The present study describes a methodology to quantify the gross soil nitrogen balance (SNB) for agricultural land use in the Tagus Nitrate Vulnerable Zone (TVZ) between 1989 and 2016, including effects of implementation of the EC Nitrates Directive (ND, 91/676/EEC) since 2004. The study uses decadal information from National Agricultural Census at parish level and is supported by a Geographical Information System (GIS). The average SNB of the TVZ decreased significantly (p 

Agriculture around the world is one of the industries most affected by, and faced with responsibility to mitigate, climate change. Through improvements in technology and efficiency as well as changes to land use management, agriculture can make an important contribution to meeting global commitments such as the Paris agreement or the Sustainable Development Goals. Yet international carbon markets have not resulted in sufficiently high financial returns to motivate the full potential of land sector changes in Australia and globally.

The western Corn Belt region of the United States has become a hotspot for agricultural extensification and consequent land use and land cover changes. The goals of this research were to characterize geographic patterns of grassland loss resulting from cropland expansion in the eastern Dakotas, and to understand how these changes were associated with characteristics of individual farms and farm operators. We collected data on grassland conversion and other land use decisions through a mail survey of farm operators in North and South Dakota.

Oil palm plantations in Indonesia have been linked to substantial deforestation in the 1990s and 2000s, though recent studies suggest that new plantations are increasingly developed on non-forest land. Without nationwide data to establish recent baseline trends, the impact of commitments to eliminate deforestation from palm oil supply chains could therefore be overestimated. We examine the area and proportion of plantations replacing forests across Sumatra, Kalimantan, and Papua up to 2015, and map biophysically suitable areas for future deforestation-free expansion.

Climate change is a major driver of land use with implications for the quality and quantity of water resources. We apply a novel integrated impact modelling framework (IIMF) to analyze climate change impacts until 2040 and stakeholder driven scenarios on water protection policies for sustainable management of land and water resources in Austria. The IIMF mainly consists of the sequentially linked bio-physical process model EPIC, the regional land use optimization model PASMA[grid], the quantitative precipitation/runoff TUWmodel, and the nutrient emission model MONERIS.

We assess the production impacts of a 100% conversion to organic agriculture in England and Wales using a large-scale linear programming model. The model includes a range of typical farm structures, scaled up across the available land area, with the objective of maximising food production. The effects of soil and rainfall, nitrogen (N) supply/offtake and livestock feed demand are accounted for. Results reveal major reductions in wheat and barley production, whilst the production of minor cereals such as oats and rye increase.

En 1962, René Dumont publiait L’ Afrique noire est mal partie. Ce livre, qui concernait essentiellement l’Afrique de l’Ouest, fit scandale à l’époque car il intervenait au lendemain des indépendances des colonies européennes, à un moment où les jeunes États africains pouvaient espérer un développement prometteur.

Cette journée de réflexion a été consacrée à la place de l’enjeu foncier en milieu rural dans les conflits civils contemporains dans les pays en développement. Elle a mobilisé le réseau élargi du Comité, avec plus d’une cinquantaine d’experts, de chercheurs et de décideurs venus contribuer au débat. Jean-Pierre Chauveau et Éric Léonard de l’IRD-Pôle foncier de Montpellier ont assuré le cadrage général et l’identification des principaux intervenants.[…]

Dans un contexte de pression accrue sur les terres et les ressources naturelles, la formalisation (reconnaissance légale et écrite) des droits fonciers est aujourd’hui présentée comme un moyen à privilégier pour une meilleure sécurisation foncière.

L’élevage pastoral et agropastoral (ou pastoralisme) est un système de production basé sur un élevage extensif valorisant majoritairement les parcours naturels. Utilisé par des communautés qui vivent dans des contextes souvent marginaux, il est associé à un mode de vie fondé sur un lien particulier entre l’homme, l’animal et la nature.

This article offers a general picture of the situation of rural youth in Latin America and the Caribbean(LAC). The population is described through its demographic dynamics, its socio-economiccharacteristics, the situation of priority groups (women and indigenous peoples) and subjects ofinterest for these particular population groups (use of IT, sexual and reproductive health, violence andsocial participation).