Knowledge Resource Center for Ecological Environment in Arid Area
Soil Indicators of Rangeland Degradation in a Semi-arid Communal District in South Africa | |
Moussa, Abdoulaye Saley1; Van Rensburg, Leon1; Kellner, Klaus1; Bationo, Andre2 | |
通讯作者 | Moussa, Abdoulaye Saley |
会议名称 | International Scientific Conference on Desertification and Drylands Research |
会议日期 | JUN 19-21, 2006 |
会议地点 | Tunis, TUNISIA |
英文摘要 | Rangeland degradation is a major threat to sustainable livestock production in South Africa. The changes in aboveground vegetation have mainly been used to describe rangeland degradation, but little research has been carried-out to assess the extent of soil degradation, particularly in communally managed grazing lands. The objective of this study is to provide some baseline reference indicators of soil quality and changes at three communal managed grazing sites (Austrey, Southey and Tseoge) in the Bophirima District in the North-West Province. This on-going study forms part of the Desert. Margins Program (DMP) in South Africa. Soils from benchmark plots (grazed and adjacent ungrazed exclosure) were monitored for indicators such as pH, organic carbon and phosphorus, dehydrogenase, beta-glucosidase and acid phosphatase in 2005 and 2006. The soils are predominantly sandy (+/- 95%) with low fertility (organic carbon ranging between 0.06% to 0.10%, and phosphorus from 6.3 to 8.66 mg kg(-1) irrespective of grazing or exclusion). At all sites, there were few significant differences between grazed and ungrazed plots for soil chemical properties, or for enzymes activities, but the sites did differ. The results were presented to and discussed with community members during workshops to raise awareness on soil degradation. At this early stage, it. was difficult to detect significant trends of soil properties resulting from grazing management. Long-term monitoring and further indicators are required for a thorough assessment of-soil properties responses. Furthermore, as land (soil) degradation is not only about the land, but also about people, a multi/interdisciplinary approach should be followed in analyzing soil degradation issues in these areas. |
英文关键词 | Range degradation grazing management communal sites capacity-building |
来源出版物 | FUTURE OF DRYLANDS |
出版年 | 2008 |
页码 | 383-+ |
ISBN | 978-1-4020-6969-7 |
出版者 | SPRINGER |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | South Africa;Kenya |
收录类别 | CPCI-S ; CPCI-SSH |
WOS记录号 | WOS:000262471100026 |
WOS类目 | Biodiversity Conservation ; Environmental Sciences ; Environmental Studies |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/297111 |
作者单位 | 1.NorthWest Univ, Sch Environm Sci & Dev, ZA-2520 Potchefstroom, South Africa; 2.Inst CIAT, Trop Soil Biol & Fertility, Nairobi, Kenya |
推荐引用方式 GB/T 7714 | Moussa, Abdoulaye Saley,Van Rensburg, Leon,Kellner, Klaus,et al. Soil Indicators of Rangeland Degradation in a Semi-arid Communal District in South Africa[C]:SPRINGER,2008:383-+. |
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