DOI: 10.1007/s10584-013-0980-4
Scopus记录号: 2-s2.0-84901231069
论文题名: Modeling effects of climate change on Yakima River salmonid habitats
作者: Hatten J.R. ; Batt T.R. ; Connolly P.J. ; Maule A.G.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2014
卷: 124, 期: 2018-01-02 起始页码: 427
结束页码: 439
语种: 英语
Scopus关键词: Banks (bodies of water)
; Climate change
; Climate models
; Floods
; Geographic information systems
; Rivers
; Time series
; Watersheds
; Climate change scenarios
; Habitat time series
; Hydrodynamic model
; Mean air temperatures
; Operations Modeling
; Proactive management
; Spatial and temporal patterns
; Spatially explicit
; Ecosystems
; climate change
; climate effect
; climate modeling
; GIS
; habitat management
; salmonid
; watershed
; United States
; Washington [United States]
; Yakima River
; Oncorhynchus tshawytscha
; Salmonidae
英文摘要: We evaluated the potential effects of two climate change scenarios on salmonid habitats in the Yakima River by linking the outputs from a watershed model, a river operations model, a two-dimensional (2D) hydrodynamic model, and a geographic information system (GIS). The watershed model produced a discharge time series (hydrograph) in two study reaches under three climate scenarios: a baseline (1981-2005), a 1-°C increase in mean air temperature (plus one scenario), and a 2-°C increase (plus two scenario). A river operations model modified the discharge time series with Yakima River operational rules, a 2D model provided spatially explicit depth and velocity grids for two floodplain reaches, while an expert panel provided habitat criteria for four life stages of coho and fall Chinook salmon. We generated discharge-habitat functions for each salmonid life stage (e.g., spawning, rearing) in main stem and side channels, and habitat time series for baseline, plus one (P1) and plus two (P2) scenarios. The spatial and temporal patterns in salmonid habitats differed by reach, life stage, and climate scenario. Seventy-five percent of the 28 discharge-habitat responses exhibited a decrease in habitat quantity, with the P2 scenario producing the largest changes, followed by P1. Fry and spring/summer rearing habitats were the most sensitive to warming and flow modification for both species. Side channels generally produced more habitat than main stem and were more responsive to flow changes, demonstrating the importance of lateral connectivity in the floodplain. A discharge-habitat sensitivity analysis revealed that proactive management of regulated surface waters (i.e., increasing or decreasing flows) might lessen the impacts of climate change on salmonid habitats. © 2013 The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84883
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, Cook, WA, 98605, United States
Recommended Citation:
Hatten J.R.,Batt T.R.,Connolly P.J.,et al. Modeling effects of climate change on Yakima River salmonid habitats[J]. Climatic Change,2014-01-01,124(2018-01-02)