A conceptual dynamic vegetation-soil model for arid and semiarid zones
نویسندگان
چکیده
منابع مشابه
A Coupled Vegetation–Soil Bidirectional Reflectance Model for a Semiarid Landscape
A model for the bidirectional reflectance over soils is from grasslands to shrublands will affect the biogeochemical cycles and the interactions between the land surface coupled with a vegetation reflectance model to predict the bidirectional reflectance of semiarid landscape. The vegetaand the atmosphere over those regions. Satellite remote sensing provides the only technically consistent and ...
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1 Istituto di Ricerca Sulle Acque, sede di Bari, via De Blasio, 5, 70123, Bari, Italy 2 Dipartimento di Ingegneria delle Acque e Chimica, Politecnico di Bari, 70125, Bari, Italy 3 Centre for Water Research, The University of Western Australia, Crawley, WA, Australia * now at: Departments of Geography and Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 220 Davenp...
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A multi-layer one-dimensional vertical model of the upper soil, vegetation and lower atmosphere is developed and implemented. This model includes explicit representations of the heat and moisture diffusion both in the soil and in the atmosphere, and computations of various mass and energy fluxes at the soil-air, vegetation-air and soil-root interfaces. Four models are run in parallel to compute...
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A dynamical ecosystem model with three variables, living biomass, wilted biomass and available soil wetness, is developed to examine the vegetation–soil water interaction in semi-arid areas. The governing equations are based on the mass conservation law. The physical and biophysical processes are formulated with the parameters estimated from observational data. Both numerical results and qualit...
متن کاملHydrolase enzyme activities in a successional gradient of biological soil crusts in arid and semi-arid zones
In arid and semi-arid regions, pioneer organisms form complex communities that penetrate the upper millimetres of the bare substrate, creating biological soil crusts (BSC). These thin crusts play a vital role in whole ecosystem functioning because they enrich bare surfaces with organic matter, initiate biogeochemical cycling of elements, modify hydrological cycles, etc., thus enabling the groun...
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ژورنال
عنوان ژورنال: Hydrology and Earth System Sciences
سال: 2008
ISSN: 1607-7938
DOI: 10.5194/hess-12-1175-2008