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[1]PENG Shunlei,LI Peng,WANG Zichen,et al.Calculations and Regionalization of Agricultural Non-point Source Pollution Load in He’nan Province[J].Research of Soil and Water Conservation,2018,25(01):225-230.

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Calculations and Regionalization of Agricultural Non-point Source Pollution Load in He’nan Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 01 Page number: 225-230 Column: Public date: 2018-02-28

Title:: Calculations and Regionalization of Agricultural Non-point Source Pollution Load in He’nan Province

Author(s):: PENG Shunlei¹, LI Peng², WANG Zichen¹, GENG Qingling¹; 1. College of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, He’nan 467000, China;
2. College of Tourism and Planning, Pingdingshan University, Pingdingshan, He’nan 467000, China

Keywords:: estimation; non-point source pollution; output coefficient; pollution load; agriculture in He’nan Province; regionalization

CLC:: X522

DOI:: -

Abstract:: Study on the sources and loads of agriculture non-point pollution can play an important role in the agriculture non-point pollution control. Output coefficient model was used to estimate the agricultural non-point source pollutants total nitrogen and total phosphorus load in He’nan Province in 2014. The results show that:in 2014, loads of agricultural non-point source pollutants of total nitrogen and total phosphorus in He’nan were 3.87×10⁵ t/a and 5.73×10⁴ t/a, respectively. The contribution rates of different kinds of pollution of non-point source pollutants to total nitrogen decreased in the order:the cultivated land > livestock farming > rural living; the contribution rates to total phosphorus load decreased in the order:livestock and husbandry > the cultivated land > rural living. Agricultural non-point source pollution degree zones can be divided into five types, Nanyang and Zhumadian cities are the heavily polluted areas; Zhoukou, Shangqiu and Xinyang are the more severe pollution area; Xinxiang, Anyang, Luoyang, Kaifeng, Pingdingshan Zhengzhou, Xuchang are the moderate pollution area; Puyang, Sanmenxia, Hebei, Jiaozuo, Luohe are the lighter pollution areas; Jiyuan City is lightly polluted area. This study suggested that agriculture non-point pollution sourced from farmland, livestock and poultry farming, and rural living, and non-point pollution areas could be classified into five regions, which could provide the scientific basis for the agriculture non-point pollution control.

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