Water resource impacts of climate change in southwestern Bulgaria

被引：20

作者：

Chang H. ^{[1
]}

Knight C.G. ^{[2
]}

Staneva M.P. ^{[3
,4
]}

Kostov D. ^{[5
]}

机构：

[1] Department of Geography, Portland State University, Portland, OR

[2] Department of Geography, Pennsylvania State University, University Park, PA

[3] Pennsylvania State University (Altoona Campus), Altoona, PA, Ivyside Park

[4] Center for Integrated Regional Assessment, Pennsylvania State University

[5] Independent Scholar, Stara Zagora

来源：

GeoJournal | 2002年 / 57卷 / 3期

基金：

美国国家科学基金会;

关键词：

Bulgaria; Climate change; GIS; Runoff; Spatial and temporal variability;

D O I：

10.1023/B:GEJO.0000003611.11187.5c

中图分类号：

学科分类号：

摘要：

This study assesses the regional impact of climate change on runoff in a mountainous region of southwestern Bulgaria. A GIS-based distributed hydrologic model and two climate change scenarios - HadCM2 and CCC - were employed for years around 2025 and 2085. Results from both scenarios demonstrate the basin's sensitivity of runoff to climate change, which produce significant spatial and temporal changes in the basin's water yield with maximum runoff shift into early spring and further decreases in summer runoff. There could be no reduction in mean annual runoff, except under the Hadley scenario by 2085. Changes in the magnitude of mean monthly and peak flow are associated with early snowmelt and a reduction in snow cover in spring. Increases in spatial variability of runoff reflect the basin's complex physiographic characteristics. The increase of spatial and temporal variability in runoff points to different strategies for future water resource management.

引用

页码：159 / 168

页数：9

共 52 条

[1] Alexandrov V.A., Vulnerable agronomic systems in Bulgaria, Climatic Change, 36, 1-2, pp. 135-149, (1997)
[2] Arnell N.W., Factors Controlling the Effects of Climate Change on River Flow Regimes in a Humid Temperate Environment, Journal of Hydrology, 132, pp. 321-342, (1992)
[3] Arnell N.W., Global Warming, River Flows, and Water Resources, (1996)
[4] Arnell N.W., Climate Change and Water Resources in Britain, Climatic Change, 39, pp. 83-110, (1998)
[5] Arnell N.W., The effect of climate change on hydrological regimes in Europe: A continental perspective, Global Environmental Change, 9, pp. 5-23, (1999)
[6] Avila A., Neal C., Terradas J., Climate change implications for streamflow and streamwater chemistry in a Mediterranean catchment, Journal of Hydrology, 177, pp. 99-116, (1996)
[7] Bergstrom S., Requirements on Climate Scenarios for Water Resources Impact Studies - A Nordic Perspective, Proceedings of the Second International Conference on Climate and Water, pp. 114-123, (1998)
[8] Bergstrom S., Lindstrom G., A Swedish Perspective on Climate Change and Flood Risks, Second International RIBAMOD Workshop on Impact of Climate Change on Flooding and Sustainable River Management, (1998)
[9] Bergstrom S., Carlsson B., Gardelin M., Lindstrom G., Pettersson A., Rummukainen M., Climate change impacts on runoff in Sweden - Assessments by global climate models, dynamical downscaling and hydrological modelling, Climate Research, 16, 2, pp. 101-112, (2001)
[10] Bultot F., Gellens D., Schadler B., Spreafico M., Effects of Climate Change on Snow Accumulation and Melting in the Broye Catchment (Switzerland), Climatic Change, 28, pp. 339-363, (1994)

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