[1]ZANG Liang,LIANG Hongying,LIANG Wentao,et al.Cultivated Land Fragmentation and Affecting Factors of Lulong County Based on Landscape Pattern[J].Research of Soil and Water Conservation,2018,25(06):265-269,276.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 06
Page number:
265-269,276
Column:
Public date:
2018-10-26
- Title:
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Cultivated Land Fragmentation and Affecting Factors of Lulong County Based on Landscape Pattern
- Author(s):
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ZANG Liang1, LIANG Hongying1, LIANG Wentao2, ZHANG Chunli1
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1. Langfang Botai Real Estate Consulting and Evaluation Co. Ltd., Langfang, Hebei 065000, China;
2. Beijing Bolin Real Estate Assessment Co., Ltd., Beijing 100000, China
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- Keywords:
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fragmentation; cultivated land; geographically weighted regression; Lulong County
- CLC:
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F323.211
- DOI:
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- Abstract:
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We took Lulong County as an example, from the principle of landscape ecology average land area index (MPS). We constructed the index system,and evaluated the degree of cultivated land fragmentation in Lulong County based on the number of patch fragmentation index (FN), the average nearest neighbor distance (MNN), edge density index (ED), area weighted shape index (AWMSI) 5 landscape indexes, and then analyzed the influencing factors of cultivated land fragmentation by the geographically weighted regression model. The results showed that the arable land fragmentation in Lulong County was at a low level. The arable lands were seriously fragmented, and mainly distributed in 61 villages of all villages of Lulong County in the southwest, southeast and northern areas of Lulong County; the arable lands were moderately fragmented, mainly distributed in 232 villages in the southeast, southwest and central part of the county; the arable lands were slightly fragmented, mainly distributed in 289 villages in the central and southern parts of the county. The spatial correlation of cultivated land fragmentation in Lulong County was positive, and it also showed obvious spatial clustering characteristics. The influence degree of slope, residential land, river and traffic on the degree of cultivated land fragmentation had spatial nonstationarity. The influence degree of slope was mainly positive, and only a few areas had negative influence; the areas of the positive and negative impacts of residential land on arable land fragmentation accounted for about 50%, but the positive impact degree was small, and the negative effect was significant. The river dominated by positive effect, negative effect area mainly distributed in parts of southeast of the county. The areas of positive and negative influence of traffic factors on cultivated land fragmentation were roughly the same, and the impact intensity was similar.