基于国土空间三线融合的城市周边耕地分区保护研究  

Research on protection of cultivated land zones around main urban areas based on the spatial three-line demarcation

作　　者：钱凤魁[1,2,3] 项子璇 王贺兴 孙福军 QIAN Fengkui;XIANG Zixuan;WANG Hexing;SUN Fujun(College of Land and Environment,Shenyang Agricultural University,Shenyang 110161,China;Key Laboratory of Trinity Protection and Monitoring of Cultivated Land,Shenyang 110161,China;National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources,Shenyang 110161,China)

机构地区：[1]沈阳农业大学土地与环境学院,沈阳110161 [2]耕地立体保护与监测重点实验室,沈阳110161 [3]土肥资源高效利用国家工程研究中心,沈阳110161

出　　处：《农业资源与环境学报》2022年第6期1164-1173,共10页Journal of Agricultural Resources and Environment

基　　金：国家自然科学基金项目(42077149,41671329)。

摘　　要：城市周边耕地保护是国土空间规划的重要议题,对保障城市生态安全和粮食安全以及促进城市可持续发展具有重大意义。本研究通过协同量化耕地自然质量特征以及周边立地条件的关系,融合永久基本农田红线、生态红线、城镇开发边界三线划定要求,在土地评价与立地条件分析(LESA)理论基础上构建基于自然质量与立地条件特征的综合评价系统,建立鞍山市主城区周边耕地利用与保护分区,提出耕地保护分区管控措施。结果表明:鞍山市域主城区耕地可分为4类区域:永久基本农田区占80.70%,永久基本农田储备区占10.15%,城镇开发边界弹性用地区占3.98%,生态保育区占5.17%。评价结果综合反映城市主城区周边耕地质量的差异性及立地环境的稳定性,同时融合国土空间中三线划定的政策要求,对城市主城区周边耕地布局进行有效探索,划定了永久基本农田保护区,又在一定程度上满足了城镇开发边界弹性发展空间用地需求和生态红线管控要求。Protection of cultivated land around cities has been an important topic in the territorial spatial planning,which is of great significance in guaranteeing ecological and food security and contributing to the sustainable development of cities.In this study,we quantified the synergistic relationship between natural quality characteristics and surrounding site conditions of cultivated land,by integrating the three-line demarcation requirements of permanent basic cultivated land red line,ecological red line,and urban development boundary.On the basis of Land Evaluation and Site Assessment(LESA)theory,this study establishes a cultivated land suitability evaluation system based on the comprehensive evaluation system of natural quality and site conditions,establishes cultivated land use and protection zones around the main urban area of Anshan City,and puts forward the control measures of cultivated land protection zones.The results showed that the cultivated land in the main urban area of Anshan could be divided into four types:permanent basic cultivated land area accounting for 80.7%,permanent basic cultivated land reserve area accounting for 10.15%,urban development boundary flexible use area accounting for 3.98%,and ecological restoration area accounting for 5.17%.The evaluation results reflected the differences in the cultivated land quality and site environment stability and integrated the policy requirements of the three-line demarcation.The layout of cultivated land around the main urban area was effectively explored,and the permanent basic farmland protection zone was delineated,which met the requirements of flexible development of urban boundaries and control of ecological red line for effective land use.

关 键 词：耕地 LESA体系 适宜性评价 三线划定 城市主城区 鞍山市 

分 类 号：F323.211[经济管理—产业经济]