JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (02): 1-8.doi: 10.3969/j.issn.1000-2006.2016.02.001

Previous Articles     Next Articles

Advances on agricultural non-point source pollution and the control in regions around Hung-tse Lake

XU Yongfeng, CHEN Zipeng, WU Yi, ZHU Yongli*, LI Pingping*   

  1. Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
  • Online:2016-04-18 Published:2016-04-18

Abstract: Hung-tse Lake, located in the northwest of Jiangsu Province, is the fourth largest freshwater lake in China. It is also one of the key hinge lakes in the east route of the south-to-north water transfer project. However, the water quality for the lake was worse than grade Ⅴ according to the Environmental Quality Standard of Surface Water of the People’s Republic of China. Non-point source pollution around the lake was considered one of the main reasons. In the present study, the feature, sources, inducement, control and management of agricultural non-point pollution around the lake were reviewed. We held that the unreasonable application of chemical fertilizer was the largest source of the pollution. Aquaculture pollution was substantially increasing due to the facts of the ineffective management to enclosure culture and the abuse of exogenous diets. In addition, the emissions of livestock and poultry breeding, rural sewage and unordered waste management were the main contributors of the pollution. Therefore, the control strategies for the agricultural non-point source pollution in the regions should focused on ① developing ecological agriculture with reasonable applications of fertilizer and pesticides, ② integrating and optimizing the aquaculture, ③ improving the treatment of rural sewage and recycling of agricultural wastes, ④ reducing pollution by enhancing the land use among farmlands, woodlands and wetlands.

CLC Number: