水力发电学报2026，Vol.45Issue(2)：68-83,16.DOI:10.11660/slfdxb.20260206
水电工程库周碳储量时空演变及驱动因素分析
Spatiotemporal evolution and driving factors of carbon storage in reservoir rim regions of hydropower projects
摘要
Abstract
This study aims to verify the low-carbon attributes of hydropower projects.Focusing on the Pubugou hydropower project commissioned in late 2010 on the mainstream of the middle Dadu River,we examine the spatiotemporal evolution and driving mechanisms of carbon storage in the reservoir rim region using the InVEST model and Geodetector,based on its 1990-2023 land use data.The results indicate the region's land use underwent three distinct stages in the study period-natural succession,engineering disturbance,and ecological adjustment.Forest land consistently remained dominant in land cover type,with its proportion gradually increasing up to 70.2%.Spatially,carbon storage featured a pattern of being enriched at higher elevations and sparse at lower elevations;Temporally,it grew at an average annual rate of 0.11%,verifying carbon sequestration has been enhanced in the region since the completion of this project.Forest land acted as the core contributor to carbon sequestration.We also find that natural factors were dominant in the spatial differentiation,while socioeconomic factors imposed relatively weak influences.The interaction of dual factors further enhanced this spatial differentiation.These findings provide a novel perspective for assessing the low-carbon benefits of hydropower projects in alpine valley regions,and lay a basis for ecological management of reservoir rims.关键词
环境科学/水电工程/碳储量/土地利用变化/InVEST模型/地理探测器Key words
environmental science/hydropower project/carbon storage/land use change/InVEST model/geodetector分类
资源环境引用本文复制引用
马芳平,彭放,冯兴国,胡静,王皓冉,何文艳,张红..水电工程库周碳储量时空演变及驱动因素分析[J].水力发电学报,2026,45(2):68-83,16.基金项目
国家重点研发计划项目(2022YFB3207400) （2022YFB3207400）
成都市科技局揭榜挂帅项目(N0.2025-YF09-00037-SN) （N0.2025-YF09-00037-SN）
