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Displaying 166 - 170 of 284Criteria for selection and evaluation of biosphere reserves in support of the UNESCO MAB programme in South Africa
The biosphere reserve model is a global designation in accordance with UNESCO’s Man and the Biosphere Programme. Biosphere reserves are required to fulfil three functions as prescribed by UNESCO, namely conservation, sustainable development and logistic support. Worldwide, the 669 biosphere reserves in 120 countries are experiencing different degrees of effectiveness in fulfilling these functions.
The future of agriculture in the shrinking suburbs: The impact of real estate income and housing costs
This paper offers solutions to some of the challenges around maintaining productive agricultural land close to cities in countries facing a decline in urban populations. In such circumstances, some farmers have been observed to convert their land into real estate and leave farming before land prices decline, therefore decreasing the area of agricultural land close to large cities. In contrast, many suburban farmers in developed countries remain in farming even when land prices decline and suburbs shrink.
Typology and distribution of small farms in Europe: Towards a better picture
The contribution of small farms to local food supply, food security and food sovereignty is widely acknowledged at a global level. In the particular case of Europe, they often are seen as an alternative to large and specialised farms. Assessing the real role of small farms has been limited by a lack of information, as small farms are frequently omitted from agricultural censuses and national statistics.
Spatial and temporal patterns of land clearing during policy change
Environmental policies and regulations have been instrumental in influencing deforestation rates around the world. Understanding how these policies change stakeholder behaviours is critical for determining policy impact. In Queensland, Australia, changes in native vegetation management policy seem to have influenced land clearing behaviour of landholders. Periods of peak clearing rates have been associated with periods preceding the introduction of stricter legislation. However, the characteristics of clearing patterns during the last two decades are poorly understood.
Livestock-derived greenhouse gas emissions in a diversified grazing system in the endangered Pampa biome, Southern Brazil
Discussions about climate change have repeatedly regarded livestock as responsible for a significant contribution of greenhouse gas emissions. However, proper management schemes for livestock production may contribute to a reduction in emissions and, at the same time, induce optimization of production systems and intensification of food production.