Browsing Journal Articles by Subject "Ecosystem"

Now showing items 1-6 of 6

Nitrogen dynamics in land cleared of alien vegetation (Acacia saligna) and impacts on groundwater at Riverlands Nature Reserve (Western Cape, South Africa)

Author: Jovanovic, Nebojsa ; Israel, S ; Tredoux, G ; Soltau, L ; Le Maitre, David C ; Rusinga, F ; Rozanov, A ; Van der Merwe, N Date: Jan 2009 Woody invading alien plants, many of which are nitrogen-fixing legumes (Fabaceae family), are currently cleared in South African catchments to reduce water loss and preserve streamflow, and for the restoration of the ecosystem. This study ... Read more
Non-linear partial least square regression increases the estimation accuracy of grass nitrogen and phosphorus using in situ hyperspectral and environmental data

Author: Ramoelo, Abel ; Skidmore, AK ; Cho, Moses A ; Mathieu, Renaud SA ; Heitkönig, IMA ; Dudeni-Tlhone, N ; Schlerf, M ; Prins, HHT Date: Jun 2013 Grass nitrogen (N) and phosphorus (P) concentrations are direct indicators of rangeland quality and provide imperative information for sound management of wildlife and livestock. It is challenging to estimate grass N and P concentrations using ... Read more
The possibilities and pitfalls presented by a pragmatic approach to ecosystem service valuation in an arid biodiversity hotspot

Author: O'Farrell, Patrick J ; De Lange, Willem J ; Le Maitre, David C ; Reyers, B ; Blignaut, JN ; Milton, SJ ; Atkinson, D ; Egoh, Benis N ; Maherry, A ; Colvin, C ; Cowling, RM Date: Jan 2011 Arid regions are home to unique fauna, flora, and vulnerable human populations, and present a challenge for sustainable land-use management. The authors undertook an assessment and valuation of three key services, grazing, tourism and water ... Read more
A scoping review of digital open badge ecosystems in relation to resource-constrained environments

Author: Motheeram, Preia ; Herselman, Martha E ; Botha, Adèle Date: Mar 2018 This article presents a scoping review of digital open badge ecosystems. A scoping review can be seen as a methodology for systematically assessing the breadth of available research literature. This article is aimed at identifying the nature, ... Read more
A survey of Vibrio cholerae O1 and O139 in estuarine waters and sediments of Beira, Mozambique

Author: Du Preez, M ; Van der Merwe, Martina R ; Cumbana, A ; Le Roux, Wouter J Date: Oct 2010 This study determined whether the estuarine and freshwater environment in Beira, Mozambique, serves as a reservoir of Vibrio cholerae O1 and O139. Ninety-nine estuarine water samples were collected at 6 sites in Beira. An additional 54 samples ... Read more
Tree cover in sub-Saharan Africa: rainfall and fire constrain forest and savanna as alternative stable states

Author: Staver, AC ; Archibald, S ; Levin, S Date: 2011 Savannas are known as ecosystems with tree cover below climate-defined equilibrium values. However, a predictive framework for understanding constraints on tree cover is lacking. The authors present a) a spatially extensive analysis of tree ... Read more

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Browsing Journal Articles by Subject "Ecosystem"

Browsing Journal Articles by Subject "Ecosystem"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect