Arid
DOI10.1016/j.advwatres.2006.11.006
Vegetation response to rainfall intermittency in drylands: Results from a simple ecohydrological box model
Baudena, M.; Boni, G.; Ferraris, L.; von Hardenberg, J.; Provenzale, A.
通讯作者Baudena, M.
来源期刊ADVANCES IN WATER RESOURCES
ISSN0309-1708
EISSN1872-9657
出版年2007
卷号30期号:5页码:1320-1328
英文摘要

Vegetation in and and semi-arid regions is affected by intermittent water availability. We discuss a simple stochastic model describing the coupled dynamics of soil moisture and vegetation, and study the effects of rainfall intermittency. Soil moisture dynamics is described by a ecohydrological box model, while vegetation is represented by site occupancy dynamics in a spatially-implicit model. We show that temporal rainfall intermittency allows for vegetation persistence at low values of annual rainfall volume, whereas it would go extinct if rainfall were constant. Rainfall intermittency also generates long-term fluctuations in vegetation cover, even in the absence of significant inter-annual variations in the statistical properties of precipitation. (C) 2006 Elsevier Ltd. All rights reserved.


英文关键词ecohydrology rainfall intermittency drylands mathematical models
类型Article
语种英语
国家Italy
收录类别SCI-E
WOS记录号WOS:000246092800020
WOS关键词WATER-CONTROLLED ECOSYSTEMS ; HYDROLOGIC PROCESSES ; ACTIVE-ROLE ; SOIL-MOISTURE ; DYNAMICS ; STRESS ; PLANTS ; FLUCTUATIONS ; ENVIRONMENTS ; VARIABILITY
WOS类目Water Resources
WOS研究方向Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/153307
作者单位(1)Ctr Ric Interuniv Monitoraggio Ambientale, CIMA, I-17100 Savona, Italy;(2)CNR, Ist Sci Atmosfera & Clima, ISAC, I-10133 Turin, Italy
推荐引用方式
GB/T 7714
Baudena, M.,Boni, G.,Ferraris, L.,et al. Vegetation response to rainfall intermittency in drylands: Results from a simple ecohydrological box model[J],2007,30(5):1320-1328.
APA Baudena, M.,Boni, G.,Ferraris, L.,von Hardenberg, J.,&Provenzale, A..(2007).Vegetation response to rainfall intermittency in drylands: Results from a simple ecohydrological box model.ADVANCES IN WATER RESOURCES,30(5),1320-1328.
MLA Baudena, M.,et al."Vegetation response to rainfall intermittency in drylands: Results from a simple ecohydrological box model".ADVANCES IN WATER RESOURCES 30.5(2007):1320-1328.
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