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Displaying 861 - 865 of 1605

Drivers of wetland disturbance and biodiversity impacts on a tropical oceanic island

Journal Articles & Books
Diciembre, 2012
Mauricio

Wetlands are biologically important elements of landscapes and among the most threatened ecosystems on Earth. On the island of Mauritius, many remaining wetlands are being rapidly converted and fragmented by intense land-use demands. We surveyed 209 coastal wetlands on Mauritius to assess their biophysical attributes, land-use activities, and patterns of disturbance, to help identify factors that threaten wetland biodiversity. Most wetlands exhibited severe edge-related disturbances and more than half were fragmented.

Effects of rapid urban sprawl on urban forest carbon stocks: Integrating remotely sensed, GIS and forest inventory data

Journal Articles & Books
Diciembre, 2012
China

Research on the effects of urban sprawl on carbon stocks within urban forests can help support policy for sustainable urban design. This is particularly important given climate change and environmental deterioration as a result of rapid urbanization. The purpose of this study was to quantify the effects of urban sprawl on dynamics of forest carbon stock and density in Xiamen, a typical city experiencing rapid urbanization in China.

Fertile ground? Options for a science–policy platform for land

Journal Articles & Books
Diciembre, 2012

The United Nations Convention to Combat Desertification (UNCCD) remains the only ‘Rio Convention’ that is not well served by the scientific community and lacks the equivalent of an IPCC (Intergovernmental Panel on Climate Change) or the proposed IPBES (Intergovernmental Science–Policy Platform on Biodiversity and Ecosystem Services).

South Africa's national REDD+ initiative: assessing the potential of the forestry sector on climate change mitigation

Journal Articles & Books
Diciembre, 2012
Sudáfrica
África
África austral

Reducing emissions from deforestation and forest degradation in developing countries (REDD+) is regarded by its proponents as one of the more efficient and cost effective ways to mitigate climate change. There was further progress toward the implementation of this mechanism at the 16th Conference of Parties (COP) in Cancun in December 2010. Many countries in southern African, including South Africa, have not been integrated (do not participate) into the UN-REDD+ programme, probably due to their low forest cover and national rates of deforestation.

Ecological classification of land and conservation of biodiversity at the national level: The case of Italy

Journal Articles & Books
Diciembre, 2012
Italia

The aims of this study are to describe the ecological classification of land in Italy and to show how the resulting land units can act as reliable frameworks for coarse scale environmental analyses that can be used to implement national conservation strategies. We first collected, homogenised and drew physical thematic maps, which were then linked to biological and human features. We then performed a gap analysis of land heterogeneity compared with Natural Protected Areas and Natura2000 network on the basis of three categories: Total gaps, Partial gaps, and Protected.