Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 3.
  1. Library Resource
    Documents de politique et mémoires
    septembre, 2004
    Thaïlande

    Conversion of climax Dipterocarp forest for agricultural purposes has resulted in a decline in productivity of light textured soils in Northeast Thailand. To quantify the degree of chemical degradation that these soils have undergone, a survey was undertaken of six paired sites where adjacent Dipterocarp forest soils were compared to continuously cropped systems that had been under production from 37-100 years. Surface charge fingerprints along with soil chemical and physical attributes were determined on selective depth intervals.

  2. Library Resource
    septembre, 2004

    The paper deals with an application of the least squares method (LSM) for the purposes of division and evaluation of land. This method can be used in all cases with redundant number of measurements. The traditional procedure of calculus of variations with the use of Lagrangian function is shown. If some additional conditions are included in the calculation, it is possible to evaluate the degree of deformation of the selected solution in relation to the measured quantities.

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