Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 9514.
  1. Library Resource
    Articles et Livres
    décembre, 2011
    Suède, Royaume-Uni, Danemark, Europe

    The objective of this review paper is to analyze the efficiency of environmentally motivated taxes on virgin raw materials. We analyze both the economic–theoretical foundations of virgin natural resource taxation, and the empirical experiences of aggregates taxes i.e., taxes on, for instance, gravel, rock, stone, etc. in three European countries. These include Sweden, Denmark and the United Kingdom.

  2. Library Resource
    Articles et Livres
    décembre, 2012

    Manure is applied to cropland areas with varying surface cover to meet single-year or multiple-year crop nutrient requirements. The objectives of this field study were to: (1) examine runoff water quality characteristics following land application of manure to sites with and without wheat residue, (2) compare the water quality impacts of land application of manure to meet 0-, 1-, 2-, 4-, and 8-year P-based requirements for corn, and (3) evaluate the effects of varying runoff rates on runoff nutrient loads.

  3. Library Resource
    Articles et Livres
    décembre, 2015

    There are many controversies and conflicts surrounding land management in the Great Basin. The conflicts often revolve around the maintenance of native plant and animal communities. This paper outlines some of the historical aspects of plant community change and some of the unanticipated impacts of policies applied to the Great Basin during Euro-American exploration and settlement. This narrative provides readers with some background on the turbulent history of the Great Basin, and suggests the need for a coordinated vision for future Great Basin land management.

  4. Library Resource
    Articles et Livres
    décembre, 2011
    Ouzbékistan

    Inefficient irrigation and the excessive use of water on agricultural land in the Aral Sea Basin over several decades have led to saline soils. The main objective of this paper is to identify the environmental predictors to model the spatial distribution of soil salinity in a highly irrigated landscape. Soil salinity at farm scale was measured in the topsoil (Total Dissolved Solids, TDS) and down to a depth of 1.5m by electromagnetic conductivity meter (CMv) over a regular grid covering an area of approximately 15km² in Khorezm Province, Uzbekistan.

  5. Library Resource
    Articles et Livres
    décembre, 2012

    The thesis of this article is that the now extensive contemporary literature on the economics of property rights has generated more heat than light. Economists have invoked at least five distinct theories of ownership or property rights in their work. Unfortunately, authors frequently fail to acknowledge the existence of competing theories of property rights that stand as conceptual rivals to the theory that they, often implicitly, invoke.

  6. Library Resource
    Articles et Livres
    décembre, 2015
    Inde

    The paper presents the development of a groundwater potential index (GWPI) map of the Araniar River basin, India, through an overlay analysis of climatic, geologic, geomorphic, soil and land use/land cover features of the basin using Landsat5 Thematic Mapper (TM) data and ArcGIS9.2. A correlation analysis of the developed GWPI map was carried out with a yield map of the basin to standardize the weights assigned to each theme.

  7. Library Resource
    Articles et Livres
    décembre, 2011
    Inde

    India’s farm sector sustains livelihoods for hundreds of millions of rural people, but faces serious management challenges for land, water, and energy resources. Growing dependence on groundwater threatens water resources sustainability and power sector viability. Sustaining India’s rising prosperity rests on managing groundwater. This study shows that raising power tariffs in the farm sector to achieve efficiency and sustainability of groundwater use is both socially and economically viable. The question is about how to introduce this shift.

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