漓江流域喀斯特综合干扰评价及其空间特征  

Comprehensive disturbance evaluation of karst and its spatial characteristics in the Lijiang River Basin,Guilin,China

作　　者：樊千涛 马姜明[1,2,3] 于名召 贺桂珍[4,5] FAN Qiantao;MA Jiangming;YU Mingzhao;HE Guizhen(Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin,Guangxi Normal University,Guilin 541006,China;Institute for Sustainable Development and Innovation,Guangxi Normal University,Guilin 541006,China;College of Life Science,Guangxi Normal University,Guilin 541006,China;State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]广西师范大学广西漓江流域景观资源保育与可持续利用重点实验室,桂林541006 [2]广西师范大学可持续发展创新研究院,桂林541006 [3]广西师范大学生命科学学院,桂林541006 [4]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085 [5]中国科学院大学,北京100049

出　　处：《生态学报》2024年第4期1404-1417,共14页Acta Ecologica Sinica

基　　金：国家重点研发计划项目(2019YFC0507501);国家自然科学基金项目(U21A2041);广西重点研发计划项目(桂科AB21220057);广西创新驱动发展专项资金项目(桂科AA20161004-4)。

摘　　要：喀斯特地区具有特殊的地质结构,生态环境脆弱性较高,辨识和量化人为、自然多重干扰是减少人类干扰影响及制定喀斯特景观管理政策的重要依据。基于漓江流域喀斯特发育地貌特征,旨在建立包括地貌、水文、气候、生物、社会5类因素以及15个具体干扰指标的喀斯特综合干扰指数,并通过空间相关分析探究地理因子对综合干扰解释力以及因子与指标间交互作用力的特征。结果显示:(1)漓江流域中游综合干扰指数高于上下游,自然地形地貌本底以及不同类型喀斯特景观分布的地带性是分异的主要原因;(2)干扰等级为显著干扰,综合干扰指数为0.336,空间上呈现出东部与北部低、西部与南部高的分布特征,具有明显的空间异质性;(3)地理环境和社会经济因素对综合干扰具有较强解释力,采石采矿、各类灾害、生产活动等多项干扰指标以及海拔高度具有较强空间关联关系。评估了漓江流域喀斯特综合干扰并分析其空间特征,研究结果对喀斯特生态环境保护及景观资源可持续发展政策制定具有重要参考价值。Karst area has specifically geological structure.The process of dissolution leads to notable surface features and typical karst landscape.Ecosystems in the karst environment are quite vulnerable to climate change and human activities.Identifying and quantifying the disturbance by a karst disturbance index could help resource managers formulate approaches and policies to reduce these anthropogenic impacts.As a world natural heritage site,the unique karst landscape in the Lijiang River Basin,Guilin City,China is of great values for tourism,ecology,and scientific research.However,in the coupling system of human activities and natural environment,multi-dimensional interferences threatened the Lijiang River Basin.In terms of the characteristics of the Lijiang River Basin and previous studies,a comprehensive evaluation system comprising geomorphic,hydrological,climatic,biological,and social factors,as well as 15 specific disturbance indexes was designed.The karst comprehensive disturbance index was calculated.The spatial correlation analysis was used to explore the explanatory power of geographic factors to comprehensive disturbance and the characteristics of the interaction force between factors and indicators.The results showed that:(1)the comprehensive disturbance index in the middle reaches of Lijiang River Basin was higher than that in the upper and lower reaches.The natural landform background and the zonal distribution of different types of karst landscape were main reasons for the difference.(2)The disturbance level was significant disturbance,and the value of comprehensive disturbance index was 0.336.The spatial distribution features were low in the east and north,and high in the west and south,with obviously spatial heterogeneity.(3)The geographical environment and socio-economic factors had strong explanatory power to the comprehensive disturbance,and some indicators such as quarries and mining,various disasters,production activities,and altitude had strongly spatial correlation.The karst disturbance index m

关 键 词：漓江流域 喀斯特 干扰评价体系 空间交互作用 

分 类 号：P642.25[天文地球—工程地质学] P931.5[天文地球—地质矿产勘探]