Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1046/j.1365-2699.1999.00131.x |
The impacts of people and livestock on topographically diverse open wood- and shrub-lands in arid north-west Namibia | |
Sullivan, S | |
通讯作者 | Sullivan, S |
来源期刊 | GLOBAL ECOLOGY AND BIOGEOGRAPHY
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ISSN | 0960-7447 |
出版年 | 1999 |
卷号 | 8期号:3-4页码:257-277 |
英文摘要 | 1. It is generally considered that the open woodlands of north-west Namibia are experiencing widespread degradation due to over-use of resources by local herders. 2. Data are presented regarding community floristics, diversity, density, cover and population structure for woody vegetation. These are analysed in relation to abiotic factors of topography and substrate, and to settlement impacts represented indirectly by distance from settlement and directly by measures of branch cutting and browsing. 3. None of the vegetation indices upheld predicted patterns of degradation except on a small scale, confined to within settlements. Moreover, in nearly all cases, local settlement effects were within the range of variability observed at larger scales. 4. It is concluded that continuing perceptions and fears of degradation in this area relate more to ideology than evidence. In particular, it is argued that factors conferring resilience and persistence on both the environment and the regional herding economy are obscured by: (1) disregard for the implications of spatial and temporal scale in interpretations of ecological data; (2) a conceptual adherence to equilibrium dynamics that stresses density-dependent impacts of people and livestock over and above the role of abiotic factors in constraining and driving primary productivity; and (3) remnants of a colonial ideology, which tends to view ’traditional communal farming’ practices as environmentally degrading. |
英文关键词 | open woodland degradation desertification pastoralism policy scale biotic and abiotic factors traditional communal farming Namibia |
类型 | Article ; Proceedings Paper |
语种 | 英语 |
国家 | England |
收录类别 | CPCI-S ; SCI-E |
WOS记录号 | WOS:000084868000008 |
WOS关键词 | DESERT ; VEGETATION ; ECOLOGY ; REGION ; EQUILIBRIUM ; DEGRADATION ; CATCHMENT ; STABILITY ; COMMUNITY ; PATTERNS |
WOS类目 | Ecology ; Geography, Physical |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
来源机构 | University of London |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/137407 |
作者单位 | (1)Univ London Sch Oriental & African Studies, Dept Anthropol & Sociol, London WC1H 0XG, England;(2)Univ London Sch Oriental & African Studies, Dept Geog, London WC1H 0XG, England |
推荐引用方式 GB/T 7714 | Sullivan, S. The impacts of people and livestock on topographically diverse open wood- and shrub-lands in arid north-west Namibia[J]. University of London,1999,8(3-4):257-277. |
APA | Sullivan, S.(1999).The impacts of people and livestock on topographically diverse open wood- and shrub-lands in arid north-west Namibia.GLOBAL ECOLOGY AND BIOGEOGRAPHY,8(3-4),257-277. |
MLA | Sullivan, S."The impacts of people and livestock on topographically diverse open wood- and shrub-lands in arid north-west Namibia".GLOBAL ECOLOGY AND BIOGEOGRAPHY 8.3-4(1999):257-277. |
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