Arid
DOI10.1016/j.flora.2009.03.002
Changes in soil properties and vegetation following livestock grazing exclusion in degraded arid environments of South Tunisia
Jeddi, Kaouthar; Chaieb, Mohamed
通讯作者Chaieb, Mohamed
来源期刊FLORA
ISSN0367-2530
出版年2010
卷号205期号:3页码:184-189
英文摘要

In this study, characteristics of vegetation and soil properties under continued grazing and exclusion of livestock for 6 and 12 years were examined in a degraded Stipa tenacissima steppe in South Tunisia


Exclosures enhance the total plant cover, the dry matter yield, the number of species per unit area and the Shannon-Wiener diversity. Some palatable species were frequently found inside the protected site In the continually grazed site, these species are being replaced by less desirable species. Contents of soil organic matter, total nitrogen, Ca(2+) and K(+) in soils, as well as, water infiltration rate and basal soil respiration showed an increasing trend as time of grazing exclusion increased, from minimum values in the continually grazed area (Gr) to the maximum levels in 12 years protected area (12ex), while there was an opposite trend for Na(+) concentration, EC, pH and soil hydrophobicity values The results suggested that excluding grazing livestock on the arid degraded steppes has a great potential to restore vegetation and soil. Therefore, it must be encouraged as an alternative to stop further degradation and to combat desertification in arid and semi arid ecosystems (C.) 2009 Elsevier GmbH. All rights reserved.


英文关键词Livestock exclusion Vegetation characteristics Soil properties Arid ecosystem Restoration
类型Article
语种英语
国家Tunisia
收录类别SCI-E
WOS记录号WOS:000276308600005
WOS关键词WATER REPELLENCY ; INNER-MONGOLIA ; SPECIES COMPOSITION ; DESERT STEPPE ; NORTH ; ECOSYSTEMS ; PROTECTION ; DIVERSITY ; DESERTIFICATION ; REHABILITATION
WOS类目Plant Sciences ; Ecology
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/164152
作者单位Univ Sfax, Fac Sci, Dept Biol, Lab Biol & Ecophysiol Vegetaux Milieu Aride, Sfax, Tunisia
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GB/T 7714
Jeddi, Kaouthar,Chaieb, Mohamed. Changes in soil properties and vegetation following livestock grazing exclusion in degraded arid environments of South Tunisia[J],2010,205(3):184-189.
APA Jeddi, Kaouthar,&Chaieb, Mohamed.(2010).Changes in soil properties and vegetation following livestock grazing exclusion in degraded arid environments of South Tunisia.FLORA,205(3),184-189.
MLA Jeddi, Kaouthar,et al."Changes in soil properties and vegetation following livestock grazing exclusion in degraded arid environments of South Tunisia".FLORA 205.3(2010):184-189.
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