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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Land-use intensity affects range condition in arid to semi-arid Namibia
Journal of Arid Environments, Volume 52, No. 3, Year 2002
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Description
Range condition at sites of differing land-use intensity at a communal farm was assessed. Vegetation, soil and termite parameters were tested for their potential as indicators. The vegetation indicators did not discriminate between two sites of high and low land-use intensity. However, the soil fertility parameters provided interesting results. The phosphorus (P), nitrogen (N), organic carbon (OC), light fraction (LF), C:N and C:LF data indicate that nitrogen limitation is more critical under high land-use and grazing pressure. Organic carbon levels are generally low but reduced to critical levels under high land-use intensity; nutrients such as phosphorus and nitrogen are conserved in the system, whereas organic carbon losses are high and inputs low. The conversion of the 'active carbon pool' into the 'slow pool', a prerequisite for long-term soil resilience, is not taking place under high land-use intensity. Termites might play an important role in maintaining range condition. © 2002 Elsevier Science Ltd.
Authors & Co-Authors
Zeidler, Juliane
Namibia, Windhoek
Desert Research Foundation of Namibia
South Africa, Johannesburg
University of the Witwatersrand
Namibia, Windhoek
Integrated Environmental Consultants Namibia Iecn
Hanrahan, Shirley A.
South Africa, Johannesburg
University of the Witwatersrand
Scholes, Mary C.
South Africa, Johannesburg
University of the Witwatersrand
Statistics
Citations: 45
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1006/jare.2002.0990
ISSN:
01401963
Research Areas
Environmental
Sexual And Reproductive Health
Study Locations
Namibia