Search results for " encroachment"

showing 6 items of 6 documents

Mechanisms of shrub encroachment into Northern Chihuahuan Desert grasslands and impacts of climate change investigated using a cellular automata model

2016

Arid and semiarid grasslands of southwestern North America have changed dramatically over the last 150 years as a result of woody plant encroachment. Overgrazing, reduced fire frequency, and climate change are known drivers of woody plant encroachment into grasslands. In this study, relatively sim- ple algorithms for encroachment factors (i.e., grazing, grassland fires, and seed dispersal by grazers) are proposed and implemented in the ecohydrological Cellular-Automata Tree Grass Shrub Simulator (CAT- GraSS). CATGraSS is used in a 7.3 km 2 rectangular domain located in central New Mexico along a zone of grassland to shrubland transition, where shrub encroachment is currently active. CATGraS…

0106 biological sciencesgeographyHerbivoreEcohydrologygeography.geographical_feature_category010504 meteorology & atmospheric sciencesEcologyved/biologySeed dispersalSettore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologiaved/biology.organism_classification_rank.speciesShrub encroachmentClimate change010603 evolutionary biology01 natural sciencesShrubAridGrasslandShrublandCA modelClimate changeEnvironmental scienceOvergrazing0105 earth and related environmental sciencesWater Science and TechnologyAdvances in Water Resources
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Modeling the past and future dynamic of the vegetation patterns at catchment scale using an ecohydrological Cellular Automata model

2014

Settore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaCellular Automata ecohydrology topography encroachment climate change
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MODELING THE SHRUB ENCROACHMENT IN THE NORTHERN CHIHUAHUAN DESERT GRASSLANDS WITH A CELLULAR AUTOMATA MODEL

2014

Shrub encroachment cellular automata ecohydrology
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Modeling the juniper encroachment in the western north America grasslands with a Cellular Automata model

2014

juniper encroachment
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Modelling the shrub encroachment in a grassland with a Cellular Automata Model

2018

Abstract. Arid and semi-arid grasslands of southwestern North America have changed dramatically over the last 150 years as a result of shrub encroachment, i.e. the increase in density, cover and biomass of indigenous shrubby plants in grasslands. Numerous studies have documented the expansion of shrublands in the southwestern American grasslands; in particular shrub encroachment has occurred strongly in part of the northern Chihuahuan desert since 1860. This encroachment has been simulated using an ecohydrological Cellular Automata model, CATGraSS. It is a spatially distributed model driven by spatially explicit irradiance and runs on a fine-resolution gridded domain. Plant competition is m…

lcsh:GE1-350geographyBiomass (ecology)geography.geographical_feature_categoryEcologyved/biologySeed dispersalcellular automataved/biology.organism_classification_rank.specieslcsh:QE1-996.5Settore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaGeneral Medicineshrub encroachmentShrubAridGrasslandecohydrologyShrublandPlant ecologylcsh:GeologyGrazinglcsh:Environmental sciences
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Modeling the shrub encroachment in the Northern Chihuahuan desert Grasslands using a Cellular Automata model

2014

shrub encroachment
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