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Issueschangement climatiqueLandLibrary Resource
There are 5, 899 content items of different types and languages related to changement climatique on the Land Portal.
Displaying 541 - 552 of 1721

Boundary shift of potential suitable agricultural area in farming-grazing transitional zone in Northeastern China under background of climate change during 20th century

Journal Articles & Books
Décembre, 2013
Chine

Climate change affected the agricultural expansion and the formation of farming-grazing transitional patterns during historical periods. This study analyzed the possible range of the boundary shift of the potential suitable agriculture area in the farming-grazing transitional zone in the northeastern China during the 20th century.

Review of Quantitative Tools for Assessing the Diffuse Pollution Response to Farmer Adaptations and Mitigation Methods Under Climate Change

Journal Articles & Books
Décembre, 2011

In an era of global climate change, the agricultural sector faces the challenge of increasing the production of safe and nutritious food supplies to meet a growing world population while safeguarding the environment. Farmers will adapt their agricultural practices to a changing climate to safeguard against loss of production and to take advantage of any positive climatic conditions.

Challenges and opportunities in linking carbon sequestration, livelihoods and ecosystem service provision in drylands

Journal Articles & Books
Décembre, 2012
Afrique

Changes in land use and management practices to store and sequester carbon are becoming integral to global efforts that both address climate change and alleviate poverty. Knowledge and evidence gaps nevertheless abound. This paper analyses the most pressing deficiencies in understanding carbon storage in both soils and above ground biomass and the related social and economic challenges associated with carbon sequestration projects.

Biophysical suitability, economic pressure and land-cover change: a global probabilistic approach and insights for REDD+

Journal Articles & Books
Décembre, 2014
Europe

There has been a concerted effort by the international scientific community to understand the multiple causes and patterns of land-cover change to support sustainable land management. Here, we examined biophysical suitability, and a novel integrated index of “Economic Pressure on Land” (EPL) to explain land cover in the year 2000, and estimated the likelihood of future land-cover change through 2050, including protected area effectiveness.

Water content dynamics in a volcanic ash soil slope in southern Chile

Journal Articles & Books
Décembre, 2015
Chili

Andisols present exceptional physical properties, making up 24%), however, during summer they can reach volumetric water contents near to the permanent wilting point quickly at a depth of 5 cm. The water table altitude was directly related to the temporal changes of θFᵢₑₗd measured at a depth of 50 cm, highlighting the fact that the saturated and unsaturated zones are connected.

Estimation of runoff, peak discharge and sediment load at the event scale in a medium-size Mediterranean watershed using the AnnAGNPS model

Journal Articles & Books
Décembre, 2013

Sediment transport in rivers is an indicator of soil eroded from various sediment sources, of which agricultural land can be a significant one, and the intensity of the phenomenon provides a measure of land degradation at a watershed level.

Predicting the future effectiveness of protected areas for bird conservation in Mediterranean ecosystems under climate change and novel fire regime scenarios

Journal Articles & Books
Décembre, 2016
Espagne
Europe

AIM: Global environmental changes challenge traditional conservation approaches based on the selection of static protected areas due to their limited ability to deal with the dynamic nature of driving forces relevant to biodiversity. The Natura 2000 network (N2000) constitutes a major milestone in biodiversity conservation in Europe, but the degree to which this static network will be able to reach its long‐term conservation objectives raises concern.

ASSESSING THE IMPACTS OF CAP-AND-TRADE CLIMATE POLICY ON AGRICULTURAL PRODUCERS IN THE NORTHERN PLAINS: A POLICY SIMULATION WITH FARMER PREFERENCES AND ADAPTATION

Conference Papers & Reports
Décembre, 2010

The purpose of this study is to examine the possible local impacts of cap-and-trade climate policy on agricultural producers in the Northern Plains. This study explicitly considers farmer behavior with respect to agricultural opportunity in carbon offset provision and ability of adaptation to mitigate the production cost impact under a cap-and-trade climate policy.

Data at our fingertips, myths in our minds: recent grain price jumps as the ‘perfect storm’

Journal Articles & Books
Décembre, 2014
Inde
Chine

The onset of the grain price spikes in late 2007 heralded a heated discussion among economists and policy makers on the source of the problem and appropriate policy responses. The subsequent rounds of price surges hit landless poor consumers hard, and transferred billions of dollars from them to landowners worldwide. Economists offered a list of highly plausible explanations for the recent jumps in grain price levels.

assessment of nonindustrial private forest landowner willingness to harvest woody biomass in support of bioenergy production in Mississippi: A contingent rating approach

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

The economic feasibility of utilizing woody biomass to produce biofuel lies in the willingness to harvest by non-industrial private forest (NIPF) landowners, who control 71% of forestland in the southern United States. A mail survey was distributed to NIPF landowners throughout Mississippi to elicit their preferences concerning the utilization of logging residues from harvesting operations to produce bioenergy.

Almost 50� years of monitoring shows that climate, not forestry, controls long‐term organic carbon fluxes in a large boreal watershed

Journal Articles & Books
Décembre, 2014
Finlande

Here, we use a unique long‐term data set on total organic carbon (TOC) fluxes, its climatic drivers and effects of land management from a large boreal watershed in northern Finland. TOC and runoff have been monitored at several sites in the Simojoki watershed (3160� km²) since the early 1960s. Annual TOC fluxes have increased significantly together with increased inter‐annual variability. Acid deposition in the area has been low and has not significantly influenced losses of TOC.

Using� spectral analysis� of� Landsat-5� TM� images to map� coastal� wetlands� in the Amazon River mouth, Brazil

Journal Articles & Books
Décembre, 2014
Brésil

Tropical coastal wetlands form complex and dynamic ecosystems based on a mixture of vegetation, soil, and water components. Optical remotely sensed data have often been used to characterize and monitor these ecosystems, which are among the environments most threatened by climate change and anthropogenic activity worldwide.