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There are 2, 543 content items of different types and languages related to système d'exploitation agricole on the Land Portal.
Displaying 1057 - 1068 of 1717

Accuracy and cost of models predicting bird distribution in agricultural grasslands

Journal Articles & Books
Décembre, 2010

Numerous agro-environmental indicators have been developed to assess the impact of farming systems on biodiversity. They can be combined into logistic models for predicting the presence of species of ecological interest. In general, several models are available for a given species and their practical value depends on their accuracy and the cost of measurement of their input variables.

Sustaining protected areas: Identifying and controlling deforestation and forest degradation drivers in the Ankasa Conservation Area, Ghana

Journal Articles & Books
Décembre, 2013
Ghana
Afrique

Although protected areas in Africa contain possibly the highest repositories of carbon and thus can play a role in mitigating the effects of climate change through carbon sequestration, they are threatened due to increasing levels of deforestation and forest degradation (DFD). However, little information is available on the on-site causes of DFD in these areas. This paper estimates the levels of DFD and identifies the drivers in the Ankasa Conservation Area (ACA) in Ghana as a case study. A survey was used to identify both direct and underlying factors that promote the DFD.

set of guidance for the management of grazing Units in the cereal-sheep system of Castile-La Mancha (South-Central Spain)

Journal Articles & Books
Décembre, 2003

Extensive livestock farming systems in the Less Favored Areas (LFA) of the European Union (EU) are under social stress and requirement to adapt their production practices to new economic and social realities. This research argues that a restructuring plan for the cereal-sheep system of Castile-La Mancha may represent economic and ecological synergies. The potential implementation of a technical strategy (integrating cereal and sheep farming and increasing acreage of annual forage legumes) has been tested within a community-based research project carried out over three phases.

Land use/cover dynamics and their effects in the Gerado catchment, northeastern Ethiopia

Journal Articles & Books
Décembre, 2011
Éthiopie

This paper analyses the land use/cover dynamics of land degradation through the interpretation of aerial photographs (1958 and 1980) and 2006 SPOT-5 satellite image of the Gerado catchment. Other, non-visual data were gathered from personal interview and focus group discussions conducted in 2010 and 2011 with local elders, farmers and development (agricultural extension) agents. The results identified the presence of cultivated and rural settlement land, shrubland, woodland, bare land, grassland, urban built up area and forest.

Crop diversification in Thailand: Status, determinants, and effects on income and use of inputs

Journal Articles & Books
Décembre, 2011
Thaïlande

Following the national policy, the Department of Agriculture of Thailand has implemented a crop diversification program in several provinces of the country. This study, which was conducted in Nakhon Pathom Province, analyzed the extent of crop diversification and its determinants using primary information collected from 245 farm households using a structured questionnaire, and from selected farmer leaders and agricultural development officials. The study also assessed the effects of crop diversification on income and the inputs used.

Optimisation of the traditional land-use system in the Angolan highlands using linear programming

Journal Articles & Books
Décembre, 2014

This study used linear programming (LP) to analyse land-use alternatives in the traditional Umbundu farming system in the Angolan central highlands. Farmers of the region have traditionally produced maize and pulses for subsistence and vegetables and timber as cash crops. Different pasture and forest fallow rotations are used along catena production sites. The system is labour-intensive and uses animal traction. LP problems were formulated and solved for a baseline land-use alternative, improved diet alternative and maximal timber production alternative.

Carbon projects and Indigenous land in northern Australia

Journal Articles & Books
Décembre, 2014
Australie

Land activities contribute ~18% of total greenhouse gas emissions produced in Australia. To help reduce these emissions, the Carbon Farming Initiative (CFI) was implemented in 2011 to encourage land projects, which reduce the production of greenhouse gases and/or sequester carbon in the land. Prospective projects include savanna fire management and rangelands management, which have high relevance in northern Australia where Indigenous landholding is strong.

Land, landlords and sustainable livelihoods: The impact of agrarian reform on a coconut hacienda in the Philippines

Journal Articles & Books
Décembre, 2012
Philippines

Agrarian reform has been a key theme on the development agenda of many countries in the Global South for decades. Whilst such interventions are often pursued for political goals and in the interests of empowerment, there is often a mismatch between these goals and the actual outcomes achieved. Within this context, this study investigates the impacts of agrarian reform in Del Rosario, a former coconut hacienda in the Philippines.

Investigating syndromes of agricultural land degradation through past trajectories and future scenarios

Journal Articles & Books
Décembre, 2014
Italie

In the last decades, due to climate changes, soil deterioration and land use/land cover (LULC) changes, land degradation (LD) has become one of the most important issues at the global, regional and local scale. In concrete terms, LD determines a reduction in the productivity of a territory and in its capacity of providing ecosystem goods and services. “Syndromes” of LD can be assessed in the past, and scenarios, conversely, can be developed for the future, as information baselines for sustainable land management strategies and interventions.

Ecosystem services of regulation and support in Amazonian pioneer fronts: searching for landscape drivers

Journal Articles & Books
Décembre, 2014
Colombie
Brésil

Landscape dynamics result from forestry and farming practices, both of which are expected to have diverse impacts on ecosystem services (ES). In this study, we investigated this general statement for regulating and supporting services via an assessment of ecosystem functions: climate regulation via carbon sequestration in soil and plant biomass, water cycle and soil erosion regulation via water infiltration in soil, and support for primary production via soil chemical quality and water storage.

Land and water management of tidal lowlands: Experiences in Telang and Saleh, South Sumatra

Journal Articles & Books
Décembre, 2010
Indonésie

Indonesia has available over 20 million ha of tidal lowlands. In their natural state these are generally waterlogged areas that may be regularly inundated for prolonged periods. Almost 4 million ha of these tidal lowlands have been reclaimed, partly by spontaneous settlers and partly by the government.