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Future wet grasslands:ecological implications of climate change

Ecosystem Health and Sustainability 2016年第9期2卷 2-16页

作者： Chris B.Joyce Matthew Simpson Michelle Casanova Aquatic Research Centre School of Environment and TechnologyUniversity of BrightonBrightonBN114NR UK wwt consulting SlimbridgeGloucestershire GL27BT UK School of Applied and Biomedical Sciences Federation UniversityPO Box 663BallaratVictoria 3353 Australia

Wet grasslands are threatened by future climate change,yet these are vital ecosystems for both conservation and agriculture,providing livelihoods for millions of *** biologically diverse,transitional wetlands are defined by an abundance of grasses and periodic flooding,and maintained by regular disturbances such as grazing or *** study summarizes relevant climate change scenarios projected by the Intergovernmental Panel on Climate Change and identifies implications for wet grasslands globally and *** change is predicted to alter wet grassland hydrology,especially through warming,seasonal precipitation variability,and the severity of extreme events such as droughts and *** in the diversity,composition,and productivity of vegetation will affect functional and competitive relations between *** storm or flood events will favor ruderal plant species able to respond rapidly to environmental *** some regions,wet grasslands may dry out during heatwaves and drought.C4 grasses and invasive species could benefit from warming scenarios,the latter facilitated by disturbances such as droughts,floods,and possibly *** will be affected as forage available for livestock will likely become less reliable,necessitating adaptations to cutting and grazing regimes by farmers and conservation managers,and possibly leading to land *** is recommended that agri-environment schemes,and other policies and practices,are adapted to mitigate climate change,with greater emphasis on water maintenance,flexible management,monitoring,and restoration of resilient wet grasslands.

关键词： agricultural production biodiversity climate extremes disturbance drought ecosystem services flooding mitigation Special Feature:Wetlands and Global Climate and Land-use Change wetland

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