气候变化领域集成服务门户(CCPortal): Land cover effects on hydrologic services under a precipitation gradient

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DOI	10.5194/hess-22-5227-2018
	Land cover effects on hydrologic services under a precipitation gradient
	Zabaleta A.; Garmendia E.; Mariel P.; Tamayo I.; Antiguedad I.
发表日期	2018
ISSN	1027-5606
起始页码	5227
结束页码	5241
卷号	22 期号:10
英文摘要	Climate change impacts on the hydrological cycle are altering the quantity, quality, and temporal distribution of riverine discharge, necessitating a more rigorous consideration of changes in land cover and land use. This study establishes relationships between different land cover combinations (e.g. percentages of forest - both native and exotic - and pastureland) and hydrological services, using hydrological indices estimated at annual and seasonal timescales in an area with a steep precipitation gradient (900-2600mmyr1). Using discharge data from 20 catchments in the Bay of Biscay, a climate transition zone, the study applied multiple regression models to better understand how the interaction between precipitation and land cover combinations influence hydrological services. Findings showed the relationship between land cover combinations and hydrological services is highly dependent on the amount of precipitation, even in a climatically homogeneous and relatively small area. In general, in the Bay of Biscay area, the greater presence of any type of forests is associated with lower annual water resources, especially with greater percentages of exotic plantations and high annual precipitation. Where precipitation is low, forests show more potential to reduce annual and winter high flows than pasturelands, but this potential decreases as annual or seasonal precipitation increases. As annual precipitation increases, low flows increase as the percentage of exotic plantations decreases and pasturelands increase. Results obtained in this study improve understanding of the multiple effects of land cover on hydrological services, and illustrate the relevance of land planning to the management of water resources, especially under a climate change scenario. © Author(s) 2018.
语种	英语
scopus关键词	Climate models; Forestry; Land use; Regression analysis; Water management; Annual precipitation; Climate change impact; Climate change scenarios; Hydrological services; Multiple regression model; Precipitation gradients; Seasonal precipitations; Temporal distribution; Climate change
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159891
作者单位	Zabaleta, A., Hidro-Environmental Processes Group, Science and Technology Faculty, University of the Basque Country UPV, EHU, Basque Country, Leioa, 48940, Spain; Garmendia, E., Department of Applied Economics i, University of the Basque Country UPV, EHU, Vitoria-Gasteiz, 01006, Spain, Basque Centre for Climate Change (BC3), Parque Científico de UPV, EHU, Leioa, 48940, Spain; Mariel, P., Department of Applied Economics III (Econometrics and Statistics), University of the Basque Country UPV, EHU, Bilbao, 48015, Spain; Tamayo, I., Department of Statistics, Harvard University, Cambridge, 02140, United States; Antiguedad, I., Hidro-Environmental Processes Group, Science and Technology Faculty, University of the Basque Country UPV, EHU, Basque Country, Leioa, 48940, Spain
推荐引用方式 GB/T 7714	Zabaleta A.,Garmendia E.,Mariel P.,et al. Land cover effects on hydrologic services under a precipitation gradient[J],2018,22(10).
APA	Zabaleta A.,Garmendia E.,Mariel P.,Tamayo I.,&Antiguedad I..(2018).Land cover effects on hydrologic services under a precipitation gradient.Hydrology and Earth System Sciences,22(10).
MLA	Zabaleta A.,et al."Land cover effects on hydrologic services under a precipitation gradient".Hydrology and Earth System Sciences 22.10(2018).