Library Resource
Articles et Livres
décembre, 2003
Résultats de la recherche
Résultats de la recherche
Showing items 1 through 9 of 1375.-
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Library ResourceArticles et Livresdécembre, 2007Europe
In Europe, grassland is one of the dominant forms of land use. Within 20 years, the area of permanent grasslands and pastures in Western Europe has declined by 12%. Semi-natural grasslands are often hot spots of biodiversity and are threatened both by intensive farming and by the abandonment of farmland in marginal areas. In this review, we show that biodiversity, climate change, C sequestration and farming systems issues are highly interconnected in grassland ecosystems.
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Library ResourceDocuments de politique et mémoiresoctobre, 2009
Agricultural sectors play a key role in the economics of climate change. Land as an input to agricultural production is one of the most important links between economy and the biosphere, representing a direct projection of human action on the natural environment. Agricultural management practices and cropping patterns have a vast effect on biogeochemical cycles, freshwater availability and soil quality. Agriculture also plays an important role in emitting and storing greenhouse gases.
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Library ResourceArticles et Livresdécembre, 2015
In many regions of the world, soil erosion is one of the main land degradations processes that reduce the soil productivity by removing fertile topsoil layers, thus decreasing levels of organic matter and the nutrients. Therefore erosion researches constitute an important part of the research on the soils. The erosion risk of soils can be evaluated directly carried out in the field, greenhouses or laboratory by means of some experiments or indirectly based on developing and applying models that gives risk expectations for large areas.
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Library ResourceArticles et Livresnovembre, 2016
This study focuses on land use in the tsunami inundation area caused by the Great East Japan Earthquake, particularly land use history in the tsunami-affected area. Hanagama District, Yamamoto City, Miyagi prefecture, was selected as the study area. Land use were examined using aerial photographs taken in 1975, 2010 and 2013. Relationships between land use change and the disaster hazard areas, natural land conditions were analyzed with GIS.
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Library ResourceArticles et Livresdécembre, 2008
The degradation of soils with high sand content, in the southwest of the state of Rio Grande do Sul, is due to the vegetal cover withdrawal, forming sandy areas called "areais", which pose a risk to animal husbandry and the prairie ecosystem. A technique of revegetation with cover crops such as Avena strigosa Schieb. and Lupinus albescens H. et Arn., was developed to reduce the soil particle movement by eolic erosion.
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Library ResourceArticles et Livresdécembre, 2016
Context: Various species of forest trees are commonly used for ornamental purposes and are therefore frequently found in nonforest ecosystems. They constitute an important component of the so-called trees outside forests (TOF).
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Library Resource
Articles et Livresdécembre, 2016SerbieImportant hydrological changes, or generally water resources changes, are being observed in Serbia, as well as in many other parts of the world. Many national and international projects and studies address climate change and its impact on water resources. Some focus solely on the impact of climate change, while others also assess the impact of land use changes and/or changes in human use of water.
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Library ResourceDocuments et rapports de conférencedécembre, 2017Lettonie
Utilised agricultural area is one of the most important natural resources in Latvia, which provides population with food and promotes the operation of agricultural companies. Unfortunately, appropriate land management is a problem for the majority of agricultural land owners, thereby adversely affecting the efficiency of resource use and increasing possibilities for the resource depletion. Constantly new solutions are searched for in Latvia to avert inefficient use of utilised agricultural areas and reduction of land as resource.
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Library ResourceArticles et Livresdécembre, 2012
Land degradation has become a growing concern with the current increase in demand for arable land. Sustainable land management and land restoration practices are required in order to meet the demands to provide food and other services. Adoption of improved practices has, however, not been widespread partly because of a lack of clarity on the true economic value and setting of proper financial incentives. This review focuses on the economic costs of land degradation as a prelude to two ongoing initiatives involving the United Nations Convention to Combat Desertification (UNCCD).
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