[1]WANG Jucui,CHEN Shuzhong,HU Anyan,et al.Study on Estimation and Allocation of Water Environmental Capacity in Jinghe River, Shaanxi Province, China[J].Research of Soil and Water Conservation,2016,23(06):160-165.
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Study on Estimation and Allocation of Water Environmental Capacity in Jinghe River, Shaanxi Province, China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 06
Page number:
160-165
Column:
Public date:
2016-12-28
- Title:
- Study on Estimation and Allocation of Water Environmental Capacity in Jinghe River, Shaanxi Province, China
- CLC:
- X524
- DOI:
- -
- Abstract:
- The research on river water environmental capacity has practical significance for its pollutant total control in river which is non-point source pollution. Based on the investigation of the application and emission of total nitrogen (TN) for non-point river catchment’s area, the quantities of TN entering the river were computed by means of export coefficient model in Jinghe River. Self-purification capacities of TN in the reach were also estimated in terms of input-output balance. According to the water environment Ⅲ water quality target, TN exceeds the standard all year round, and all pollution sources reduction of TN amounted to 3 191.891 1 tons. According to the analysis result, the land use type is the largest amount of total nitrogen pollution reduction (1 294.239 6 t), and livestock farming is the largest sources of pollution cut proportion (47.76%). From the time distribution of pollution sources, wet reason is the right time of pollution reduction, and pollutant reduction amount of each pollution source enlarges with the increase of runoff. Rainfall runoff is the restrictive factor of total nitrogen pollution in Jinghe River, Shaanxi Province.
- References:
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