Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2012.10.020 |
Vegetation impoverishment despite greening: A case study from central Senegal | |
Herrmann, S. M.1; Tappan, G. G.2 | |
通讯作者 | Herrmann, S. M. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
![]() |
ISSN | 0140-1963 |
出版年 | 2013 |
卷号 | 90页码:55-66 |
英文摘要 | Recent remote sensing studies have documented a greening trend in the semi-arid Sahel and Sudan zones of West Africa since the early 1980s, which challenges the mainstream paradigm of irreversible land degradation in this region. What the greening trend means on the ground, however, has not yet been explored. This research focuses on a region in central Senegal to examine changes in woody vegetation abundance and composition in selected sites by means of a botanical inventory of woody vegetation species, repeat photography, and perceptions of local land users. Despite the greening, an impoverishment of the woody vegetation cover was observed in the studied sites, indicated by an overall reduction in woody species richness, a loss of large trees, an increasing dominance of shrubs, and a shift towards more arid-tolerant, Sahelian species since 1983. Thus, interpretation of the satellite-derived greening trend as an improvement or recovery is not always justified. The case of central Senegal represents only one of several possible pathways of greening throughout the region, all of which result in similar satellite-derived greening signals. (C) 2012 Elsevier Ltd. All rights reserved. |
英文关键词 | Desertification NDVI Remote sensing Sahel Species richness Woody vegetation |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000314485600008 |
WOS关键词 | POSITIVE INTERACTIONS ; NURSE PLANTS ; RESTORATION ; ENVIRONMENTS ; FACILITATION ; METAANALYSIS ; FOREST |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | University of Arizona ; United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/178017 |
作者单位 | 1.Univ Arizona, SNRE, OALS, Tucson, AZ 85719 USA; 2.USGS, EROS, Data Ctr Sioux Falls, SD 57198 USA |
推荐引用方式 GB/T 7714 | Herrmann, S. M.,Tappan, G. G.. Vegetation impoverishment despite greening: A case study from central Senegal[J]. University of Arizona, United States Geological Survey,2013,90:55-66. |
APA | Herrmann, S. M.,&Tappan, G. G..(2013).Vegetation impoverishment despite greening: A case study from central Senegal.JOURNAL OF ARID ENVIRONMENTS,90,55-66. |
MLA | Herrmann, S. M.,et al."Vegetation impoverishment despite greening: A case study from central Senegal".JOURNAL OF ARID ENVIRONMENTS 90(2013):55-66. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Herrmann, S. M.]的文章 |
[Tappan, G. G.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Herrmann, S. M.]的文章 |
[Tappan, G. G.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Herrmann, S. M.]的文章 |
[Tappan, G. G.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。