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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 11.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Camboya, Laos, Myanmar, Tailandia, Viet Nam

    The first decade of the new millennium saw a boom in rubber prices. This led to rapid and widespread land conversion to monoculture rubber plantations in continental SE Asia, where natural rubber production has increased >50% since 2000. Here, we analyze the subsequent spread of rubber between 2005 and 2010 in combination with environmental data and reports on rubber plantation performance. We show that rubber has been planted into increasingly sub-optimal environments. Currently, 72% of plantation area is in environmentally marginal zones where reduced yields are likely.

  2. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015

    The importance of seed provisioning in food security and nutrition, agricultural development and rural livelihoods, and agrobiodiversity and germplasm conservation is well accepted by policy makers, practitioners and researchers. The role of farmer seed networks is less well understood and yet is central to debates on current issues ranging from seed sovereignty and rights for farmers to GMOs and the conservation of crop germplasm. In this paper we identify four common misconceptions regarding the nature and importance of farmer seed networks today.

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015

    The first public product of the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) is its Conceptual Framework. This conceptual and analytical tool, presented here in detail, will underpin all IPBES functions and provide structure and comparability to the syntheses that IPBES will produce at different spatial scales, on different themes, and in different regions.

  4. Library Resource
    Artículos de revistas y libros
    Marzo, 2015
    África, Etiopía

    This paper investigates how Borana pastoralists of southern Ethiopia have adapted resource use and livestock mobility practices amid multiple constraints including rising population, loss of rangeland to other pastoral communities and changing access rights, among others. This study uses an innovative multi-scalar methodology to understand how herders' grazing management decisions are made within a context of communal regulations governing access to resources.

  5. Library Resource
    Artículos de revistas y libros
    Enero, 2016
    Lesotho

    Maps are instrumental in the commodification of land and its exchange in markets. The critical cartog- raphy literature emphasizes the ‘‘power of maps” to (re)define property relations through their descrip- tive and prescriptive attributes. But how do maps work to achieve these outcomes? This paper examines the notion of maps as ‘‘inscription devices” that turn land into a commodity that can be bought and sold by investors. It is based on the analysis of a land reform project in the Southern African country of Lesotho.

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Benin, África, África occidental

    Since the rice crisis of 2007, the government of Benin has initiated many programmes for rice intensification. Comparison of three rice production areas shows that local rice production has indeed been increased by the facilities provided by the government programmes. Although broadly the same facilities (market outlet, credit, input, etc.) were provided to rice farmers in the three study areas, which are located close to one another, there are not only similar, but also some different outcomes with regard to farmers' practices.

  7. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015

    Combining remotely sensed Moderate Resolution Imaging Spectroradiometer (MODIS) data with Bangladesh Household Income and Expenditure Survey (HIES) data, this study estimates losses in rainfed rice production at the household level. In particular, we estimated the rice areas affected by drought and submergence from remotely sensed MODIS data and rice production from Household Income and Expenditure Survey (HIES) data for 2000, 2005 and 2010. Applying two limit Tobit estimation method, this study demonstrated that both drought and submergence significantly affected rice production.

  8. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015

    The impact of agricultural practices on CO2 emissions from soils needs to be understood and quantified to enhance ecosystem functions, especially the ability of soils to sequester atmospheric carbon (C), while enhancing food and biomass production. The objective of this study was to assess CO2 emissions in the soil surface following tillage abandonment and to investigate some of the underlying soil physical, chemical and biological controls.

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