Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2495/RAV110041 |
Is shrub removal an appropriate management strategy in shrub-encroached woodlands? | |
Daryanto, S.; Eldridge, D. J. | |
通讯作者 | Daryanto, S. |
会议名称 | 3rd International Conference on Management of Natural Resources, Sustainable Development and Ecological Hazards |
会议日期 | 2011 |
会议地点 | MALAYSIA |
英文摘要 | Encroachment of shrubs into open woodland is a global phenomenon affecting drylands worldwide. Encroachment generally reduces pastoral productivity by reducing grass cover for livestock. Consequently, a range of mechanical methods such as ploughing have been used in an attempt to remove encroaching shrubs. Apart from the high cost, ploughing has been shown to have deleterious and often inconsistent effects on woodland ecosystems. Our work showed that soil under shrub patches contain generally higher levels of nutrients and are preferred sites of animal disturbance. However, ploughing and grazing reduced the number of vegetated patches, altered landscape heterogeneity, and often had species-specific effects, potentially leading to a dominance of ploughing- or grazing-resistant shrub species. With ploughing resulting in reductions in soil nutrients, long-term increases in shrub density rather than reductions, and the lack of sustained grass cover, we suggest that mechanical shrub removal is an inappropriate method for managing shrub-encroached woodlands. In the context of pastoralism, alternative approaches such as time-controlled grazing or rotational grazing (similar to transhumant systems) would be more appropriate management strategies. An alternative perspective, which is increasing in popularity, is to value encroached woodlands in terms of the ecosystem benefits they provide. These include habitat for animals, sinks for carbon dioxide, ecotourism and water supplies. |
英文关键词 | ploughing grazing arid shrubs soil disturbance woodland Australia spatial distribution land management |
来源出版物 | MANAGEMENT OF NATURAL RESOURCES, SUSTAINABLE DEVELOPMENT AND ECOLOGICAL HAZARDS III |
ISSN | 1743-3541 |
出版年 | 2012 |
卷号 | 148 |
页码 | 37-46 |
EISBN | 978-1-84564-533-5 |
出版者 | WIT PRESS |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Australia |
收录类别 | CPCI-S |
WOS记录号 | WOS:000304040400004 |
WOS关键词 | GRAZING SYSTEMS ; VEGETATION ; QUEENSLAND ; CARBON ; DESERT ; RECRUITMENT ; RECOVERY |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/300607 |
作者单位 | Univ New S Wales, Evolut & Ecol Res Ctr, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, Australia |
推荐引用方式 GB/T 7714 | Daryanto, S.,Eldridge, D. J.. Is shrub removal an appropriate management strategy in shrub-encroached woodlands?[C]:WIT PRESS,2012:37-46. |
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