Arid
DOI10.1016/j.agee.2015.07.013
The influence of Saharan agro-pastoralism on the structure and dynamics of acacia stands
Blanco, Julien1; Genin, Didier2,3; Carriere, Stephanie M.1
通讯作者Blanco, Julien
来源期刊AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
EISSN1873-2305
出版年2015
卷号213页码:21-31
英文摘要

Trees play a crucial role in drylands, where they are often considered as keystone species for ecosystems and for local livelihoods. In particular in the Saharan region, Vachellia tortilis subsp. raddiana (ex. Acacia tortilis subsp. raddiana) are multi-purpose acacia trees for people and contribute to the overall ecosystem functioning. Despite progress in research, acacia stands in this region are poorly documented and little is known on their interactions with human Saharan populations. On the basis of a multidisciplinary approach, the aim of this study was to assess the structure and dynamics of Saharan acacia stands in south-western Morocco and the influence of human activities and practices. Interviews and participant observations were performed in two villages and individual acacia trees were measured in contrasting topography, microhabitat and land use situations. The acacia stands were located in cultivated and browsed areas where trees were used and shaped in the framework of human subsistence activities. In this context, the low-density acacia stands (4.8 trees/ha) showed high regeneration (47.8%) and recruitment rates, and low mortality (3.3%). Land use had more effect on stand structures than topography or microhabitat. Tree regeneration and density were especially high in cultivated areas. Most trees showed traces of pruning (60.3% of them) and debarking (33.9%), but with no correlation with tree mortality. Environmental and anthropogenic factors jointly contributed to the structure and dynamics of acacia stands, and no threat to their sustainability was observed. Even though further investigation would be required to better distinguish environmental and anthropogenic factors and to draw long-term conclusions, our results suggest that Saharan agro-pastoralism activities are not necessarily incompatible with acacia tree conservation, contrary to the commonly admitted postulate in Morocco. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Vachellia tortilis subsp raddiana Acacia Drylands local practices Agro-pastoral systems Tree measurement Morocco
类型Article
语种英语
国家France
收录类别SCI-E
WOS记录号WOS:000362141100003
WOS关键词RADDIANA SAVI BRENAN ; TORTILIS SUBSP RADDIANA ; RED-SEA HILLS ; NEGEV DESERT ; TREE POPULATIONS ; AFRICAN SAVANNA ; ARID ZONES ; TUNISIA ; DESERTIFICATION ; MORTALITY
WOS类目Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向Agriculture ; Environmental Sciences & Ecology
来源机构French National Research Institute for Sustainable Development
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185641
作者单位1.IRD, UMR 220, GRED, F-34394 Montpellier 5, France;
2.IRD, F-13331 Marseille 3, France;
3.Aix Marseille Univ, UMR 151, LPED, F-13331 Marseille 3, France
推荐引用方式
GB/T 7714
Blanco, Julien,Genin, Didier,Carriere, Stephanie M.. The influence of Saharan agro-pastoralism on the structure and dynamics of acacia stands[J]. French National Research Institute for Sustainable Development,2015,213:21-31.
APA Blanco, Julien,Genin, Didier,&Carriere, Stephanie M..(2015).The influence of Saharan agro-pastoralism on the structure and dynamics of acacia stands.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,213,21-31.
MLA Blanco, Julien,et al."The influence of Saharan agro-pastoralism on the structure and dynamics of acacia stands".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 213(2015):21-31.
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
[Blanco, Julien]的文章
[Genin, Didier]的文章
[Carriere, Stephanie M.]的文章
百度学术
百度学术中相似的文章
[Blanco, Julien]的文章
[Genin, Didier]的文章
[Carriere, Stephanie M.]的文章
必应学术
必应学术中相似的文章
[Blanco, Julien]的文章
[Genin, Didier]的文章
[Carriere, Stephanie M.]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。