1986~2018年东北地区城镇扩展占用黑土资源时空变化特征及其影响因素  

The Characteristics of Spatial and Temporal Changes of Black Soil Resources Occupied by Urban Expansion in Northeast China and its Influencing Factors from 1986-2018

作　　者：袁承程 秦宁 李亚南 张海涛 张青璞 张定祥 YUAN Cheng-cheng;QIN Ning;LI Ya-nan;ZHANG Hai-tao;ZHANG Qing-pu;ZHANG Ding-xiang(College of Land Science and Technology,China Agricultural University,Beijing 100193,China;China Land Surveying and Planning Institute,Beijing 100035,China;The Key Laboratory of Carbon Neutralization and Land Space Optimization,Beijing 100035,China;Rural Social Development Center of the Ministry of Agriculture and Rural Affairs,Beijing 100122;Cultivated Land Quality Monitoring and Protection Center,Ministry of Agriculture and Rural Affairs,PRC,Beijing 100125,China)

机构地区：[1]中国农业大学土地科学与技术学院,北京100193 [2]中国国土勘测规划院,北京100035 [3]碳中和与国土空间优化重点实验室,北京100035 [4]农业农村部农村社会事业发展中心,北京100122 [5]农业农村部耕地质量监测保护中心,北京100125

出　　处：《土壤通报》2024年第3期610-621,共12页Chinese Journal of Soil Science

基　　金：碳中和与国土空间优化重点实验室开放基金(2021CNLSO1001);国家自然科学青年基金(42001224)资助。

摘　　要：【目的】分析东北地区城镇扩展占用黑土资源的时空变化特征及其影响因素,为黑土资源保护提供对策建议。【方法】构建城镇扩展占用黑土资源的速率和强度指标,应用空间自相关和地理探测器方法,分析1986~2018年东北地区城镇扩展占用黑土资源的时空特征与影响因素。【结果】①1986~2018年东北地区城镇扩展占用黑土资源总面积为4953.47km^(2),其中,2009~2018年占用黑土资源总面积为1584.75km^(2),年均占用速率较1986~2009年增加了29.62km^(2)a^(-1);②2009~2018年东北地区城镇扩展占用黑土资源的年均强度值为0.58,较1986~2009年提升了0.04;③东北地区城镇扩展占用黑土资源速率和强度在空间上具有高度集聚性,且占用强度的集聚性整体高于占用速率;④经济越发达、人口密度越高、距离道路越近的地区城镇扩展占用黑土资源速率越大,地级城市周边低海拔缓坡地带的黑土资源更容易被占用。【结论】东北地区城镇扩展占用黑土资源速率持续增加且呈现两极分化特征,东北地区城镇新增建设用地超过一半来源于黑土资源,且比例不断扩大,其中社会经济、可达性、自然条件是东北地区城镇扩展占用黑土资源的主要影响因素。Objective The paper aimed to analyze the characteristics of spatial and temporal changes of Black Soil resources occupied by urban expansion in Northeast China and its influencing factors,and to provide countermeasure suggestions for the protection of Black Soil resources.Method The rate and intensity indicators of urban expansion occupying Black Soil resources were constructed,and spatial autocorrelation and geographic probe methods were applied to analyze the spatial and temporal characteristics and influencing factors of urban expansion occupying Black Soil resources in Northeast China from 1986-2018.Result①The total area of Black Soil resources occupied by urban expansion in Northeast China from 1986 to 2018 was 4953.47 km^(2).The total area occupied by Black Soil resources from 2009 to 2018 was 1584.75 km^(2),and the annual average of 1986-2009 expansion rate increased by 29.62 km^(2)a^(-1).②The average annual intensity value of urban expansion occupying Black Soil resources in Northeast China from 2009 to 2018 was 0.58,which increased by 0.04 compared with 1986–2009.④The rate and intensity of urban expansion occupying Black Soil resources in Northeast China were spatially.④The more developed the economy,the higher the population density,and the closer the roads.The greater the rate of occupation of Black Soil resources by urban expansion,and the Black Soil resources in the low-altitude gentle slopes around prefecture-level cities were more easily occupied.Conclusion The rate of occupation of Black Soil resources by urban expansion in Northeast China continues to increase and shows polarization,and more than half of the new construction land in Northeast China come from Black Soil resources,and the proportion is expanding,among which socio-economic,accessibility,and natural conditions are the main influencing factors for the occupation of Black Soil resources by urban expansion in Northeast China.

关 键 词：城镇扩展 黑土资源 时空变化特征 影响因素 东北地区 

分 类 号：S158.9[农业科学—土壤学]