[1]ZHANG Miaomiao,XIAO Wu,XU Jianfei,et al.Spatiotemporal Processes and Relationships Between Land Consolidation and Non-point Source Pollution in Chaohu Lake Basin[J].Research of Soil and Water Conservation,2021,28(01):360-367.
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Spatiotemporal Processes and Relationships Between Land Consolidation and Non-point Source Pollution in Chaohu Lake Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 01
Page number:
360-367
Column:
Public date:
2021-01-10
- Title:
- Spatiotemporal Processes and Relationships Between Land Consolidation and Non-point Source Pollution in Chaohu Lake Basin
- CLC:
- F301.2; X52
- DOI:
- -
- Abstract:
- In order to ensure the safety of farmland and the smooth progress of ecological land consolidation, Chaohu Lake was taken as the research object. The research used SWAT model to simulate the spatial distribution of non-point source pollution(TN and TP)from 2000 to 2010, and used Geographic Weighted Regression(GWR)model to assess the impact of 2609 land consolidation projects on the non-point source pollution. The results showed that:(1)non-point source pollution in the Chaohu Lake Basin coexisted with recovery and deterioration, and the overall pollution level had decreased;(2)there were spatial differences in the area of non-point source pollution change between 2000—2005 and 2005—2010, which was related to the high terrain in the south and the spatial layout of agricultural farming areas;(3)during the study period, the R2 of land consolidation and non-point source pollution(TN and TP)was between 0.71 and 0.74, which was negatively correlated. On the one hand, the implementation of the four major projects in land improvement has reduced the fragmentation of farmland and the intensive agricultural activities have also reduced the amount of fertilizer use. On the other hand, the implementation of land consolidation has led to the landing of non-point source pollution control projects, resulting in a remarkable effect of comprehensive management. This paper is expected to provide reference for similar areas to carry out ecological land remediation focusing on non-point source pollution control.
- References:
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Last Update:
2021-01-15