globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2016.03.025
Scopus记录号: 2-s2.0-84961226077
论文题名:
Ecohydrological implications of drought for forests in the United States
作者: Vose J.M.; Miniat C.F.; Luce C.H.; Asbjornsen H.; Caldwell P.V.; Campbell J.L.; Grant G.E.; Isaak D.J.; Loheide S.P.; II; Sun G.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2016
卷: 380
起始页码: 335
结束页码: 345
语种: 英语
英文关键词: Climate change ; Management options ; Streamflow ; Transpiration ; Water balance ; Water quality
Scopus关键词: Climate change ; Drought ; Ecology ; Ecosystems ; Flow of water ; Groundwater ; Recharging (underground waters) ; Reforestation ; Stream flow ; Surface waters ; Transpiration ; Vegetation ; Water quality ; Ground water recharge ; Hydrologic response ; Hydrological process ; Management options ; Natural disturbance ; Spatial and temporal scale ; Species composition and structures ; Water balance ; Forestry ; climate change ; drought stress ; ecohydrology ; ecophysiology ; evapotranspiration ; forest ecosystem ; forest management ; functional group ; population dynamics ; regrowth ; streamflow ; thinning ; tolerance ; vegetation dynamics ; water budget ; water quality ; water use efficiency ; watershed ; United States ; Hexapoda
英文摘要: The relationships among drought, surface water flow, and groundwater recharge are not straightforward for most forest ecosystems due to the strong role that vegetation plays in the forest water balance. Hydrologic responses to drought can be either mitigated or exacerbated by forest vegetation depending upon vegetation water use and how forest population dynamics respond to drought. Understanding how drought impacts ecosystems requires understanding how drought impacts ecohydrological processes. Because different species and functional groups vary in their ecophysiological traits that influence water use patterns, changes in species assemblages can alter hydrological processes from the stand to the watershed scales. Recent warming trends and more prolonged and frequent droughts have accelerated the spread and intensity of insect attacks in the western US that kill nearly all of the canopy trees within forest stands, changing the energy balance of the land surface and affecting many hydrologic processes. In contrast, some eastern forest tree species and size classes can tolerate drought better than others, suggesting the potential for drought-mediated shifts in both species composition and structure. Predicting how these changes will impact hydrologic processes at larger spatial and temporal scales presents a considerable challenge. The biogeochemical consequences of drought, such as changes in stream chemistry, are closely linked to vegetation dynamics and hydrologic responses. As with other natural disturbances, droughts are difficult to prepare for because they are unpredictable. However, there are management options that may be implemented to minimize the impacts of drought on water quantity and quality. Examples include reducing leaf area by thinning and regenerating cut forests with species that consume less water, although a high level of uncertainty in both drought projections and anticipated responses suggests the need for monitoring and adaptive management. © 2016
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64709
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作者单位: U.S. Department of Agriculture, Forest Service, Southern Research Station, Center for Integrated Forest Science, Department of Forestry and Environmental Resources, Raleigh, NC, United States; U.S. Department of Agriculture, Forest Service, Southern Research Station, Center for Forest Watershed Research, Coweeta Hydrologic Laboratory, OttoNC, United States; U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Boise, ID, United States; Department of Natural Resources, University of New Hampshire, Durham, NH, United States; U.S. Department of Agriculture, Forest Service, Northern Research Station, Center for Research on Ecosystem Change, Durham, NH, United States; U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, Ecological Process and Function Program, Forestry Science Laboratory, Corvallis, OR, United States; Civil and Environmental Engineering, University of Wisconsin at Madison, Madison, WI, United States; U.S. Department of Agriculture, Forest Service, Southern Research Station, Eastern Forest Environmental Threat Assessment Center, Raleigh, NC, United States

Recommended Citation:
Vose J.M.,Miniat C.F.,Luce C.H.,et al. Ecohydrological implications of drought for forests in the United States[J]. Forest Ecology and Management,2016-01-01,380
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