globalchange  > 气候减缓与适应
DOI: 10.2166/wcc.2013.121
论文题名:
Potential ecological impact of climate change on the water quality of an intensively managed agricultural watershed in Quebec, Canada
作者: Novotná B.; van Bochove E.; Thériault G.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2014
卷: 5, 期:1
起始页码: 81
结束页码: 99
语种: 英语
英文关键词: Agriculture ; Climate change ; Ecological impact ; Hydrologic model ; Watershed
英文摘要: This study investigated the effects of climate change (CC) on water redistribution in a microwatershed of a lowland agricultural area of the Bras d'Henri River in the temperate cold climate of Quebec, Canada. AWater Flow and Balance Simulation Model (WaSiM-ETH) was used to simulate the hydrology using current climatic conditions and land use characteristics, applying Richards' equation. A one-day temporal resolution was used with a spatial resolution of 2 × 2 m. The CC scenarios Coupled Global Climate Model, version 1 (CGCM1) and Hadley Centre Coupled Model, version 3.1 (HadCM3.1) were downscaled to the regional level and integrated into WaSiM-ETH and evaluated for both current and modified climatic conditions. Mean annual precipitation values (P) increased from 15-33%, evapotranspiration from 7-26%, and discharge (Q) from 16-45%. The identification of the significant water quality problem represented by average value of total suspended solids (TSS) 265.29 (kg ha-1), nutrients: nitrogen (NO3-N) 16.83 (kg ha-1) and total phosphorus (TP) 0.59 (kg ha-1) for the whole evaluated period; and (TSS) 148.09 (kg ha-1), (NO3-N) 5.65 (kg ha-1) and (TP) 0.31 (kg ha-1) during the days with surface runoff, in relation to water quantity and CC creates the basis for erosion risk assessment. © Her Majesty the Queen in Right of Canada, as represented by the Minister of Agriculture and Agri-Food Canada 2014.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67706
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作者单位: Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Boulevard, Quebec, QC, G1V 2J3, Canada; Department of Landscape Engineering, Slovak Agricultural University in Nitra, Hospodarska 7, 949 76 Nitra, Slovakia; Office of Knowledge and Technology Transfer Science and Technology Branch, Agriculture and Agri-Food Canada, Complexe Jules-Dallaire, 2828 Laurier Blvd, Québec, QC, G1V 0B9, Canada

Recommended Citation:
Novotná B.,van Bochove E.,Thériault G.. Potential ecological impact of climate change on the water quality of an intensively managed agricultural watershed in Quebec, Canada[J]. Journal of Water and Climate Change,2014-01-01,5(1)
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