Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2013.07.004 |
Rangeland management impacts on the properties of clayey soils along grazing gradients in the semi-arid grassland biome of South Africa | |
Kotze, E.1; Sandhage-Hofmann, A.2; Meinel, J. -A.2; du Preez, C. C.1; Amelung, W.2 | |
通讯作者 | Sandhage-Hofmann, A. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2013 |
卷号 | 97页码:220-229 |
英文摘要 | The grassland biome of South Africa is a major resource for livestock farming; yet the soils of these rangelands are stressed differently by various management systems. The aim of this study was to investigate how basic soil properties respond to different management systems. For this purpose we sampled rangeland management systems under communal (continuous grazing), commercial (rotational grazing) and land reform (mixture of grazing systems) farming. Within each of these systems a grazing gradient was identified with decreasing grazing pressure with increasing distance to the water points. Results showed that communal farms with continuous grazing were generally depleted in the respective nutrient stocks. The depletion increased with rising grazing pressure. Along that line there was a breakdown of macroaggregates with losses of the C and N stored therein. However, the commercial farms also exhibited a decline of macroaggregates and their associated C content nearby the water points. Aggregate fractionation is a sensitive indicator for detecting the beginning of soil degradation in this biome; yet, degradation was less pronounced under the rotational grazing of the commercial farms than under communal property right conditions. Hence, soil analyses confirm that fences and appropriate grazing periods are needed to manage these rangelands sustainably. (C) 2013 Elsevier Ltd. All rights reserved. |
英文关键词 | Continuous grazing Piosphere Rangeland management systems Rotational grazing Soil aggregates Soil organic matter |
类型 | Article |
语种 | 英语 |
国家 | South Africa ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000326361800027 |
WOS关键词 | AGGREGATE STABILITY ; PHYSICAL-PROPERTIES ; LAND DEGRADATION ; WATERING POINTS ; NORTHERN CHINA ; INNER-MONGOLIA ; LOESS PLATEAU ; CARBON ; QUALITY ; 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/2XILL650/178084 |
作者单位 | 1.Univ Orange Free State, Dept Soil Crop & Climate Sci, ZA-9300 Bloemfontein, South Africa; 2.Univ Bonn, Inst Crop Sci & Resource Conservat Soil Sci & Soi, D-53115 Bonn, Germany |
推荐引用方式 GB/T 7714 | Kotze, E.,Sandhage-Hofmann, A.,Meinel, J. -A.,et al. Rangeland management impacts on the properties of clayey soils along grazing gradients in the semi-arid grassland biome of South Africa[J],2013,97:220-229. |
APA | Kotze, E.,Sandhage-Hofmann, A.,Meinel, J. -A.,du Preez, C. C.,&Amelung, W..(2013).Rangeland management impacts on the properties of clayey soils along grazing gradients in the semi-arid grassland biome of South Africa.JOURNAL OF ARID ENVIRONMENTS,97,220-229. |
MLA | Kotze, E.,et al."Rangeland management impacts on the properties of clayey soils along grazing gradients in the semi-arid grassland biome of South Africa".JOURNAL OF ARID ENVIRONMENTS 97(2013):220-229. |
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