中国生态用地碳汇时空演进及综合分区研究  

Temporal-spatial Evolution and Comprehensive Zoning of Carbon Absorption of Ecological Land in China

作　　者：高威 李强[1,2] 蒲雨池 吕军骁 江婉婷 GAO Wei;LI Qiang;PU Yuchi;LÜJunxiao;JIANG Wanting(School of Urban Economics and Public Administration,Capital University of Economics and Business,Beijing 10070,P.R.China;Beijing Key Laboratory of Megaregions Sustainable Development Modelling,Beijing 100070,P.R.China)

机构地区：[1]首都经济贸易大学城市经济与公共管理学院,北京100070 [2]城市群系统演化与可持续发展的决策模拟北京市重点实验室,北京100070

出　　处：《生态环境学报》2023年第9期1537-1551,共15页Ecology and Environmental Sciences

基　　金：教育部哲学社会科学研究后期资助重大项目(19JHQ013);首都经济贸易大学青年学术创新团队项目(QNTD202209)。

摘　　要：生态用地碳汇为从增汇角度实现“双碳”目标提供重要途径,综合分区优化对促进生态保护与经济高质量发展融合具有重要指导意义。在测算中国31省(市、区)各类生态用地碳汇总量及单位面积碳汇量的基础上,运用探索性空间数据分析、核密度估计,探究2000-2020年生态用地碳汇空间集聚特征和时空演进趋势,并基于碳汇与绿色GDP的脱钩关系和协调状态构建综合分区,结合重要生态功能区分布开展优化治理。研究表明,(1)研究期内生态用地碳汇总量呈波动上升态势,年均增速为0.077%;在空间上呈显著的集聚效应,湖南、贵州、广西属于高-高集聚区,形成高值辐射中心,山东属于低-低类型,为低值塌陷区。(2)生态用地碳汇总量空间差异明显,高碳汇区碳汇能力强于其他地区;核密度估计显示高碳汇区和低碳汇区碳汇呈增加趋势,中碳汇区保持相对稳定,且三者均存在区内集聚特征。(3)单位国土面积生态用地碳汇与单位生态用地面积碳汇均以高-高集聚类型和低-低集聚类型为主,呈现出较强的空间集聚特征,尤其南部地区的省(市、区)具有单位面积生态用地碳汇优势和潜力。(4)生态用地碳汇与绿色GDP两者以脱钩和多元协调状态为主,大部分省(市、区)单位面积生态用地碳汇处于多元协调区,重要生态功能区的碳汇积极作用显现。研究结果为改善生态用地碳汇能力和潜力,推进生态领域实现“双碳”目标提供有益参考。Carbon absorption of ecological land provides an important way to achieve the goal of“double carbon”from the perspective of increasing carbon absorption,and comprehensive zoning optimization has important guiding significance for promoting the integration of ecological protection and high-quality economic development.Based on the calculation of total carbon absorption and carbon absorption per unit area of various ecological land in 31 provinces(cities,districts)of China,the spatial agglomeration characteristics and temporal and spatial evolution trend of ecological land carbon absorption from 2000 to 2020 were explored by using exploratory spatial data analysis and nuclear density estimation.Based on the decoupling relationship and coordination between carbon absorption and Green GDP,comprehensive zoning was constructed,and optimal governance was carried out in combination with the distribution of important ecological functional areas.The results show that(1)the total carbon absorption of ecological land fluctuated and increased during the study period,with an average annual growth rate of 0.077%;there was a significant agglomeration effect in space.Hunan,Guizhou and Guangxi belonged to high-high agglomeration areas,forming high-value radiation centers,while Shandong belonged to low-low type and is a low-value subsidence area.(2)The total amount of carbon absorption in ecological land was obviously different in space,and the carbon absorption capacity in the high carbon absorption area was stronger than that in other areas.The estimation of nuclear density showed that the carbon absorption in the high carbon absorption area and the low carbon absorption area was increasing,and that in the middle carbon absorption area remained relatively stable,and all three showed the characteristics of regional agglomeration.(3)The carbon absorption of ecological land per unit land area and the carbon absorption of ecological land per unit land area largely belonged to the high-high and low-low agglomeration types,showing

关 键 词：生态用地 碳汇 演进趋势 探索性空间数据分析 脱钩模型 综合分区 

分 类 号：X14[环境科学与工程—环境科学] X22X16