Stability of banded vegetation patterns under seasonal rainfall and limited soil moisture storage capacity

被引：42

作者：

Ursino, Nadia ^{[1
]}

Contarini, Samuel ^{[1
]}

机构：

[1] Univ Padua, Dept Ingn Idraul Marittima & Geotecn, I-35100 Padua, Italy

来源：

ADVANCES IN WATER RESOURCES | 2006年 / 29卷 / 10期

关键词：

semi-arid grasslands; vegetation banding; stability analysis; seasonality of rainfall; soil moisture storage;

D O I：

10.1016/j.advwatres.2005.11.006

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The delicate equilibrium of soil moisture and biomass may become unstable under water scarcity conditions causing banded vegetation patterns to form on hillsides of semi-arid catchments. Soil related processes that induce instability (namely: soil moisture advection and diffusion), have been evaluated numerically for different rainfall regimes. This study addresses the combined influence of some relevant soil characteristics, and the effect of seasonal precipitation on vegetation patterns, advancing the comprehension of those mechanisms that cause shifts toward banded vegetation patterns or bare states. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1556 / 1564

页数：9

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