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| Applying the “industrial controlling pollution” mode to control the discharge of nitrogen from agricultural non-point sources in hilly areas |
| Received:March 27, 2021 |
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| KeyWord:hilly area;agricultural non-point source pollution;nitrogen;industrial controlling pollution |
| Author Name | Affiliation | E-mail | | LIU Guanglong | College of Resources & Environment, Huazhong Agricultural University, State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Wuhan 430070, China | | | LI Tao | Shiyan Agricultural Ecological Environment Protection Station, Shiyan 442000, China | | | XUE Lihong | Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China | | | FAN Dan | Hubei Agricultural Ecological Environment Protection Station, Wuhan 430070, China | | | DAI Zhigang | Hubei General Station of Cultivated Land Quality and Fertilizer, Wuhan 430070, China | | | GAN Xiaodong | Agricultural and Rural Bureau of Zhuxi County, Shiyan City, Hubei Province, Zhuxi 442300, China | | | ZHANG Kai | AgroEnvironmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | ZHOU Yuxiang | College of Resources & Environment, Huazhong Agricultural University, State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Wuhan 430070, China | | | HU Ronggui | College of Resources & Environment, Huazhong Agricultural University, State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Wuhan 430070, China | rghu@mail.hzau.edu.cn |
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| Abstract: |
| Hills, the most common landforms in South China, are prone to experience the effects of rainfall runoff and sensitive to soil erosion. Many factors have made the discharge of agricultural nitrogen from non-point sources become the main environmental problem in the process of improving rural environments and applying rural revitalization in hilly areas. This work used paddy field safe purification, ecological planting plus ditch and pond, and combination of planting and breeding in multi-stage cycle as technologies to reduce nitrogen discharges from rural human, crop, and poultry breeding sources, respectively. In addition, the "industrial controlling pollution" operation and management mode was proposed which included determining the structure and scale of industries according to the environmental carrying capacity of the basin and using both the "enterprise order + base + farmer + expert team" industrial control pollution mechanism and "village enterprise integration and participation" pollution control management system. Thus, based on the national special project for comprehensively treating agricultural non-point source pollution in typical river basins, specific engineering designs were applied in a pilot project in the Zhuxi River source basin in Zhuxi County, Hubei Province. Practical application has proved that the "industrial controlling pollution" mode resulted in an organic integration of pollution control and industrial development in a target area, effectively reduced the discharge of agricultural nitrogen from non-point sources in hilly areas, promoted the adjusts the industrial structure, improved farmer income, and promoted a win-win scenario of agricultural economic development and environmental protection. |
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