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DOI10.1088/1748-9326/aa768b
Nested archetypes of vulnerability in African drylands: where lies potential for sustainable agricultural intensification?
Sietz, D.1,2,3; Ordonez, J. C.3; Kok, M. T. J.4; Janssen, P.4; Hilderink, H. B. M.5; Tittonell, P.2,6; Van Dijk, H.3,7
2017-09-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2017
卷号12期号:9
文章类型Article
语种英语
国家Netherlands; Argentina
英文摘要

Food production is key to achieving food security in the drylands of sub-Saharan Africa. Since agricultural productivity is limited, however, due to inherent agro-ecological constraints and land degradation, sustainable agricultural intensification has been widely discussed as an opportunity for improving food security and reducing vulnerability. Yet vulnerability determinants are distributed heterogeneously in the drylands of sub-Saharan Africa and sustainable intensification cannot be achieved everywhere in cost-effective and efficient ways. To better understand the heterogeneity of farming systems' vulnerability in order to support decision making at regional scales, we present archetypes, i.e. socio-ecological patterns, of farming systems' vulnerability in the drylands of sub-Saharan Africa and reveal their nestedness. We quantitatively indicated the most relevant farming systems' properties at a sub-national resolution. These factors included water availability, agro-ecological potential, erosion sensitivity, population pressure, urbanisation, remoteness, governance, income and undernourishment. Cluster analysis revealed eight broad archetypes of vulnerability across all drylands of sub-Saharan Africa. The broad archetype representing better governance and highest remoteness in extremely dry and resource-constrained regions encompassed the largest area share (19%), mainly indicated in western Africa. Moreover, six nested archetypes were identified within those regions with better agropotential and prevalent agricultural livelihoods. Among these patterns, the nested archetype depicting regions with highest erosion sensitivity, severe undernourishment and lower agropotential represented the largest population (30%) and area (28%) share, mainly found in the Sahel region. The nested archetype indicating medium undernourishment, better governance and lowest erosion sensitivity showed particular potential for sustainable agricultural intensification, mainly in western and some parts of southeastern and eastern Africa. Insights into the nestedness of archetypes allowed a more differentiated discussion of vulnerability and sustainable intensification opportunities, enhancing the evaluation of key interlinkages between land management and food security. The archetypes may support the transfer of successful intensification strategies based on similarities among the drylands in sub-Saharan Africa.


英文关键词archetype transferability pattern nestedness socio-ecological system sustainable intensification dryland
领域气候变化
收录类别SCI-E ; SSCI
WOS记录号WOS:000410459000001
WOS关键词LAND CHANGE SCIENCE ; SUB-SAHARAN AFRICA ; FOOD SECURITY ; ECOLOGICAL INTENSIFICATION ; SMALLHOLDER AGRICULTURE ; NORTHEAST BRAZIL ; GLOBAL CHANGE ; WEST-AFRICA ; LIVELIHOODS ; DYNAMICS
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/34255
专题气候变化
作者单位1.Wageningen Univ, Soil Phys & Land Management Grp, Wageningen, Netherlands;
2.Wageningen Univ, Farming Syst Ecol Grp, Wageningen, Netherlands;
3.Wageningen Univ, Sociol Dev & Change Grp, Wageningen, Netherlands;
4.Netherlands Environm Assessment Agcy, The Hague, Netherlands;
5.Natl Inst Publ Hlth & Environm, Bilthoven, Netherlands;
6.Inst Nacl Tecnol Agr, San Carlos De Bariloche, Rio Negro, Argentina;
7.African Studies Ctr, Leiden, Netherlands
推荐引用方式
GB/T 7714
Sietz, D.,Ordonez, J. C.,Kok, M. T. J.,et al. Nested archetypes of vulnerability in African drylands: where lies potential for sustainable agricultural intensification?[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(9).
APA Sietz, D..,Ordonez, J. C..,Kok, M. T. J..,Janssen, P..,Hilderink, H. B. M..,...&Van Dijk, H..(2017).Nested archetypes of vulnerability in African drylands: where lies potential for sustainable agricultural intensification?.ENVIRONMENTAL RESEARCH LETTERS,12(9).
MLA Sietz, D.,et al."Nested archetypes of vulnerability in African drylands: where lies potential for sustainable agricultural intensification?".ENVIRONMENTAL RESEARCH LETTERS 12.9(2017).
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