文献详情
Material use and resource efficiency of African sub-regions
文献类型：期刊
通讯作者：Lu, YL (reprint author), Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China.; Zhang, Q (reprint author), Univ Victoria, Dept Civil Engn, Victoria, BC V8P 5C2, Canada.
期刊名称：JOURNAL OF CLEANER PRODUCTION影响因子和分区
年：2020
卷：247
ISSN：0959-6526
关键词：Material intensity; Africa; Resource policy; Material flow analysis; IPAT
所属部门：环境学院
摘要：Material flow analysis is one of the developed tools to analyze regional resource utilization and efficiency, but still, no holistic analysis has been done for African sub-regions. Africa and its sub-regions are experiencing a gradual but transitional development, leading to the steady growth of resource use. This study dived into African nations' material flow accounts and conducted a statistical evaluation of material use, resource efficiency and driving forces in different sub-regions of Afri ...More
Material flow analysis is one of the developed tools to analyze regional resource utilization and efficiency, but still, no holistic analysis has been done for African sub-regions. Africa and its sub-regions are experiencing a gradual but transitional development, leading to the steady growth of resource use. This study dived into African nations' material flow accounts and conducted a statistical evaluation of material use, resource efficiency and driving forces in different sub-regions of Africa between 1980 and 2017 to investigate resource use patterns in Africa. Our results reveal significant disparities of material use and distinguishable driving forces at the sub-regional level of Africa. During the last four decades, Western and Central Africa shows the highest cumulative material consumption at 54 Gt dominated by biomass consumption, while non-metallic minerals dominate the consumption in North Africa with a compounding annual growth rate of 4.5 %. Per capita domestic material consumption (DMC) in Southern Africa experiences a declining trend from >10 t/capita to 7 t/capita per year. Per capita DMC in other three sub-regions is increasing, in which North Africa now has the highest per capita DMC at 10 t/capita per year. Using the logarithmic mean divisia index (LMDI) technique, this study examines the IPAT equation in DMC at the sub-regional level of Africa. GDP growth has surpassed the impact of population growth in Southern Africa, while population growth is still the most significant driver in other three regions over a period of time. Technological factors have begun to offset material use in all sub-regions since 2000, and this offset is prominent in Southern Africa. Our results could be a basis to spur mutual communication and cooperation among African countries on the governance of sustainable resource production and use to improve the resource efficiency of African countries as a convergent and lasting trend. (C) 2019 Elsevier Ltd. All rights reserved. ...Hide

DOI：10.1016/j.jclepro.2019.119092
百度学术：Material use and resource efficiency of African sub-regions
语言：外文
人气指数：4
浏览次数：4
基金：National Natural Science Foundation of ChinaNational Natural Science Foundation of China [71761147001, 41420104004]; UNEP International Resource Panel with the Small Scale Funding Agreement (SSFA) [DTIE16-SC057]; CAS-TWAS fellowship
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