Simulation of agricultural non-point source pollution in Xichuan by using SWAT model

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Xing, Linan^1 ; Zuo, Jiane^2 ; Liu, Fenglin^2 ; Zhang, Xiaohui^1 ; Cao, Qiguang^1

School of Biological Engineering, Beijing Polytechnic, Beijing, China^1

State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China^2

关键词: Agricultural non-point source pollutions;    Climate monitoring;    Coefficient of determination;    Land use maps;    Nash-Sutcliffe coefficient;    Suspended solids;    Total nitrogen;    Total phosphorus;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012167/pdf
DOI  :  10.1088/1755-1315/113/1/012167

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper evaluated the applicability of using SWAT to access agricultural non-point source pollution in Xichuan area. In order to build the model, DEM, soil sort and land use map, climate monitoring data were collected as basic database. The SWAT model was calibrated and validated for the SWAT was carried out using streamflow, suspended solids, total phosphorus and total nitrogen records from 2009 to 2011. Errors, coefficient of determination and Nash-Sutcliffe coefficient were considered to evaluate the applicability. The coefficient of determination were 0.96, 0.66, 0.55 and 0.66 for streamflow, SS, TN, and TP, respectively. Nash-Sutcliffe coefficient were 0.93, 0.5, 0.52 and 0.63, respectively. The results all meet the requirements. It suggested that the SWAT model can simulate the study area.