Below-ground relationships of soil texture, roots and hydraulic conductivity in two-phase mosaic vegetation in South-east Spain.

Archer, N. A. L. and Quinton, John N. and Hess, T. M. (2002) Below-ground relationships of soil texture, roots and hydraulic conductivity in two-phase mosaic vegetation in South-east Spain. Journal of Arid Environments, 52 (4). pp. 535-553. ISSN 0140-1963

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Abstract

Results led to the development of a conceptual model, which describes that the presence of deep larger diameter roots in shrub areas form large open channels at deeper soil depths, facilitating deep-water percolation, while presence of thin shallow roots in grass areas form small open channels at shallow depths, causing water to remain within shallow depths. Over time these roots systems will alter their environment and facilitate storage and uptake of water and nutrient availability. The difference in rooting depth will decrease the competition for water between the shrub areas and grass areas and cause differences in water distribution and availability.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Arid Environments
Additional Information:
624KV J ARID ENVIRON
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2303
Subjects:
?? soil texturerootshydraulic conductivitybelow-groundsouth-east spainretama sphaerocarpaanthyllis cytisoidesmosaic vegetationecologyecology, evolution, behavior and systematicsearth-surface processesge environmental sciences ??
ID Code:
13137
Deposited By:
Deposited On:
12 Feb 2009 09:42
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Nov 2024 00:59