Arid
DOI10.1002/eco.21
Shrubs enhance resilience of a semi-arid ecosystem by engineering and regrowth
Segoli, Moran1; Ungar, Eugene David2; Shachak, Moshe1
通讯作者Segoli, Moran
来源期刊ECOHYDROLOGY
ISSN1936-0584
EISSN1936-0592
出版年2008
卷号1期号:4页码:330-339
英文摘要

Semi-arid ecosystems in the Mediterranean basin show a high degree of resilience. despite thousands of years of human disturbance. It has been suggested that this resilience is facilitated by a landscape structure that consists of woody vegetation and intershrub patches of crusted soil. We hypothesized that the woody vegetation patches have two main properties that increase the resilience of the ecosystem. The first property is the capability to accumulate water, and we hypothesized that this continues to function after anthropogenic disturbances to the shrubs. This was field-tested with a rainfall simulator by comparing the amounts of runoff and soil erosion generated by crusted intershrub patches, intact shrub patches and disurbed shrub patches. The second property is the ability of the woody vegetation to recover after disturbances. This was tested by measuring the recovery rate of the woody vegetation. during 2 consecutive years after canopy removal. Intact and disturbed shrub patches generated similar amounts of runoff and soil erosion to one another, and much lower than crusted intershrub patches, and both kinds of shrub patches had deeper water infiltration. These results suggest that the accumulation of water under the shrub is due to Surface and sub-surface Soil properties, and not canopy properties. After anthropogenic removal of the woody vegetation canopy. most of the individuals regrew. These combined results suggest that the ecosystem can remain resilient to certain anthropogenic disturbances by virtue of ecosystem engineering and fast recovery by woody vegetation patches that act to conserve resources and to impede their leakage from the ecosystem. Copyright (C) 2008 John Wiley & Sons, Ltd.


英文关键词resilience ecosystem engineering runoff infiltration woody vegetation disturbance
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000262150500005
WOS关键词VEGETATION PATTERNS ; MEDITERRANEAN RANGELANDS ; ECOLOGICAL-SYSTEMS ; BANDED VEGETATION ; PLANT-COMMUNITIES ; DWARF-SHRUB ; SOIL ; DESERT ; MANAGEMENT ; LANDSCAPE
WOS类目Ecology ; Environmental Sciences ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Water Resources
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/157033
作者单位1.Ben Gurion Univ Negev, BIDR, Mitrani Dept Desert Ecol, IL-84990 Sede Boqer, Israel;
2.Agr Res Org, Volcani Ctr, Inst Plant Sci, Dept Agron & Nat Resources, IL-50250 Bet Dagan, Israel
推荐引用方式
GB/T 7714
Segoli, Moran,Ungar, Eugene David,Shachak, Moshe. Shrubs enhance resilience of a semi-arid ecosystem by engineering and regrowth[J]. Ben-Gurion University of the Negev,2008,1(4):330-339.
APA Segoli, Moran,Ungar, Eugene David,&Shachak, Moshe.(2008).Shrubs enhance resilience of a semi-arid ecosystem by engineering and regrowth.ECOHYDROLOGY,1(4),330-339.
MLA Segoli, Moran,et al."Shrubs enhance resilience of a semi-arid ecosystem by engineering and regrowth".ECOHYDROLOGY 1.4(2008):330-339.
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