水土保持研究2024，Vol.31Issue(1)：269-279,289,12.DOI:10.13869/j.cnki.rswc.2024.01.029
农业绿色转型约束下耕地利用生态效率时空分异特征及空间效应
Spatiotemporal Differentiation Characteristics and Spatial Effects of Ecological Efficiency of Cultivated Land Use Based on the Constraints of Agricultural Green Transformation
摘要
Abstract
[Objective]The aim of this study is to explore the spatiotemporal differentiation and spatial effects of ecological efficiency in cultivated land use in major grain producing areas based on the constraints of agri-cultural green transformation can provide theoretical support for formulating ecological farming policies.[Methods]The SBM-Undesirable model was applied to evaluate the cultivated land use ecological efficiency in the middle reaches of Yangtze River from 2005 to 2019,and its spatiotemporal characteristics and influen-cing factors were analyzed by combining the Dagum Gini coefficient and geotemporal weighted regression model.[Results](1)The overall ecological efficiency of cultivated land use in the main grain producing regions in the middle reaches of the Yangtze River increased from 0.425 to 0.674 from 2005 to 2019,with a large spatial difference in efficiency values but a decrease in the degree of difference.(2)The spatial non-equi-librium of the ecological efficiency of cultivated land use was significant and gradually decreasing,with the Gini coefficient decreasing from 0.265 to 0.185 and the degree of regional spatial disequilibrium was shown as Hunan＞Hubei＞Jiangxi.(3)Per capita GDP,effective irrigation rate and financial support for agriculture had a positive impact on the ecological efficiency of cultivated land use in the study area,while the multiple cropping index and urban-rural income gap had a negative impact.[Conclusion]The ecological efficiency of cultivated land use in the main grain producing areas in the middle reaches of the Yangtze River was on the rise,but the spatial imbalance was significant,and influenced by multiple factors such as nature,economy,society,technology,and policies.In the future,farmers should be motivated to produce green cultivated land and reduce pollution emissions,as well as to promote balanced green cultivated land use technologies to im-prove the overall resource allocation efficiency of the region.关键词
农业绿色转型/耕地利用/生态效率/时空分异特征/长江中游粮食主产区Key words
green transformation of agriculture/cultivated land use/ecological efficiency/spatiotemporal dif-ferentiation characteristics/main grain producing areas in the middle reaches of the Yangtze River分类
管理科学引用本文复制引用
吕添贵,付舒斐,胡晗,耿灿..农业绿色转型约束下耕地利用生态效率时空分异特征及空间效应[J].水土保持研究,2024,31(1):269-279,289,12.基金项目
国家自然科学基金项目(42261049) （42261049）
江西省自然科学基金项目(20232BAB203061). （20232BAB203061）
