Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 22.
  1. Library Resource
    Land Use and Land Tenure in Mongolia: A Brief History and Current Issues
    Documents et rapports de conférence
    janvier, 2006

    This essay argues that an awareness of the historical relation- ships among land use, land tenure, and the political economy of Mongolia is essential to understanding current pastoral land use patterns and policies in Mongolia. Although pastoral land use patterns have altered over time in response to the changing political economy, mobility and flexibility remain hallmarks of sustainable grazing in this harsh and variable climate, as do the communal use and management of pasturelands.

  2. Library Resource
    Articles et Livres
    décembre, 2009

    The Forest Service, U.S. Department of Agriculture's (USDA's) Northern Research Station Forest Inventory and Analysis program (NRS-FIA) uses digital land cover products derived from remotely sensed imagery, such as the National Land Cover Dataset (NLCD), for the purpose of variance reduction via postsampling stratification. The update cycle of the NLCD product is infrequent; NLCD 2001 was the first update since the release of NLCD 1992, and was not yet fully completed as of late 2006.

  3. Library Resource
    Articles et Livres
    décembre, 2003

    Forests in the Central Hardwood region are undergoing change in terms of area, volume, species composition, and forest structure. These forests are dominated by deciduous species; are increasing their average stand size, volume, and age; and, are experiencing woody plant species replacement as shade intolerant species are being replaced by more shade tolerant species. As changes progress, concerns are being raised regarding the potential for these lands to produce the wide array of benefits associated with timberland.

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