Changes in landscape vegetation, forage plant composition and herding structure in the pastoralist livelihoods of East Pokot, Kenya
Changes in landscape vegetation, forage plant composition and herding structure in the pastoralist livelihoods of East Pokot, Kenya
复制标题
肯尼亚东波科特牧民生计景观植被、饲料植物组成和放牧结构的变化
DOI:
10.1080/17531055.2015.1134401
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发表时间:
2016
影响因子:
1.4
通讯作者:
中科院分区:
文献类型:
--
作者:
Oral evidence from pastoral Pokot on vegetation changes in the rangelands of northern Baringo District points to major changes in structure and biodiversity composition over the past century. A landscape of perennial grasses has turned into an Acacia-dominated bush-land. Pelil (Acacia nubica), talamogh (Acacia mellifera), or anyua (Acacia reficiens), which characterise the pastoral landscape today, have increased rapidly since the 1950s. This article compares perceptions of current changes in grass compositions with former accounts, highlighting local assessments of declining high-quality grasses such as abrute (Brachiaria deflexa, Setaria homonyma) or puyun (Eragrostis cilianensis). The changes described are linked to a number of causal factors (high grazing pressure, restriction of pastoral mobility, increasing population numbers), allowing us to historicise the profound change in landscape vegetation. The costs and benefits of bush encroachment are also examined. The tremendous increase in goat numbers, and the sizeable growth of camel herds, is closely connected to the increased availability of fodder plants for browsers. The article concludes by contrasting the views expressed on landscape by Pokot elders with scientific accounts of environmental change.
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影响因子:
4.7
作者:
A. Warren
通讯作者:
A. Warren
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
L. M. Fernández
通讯作者:
L. M. Fernández
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Rui Su
通讯作者:
Rui Su
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
B. Bianco
通讯作者:
B. Bianco
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
E. Fratkin
通讯作者:
E. Fratkin