Ecohydrological feedbacks between salt accumulation and vegetation dynamics: Role of vegetation-groundwater interactions
نویسندگان
چکیده
منابع مشابه
Rainfall intermittency and vegetation feedbacks in drylands
We discuss a simplifed, conceptual model for the dynamics of the soil-vegetation system in drylands. The model considers the different dynamical processes taking place in vegetated and non-vegetated soil and it distinguishes between the upper soil layer, where rapid evaporation dominates, and the deeper root layer where only plant transpiration takes place. We explore the role of rainfall inter...
متن کاملVegetation–microclimate feedbacks in woodland–grassland ecotones
Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA, Department of Biology, University of New Mexico, Albuquerque, NM, USA, South Florida Natural Resource Center, Everglades National Park, Homestead, FL, USA, USGS, Southeast Ecological Science Center, Gainesville, FL, USA, Department of Meteorology, The Pennsylvania State University, University Park, PA, USA A...
متن کاملVegetation, fire, and feedbacks: a disturbance-mediated model of savannas.
Savanna models that are based on recurrent disturbances such as fire result in nonequilibrium savannas, but these models rarely incorporate vegetation feedbacks on fire frequency or include more than two states (grasses and trees). We develop a disturbance model that includes vegetation-fire feedbacks, using a system of differential equations to represent three main components of savannas: gras...
متن کاملFire Feedbacks with Vegetation and Alternative Stable States
Positive feedbacks between vegetation and fire disturbance may lead to nonlinear ecosystem responses to variation in fire regime. We used a cellular automaton model of fire|vegetation dynamics based on pine savanna communities to explore the potential for fire|vegetation feedbacks to lead to ecological thresholds and abrupt transitions between alternate ecosystem states. We show that (i) ecosys...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Water Resources Research
سال: 2010
ISSN: 0043-1397
DOI: 10.1029/2010wr009464