干旱区生态环境知识资源中心(Arid): KINEROS2-based simulation of total nitrogen loss on slopes under rainfall events

Arid

DOI	10.1016/j.catena.2019.01.039
	KINEROS2-based simulation of total nitrogen loss on slopes under rainfall events
	An, Miaoying 1,2; Han, Yuguo 1,2; Xu, Lei 3; Wang, Xiuru 1,2; Ao, Chang 4; Pang, Danbo 1,2
通讯作者	Han, Yuguo
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2019
卷号	177 页码:13-21
英文摘要	Soil, water and nutrient losses are major causes of environmental pollution, with runoff accompanied by nutrient transport and sediment loss. The existing runoff and erosion models focus on estimating the total amount of pollutants in the long term. There are few studies on the process of nutrient transport during individual rainfall events, and there are still some shortcomings in the mathematical models that describe the nutrient transport process on slopes with consideration of both the dissolved and adsorbed solute in the runoff. In this study, a mathematical model was constructed for describing the nutrient transport process during individual rainfall events by combining a dissolved solute transport model and an adsorbed solute transport model. After adding the nutrient model to the runoff and erosion model KINEROS2, the runoff, sediment yield, and total nitrogen loss on slopes during individual rainfall events were simulated, and the simulation results were verified using a field experiment with different rainfall intensities and different slope lengths. The results showed that the behaviour of the total nitrogen loss was consistent with the runoff and the sediment yield. The values all first increas d and then gradually stabilized, and the time to reach steady state was shortened with the increase in rainfall intensity. The runoff and sediment yield simulated by KINEROS2 were consistent with the measured data, indicating that KINEROS2 could successfully simulate the processes of runoff and erosion in runoff plots (NSE > 0.22; R-2 > 0.35). Likewise, the amount of total nitrogen loss at different time points was simulated well (NSE > 0.36; R-2 > 0.54). Therefore, KINEROS2 shows potential for simulating nutrients and has good applicability on the runoff plot scale in the arid and semi-arid regions of China.
英文关键词	Nutrient loss process Rainfall events KINEROS2 model Total nitrogen
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000463979000002
WOS关键词	DANUBE RIVER-BASIN ; MODEL USE ; EROSION PREDICTION ; MATHEMATICAL-MODEL ; SOIL DETACHMENT ; RUNOFF ; WATER ; TRANSPORT ; RELEASE ; CALIBRATION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214835
作者单位	1.Beijing Forestry Univ, Coll Soil & Water Conservat, 35 Qinghua East Rd, Beijing 100083, Peoples R China; 2.Natl Observat & Res Stn, Forest Ecosyst Studies, Ji Country 042200, Shanxi, Peoples R China; 3.China Irrigat & Drainage Dev Ctr, Beijing 100054, Peoples R China; 4.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China
推荐引用方式 GB/T 7714	An, Miaoying,Han, Yuguo,Xu, Lei,et al. KINEROS2-based simulation of total nitrogen loss on slopes under rainfall events[J]. 北京林业大学,2019,177:13-21.
APA	An, Miaoying,Han, Yuguo,Xu, Lei,Wang, Xiuru,Ao, Chang,&Pang, Danbo.(2019).KINEROS2-based simulation of total nitrogen loss on slopes under rainfall events.CATENA,177,13-21.
MLA	An, Miaoying,et al."KINEROS2-based simulation of total nitrogen loss on slopes under rainfall events".CATENA 177(2019):13-21.