Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 87.
  1. Library Resource
    janvier, 1998
    Mexique

    Mexican rural reform has questioned the role of the peasantry and private national producers in agriculture. The reform followed a neoliberal paradigm for incorporating the nation into the global village. As part of a government strategy, land reform in Mexico aims to change entrepreneurial and land tenure patterns in rural areas into an individual, private, large-scale, and capitalist productive structure, and the land market is vital in allowing the land transfers needed to change the land tenure pattern.

  2. Library Resource
    Articles et Livres
    décembre, 2014
    Mexique

    In this study we analysed: (1) the biodiversity conservation capacity of Agroforestry Systems (AFS) in temperate highlands of the Tehuacán–Cuicatlán Valley, Central Mexico, (2) human cultural motives and actions for conserving such diversity and (3) problems endangering that capacity. We evaluated the richness and diversity of perennial plant species maintained in AFS through vegetation sampling of 14 agricultural plots and compared their composition with that of natural forests (14 plots of 500� m² each).

  3. Library Resource
    Articles et Livres
    décembre, 2012
    Mexique

    Agriculture must expand production for a growing population while simultaneously reducing its environmental impacts. These goals need not be in tension with one another. Here we outline a vision for improving both the productivity and environmental performance of agriculture in the US Corn Belt. Mean annual precipitation has increased throughout the region over the past 50 years, consistent with climate models that attribute it to a warming troposphere.

  4. Library Resource
    Articles et Livres
    décembre, 2014
    Mexique, Amérique centrale, Amérique du Sud

    Local people's involvement in the management of conservation initiatives is central to ongoing debates on the relative merits of distinct biodiversity conservation models. Since different governance models provide distinct opportunities for local people to participate in the management of protected areas, their knowledge of these governance models and motivation to collaborate will vary. This paper analyses cognisance and participation in (1) government-imposed biosphere reserves and (2) community conservation areas, in which ecotourism projects take place.

  5. Library Resource
    Documents de politique et mémoires
    octobre, 2001
    Mexique

    Water and watersheds are difficult to separate for management purposes.Providing irrigation as a supplement to rainfall for crop production requires considerablecollective action at the watershed level to mobilize labor and other resources, as well asto make decisions and implement the distribution of benefits. Small- scale waterharvesting irrigation systems in Mexico have endured for centuries.

  6. Library Resource
    Articles et Livres
    décembre, 2016
    Mexique

    Detailed observations of natural and anthropogenic disturbance events that impact forest structure and the distribution of carbon are essential to estimate changes in terrestrial carbon pools and the associated emissions and removals of greenhouse gasses. Recent advances in remote sensing approaches have resulted in annual and decadal estimates of land-cover change derived from observations using broad-scale moderate resolution imaging spectroradiometer (MODIS) 250 m–1 km imagery.

  7. Library Resource
    Articles et Livres
    décembre, 2008
    Mexique

    The importance of the role of local community forestry institutions towards forest conservation is exemplified through a comparison of two adjacent areas within the Central Yucatan Peninsular Region (CYPR) in which Land-Use Cover Change (LUCC) analyses were conducted. We also used logistic regression analyses to examine key environmental, socioeconomic and institutional drivers associated with deforestation.

  8. Library Resource
    Articles et Livres
    décembre, 2011
    Mexique

    Analysis of land-cover change in the seasonal tropical forests of the Southern Yucatán, Mexico presents a number of significant challenges for the fine-scale land-cover information required of land-change science. Subtle variation in mature forest types across the regional ecocline is compounded by vegetation transitions following agricultural land uses. Such complex mapping environments require innovation in multispectral classification methodologies. This research presents an application of a step-wise maximum likelihood/In-Process Classification Assessment (IPCA) procedure.

  9. Library Resource
    Documents et rapports de conférence
    décembre, 2001
    Mexique

    The constitutional reforms undertaken in Mexico in 1992, as well as the systematic implementation of a program of land rights regularization (Procede), aimed to improve the security and transferability of property rights in order to create the pre-conditions for better functioning of factor markets in rural areas. The paper examines the extent to which this has materialized by exploring systematic differences over time between certified and non-certified ejidos as well as the private sector.

  10. Library Resource
    Rapports et recherches
    mars, 2008
    Mexique, Canada

    As a NAFTA partner and Canada's third largest export market for agri-food products, developments in Mexico are of direct interest to Canada. Rural poverty, low productivity, poor infrastructure and unclear property rights for both land and water still inhibit the efforts of Mexico's government to improve competitiveness of its agricultural sector.

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