Precipitation and soil texture dominate the spatiotemporal changes in the carbon-water coupling coordination in Taihang Mountains, China  

降水与土壤质地主导了中国太行山地区水-碳耦合协调关系的时空变化

作　　者：LI Xin CHEN Yanmei LI Suyan SUN Xiangyang LIU Qi WANG Hongzhou 李鑫;陈艳梅;李素艳;孙向阳;刘祺;王宏宙

机构地区：[1]Key Laboratory of Forest Cultivation and Protection of Ministry of Education,College of Forestry,Beijing Forestry University,Beijing 100083,China [2]School of Geographical Sciences,Hebei Normal University,Shijiazhuang 050024,China [3]School of National Safety and Emergency Management,Beijing Normal University,Beijing 100875,China

出　　处：《Journal of Geographical Sciences》2025年第3期521-551,共31页地理学报(英文版)

基　　金：Special Program for Survey of National Basic Scientific and Technological Resources,No.2021FY00802。

摘　　要：The Taihang Mountains in North China are an important carbon-water ecosystem service supply area.Understanding the coupling effect and influencing mechanisms of mountain carbon sequestration as well as water conservation is essential for regional eco-logical restoration and sustainable development.In this study,we utilized models such as the coupled coordination degree model,the random forest and Geodetector to analyze the spa-tio-temporal changes as well as driving factors of carbon sequestration-water conservation coupling coordination in the Taihang Mountains.The results show that:(1)From 1990 to 2020,the carbon sequestration and water conservation capacity of the Taihang Mountains exhibited a spatial pattern with higher values in the southeast and central regions,while lower values in the northwest region.(2)The average coupling coordination degree from 1990 to 2020 was O.23,which was overall low,with a fluctuating decreasing-rising-decreasing trend over time.The coupling coordination degree exhibited a pattern that is high in the middle and low in the periphery,with a fluctuating distribution that initially decreases and then increases with the increasing altitude.The overall trend of coupling coordination is degradation,with concen-trated degradation in the northwest mountainous regions.(3)Precipitation and soil texture were identified as the main driving factors influencing coupling coordination,with the interac-tion between precipitation and soil sand content showing the strongest explanatory power,while that among topography,vegetation and human activities had relatively low explanatory power.Therefore,enhanced protection and the continuous monitoring of vegetation and soil environments in the Taihang Mountains are essential,with particular emphasis on ecological restoration in areas experiencing a persistent degradation of carbon-water coupling.This study can provide assistance in monitoring and managing carbon sink and water resources in the mountains,meanwhile mitigating potential adverse impacts on h

关 键 词：carbon sequestration water conservation coupling coordination relationships driving factors Tai-hangMountains 

分 类 号：TV213.4[水利工程—水文学及水资源] X171.4[环境科学与工程—环境科学]