désertification
Desertification: land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities
Source: UNCCD, 2011
Sediments deposited by (paleo) flash floods can hold valuable information on processes of environmental change, land degradation or desertification.
A very effective tool to combat desertification is revegetation. Promising species for this purpose are the evergreen shrubs of the genus Atriplex. The objective of the research was to study the growing responses of Atriplex halimus under different thermal regimes and to evaluate the biomass accumulation of selected clones.
Recent preoccupations regarding possible negative effects of pollution, inappropriate land management, climate change, desertification, erosion, compaction or over-exploitation on soils has led to initiatives for the survey of soils.
Spanish mountains have been affected by the expansion of shrubs and forests since the mid‐20th century.
Agriculture is major sector in the economy of Central Asia. The sustainable use of agricultural land is therefore essential to economic growth, human well-being, social equity, and ecosystem services. However, salinization, erosion, and desertification cause severe land degradation which, in turn, degrade human health and ecosystem services.
The study region is one of the most endangered area from wind erosion in the country. This process, coupled with recurrent droughts in last decades and the mishandling of productive practices have generated desertification. This study presents a review of the interaction of these processes based on literature, field survey and perception of producers.
Marrakech, 11 November 2016 – A new report launched today by the UN’s International Fund for Agricultural Development (IFAD) reveals the crucial role the world’s drylands play in buffering the negative impacts of climate change, land degradation and drought.
Source: Médiaterre