摘要
永久基本农田储备区是永久基本农田的直接补划来源,划定并建设永久基本农田储备区对于稳定永久基本农田保护区格局,保障国家粮食安全具有重要意义。该研究从适宜性、集聚性、稳定性三个维度构建永久基本农田储备区评价体系,在一般耕地区开展综合质量评价基础上划定永久基本农田储备区;进一步结合三维魔方空间分类方法,制定了永久基本农田储备区的整治分区方案,并以江苏省常州市金坛区开展了方法实证。结果表明:1)从约束准则和评价准则两方面构建永久基本农田储备区划定准则,有利于提高永久基本农田储备区筛选的科学性和合理性;2)基于耕地适宜性、集聚性、稳定性指标综合评价,在研究区划定了永久基本农田储备区7465.58 hm^(2);3)结合耕地综合质量和空间分类方法可将永久基本农田储备区划分为综合利用潜力区、生产改善潜力区、发展提升潜力区、生产改善-发展提升潜力区等4种类型,针对不同类型区实施相应的整治措施,可进一步提升永久基本农田储备区的质量,为后续永久基本农田补划提供坚实的基础。
Permanent prime farmland reserve areas have served as the direct supplementary sources of capital cultivated land.This type of high-quality cultivated land can widely be expected to extend for the ecological protection,and the sustainable“balance of occupation and supplement”.Meanwhile,the reserve resources of cultivated land have been posed a great challenge on the occupation of new construction land,particularly with the recent acceleration of industrialization and urbanization.Therefore,it is very necessary to launch the spatial zoning of permanent prime farmland reserve areas,further to ensure national food security,quantity and quality stability of an optimal land pattern under an ecological protection for the high-quality cultivated lands.In this study,an evaluation system of permanent prime farmland reserve area was established from three dimensions of suitability,cluster and stability.Taking 2030 as the target year,a risk index of cultivated land conversion was also introduced to maximize the land use benefits.The policy requirements were firstly sorted to clarify the connotation of permanent prime farmland reserve areas.A FLUS model was then selected to estimate the land use structure under the multiple objectives of food security,economic development,and ecological protection.A conversion probability of cultivated land was also combined to predict the possibility of conversion of cultivated land to other land types,in order to achieve the stability of permanent prime farmland reserve areas during the conversion of cultivated land.A weighted superposition was conducted to evaluate the comprehensive quality of general cultivated land,where the permanent prime farmland reserve areas were classified,according to the evaluation.A three-dimensional Rubik’s cube spatial classification was also selected to divide into some consolidation zones.As such,the Jintan District of Changzhou City of Jiangsu Province was taken as a case study.The results showed as follows.1)Two types of delimitation criteria(constr
作者
翁睿
金晓斌
张晓琳
韩博
顾铮鸣
周寅康
Weng Rui;Jin Xiaobin;Zhang Xiaolin;Han Bo;Gu Zhengming;Zhou Yinkang(School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210023,China;The Key Laboratory of Carbon Neutrality and Territory Optimization,Ministry of Natural Resources,Nanjing 210023,China;Jiangsu Province Land Development and Consolidation Technology Engineering Center,Nanjing 210023,China)
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2022年第2期269-278,F0003,共11页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金项目(41971234,41971235)。
关键词
土地利用
区划
评价
永久基本农田储备区
金坛
land use
zoning
evaluation
permanent prime farmland reserve areas
Jintan
