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Showing items 1 through 9 of 308.
  1. Library Resource
    Conference Papers & Reports
    December, 2002

    The paper proposes the use of meta models to determine the optimal intertemporal management of soil and phosphorus losses from agricultural land. This approach allows finding a equilibrium of the economic and biophysical system simultaneously. In contrast to the existing literature the model takes account of nonlinear relationships and of a large number of agricultural activities. The mathematical problems arising from this complex setup are addressed and the model is solved numerically.

  2. Library Resource
    Conference Papers & Reports
    December, 2002
    United States of America

    The purpose of this paper has been to present quality-adjusted values for land in the United States and nine European countries using price and quantity data for 1990. Disregarding such differences in the quality-adjusted land input would generate biased estimates of the land input and thus of total factor productivity. Land quality adjustments could potentially be enhanced further with additional data on soil characteristics, climate, and other productivity-related characteristics.

  3. Library Resource
    Conference Papers & Reports
    December, 2002

    In this paper we develop a dynamic data-consistent way for estimating agricultural land use choices at a disaggregate level (district-level), using more aggregate data (regional-level). The disaggregation procedure requires two steps. The first step consists in specifying and estimating a dynamic model of land use at the regional level. In the second step, we disaggregate outcomes of the aggregate model using maximum entropy (ME). The ME disaggregation procedure is applied to a sample of California data.

  4. Library Resource
    Reports & Research
    June, 2002

    This work looks into the potential use of various instruments which rely on a close interaction between different segments of society (the public, the private and the third sectors) for increasing low income urban land development in Brazil. It is based on the recognition that the Brazilian housing problem is serious, threatening the development and environment of urban centres in the country, being also intimately related to the difficult access to adequate land by a significant portion of the urban population.

  5. Library Resource
    Reports & Research
    December, 2002
    Spain

    <font size="3"><p><em>"Addressing the Multi-scale Lapsus of Landscape"</em> with the sub-title <em>"Multi-scale landscape process modelling to support sustainable land use: A case study for the Lower Guadalhorce valley South Spain"</em> focuses on the role of landscape as the main driving factor behind many geo-environmental processes at different temporal and spatial levels.

  6. Library Resource
    Reports & Research
    December, 2002
    Iran

    <p>Rangelands, like other natural resources are subject to many changes. In Iran, one of the changes is the land tenure reform, that may have significant effects on both the land and the land user. Land tenure changes not only affect the life of the present, but also that of next generations, and involves very complex decision making. This decision should lead to a sustainable use of the land and contribute to the livelihood of the present and future generations.

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