干旱区研究2025，Vol.42Issue(3)：545-555,11.DOI:10.13866/j.azr.2025.03.14
宁夏土地利用碳排放时空演变及影响因素
The spatiotemporal evolution and influencing factors of carbon emissions from land use in Ningxia
摘要
Abstract
Land use change is a key factor affecting carbon emissions.Studying the spatiotemporal evolution of re-gional carbon emissions is significance for promoting reasonable emission reduction.Based on the measured data of land use carbon emissions in Ningxia at two scales of county(district)and 10 km grid from 1990 to 2020,com-bined with trend analysis,spatial autocorrelation analysis,and GTWR model,this study discusses the spatiotempo-ral variation characteristics and influencing factors of carbon emissions in Ningxia.The results show that:(1)Both scales of land use carbon emissions show an upward trend in time series,and construction land is the main source of carbon emissions in Ningxia.(2)There are differences in carbon emissions among different counties(districts),with Xingqing District and Lingwu City showing the most rapid growth in carbon emissions.(3)Carbon emis-sions show a distribution pattern of northwest region>central region>southern region in space.Grid-scale carbon emissions have significant spatial autocorrelation,and the agglomeration pattern of carbon emissions increases with time.(4)The proportion of construction land and human activities are important factors driving the spatial and temporal differentiation of carbon emissions in Ningxia,which has a significant positive effect and the im-pact intensity increases year by year.关键词
碳排放/时空格局/土地利用/GTWR/影响因素/宁夏Key words
carbon emissions/spatiotemporal pattern/land use/GTWR/influence factor/Ningxia引用本文复制引用
王微,杨淑婷,海云瑞..宁夏土地利用碳排放时空演变及影响因素[J].干旱区研究,2025,42(3):545-555,11.基金项目
宁夏自然科学基金项目(2023AAC03413) （2023AAC03413）
