%0 Book Section
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%3 KRUG, forest change.pdf
%X Forest inventories constitute the basic documentation containing data (tables, maps) and information relevant to the planning and management of forest practices. Depending on the purpose of the forest inventory, a multitude of different data and information is collected, including, for example, measurements of some tree biophysical characteristics, production assessment, the industrial and economic value of the forest, all of which may be relevant to the efficient use of the forest resources. Different types of inventories, from reconnaissance inventories (a preliminary survey of low intensity that guides the more intensive inventory) to a large area inventories exist. The identification of the areas covered by forests constitutes the first step to initiate the forest inventory. In order to identify the areas covered by forests, the 'own' definition (see below) of forest (which is necessarily linked to other forest-related definitions, such as deforestation, afforestation, reforestation, forest degradation) needs to be agreed. Unfortunately, there is no universal definition that is used worldwide and for all purposes. An exhaustive compilation of forest definitions has been prepared and includes more than 650 different definitions. Similar work was carried out for other forest-related terms, such as deforestation, afforestation, and reforestation. An attempt to harmonize the different forest-related definitions to facilitate the country's reporting under different international conventions and processes (such as the United Nations Convention on Biological Diversity, the United Nations Framework Convention on Climate Change, the Forest Resources Assessments, for instance) has been carried out by the Food and Agriculture Organization of the United Nations (FAO). Complications arise in using a country's data in global forest assessments, since each country usually develops and applies its own definition of forest, based on the particular characteristics of its vegetation cover and the application to be given to the data and to the information collected. By 'own' definition it is meant the country's choice of the biophysical parameters of the vegetation cover (minimum height, minimum area cover, crown cover density) or minimum corresponding carbon stock that will be associated with a forest typology. Most forest definitions include some threshold parameters (usually presented as ranges) associated with biophysical characteristics of the forests (such as minimum height, minimum crown cover) and/or relate to the land use status of the land. Land use refers to the way the land is being used or the intents of use (it is, in general, a political/management decision). Since deforestation, afforestation, and reforestation activities are associated with changes in forest (in particular, changes in forest area), and considering that most of these terms are defined as conversions from one state to another (either forest to nonforest, or vice versa), the implications of the forest definition are multifold. Part of the definition of forest provided by FAO (and in the Kyoto Protocol to the United Nations Framework Convention on Climate Change) indicates that areas that are normally part of the forest area but which are temporarily unstocked (due to human intervention or natural causes) and which are expected to revert back to forest, are included under forest. The temporarily unstocked condition, if not associated with a land use change but only due to a temporary land cover change, does not characterize a convertion from a forest state into a nonforest state, and hence, deforestation. The status of the land is maintained as forest.
%E Burley, J.,
%E Evans, J.,
%E Youngquist, J. A.,
%T Forest change
%@secondarytype PRE LI
%K iventárfio, florestas, monitoramento ambiental, manejo florestal, imagens de satelite, satelite landsat, biomassa, carbono, imagem  Landsat, Amazônia (Região), inventory, forests, environmental monitoring, biomass, carbon, Landsat (satellite) thematic mapper.
%@nexthigherunit 8JMKD3MGPCW/3ER446E
%B Encyclopedia of forest sciences
%@usergroup Malu
%@usergroup administrator
%@usergroup marciana
%@group DSR-INPE-MCT-BR
%@group DSR-INPE-MCT-BR
%C London
%@copyholder SID/SCD
%@secondarykey INPE-10584-PRE/6046
%2 sid.inpe.br/sergio/2004/06.01.16.37.52
%I Elsevier
%P 989-997
%4 sid.inpe.br/sergio/2004/06.01.16.37
%D 2004
%@documentstage not transferred
%A Krug, Thelma,
%A Santos, João Roberto dos,
%@dissemination NTRSNASA; BNDEPOSITOLEGAL.
%@ 0-12-144160-7
%@area SRE