东 深圳 518055中国科学院深圳先进技术研究院,广东 深圳 518055中国科学院深圳先进技术研究院,广东 深圳 518055
资源环境
环境遥感生态质量动态监测遥感生态指数影响因素地理探测器深圳市
environmental remote sensingecological qualitydynamic monitoringremote sensing ecological index(RSEI)influencing factorsgeographic detectorShenzhen City
《深圳大学学报（理工版）》 2026 (2)
139-148,10
National Natural Science Foundation of China(42271353)Scientific Research Project of Ecology Environment Bureau of Shenzhen Municipality(SZDL2023001387)Shenzhen Basic Research Foundation(JCYJ20220818101617038) 国家自然科学基金资助项目(42271353)深圳市生态环境局科研项目(SZDL2023001387)深圳市基础研究计划资助项目(JCYJ20220818101617038)
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