高标准基本农田建设评价模型的构建及建设时序的确定

    Development of evaluation model and determination of its construction sequence for well-facilitied capital farmland

    • 摘要: 高标准基本农田建设时序既要考虑建设的可行性,也要考虑建成后的稳定性。该文以黑龙江省富锦市为研究区,分别从自然质量条件、工程建设条件、经济社会条件和区位条件、生态条件、建设用地扩张动力等方面构建建设可行性和空间稳定性评价模型,运用理想解逼近法测算各评价单元的建设可行性和空间稳定性,最后用四象限法确定高标准基本农田建设时序。结果表明:富锦市高标准基本农田建设高度可行区域面积为13.18万hm2,中度可行区域面积22.72万 hm2,低度可行区域面积22.18万hm2;高度稳定区域面积为7.58万 hm2,中度稳定面积为27.73万hm2,低度稳定区域面积为22.77万hm2。基于空间稳定性优先的目标导向,分别确定国营农场辖区和地方政府辖区的建设时序。其中,国营农场辖区优先建设区域面积为6.75万 hm2,主要分布在七星农场、创业农场、红卫农场、前进农场和青龙山农场;地方政府辖区优先建设区域面积为4.41万 hm2,主要分布在二龙山镇、锦山镇、头林镇和宏胜镇。该研究结果可为高标准基本农田建设规划编制提供科学依据。

       

      Abstract: Abstract: As the material basis for the development of modern agriculture, well-facilitated capital farmland is the key to ensuring food safety in China By improving the comprehensive productivity of cultivated land and agricultural production conditions, the construction of well-facilitated capital farmland and its effective management and efficient utilization has great significance for food security and the development of modern agriculture. Taking Fujin city of Heilongjiang Province as an example, the paper conducted a study on the well-facilitated capital farmland construction sequence. The main conclusions of the study were as follows: It introduces the Four Quadrant model by a feasibility and spatial stability analysis on a well-facilitated capital farmland construction sequence. It comprehensively determined a well-facilitated capital farmland construction sequence combined with the construction scale and goal orientation. Evaluation of the construction feasibility is mainly used to reflect the feasibility of a well-facilitated capital farmland construction sequence. The evaluation index was selected from three aspects including natural quality, engineering construction, and economic society. It mainly included thickness of effective soil, field area, and the later maintenance funding levels. Spatial stability evaluation is mainly used to reflect the spatial stability after well-facilitated capital farmland is constructed. It selected the distance to the county seat, the distance to the township, the distance to the main roads, the distance to potential geological hazards, population density, local finance income, and other indicators from three aspects including location, ecology, and the construction land expansion force. The cultivated land to be evaluated was divided into three levels including high feasibility, medium feasibility, and low-grade feasibility based on the well-facilitated capital farmland construction feasibility evaluation model. The area of the highly feasible region was 13.18×104hm2 (22.69% of the total evaluation area), it was mainly in the state farms especially in the Qixing Farm and the Daxing Farm. The moderate feasible area was 22.72×104 hm2 (39.13% of the total evaluation area). It was distributed in the state farm and local government areas and the area was equal. It was mainly distributed in the Daxing Farm and the Qixing Farm of the state farms and Jinshan town of the local government; The low feasible area was 22.18×104hm2 (38.18% of the total evaluation area), all are located in the local government's area except for a little distribution in Qianjin Farm. On the issue of space stability, the area of highly stability, area of moderate stability, and area of low stability of well-facilitated capital farmland construction in Fujin City was 7.58×104hm2, 27.73×104hm2 and 22.77×104 hm2. It occupied respectively 13.06%, 47.73%, and 39.21% of the evaluation area. Highly stable areas were mainly distributed in the farm on the east of Fujin city; moderate stability areas were mainly distributed in the local towns in the south and west of Fujin city; and low stability areas were mainly distributed in the township in the western northern and central areas of Fujin city. The unstable areas were mainly distributed in the Songhua River, Sanhuanpao Nature Reserve, and some important areas of the rivers and city construction expansion area. It was coupled to the feasibility and spatial stability of well-facilitated capital farmland construction by the Four Quadrant model. It determined the well-facilitated capital farmland construction sequence based on the goal orientation of spatial stability priority. Qixing Farm, Hongwei Farm, Qianjin Farm, and Qinglongshan Farm are priority areas of well-facilitated capital farmland construction.

       

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