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There are 2, 240 content items of different types and languages related to couverture du sol on the Land Portal.

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Potential to expand sustainable bioenergy from sugarcane in southern Africa

Journal Articles & Books
Décembre, 2011
Afrique

The Cane Resources Network for Southern Africa evaluated how bioenergy from sugarcane can support sustainable development and improve global competitiveness in the region. The assessment of six countries with good contemporary potential for expanding sugarcane cultivation described in this paper was part of their analysis. Its principal objective was to identify land where such production will not have detrimental environmental and/or socio-economic impacts.

Human activities directly alter watershed dissolved silica fluxes

Journal Articles & Books
Décembre, 2012
États-Unis d'Amérique

Controls on chemical weathering, such as bedrock geology, runoff, and temperature, are considered to be the primary drivers of Si transport from the continents to the oceans. However, recent work has highlighted terrestrial vegetation as an important control over Si cycling. Here we show that at the regional scale (Southern New England, USA), land use/land cover (LULC) is an important variable controlling the net transport of Si from the land to the sea, accounting for at least 40% of dissolved Si (DSi) fluxes.

Quantification and assessment of changes in ecosystem service in the Three-River Headwaters Region, China as a result of climate variability and land cover change

Journal Articles & Books
Décembre, 2016
Chine

Rapid and periodic assessment of the impact of land cover change and climate variability on ecosystem services at regional levels is essential to understanding services and sustainability of ecosystems. This study focused on quantifying and assessing the changes in multiple ecosystem services in the Three-River Headwaters Region (TRHR), China in 2000–2012.

The influence of soil cover structure on the intensity of anthropogenic transformation of the soils of temperately arid and forest-outlier steppe

Journal Articles & Books
Décembre, 2014
Fédération de Russie

In 2013-2014 field research, during which 56 full-height cuts of 5 soil regions of a subband of moderately droughty steppe and steppe with kolkis of Altai Region were put and analysed, was conducted. In the soil cover structure (SCS) the share of chernozem soils is from 65.8% to 68.0%, with prevalence of ordinary chernozems (40.1-48.0%) over lixivious chernozems (17.5-25.7%). Chernozem and meadow and meadow and chernozem soils takes from 13.4% to 18.3%, and the soil of the salted row - from 2.8% to 8.1%.

Do Native Warm-season Grasslands Near Airports Increase Bird Strike Hazards?

Journal Articles & Books
Décembre, 2013

Bird aircraft collisions (bird strikes) are a recognized safety hazard and land uses that attract birds hazardous to aircraft should be avoided on and near airports. Many airfields contain large areas of anthropogenic grassland habitats, often dominated by cool season grasses. Land managed as native warm season grasses (NWSG) potentially could increase bird strike hazards on and near airports by attracting hazardous birds and harboring small mammals that are prey for hazardous raptors.

Habitat characterization and potential distribution of Tylototriton vietnamensis in northern Vietnam

Journal Articles & Books
Décembre, 2013
Viet Nam

The habitat preferences of the endemic Vietnam Crocodile Newt, Tylototriton vietnamensis were investigated on two scales: (1) at Yen Tu Nature Reserve, Bac Giang Province, Vietnam, while compiling information about pond occupancy and developing a qualitative comparison among breeding sites and (2) by developing a Species Distribution Model based on climate and land cover data identifying further suitable habitats in northern Vietnam. A factor analysis followed by a multiple linear regression showed 94% support for our occupancy ranking model. Our results suggest that T.

Potential Overestimation of Carbon Sequestration in the Forested Wildland-Urban Interface in Northern New England

Journal Articles & Books
Décembre, 2012

Forest area determined from remote sensing-derived land cover maps alone at moderate resolution may not appropriately reflect dynamics of housing development in the forested wildland-urban interface (WUI). We conducted a study to quantify how housing development could affect estimates of forest carbon sequestration (FCS) in northern New England, where the percentage of WUI in relation to total land area is nearly double the national average.

Representing composition, spatial structure and management intensity of European agricultural landscapes: A new typology

Journal Articles & Books
Décembre, 2016
Europe

Comprehensive maps that characterize the variation in agricultural landscapes across Europe are lacking. In this paper we present a new Europe-wide, spatially-explicit typology and inventory of the diversity in composition, spatial structure and management intensity of European agricultural landscapes. Agricultural landscape types were characterized at a 1km2 resolution based on Europe-wide datasets that represent land cover, landscape structure and land management intensity.

Evaluating exposure to land degradation in association with repetitive armed conflicts in North Lebanon using multi-temporal satellite data

Journal Articles & Books
Décembre, 2014

Repetitive armed conflicts may be directly and indirectly responsible for severe biophysical modification to the environment. This, in turn, makes land more susceptible to degradation. Mapping and monitoring land degradation are essential for designing and implementing post-conflict recovery plans and informed policy decisions. The aim of this work was to evaluate the effect of repetitive armed conflicts on land degradation along the coastal zone of North Lebanon using multi-temporal satellite data.

Assessing the long-term impact of climatic variability and human activities on the water resources of a meso-scale Mediterranean catchment

Journal Articles & Books
Décembre, 2014
France

This article addresses the critical need for a better quantitative understanding of how water resources from the Hérault River catchment in France have been influenced by climate variability and the increasing pressure of human activity over the last 50 years. A method is proposed for assessing the relative impacts of climate and growing water demand on the decrease in discharge observed at various gauging stations in the periods 1961–1980 and 1981–2010.

Revolutionary Land Use Change in the 21st Century: Is (Rangeland) Science Relevant?

Journal Articles & Books
Décembre, 2012

Rapidly increasing demand for food, fiber, and fuel together with new technologies and the mobility of global capital are driving revolutionary changes in land use throughout the world. Efforts to increase land productivity include conversion of millions of hectares of rangelands to crop production, including many marginal lands with low resistance and resilience to degradation. Sustaining the productivity of these lands requires careful land use planning and innovative management systems.

Spatial and temporal analysis of land cover changes and water quality in the Lake Issaqueena watershed, South Carolina

Journal Articles & Books
Décembre, 2014

Monitoring changes in land cover and the subsequent environmental responses are essential for water quality assessment, natural resource planning, management, and policies. Over the last 75 years, the Lake Issaqueena watershed has experienced a drastic shift in land use. This study was conducted to examine the changes in land cover and the implied changes in land use that have occurred and their environmental, water quality impacts.