2005—2020年黑龙江省松嫩平原耕地低碳利用效率时空格局演变及影响因素  

Spatiotemporal Evolution Pattern and Influencing Factors of Low Carbon Utilization Efficiency of Cultivated Land in Songnen Plain,Heilongjiang Province During 2005—2020

作　　者：张慧[1] 何正弘 张力文 魏婉桐 王诗雨 马全旭 Zhang Hui;He Zhenghong;Zhang Liwen;Wei Wantong;Wang Shiyu;Ma Quanxu(School of Public Administration and Law,Northeast Agricultural University,Harbin,Heilongjiang 150000,China;Heilongjiang Provinciol Institute of Land and Space,Harbin,Heilongjiang 150000,China;College of Lige Sciences,Shanri Agricultural,Paigu,Shanxi 030801)

机构地区：[1]东北农业大学公共管理与法学院,黑龙江哈尔滨150000 [2]黑龙江省国土空间规划研究院,黑龙江哈尔滨150000 [3]山西农业大学生命科学学院,山西太谷030801

出　　处：《水土保持通报》2024年第3期335-346,共12页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金“含油气盆地地表典型烃蚀变高光谱遥感响应机理研究”(41402297);黑龙江省博士后资助项目“黑龙江省松嫩平原土壤砷空间分异特征及驱动力分析”(LBH-Z12032)。

摘　　要：[目的]探究黑龙江省松嫩平原地区耕地低碳利用效率时空演变规律及影响因素,为保障国家粮食安全和低碳减排,实现农业可持续发展提供科学依据。[方法]借助超效率SBM模型测度2005—2020年黑龙江省松嫩平原地区33个县(市)耕地低碳利用效率,利用空间自相关和核密度估计方法分析各县(市)耕地低碳利用效率的时空格局演变特征,进而采用地理加权回归模型探究其影响因素。[结果](1)研究期内黑龙江省松嫩平原地区耕地低碳利用效率呈“升—降—升”演变态势,均值为0.80,未达到最有效生产的前沿。(2)从空间维度看,耕地低碳利用效率存在显著的正向空间相关性,且局部呈较强的高低值集聚分布态势,热点多核极化现象显著,主要分布于区域北部和南部;从时间维度看,耕地低碳利用效率表现出不同程度的极化特征,且内部差异呈逐渐缩小的演变趋势。(3)从影响因素看,人均播种面积、单位耕地面积化肥使用量、农村居民人均可支配收入和涉农支出对耕地低碳利用效率具有正向影响,复种指数、单位耕地面积机械使用量及城镇化率对效率呈负向影响,人均GDP对耕地低碳利用效率在不同年份影响程度和方向存在差异。[结论]黑龙江省松嫩平原地区耕地低碳利用效率整体呈上升趋势,且区域间存在明显差异,未来应优化资源配置效率,建立区域协同机制,发挥热点区域示范作用,助推各区域耕地低碳利用效率的提升。[Objective]The spatio-temporal evolution pattern and influencing factors of low-carbon utilization efficiency of cultivated land in the Songnen Plain region of Heilongjiang Province were determined in order to provide a scientific basis for ensuring national food security and low-carbon emission reduction,and to realize sustainable agricultural development.[Methods]This study used the super-efficiency SBM model to measure the low-carbon utilization efficiency of cultivated land in 33 counties(cities)in the Songnen Plain region of Heilongjiang Province from 2005 to 2020.Spatial autocorrelation and kernel density methods were used to analyze the spatiotemporal evolution characteristics and pattern of low-carbon utilization efficiency of cultivated land in various counties(cities).A geographically weighted regression model was use to determine the influencing factors of low-carbon utilization.[Results](1)During the research period,the low-carbon utilization efficiency of cultivated land in the Songnen Plain region of Heilongjiang Province exhibited an increasing-decreasing-increasing pattern,with an average value of 0.80,which did not reach the value needed for the most effective production;(2)There was a significant positive spatial correlation with regard to the low-carbon utilization efficiency of cultivated land,and there were strong clustering distribution trends of high and low values in some areas.Multi-core polarization of hot spots was significant,mainly located in the northern and southern regions.Over time,the low-carbon utilization efficiency of cultivated land exhibited varying degrees of polarization characteristics,and the internal differences showed a gradual narrowing evolution trend;(3)From the perspective of influencing factors,the per capita sown area,the amount of fertilizer used per unit of cultivated land,the per capita disposable income of rural residents,and agricultural expenses had positive impacts on the low-carbon utilization efficiency of cultivated land.The multiple cropping index,the

关 键 词：耕地利用效率 低碳 时空演变 松嫩平原 

分 类 号：F301.24[经济管理—产业经济]