[1]CAO Liping,LUO Zhijun,RAN Fengwei,et al.Distribution of Prime Farmland Based on Cultivated Land Quality and Spatial Agglomeration Pattern at County Scale[J].Research of Soil and Water Conservation,2018,25(04):349-355,364.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 04
Page number:
349-355,364
Column:
Public date:
2018-06-13
- Title:
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Distribution of Prime Farmland Based on Cultivated Land Quality and Spatial Agglomeration Pattern at County Scale
- Author(s):
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CAO Liping1,2, LUO Zhijun1,2, RAN Fengwei1,2, PIAN Qixing3, CAI Zhengmei1,2, ZHAO Yue1,2, ZHAO Jie1,2
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1. College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China;
2. Jiangxi Provincial Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China;
3. Land and Resources Bureau of Nanchang City in Jiangxi Province, Nanchang 330045, China
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- Keywords:
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prime farmland; quality of cultivated land; spatial agglomeration pattern; landscape pattern index; Yujiang County
- CLC:
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F301.24;F321.1
- DOI:
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- Abstract:
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In order to realize the specific requirements of setting basic farmland quantity, quality stabilization, centralized series and ecological balance in the new period, we took Yujiang County as an example to describe the quality of cultivated land, and constructed indexes for each land unit by four elements such as the spatial difference of cultivated land natural quality, location conditions, the stability of cultivated land and ecological security. The comprehensive score of cultivated land quality was calculated by combining multi-factor comprehensive evaluation with the progressive correction model. The quality of cultivated land was analyzed by using improved local spatial autocorrelation method in spatial agglomeration characteristics, so as to explore the county basic farmland delineation method. The result shows that: (1) the average value of comprehensive cultivated land in Yujiang County was 54.74, reaching up to moderate and upper levels generally; the high-quality cultivated land was located in the central valley plain area; (2) the comprehensive quality of cultivated land had a certain concentration in space, the spatial distribution of HH and HL was consistent with high value cultivated land. The patterns of LH and LL types were consistent with the distribution of low-value cultivated land; there is no significant concentration area, small area, and sporadic distribution; HH, HL and LH types were selected as the prime farmland; (3) through verifying this method by using the result of basic farmland demarcating based on comprehensive evaluation of farmland quality, landscape pattern index was introduced to compare two methods, the proposed method was not only optimized in the aspects of spatial contiguity and patch fragmentation, but also could more better achieve the goals of stability, high quality, concentration of basic farmland demarcation.