水资源与水工程学报2017，Vol.28Issue(6)：1-7,7.DOI:10.11705/j.issn.1672-643X.2017.06.01
基于SWAT模型的小清河流域总氮输出模拟研究
Simulation of total nitrogen transport based on SWAT model in Xiaoqinghe River Basin of Shandong Province
摘要
Abstract
Serious point source and non-point source pollution in Xiaoqinghe River Basin, primarily caused by advanced industries and agriculture, have resulted in the excess of river water total nitrogen, which further have deteriorated the aquatic ecology and environment of Xiaoqinghe Estuary and Laizhou Bay. Based on observed streamflow and total nitrogen data, the SWAT model, established for Xiaoqinghe River Basin, has been calibrated and verified. Then, the spatial and temporal characteristics of total ni-trogen load for the period of 2008-2013 have been simulated and analyzed, and the pollution source of total nitrogen has been identified. The results show that accordant with the annual streamflow, the annual total nitrogen load indicates an obvious inter-annual variability with the annual average value of 38 . 0 × 103 t. Spatially, total nitrogen load is relatively high for various sub-basins, among which the highest out-put in the sub-basins located in Shouguang City and Zhangqiu City with advanced agriculture, Zouping County with many engineering enterprises, Jinan urban district with high population density. The primary source of total nitrogen load is dominated by non-point pollution source. Nitrogen losses from agriculture fertilizer and livestock manure account for 32. 5％ and 29. 5％, respectively of the total nitrogen load. In addition, nitrogen emissions from industries and urban wastewater contribute greatly to the total nitrogen load with the proportion of 19. 4％ and 16. 5％, respectively. Therefore, point and non-point pollution source should be overall considered for the total amount control and reduction of total nitrogen in Xiao-qinghe River Basin.关键词
SWAT模型/总氮/点源/非点源/小清河流域Key words
SWAT model/total nitrogen/point source/non-point source/Xiaoqinghe River Basin分类
资源环境引用本文复制引用
姜德娟,王琼,李瑞泽,张华..基于SWAT模型的小清河流域总氮输出模拟研究[J].水资源与水工程学报,2017,28(6):1-7,7.基金项目
中国科学院重点部署项目(KZZD-EW-14) （KZZD-EW-14）
中国科学院"一三五"规划(烟台海岸带研究所)生态突破项目(Y254021031) （烟台海岸带研究所）
国家自然科学基金项目(41671473) （41671473）
