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Global ecological zoning for the global forest resources assessment 2000







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    FRA 2000: A concept and strategy for ecological zoning for the global Forest Resources Assessment 2000 2002
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    A global ecological zoning (EZ) map is needed for carrying out the "Global Forest Resources Assessment 2000" (FRA 2000) presently being facilitated by the United Nations Food and Agriculture Organization. The underlying strategy for FRA’s ecological zoning closely reflects both the thematic and technical requirements of the map, and the many operational constraints for implementation. Characteristics and components of the FAO EZ classification include the use of the Köppen system (1931) as a bas is for the delineation of zones. Details of the Köppen system, along with comparisons to other global-level ecological schemes demonstrate the rationale behind the FRA approach (Table 1). The mapping work will be carried out principally using regional or national "potential vegetation" maps to define boundaries of ecological zones at the global level. Although using a variety of map inputs inevitably provokes methodological problems such as edge matching across adjacent maps, a protocol for co rrecting such problems was successfully developed and implemented during a pilot study. The results of the North America Pilot Study illustrate the overall concept, methods, and utility of the map in an operational context (Annex A).
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    Forest resources documentation, archiving and research for the Global Forest Resources Assessment 2000 2000
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    In the framework of the FRA 2000 and based upon a letter of agreement between FAO and University of Tuscia, a training period (as provided for by the rules of the Faculty of Forestry) has been carried out at FAO HQ as given in the following Terms of References.
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    Field documentation of forest cover changes for the Global Forest Resources Assessment 2000 2000
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    FAO, at the request of member nations and the world community, regularly monitors the world’s forests through the Forest Resources Assessment Programme. The next report, the Global Forest Resources Assessment 2000 (FRA 2000), will review the forest situation by the end of the millennium. FRA 2000 will include country-level information based on existing forest inventory data, regional investigations of land-cover change processes, and a number of global studies focusing on the interaction between people and forests. The FRA 2000 report is made public at the end of the year. Findings will be distributed on the World Wide Web in the year 2000. One component of FRA 2000 is a survey of forest cover changes using satellite remote sensing. The survey is based on a pan-tropical sample of 117 Landsat TM images from three points in time during the period 1980-2000. The images are interpreted as to observable changes in the forest cover, and will provide objective estimates on a regional level. T his working paper documents both quantitatively and qualitatively three observed forest cover changes in the northeastern part of Thailand. The objectives and methodology of the RSS are described in detail in the Forest Resources Assessment Working Paper number eight.

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