[1]DONG Fei,ZHAO Wei.Delimitation of Construction Area of High-Standard Primary Farmland—Taking Nan'an District of Chongqing City as an Example[J].Research of Soil and Water Conservation,2020,27(02):344-349,356.
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Delimitation of Construction Area of High-Standard Primary Farmland—Taking Nan'an District of Chongqing City as an Example
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 02
Page number:
344-349,356
Column:
Public date:
2020-03-30
- Title:
- Delimitation of Construction Area of High-Standard Primary Farmland—Taking Nan'an District of Chongqing City as an Example
- Keywords:
- high-standard primary farmland; mountain cities; spatial agglomeration pattern; modification method; classification implementation; Nan'an District of Chongqing City
- CLC:
- F323.21
- DOI:
- -
- Abstract:
- In order to thoroughly implement the Rural Revitalization Strategy, guarantee national food security and protect the ecological environment, and solve the currently faced practical problems such as the reduction of the amount of cultivated land and the decline of quality, the study on the implementation of special protection of basic farmland on cultivated land and regional delimitation of high-standard basic farmland construction was carried out. Taking the Nan'an District of Chongqing City, a typical mountain city, as an example, we adopted the location accessibility correction coefficient and development stability based on the comprehensive evaluation of the natural quality of cultivated land from four aspects: soil quality, site conditions, infrastructure and spatial form. The correction coefficient of human factors were used to correct the natural quality of cultivated land step by step, to explore the delimitation model of high standard basic farmland construction area, and to guide the practice of special protection of cultivated land. The results show that the average score of comprehensive quality of cultivated land in the Nan'an is 42.7, and the overall quality level of the overall cultivated land is general; according to the comprehensive quality evaluation results of the cultivated land, the limiting factors of the comprehensive analysis area, and the spatial agglomeration pattern analysis, the high standard basic farmland is defined as 1 280.89 hm2, and mainly distributes in Yinglong, Changshengqiao and Guangyang Town in the eastern research area, accounting for 38.69% of the total cultivated land; the comprehensive quality score of basic farmland is 51.5; the delimitation and protection of high-standard basic farmland should be tailored to local conditions, and implemented based on a classification and regional characteristics; in the west of the study area, the quality of cultivated land should be improved, and the protection of cultivated land should be emphasized while protecting the ecological security; in the middle area within the scope of urban expansion, the relationship between urban development and cultivated land protection should be coordinated; the eastern area is the main grain production area, the non-agricultural land should be conversed to farmland, more attention should be paid to the construction and protection of basic farmland quality, implement large-scale production, and increase grain output.
- References:
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Last Update:
2020-02-25