[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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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:
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Calculations and Regionalization of Agricultural Non-point Source Pollution Load in He’nan Province
- Author(s):
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PENG Shunlei1, LI Peng2, WANG Zichen1, GENG Qingling1
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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
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- Keywords:
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estimation; non-point source pollution; output coefficient; pollution load; agriculture in He’nan Province; regionalization
- CLC:
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X522
- DOI:
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- Abstract:
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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.