干旱区生态环境知识资源中心(Arid): Predicting Streamflow and Nutrient Loadings in a Semi-Arid Mediterranean Watershed with Ephemeral Streams Using the SWAT Model

Arid

DOI	10.3390/agronomy10010002
	Predicting Streamflow and Nutrient Loadings in a Semi-Arid Mediterranean Watershed with Ephemeral Streams Using the SWAT Model
	Pulighe, Giuseppe 1; Bonati, Guido 1; Colangeli, Marco 2; Traverso, Lorenzo 2; Lupia, Flavio 1; Altobelli, Filiberto 1; Dalla Marta, Anna 3; Napoli, Marco 3
通讯作者	Pulighe, Giuseppe
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2020
卷号	10 期号:1
英文摘要	Predicting the availability and quality of freshwater resources is a pressing concern in the Mediterranean area, where a number of agricultural systems depend solely on precipitation. This study aims at predicting streamflow and nonpoint pollutant loads in a temporary river system in the Mediterranean basin (Sulcis area, Sardinia, Italy). Monthly discharge, suspended sediment, nitrate nitrogen, total nitrogen, mineral phosphorus, and dissolved oxygen in-stream monitoring data from gauge stations were used to calibrate and validate the Soil and Water Assessment Tool model for the period 1979-2009. A Sequential Uncertainty Fitting procedure was used to auto-calibrate parameter uncertainties and model evaluation. Monthly simulation during the validation period showed a positive model performance for streamflow with Nash-Sutcliffe efficiency and percent bias values of 0.7% and 18.7%, respectively. The simulation results at a watershed level indicate that the sediment load was 1.13 t ha(-1) year(-1), while for total nitrogen and total phosphorus, the simulated values were 4.8 and 1.18 kg ha(-1) year(-1), respectively. These results were consistent with the values of soil and nutrient losses observed in the Mediterranean area, although hot-spot areas with high nutrient loadings were identified. The calibrated model could be used to assess long-term impacts on water quality associated with the simulated land use scenarios.
英文关键词	hot-spot areas nitrogen river discharge sediments SWAT water budget
类型	Article
语种	英语
国家	Italy
开放获取类型	Green Published, gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000513232600002
WOS关键词	SUSPENDED SEDIMENT ; MARGINAL LANDS ; CLIMATE-CHANGE ; BIOENERGY PRODUCTION ; SOURCE AREAS ; GIANT REED ; SCALE ; IMPACTS ; QUALITY ; MANAGEMENT
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/313981
作者单位	1.CREA Res Ctr Agr Policies & Bioecon, Via Po 14, I-00198 Rome, Italy; 2.FAO Food & Agr Org United Nations, Viale Terme Caracalla, I-00153 Rome, Italy; 3.Univ Florence, DAGRI Dept Agr Food Environm & Forestry, I-50144 Florence, Italy
推荐引用方式 GB/T 7714	Pulighe, Giuseppe,Bonati, Guido,Colangeli, Marco,et al. Predicting Streamflow and Nutrient Loadings in a Semi-Arid Mediterranean Watershed with Ephemeral Streams Using the SWAT Model[J],2020,10(1).
APA	Pulighe, Giuseppe.,Bonati, Guido.,Colangeli, Marco.,Traverso, Lorenzo.,Lupia, Flavio.,...&Napoli, Marco.(2020).Predicting Streamflow and Nutrient Loadings in a Semi-Arid Mediterranean Watershed with Ephemeral Streams Using the SWAT Model.AGRONOMY-BASEL,10(1).
MLA	Pulighe, Giuseppe,et al."Predicting Streamflow and Nutrient Loadings in a Semi-Arid Mediterranean Watershed with Ephemeral Streams Using the SWAT Model".AGRONOMY-BASEL 10.1(2020).