NDLI: Patterns and changes of land use and land-use efficiency in Africa 1980–2005: an analysis based on the human appropriation of net primary production framework

Content Provider	Springer Nature Link
Author	Fetzel, Tamara Niedertscheider, Maria Haberl, Helmut Krausmann, Fridolin Erb, Karl Heinz
Copyright Year	2015
Abstract	African land systems play a decisive role in addressing future sustainability challenges for food and energy supply—in Africa and potentially elsewhere. Knowledge on the magnitude and efficiency of current land use and its socio-economic frame conditions is scarce but required to provide an appropriate basis for estimating production potentials and efficiency improvements. We apply the human appropriation of net primary production (HANPP) framework to analyze African land systems and their dynamics between 1980 and 2005. HANPP measures human-induced changes in ecological biomass flows and allows analyzing the efficiency with which humans use the natural resource NPP (Net Primary Production). In 2005, African HANPP amounts to 20 %, which is below the global average of 23 %, and has grown significantly (+55 %) since 1980. HANPP efficiency (i.e., the ratio of used biomass extraction to total HANPP) is low (35 %) in contrast to the global average of 48 %. Large regional variations (ranging from 18 % in Central Africa to >100 % in Northern Africa) and only small improvements of +11 % on average have been observed. In the study period, the growth of HANPP has been mostly driven by land-use expansion. We conclude that the observed low HANPP efficiency in Africa suggests that there may be potentials for improving the efficiency of biomass production on existing land-uses rather than increasing output trough further land expansion. We discuss policy implications that could help better utilizing existing potentials to increase land-use efficiency in a sustainable manner.
Starting Page	1507
Ending Page	1520
Page Count	14
File Format	PDF
ISSN	14363798
Journal	Regional Environmental Change
Volume Number	16
Issue Number	5
e-ISSN	1436378X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-11-18
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Africa HANPP Land-use change Land-use efficiency HANPP efficiency Biomass Climate Change Climate Change/Climate Change Impacts Oceanography Geography Regional/Spatial Science Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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