Arid
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-+
ISBN978-1-4020-6969-7
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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