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Issuessegurança alimentarLandLibrary Resource
There are 4, 933 content items of different types and languages related to segurança alimentar on the Land Portal.
Displaying 625 - 636 of 1553

Urban agriculture's enterprise potential: Exploring vegetable box schemes in Cape Town

Journal Articles & Books
Dezembro, 2013
África do Sul
África austral

Urban agriculture is potentially an important element of land reform and economic development programmes in South Africa. The social value of urban agriculture, such as improving food security, developing a sense of community and promoting ecological conservation, is well documented. But in order to effectively contribute to development agendas, urban agriculture must also present viable, sustainable economic opportunities. This study sets forth vegetable box schemes as a context-appropriate, economically feasible urban agriculture enterprise for which there is growing consumer demand.

Spatial fields' dispersion as a farmer strategy to reduce agro-climatic risk at the household level in pearl millet-based systems in the Sahel: A modeling perspective

Journal Articles & Books
Dezembro, 2011

The rainfall pattern in the Sahel is very erratic with a high spatial variability. We tested the often reported hypothesis that the dispersion of farmers' fields around the village territory helps mitigate agro-climatic risk by increasing yield stability from year to year. We also wished to evaluate whether this strategy had an effect on the yield disparity among households in a village. Based on a network of approximately 60 rain gauges spread over 500km² in the Fakara region (Southwest Niger), daily rainfall was interpolated at 300m×300m resolution over a 12-year period.

Communicative Action to Level the Playing Field in Forest Plantations in Indonesia

Journal Articles & Books
Dezembro, 2014
Indonésia

The government of Indonesia allocated state land to private companies to establish forest plantations. However, ownership of this land was contested by some Sumatran communities. The plantation company, endorsed by the government, quickly developed a partnership to resolve the conflict, but this was unclear and inequitable. Action research was carried out to facilitate communication among stakeholders. This communicative action changed some perceptions and shared values began to emerge. A forum was established, which contributed to equitability producing a better partnership.

Problems of ensuring the national and collective food safety in the EAEU

Journal Articles & Books
Dezembro, 2014
Rússia

In view of creating in 2015 the Europe Asia economic union (EAEU) and its possible future expansion, there are considered issues of correlation in national and collective food security under conditions of countries integration, as well as basic lines of ensuring such security. The models of agrarian policy in EU and EAEU are compared, stressing that the EAEU statute document envisages the agreed (coordinated), but not uniform agrarian policy. That is the principal difference from EU agrarian policy, which contains uniform economic rules.

multi-scale assessment of human vulnerability to climate change in the Aral Sea basin

Journal Articles & Books
Dezembro, 2015

Vulnerability to climate change impacts is defined by three dimensions of human–environmental systems, such as exposure, sensitivity, and adaptive capacity. Climate change affects various aspects of human–environmental interactions, such as water stress, food security, human health, and well-being at multiple spatial and temporal scales. However, the existing protocols of vulnerability assessment fail to incorporate the multitude of scales associated with climate change processes.

Agrobiodiversity for food security, health and income

Journal Articles & Books
Dezembro, 2013
África
Ásia

By the year 2050, agriculture will have to provide the food and nutrition requirements of some 9 billion people. Moreover, to maintain that level of productivity indefinitely it must do so using environmentally sustainable production systems. This task will be profoundly complicated by the effects of climate change, increasing competition for water resources and loss of productive lands.

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

Journal Articles & Books
Dezembro, 2011
Etiópia

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.

LAND RESOURCES OF THE MEDITERRANEAN: STATUS, PRESSURES, TRENDS AND IMPACTS ON FUTURE REGIONAL DEVELOPMENT

Journal Articles & Books
Dezembro, 2014
Argélia
Líbia
Egito
Sudoeste Asiático
Norte de África

The Mediterranean region covers about 854 million ha, but only 118 million (or 14 per cent) are suitable for agricultural production. In North Africa and the Middle East (MENA), agricultural land covers about 5 per cent; in Egypt and Algeria, it occupies less than 4 per cent and, in Libya, less than 2 per cent of the total national land area. Across the Mediterranean region land use divides between natural pastures/rangelands (ca. 15 per cent), forests and woodlands (ca. 8 per cent), with the ca.

problem of property in industrial fisheries

Journal Articles & Books
Dezembro, 2014

Fisheries systems are widely considered to be ‘in crisis’ in both economic and ecological terms, a considerable concern given their global significance to food security, international trade and employment. The most common explanation for the crisis suggests that it is caused by weak and illiberal property regimes. It follows that correcting the crisis involves the creation of private property rights that will restore equilibrium between the profitable, productive function of fishing firms and fish stocks in order to maximize ‘rent’.

Analysis of multi-temporal SPOT NDVI images for small-scale land-use mapping

Journal Articles & Books
Dezembro, 2011
Índia

Land-use information is required for a number of purposes such as to address food security issues, to ensure the sustainable use of natural resources and to support decisions regarding food trade and crop insurance. Suitable land-use maps often either do not exist or are not readily available. This article presents a novel method to compile spatial and temporal land-use data sets using multi-temporal remote sensing in combination with existing data sources.