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Issuesutilisation des terresLandLibrary Resource
There are 9, 801 content items of different types and languages related to utilisation des terres on the Land Portal.
Displaying 1609 - 1620 of 4598

Long-term impact of chronosequential land use change on soil carbon stocks on a Swedish farm

Journal Articles & Books
Décembre, 2008
Europe septentrionale

Agricultural practices and land use significantly influence soil carbon storage. The processes that are affected by land use and management are generally understood, but uncertainties in projections are high. In this paper, we investigate the long-term effects of chronosequential land use change from grassland to cropland and vice versa on soil carbon stock dynamics in four fields on a Swedish farm. Between 1850 and 1920, three of the fields were converted from grassland into cropland, and one was converted back to grassland in 1971.

Multi-temporal landsat images based on eco-environmental change analysis in and around Chah Nimeh reservoir, Balochestan (Iran)

Journal Articles & Books
Décembre, 2014
Iran

Chah Nimeh reservoirs have served as a water storage facility, especially during droughts over the last three decades. It is also an important wintering site for migratory birds. In this study, thematic mapper time-series data were derived from Landsat images for prolonged droughts that occurred in two satellite images (2002 and 2011). The data derived from these images were used for the detection of changes in land cover and water storage in the reservoirs. First, a vegetation cover map was produced using soil-adjusted vegetation index and field sampling.

Bayesian belief networks to analyse trade-offs among ecosystem services at the regional scale

Journal Articles & Books
Décembre, 2016
Belgique

Knowledge on trade-offs and synergies among ecosystem services is crucial for the design of land use strategies that optimize ecosystem service delivery. Correlation coefficients, obtained through pairwise comparison of ecosystem service provision maps, have been put forward as suitable indicators to quantify these interactions. However, for more in depth analyses of trade-offs and synergies where driving forces of interactions need to be determined, more sophisticated methods are needed.

Historical landscape dynamics of Inner Mongolia: patterns, drivers, and impacts

Journal Articles & Books
Décembre, 2015

CONTEXT: Understanding the causes and consequences of land use and land cover change in drylands is crucial for global sustainability. Inner Mongolia consists of arid and semiarid ecosystems of global importance. OBJECTIVES: Our main goal was twofold: to review the patterns and drivers of land use and land cover change in Inner Mongolia, and to discuss ecological impacts and strategies for promoting landscape and regional sustainability. METHODS: We took an interdisciplinary and retrospective approach, based on historical records and remote sensing data.

Risk-based modelling of diffuse land use impacts from rural landscapes upon salmonid fry abundance

Journal Articles & Books
Décembre, 2011

Research has demonstrated that landscape or watershed scale processes can influence instream aquatic ecosystems, in terms of the impacts of delivery of fine sediment, solutes and organic matter. Testing such impacts upon populations of organisms (i.e. at the catchment scale) has not proven straightforward and differences have emerged in the conclusions reached.

Abomasal parasites in wild sympatric cervids, red deer, Cervus elaphus and fallow deer, Dama dama, from three localities across central and western Spain: relationship to host density and park management

Journal Articles & Books
Décembre, 2004
Espagne

A survey of abomasal parasites in cervids from Central Spain was conducted at 3 sites, Quintos de Mora (Toledo), Maluéñez de Arriba (Cáceres), and La Herguijuela (Cáceres). Commonly occurring helminths belonged to 3 polymorphic species of the Ostertagiinae: Spiculopteragia asymmetrica/S. quadrispiculata, Ostertagia leptospicularis/O. kolchida, and O. drozdzi/O. ryjikovi. Trichostrongylus axei was found in very few cases. Ostertagia drozdzi/O. ryjikovi and the minor male morphotype, S. quadrispiculata, are reported for the first time in red deer from Spain.

Rural–urban peripheries under socioeconomic transitions: Changing planning contexts, lasting legacies, and growing pressure

Journal Articles & Books
Décembre, 2016
Fédération de Russie
Bélarus
Europe orientale

The status of urban forests and other green open spaces has always been ambiguous within the context of rural-urban peripheries. On one hand, most European countries have introduced protected green zones around cities to contain their sprawl and to provide urban dwellers recreational space and sanitation services since the early days of city planning policies. On the other hand, the ecosystems of green open areas remain under high pressure due to high demand for suburban land, causing issues ranging from illegal dumping to ecosystem fragmentation and forest loss.

Aeolian processes and landscape change under human disturbances on the Sonid grassland of inner Mongolian Plateau, northern China

Journal Articles & Books
Décembre, 2014
Chine

Based on remote sensing monitoring, observations and experiments in wind tunnel and field, aeolian processes and landscape change of the Sonid grassland of Inner Mongolia Plateau in northern China were explored in this paper. Aeolian process was very strong and seriously affected by human disturbances on the Sonid grassland of Inner Mongolia Plateau. Sand transport rate of grassland increased quickly with the increase of desertification severities, especially at the very severe desertification stage of sand sheet emergence.

Using a multilevel approach to analyse the case of forest conflicts in the Terai, Nepal

Journal Articles & Books
Décembre, 2013
Népal

Recent years have witnessed an intensification of forest-related conflicts between various stakeholders in Nepal, particularly between the state and local people, over the control, management and use of forests in the southern plains of the Terai. This paper analyses the multiple dimensions of conflicts in Terai forestry policy and practice using a multilevel approach. Multilevel forest conflicts in the Terai are explained as a nested concept, existing at different overlapping levels (ranging from the global level to households).

Bayesian Network Application to Land Suitability Classification in the Sewage Sludge Amendment of Agricultural Soils

Journal Articles & Books
Décembre, 2014
Espagne

Sewage sludge (SS) amendment of agricultural soils has recently become an issue of great interest because improvements in wastewater treatment systems have increased production of this type of waste. This practice is known to benefit soil and crops. However, the potential contamination of the environmental matrices has been rarely assessed because suitable models and data regarding the diffuse contamination of SS in agricultural fields are limited.