Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2005.04.014 |
Soil quality gradients around water-points under different management systems in a semi-arid savanna, South Africa | |
Smet, M; Ward, D | |
通讯作者 | Smet, M |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
出版年 | 2006 |
卷号 | 64期号:2页码:251-269 |
英文摘要 | Over 70% of South Africa is too arid for crop farming and is used for either commercial livestock ranching, communal livestock ranching, or game ranching. The inherently different management characteristics of these ranching systems and their effects on vegetation dynamics makes rangeland degradation a contentious issue. We used 500-m-long grazing gradients around water-points to evaluate the effects of management type on soil quality. Results showed significant negative effects of management type on soil parameters (i.e. soil pH, nitrogen, and organic carbon) within 0-100 m from the water-point. Commercial livestock ranching had the greatest negative effect on the immediate area around the water-point. Beyond 100 m, no effect of herbivore activity on soil parameters was detected under any management system. (c) 2005 Elsevier Ltd. All rights reserved. |
英文关键词 | semi-arid rangeland pastoralism wildlife rangeland degradation soil condition grazing gradients |
类型 | Article |
语种 | 英语 |
国家 | South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000234621200005 |
WOS关键词 | LAND DEGRADATION ; EASTERN BOTSWANA ; GRAZING SYSTEMS ; VEGETATION ; IMPACT ; RANGELAND ; KALAHARI ; PRODUCTIVITY ; ECOSYSTEMS ; NITROGEN |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/151869 |
作者单位 | (1)Univ Stellenbosch, Dept Conservat Ecol, ZA-7602 Matieland, South Africa |
推荐引用方式 GB/T 7714 | Smet, M,Ward, D. Soil quality gradients around water-points under different management systems in a semi-arid savanna, South Africa[J],2006,64(2):251-269. |
APA | Smet, M,&Ward, D.(2006).Soil quality gradients around water-points under different management systems in a semi-arid savanna, South Africa.JOURNAL OF ARID ENVIRONMENTS,64(2),251-269. |
MLA | Smet, M,et al."Soil quality gradients around water-points under different management systems in a semi-arid savanna, South Africa".JOURNAL OF ARID ENVIRONMENTS 64.2(2006):251-269. |
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