基于多规合一的基本农田划定研究——以江西省余江县为例

城市总体规划、土地利用总体规划、环境保护规划之间的矛盾极大地影响基本农田的稳定性和长久性,不利于粮食安全和经济发展。论文以江西省余江县为研究区,在协调各规划关系的基础上,将城市周边自然质量等高于研究区平均水平的耕地优先划入基本农田;其他耕地,选取农用地自然质量等、耕地到农村居民点的距离、耕地到城镇的距离、耕地到交通主干线的距离、空间连片性、田块规整度等6个评价指标构建耕地入选基本农田评价的指标体系,提出基本农田划定综合评价方法;根据土地利用总体规划下达的基本农田保护指标确定最终划入基本农田的面积。结果表明：城市周边划定基本农田面积为4 474.65 hm²,其他耕地中划定的基本农田面积为24 045.13 hm²,总计28 519.78 hm²,主要分布在余江县中部河谷平原区。通过与现行基本农田对比分析：保留地块综合最优,是区域基本农田划定的首选对象;调入地块不仅在质量状况、区位条件、空间形态上均较优,而且有利于优化城市空间格局;调出地块规整度较低、集中连片性较弱、污染或灾毁严重、与城市总体规划和土地利用总体规划共同建设用地重叠。研究划定的基本农田不仅有利于“多规合一”,而且为丰富基本农田划定研究提供思路借鉴。

The Research of Prime Farmland Demarcation Based on Multi-planning-in-one: A Case Study of Yujiang County,Jiangxi Province

The contradiction between urban master planning, land use planning, environmental protection planning greatly affect the stability and longevity of prime farmland. This is not conducive to food security and economic development. Taking Yujiang County, Jiangxi Province as an example, the paper demarcates the prime farmland on the basis of coordinating the relationship of these plannings. The cultivated land around the city whose natural quality is higher than the average level of the study area was classified into prime farmland. For the other cultivated land, a cultivated land quality comprehensive evaluation system was constructed with evaluation indicators including natural quality, the distance to countryside, the distance to city, the distance to traffic trunk line, spatially contiguous and regular degree. A comprehensive evaluation method for basic farmland is proposed. According to the index of prime farmland protection in land use planning, the final area of prime farmland was determined. The result shows that: The final area of designated prime farmland around the city is 4 474.65 hm², the area of prime farmland designated from other cultivated land is 24 045.13 hm², and the total area of prime farmland is 28 519.78 hm², mainly in the river valley and plains in the central regions of Yujiang County. Comparing with the existing prime farmland, the unchanged prime farmlands are the best to be demarcated into prime farmland. The prime farmlands which are transferred into prime farmland not only have better natural quality, location condition and spatial pattern, but also are conducive to the optimization of the city spatial pattern. The farmlands which are transferred out have low regular degree or spatially contiguous, serious pollution or overlap with construction land in urban master planning and land use planning. The method proposed in this paper can not only promote the space convergence about Multi-planning-in-one, but also provide a new idea for the prime farmland delimitation.