“双碳”目标视角下耕地利用生态效率测度及其时空特征——以长江中下游粮食主产区为例  

Measurement of Eco-Efficiency for Cultivated Land Use and Its Spatial-Temporal Characteristics from the Perspective of“Double Carbon”Target:Taking the Main Grain Producing Areas in the Mid and Lower Reaches of the Yangtze River as an Example

作　　者：范正根[1] 邓超 范雨琪 刘蒙罢 卢华 张普伟 FAN Zhenggen;DENG Chao;FAN Yuqi;LIU Mengba;LU Hua;ZHANG Puwei(College of City Construction,Jiangxi Normal University,Nanchang Jiangxi 330022,China;College of Public Administration,Huazhong Agriculture University,Wuhan Hubei 430070,China;School of Applied Economics,Jiangxi University of Finance and Economics,Nanchang Jiangxi 330013,China)

机构地区：[1]江西师范大学城市建设学院,江西南昌330022 [2]华中农业大学公共管理学院,湖北武汉430070 [3]江西财经大学应用经济学院,江西南昌330013

出　　处：《生态经济》2023年第11期119-127,共9页Ecological Economy

基　　金：国家自然科学基金青年项目“农户异质性视角下农地流转和地权稳定与耕地休养行为研究”(71803071);国家自然科学基金项目“服务城市老人的乡村康养旅游业高质量发展:动力融合、行为机制及全要素效率”(72064020)。

摘　　要：基于“双碳”目标视角下的耕地利用生态效率内涵构建其评价指标体系,运用非期望产出超效率SBM模型测度2007—2020年长江中下游粮食主产区71个市(州)耕地利用生态效率,并综合运用非参数核密度估计和探索性空间数据分析刻画其时空演变特征。研究表明:(1)时序演变方面,研究区域各省耕地利用生态效率值呈现出“高位波动、高位下降、低位波动、低位下降”四种显著的分异现象。(2)区域差异方面,耕地利用生态效率整体上呈现先降后升、差异扩大、两极分化的演变特征。(3)空间格局方面,耕地利用生态效率在全域空间分布上存在显著正向空间自相关性;在局域上存在显著的集聚现象并表现为“均衡扩展、结核分布”的特征。Based on the connotation of cultivated land use eco-efficiency,this paper constructs its evaluation index system,uses the Super-SBM-Undesirable model to measure the cultivated land use eco-efficiency in 71 cities(prefectures)in the main grain producing areas in the mid and lower reaches of the Yangtze River from 2007 to 2020,and comprehensively uses nonparametric kernel density estimation and exploratory spatial data analysis to characterize its spatial-temporal evolution characteristics.The results show that:(1)In terms of time series evolution,the cultivated land use eco-efficiency of cultivated land use in all provinces in the study area presents four significant differentiation phenomena of“high-fluctuation,high-decline,low-fluctuation and low-decline”.(2)In terms of regional differences,the eco-efficiency of cultivated land use shows the evolution characteristics of first falling and then rising,widening differences and polarization.(3)In terms of spatial pattern,there is a significant positive spatial autocorrelation in the global spatial distribution of cultivated land use eco-efficiency;and there is a significant agglomeration phenomenon in the local area,which is characterized by“balanced expansion and nodule distribution”.

关 键 词：耕地利用 耕地利用生态效率 非期望超效率SBM模型 时空演变 长江中下游粮食主产区 

分 类 号：F323.211[经济管理—产业经济] X322[环境科学与工程—环境工程]