Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 18.
  1. Library Resource
    Documents de politique et mémoires
    décembre, 2008
    Global

    This article is an extract from the bigger document. This articles briefly highlights that the land distribution remains highly unequal in some regions,  Productivity growth of high-input agriculture has slowed down, Increased awareness regarding the detrimental effects of DDT has led to its elimination in many countries, Land under organic farming is increasing but remains concentrated in a few countries.

  2. Library Resource
    Documents de politique et mémoires
    décembre, 2008

    Today, natural and cultural reserves are being rapidly lost; however, no efficient protection approaches are being put forward. Existent reserves face with the danger of extinction as the result of the land-misuses and excessive utilisation. In order to make accurate and effective reserve management and planning decisions, optimal land-uses targeting the preservation ecological structure should be determined elaborately.

  3. Library Resource
    Documents de politique et mémoires
    janvier, 2008

    According to the Executive Order 12866, a qualitative and quantitative assessment for any Federal mandate resulting in annual expenditures of $100 million or more is required. This study determines how many of the approximately 34.5 million acres of CRP land is brought back in economic use, how that use is allocated between grazing and haying, and the economic impact.

  4. Library Resource
    Documents de politique et mémoires
    décembre, 2008
    Espagne

    The present research aims to obtain a better insight into the agreement between land evaluation results and actual crop spatial distribution by comparing biophysical land suitability with different crop frequency parameters and with crop rotations derived from multi-year crop maps. The research was carried out in the Flumen district (33,000 ha), which is located in the Ebro Valley (Northeast Spain). Land evaluation was based on a 1:100,000 soil survey according to the FAO framework for the main crops in the study area (alfalfa, winter cereals, maize, rice and sunflower).

  5. Library Resource
    Documents de politique et mémoires
    décembre, 2008
    Turquie

    That was to perform a determination of land suitability classes for agricultural land uses in Ankara Imrahor valley and vicinity with this study. First of all detailed survey and mapping of research area was performed with aid of satellite data and topographic maps then four different soil serials and their fourteen different mapping units were described. For this units, 38 different land uses were describe as their soil and meterological properties and calculated their suitability for this region and determined and mapping their land suitability classes for agricultural purposes.

  6. Library Resource
    Documents de politique et mémoires
    décembre, 2008
    Lettonie

    The Promotional Paper Forest Land Transformation in Latvia by Gunta Bāra has been developed at the Forest Faculty of the Latvian University of Agriculture between 2001 and 2007. Goal of the Promotional Paper: to identify the main problems in transformation of forest land in the Republic of Latvia and gaps in legislative instruments regulating the process of change of land use type, to prepare recommendations for their elimination, to develop a methodology for calculation of compensation for the losses caused to the state as a result of destruction of natural forest environment.

  7. Library Resource
    Documents de politique et mémoires
    décembre, 2008
    Suède, Canada, Nouvelle-Zélande

    In Canada, where public ownership of forestland is prevalent, a central decision facing policy makers is how to allocate timber resources to private forest companies. Debates tend to focus around what proportion of the annual harvest should be devoted to markets opposed to long-term contracts. To give a guide to policy makers, we surveyed forest firms from New Zealand and Sweden where this decision is based purely on a commercial basis. On average, mills source fifty percent of their fibre from the market.

  8. Library Resource
    Documents de politique et mémoires
    décembre, 2008
    Slovaquie

    The research of the landscape structure and its changes was carried out in a part of the Horná Orava region. Landscape structure was studied and compared in 2 periods (1958 and 2001). Two types of changes were identified: anthropogenic and succession. Succession processes were spontaneous, anthropogenic-conditioned or successive, which were linked with land use changes, reduction of traditional management of non-forest vegetation (mowing, grazing) and consequent climax succession.

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