Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/02626667.2012.726994 |
Runoff and sediment yield from a small watershed in southeastern Spain (Lanjaron): implications for water quality | |
Duran Zuazo, Victor Hugo1; Francia Martinez, Jose Ramon2; Garcia Tejero, Ivan1; Rodriguez Pleguezuelo, Carmen Rocio2; Martinez Raya, Armando2; Cuadros Tavira, Simon3 | |
通讯作者 | Duran Zuazo, Victor Hugo |
来源期刊 | HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES
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ISSN | 0262-6667 |
EISSN | 2150-3435 |
出版年 | 2012 |
卷号 | 57期号:8页码:1610-1625 |
英文摘要 | This study presents an analysis of three hydrological years (2007/08, 2008/09 and 2009/10) of precipitation, runoff and sediment yield collected from a small (669.7 ha) semi-arid watershed in southeastern Spain (Lanjaron). At the watershed outlet the runoff, suspended sediment concentration, total solute concentrations and dissolved nutrients (N-NO3, N-NH4, H2PO4 and K) in streamflow were continuously monitored. The runoff was highly variable, ranging between 53.4 and 154.7 mm year(-1), with an average of 97.6 mm year(-1). In contrast, sediment yields were more regular, averaging 1.8 Mg ha(-1) year(-1). The hydrological response of the watershed depended mainly on rainfall intensity. Formerly, 32% of the watershed was forested and runoff was more regular, despite the typical Mediterranean rainfall cycle; however, due to forest area reduction to 17% and the increase in abandoned farmland area (18%) in recent decades, the runoff variability has increased. Greater amounts of solutes (32.7 Mg ha(-1) year(-1)) were exported, so that this water is considered as poor for irrigation use. The temporal nutrient export was related to seasonal discharge fluctuations as well as daily concentrations. In addition, the nutrient concentrations of the water discharged were lower than threshold limits cited in water-quality standards for agricultural use and for potable water, with the exception of K (65.9 mg L-1), which may degrade surface waters as well as irrigated soils. Thus, hydrological and erosive processes depended on the watershed features, but also on prior conditions in combination with the characteristics of rainfall episodes. |
英文关键词 | land-use type streamflow Mediterranean watershed water quality Lanjaron, Sierra Nevada Mountains Spain |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000315212700009 |
WOS关键词 | LAND-COVER CHANGE ; HYDROLOGICAL RESPONSE ; SOIL-EROSION ; CATCHMENT ; EVAPOTRANSPIRATION ; VEGETATION ; NITROGEN ; IMPACT ; FOREST ; BASIN |
WOS类目 | Water Resources |
WOS研究方向 | Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/172784 |
作者单位 | 1.IFAPA Ctr Las Torres Tomejil, E-41200 Seville, Spain; 2.IFAPA Ctr, E-18080 Granada, Spain; 3.Univ Cordoba, E-14071 Cordoba, Spain |
推荐引用方式 GB/T 7714 | Duran Zuazo, Victor Hugo,Francia Martinez, Jose Ramon,Garcia Tejero, Ivan,et al. Runoff and sediment yield from a small watershed in southeastern Spain (Lanjaron): implications for water quality[J],2012,57(8):1610-1625. |
APA | Duran Zuazo, Victor Hugo,Francia Martinez, Jose Ramon,Garcia Tejero, Ivan,Rodriguez Pleguezuelo, Carmen Rocio,Martinez Raya, Armando,&Cuadros Tavira, Simon.(2012).Runoff and sediment yield from a small watershed in southeastern Spain (Lanjaron): implications for water quality.HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,57(8),1610-1625. |
MLA | Duran Zuazo, Victor Hugo,et al."Runoff and sediment yield from a small watershed in southeastern Spain (Lanjaron): implications for water quality".HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES 57.8(2012):1610-1625. |
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