Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 102.
  1. Library Resource
    Rapports et recherches
    juillet, 2010
    États-Unis d'Amérique

    From the advent of the application of satellite imagery to land cover mapping, one of the growing areas of research interest has been in the area of image classification. Image classifiers are algorithms used to extract land cover information from satellite imagery. Most of the initial research has focussed on the development and application of algorithms to better existing and emerging classifiers. In this paper, a paradigm shift is proposed whereby a committee of classifiers is used to determine the final classification output.

  2. Library Resource
    Rapports et recherches
    juin, 2015
    Chine, Norvège, Fédération de Russie, États-Unis d'Amérique

    Collective ownership of agricultural land and the remains of the administrative management of rural economy have imposed considerable insecurity on the land use rights of Chinese farmers. This insecurity constrains the movement of rural people, who fear that migration will jeopardise what land use rights they do enjoy. In this paper we describe the idiosyncratic uncertainty of land use rights, and verify its influence on migration decisions, with a special focus on the duration of migration.

  3. Library Resource
    Rapports et recherches
    février, 2015
    Terres australes et antarctiques françaises, France, Royaume-Uni, États-Unis d'Amérique

    We study the developable land market in French periurban and rural areas under urban influence. Theoretical aspects and empirical results are derived from urban economics to analyse the main determinants of the price of developable land: distance from the urban centres, population, inhabitantsí income, etc. We focus especially on option values that come from irreversibility of development of farmland into residential plots, with uncertainly and inflow of information from the market.

  4. Library Resource
    Rapports et recherches
    avril, 2015
    Brésil, États-Unis d'Amérique

    In this paper we analyze the Indirect Land Use Change (ILUC) effects of ethanol production expansion in Brazil through the use of an inter-regional, bottom-up, dynamic general equilibrium model calibrated with the 2005 Brazilian I-O table. A new methodology to deal with ILUC effects is developed, using a transition matrix of land uses calibrated with Agricultural Censuses data. Agriculture and land use are modeled separately in each of 15 Brazilian regions with different agricultural mix.

  5. Library Resource
    Rapports et recherches
    novembre, 2015
    Brésil, Norvège, États-Unis d'Amérique

    We examine the consequences of land tenure insecurity on economic growth in Brazil. We use an overlapping generations model with two sectors: an agricultural sector and a manufacturing sector. Land is specific to the agricultural sector and capital goods are specific to the manufacturing sector. Moreover land is a fixed production factor. Saving takes the form of either land or capital goods purchases, and saving composition depends on transaction costs generated by land tenure insecurity.

  6. Library Resource
    Rapports et recherches
    avril, 2018
    Mexique, États-Unis d'Amérique

    Mangroves are valuable socio-ecological ecosystems that provide vital goods and services to millions of people, including wood, a renewable natural capital, which is the primary source of energy and construction material for several coastal communities in developing countries. Unfortunately, mangrove loss and degradation occur at alarming rates. Regardless of the protection and close monitoring of mangrove ecosystems in Mexico during the last two decades, mangrove degradation and the loss of biodiversity is still ongoing.

  7. Library Resource
    Rapports et recherches
    septembre, 2013
    Norvège, Amérique du Sud, Amérique septentrionale, Asie

    This is the rst paper that estimates the global land use change impact of growth of the bioenergy sector. Applying time-series analytical mechanisms to fuel, biofuel and agricultural commodity prices and production, we estimate the long-rung relationship between energy prices, bioenergy production and the global land use change. Our results suggest that rising energy prices and bioenergy production signicantly contribute to the global land use change both through the direct and indirect land use change impact.

  8. Library Resource
    Rapports et recherches
    janvier, 2015
    Kenya, Norvège, États-Unis d'Amérique

    Constrained access to land is increasingly recognized as a problem impeding rural household welfare in densely populated areas of Africa. This study utilizes household and parcel level data from rural Kenya to explore the linkage between land access and food security. We find that a 10% increase in operated land size would increase household total food consumption per capita, cereal consumption per capita, non-cereal consumption, and home produced food consumption by 2.6%, 2.1%, 2.7% and 5.4%, respectively.

  9. Library Resource
    Rapports et recherches
    novembre, 2008
    Pologne, États-Unis d'Amérique

    The article makes an attempt to answer the question: how direct payments affected the land market in Poland? The first part of the article explains the theoretical aspects of direct payments as an instrument of agricultural policy and their prospective effectiveness. Also the special character of the solutions adopted by Poland in relation with the use of this instrument was shown. The second part presents the main problems of the land market in Poland, taking into account both the supply and the demand factors of this market.

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