Water scarcity and land degradation are widespread problems that affect agricultural productivity, food security and environmental quality in several parts of the world, particularly in the dry areas. Sustainable management of soil and water is necessary to optimize the use of limited rainwater for crop production and to decrease soil erosion. One management option is utilizing rainfall more efficiently through water harvesting. In arid areas, different types of water harvesting techniques (WHT) are being developed by
Résultats de la recherche
Showing items 1 through 9 of 7.-
Library ResourceDocuments et rapports de conférencejuillet, 2013Asie occidentale, Jordanie
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Library ResourceDocuments et rapports de conférencefévrier, 2013Global
Land degradation is a serious problem, particularly on vulnerable agricultural lands to soil erosion, which
signifies the temporary or permanent decline in the productive capacity of the land (UN/FAO definition).
Erosion is one of the most common problems around the world. Sanders (2004) considers that erosion
and soil degradation issues have contributed to the decline of great civilizations in Egypt, China or
Greece. The annual costs of soil erosion in the US are estimated between US$ 30 billion and US$ 44 -
Library ResourceDocuments et rapports de conférencedécembre, 2013Afrique
Climate change represents a fundamental challenge to the sustainability of Africa‘s growth momentum. It is imperative therefore that African countries invest in mechanisms that would mainstream climate change into their development strategies to stave off its possible negative impacts.
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Library ResourceDocuments et rapports de conférenceoctobre, 2013Afrique
This paper focuses on the Conference Summary and Recommendations The Third Conference on Climate Change and Development in Africa (CCDA-III). The overall objective of the conference was to build on CCDA I and II and stimulate debate among experts and stakeholders on how opportunities in climate change can enhance Africa’s transformative and inclusive economic growth and development agenda. CCDA-I and II provided critical input in defining the programme and activities of Clim Dev-Africa, including investment in climate science data, information and service delivery in pilot
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Library ResourceDocuments et rapports de conférencedécembre, 2013Éthiopie, Afrique, Afrique orientale
Extensive land degradation in the Ethiopian Highlands jeopardizes rural livelihood. Intensified by increasing population pressure, farmers are forced to expand their arable land by deforestation and thus worsening the soil erosion problem. Through the application of various soil conservation measures, farmers and authorities try to prevent against further land degradation.
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Library ResourceDocuments et rapports de conférencedécembre, 2013
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Library ResourceDocuments et rapports de conférencedécembre, 2013Lettonie, Lituanie
The aim of the research is to analyse the landscape structure changes from the end of the Soviet times in 1974–1986 until 2005 when market economy existed in Lithuania. The changes of landscape structure were observed in 100 sample areas (squares) each of them having 2.5 km2 area and distributed in different landscape types. The changes in sample areas (squares) with determination of land cover structure transformations were observed using topographic photos and ortophoto images at a scale 1:10 000.
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