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Download - RAISG - Instituto Socioambiental

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(TIN5). The area of potential newly recognized ITs is unknown. Based on the data compiled for the differentcountries, the ITs were classified in terms of their level of official recognition and the categoriesused by each country. This resulted in three classes: i) officially recognized lands of traditional use andoccupation; ii) traditionally used and occupied lands without official recognition now in the process ofbeing recognized (or lacking information on the official recognition process); and iii) territorial reservesor intangible zones (reserved for isolated indigenous peoples).The boundaries of PNAs and ITs used in this Atlas were complied and/or produced by the institutionsbelonging to <strong>RAISG</strong> based on a variety of different official and non-official sources (TIN4).PNAs in Amazonia cover a significant total surface area of 1,696,529 km 2 , corresponding to21.8% of Amazonia – excluding the overlaps of different categories of environmental protection andincluding the overlaps with Indigenous Territories, which equals 336,365 km 2 (TIN6). Systems of protectedareas are now being consolidated at national, regional and local level in various countries in theregion. Based on data compiled for each country, the PNAs were classified in terms of their administrativelevel (national or departmental/state) and the type of use of the areas, resulting in four classes: i)indirect use: protection of biodiversity, geological and scenic landscape (aesthetic quality) compatiblewith tourism, education and research; ii) direct use: protection of resources compatible with controlleduse following utilization plans; iii) direct/indirect use: mixed areas where use is defined through zoning;and iv) transitory categories: reserved areas of forest that may or may not be converted into protectedareas or concessions, in accordance with the result of research.Watersheds within the Amazon BasinThe watersheds utilized in the analyses were obtained through relief data from the Shuttle RadarTopography Mission (SRTM), available with a resolution of 15 arc-seconds (approximately 450 meters)and originally processed by the HydroSHEDS Project.This data was then used to generate the flow direction and accumulation models semiautomatically,along with the 2,862 hierarchized and structured river drainage systems, corresponding to1,453 basins covering more than 150,000 hectares and their 1,409 intermediary areas, affluents of theOrinoco and Amazon rivers, as well as the Guianas, the areas surrounding the Tocantins river and thewestern part of the Brazilian ‘NE Atlantic.’Using a specially developed algorithm, a unique system was established and applied to codifythe segments hierarchically in accordance with the six generated Strahler levels, common to the hydrographicnetwork and their respective basins.Based on the names contained in the digital cartography of rivers, compiled by the institutionsbelonging to <strong>RAISG</strong> in the different countries, and the consultation of different maps, the drainage sectionswere assigned with the name of the respective river in complete form up to Strahler level 3 and inpartial form to levels 2 and 1 (TIN7).TIN5. Extension of Indigenous Territories in Amazonia (km 2 )Indigenous Territories officially recognized 1,641.117Indigenous Territories not officially recognized (or without information) 435,406Territorial Reservation 28,127Proposed Territorial Reservation 39,762Total 2,144.412TIN6. Extension of Protected Natural Areas in Amazonia (km 2 )Type of useNationalAdministrative levelDepartmentalIndirect use 768,261 132,078 900,338Direct use 403,016 354,942 757,958Transitory use (Perú) 34,079 0 34,079Direct/Indirect use 4,154 0 4,154Total 1,209.509 487,020 1,696.529TotalAfter generating the drainage sections as described above, all the respective basins or relatedareas were generated, structured, codified and named: nine level 6 basins, 29 level 5 basins, 63 level 4basins and 192 level 3 basins. Levels 1 and 2 are still awaiting codification and toponyms. Level 3 wasestablished as the basis for presenting results on deforestation and other pressures, recognizing thatin many cases this level approximates the scale of municipalities and other correlated administrativeunits, which may be of interest to local governments.In this Atlas, macro-basins are those described here as level 5, and sub-basins as those at level3 (MIN2).General MethodologyThe information providing the foundation for this atlas Amazonia Under Pressure was assembledin June 2009 and updated in May 2011. This information was compiled in each country based onofficial sources, which show differences in time, scale, projection, availability and update period. Thecartographic sources used are cited where appropriate in the thematic chapters.The methodology is grounded on six sequential stages:1) Identification and compilation of cartographic information, which was revised and standardized,selecting only the data located within the area of study and available for all countries.2) Compilation of secondary information on the themes.3) Systematization and organization of cartographic information, presented in a layered themeformat. In order to ensure that the representation was cartographically and numerically equivalentacross the different countries, the specifications of each were taken into account in order toobtain a common set of captions. For example, the international borders were adjusted accordingto a single baseline in order to avoid gaps and overlaps in information. For all the themes,information was classified on the basis of a shared attribute of a caption defined during the initialstage. Protected Natural Areas were classified by type of use, while Indigenous Territories wereclassified in relation to the degree of official recognition. The aim was to classify the pressurethemes by activity phase or their time scale.4) Processing and cross-checking of data by thematic subgroups. The themes were crosscheckedwith the borders of the countries, basins, PNAs and ITs previously grouped and systemizedinto a single layer of information;5) Analysis of results by theme with the elaboration of tables and analytic maps that, combinedwith the compiled secondary information, served as a basis for producing technical notes oneach theme.6) Elaboration of technical notes on each theme.For the development of these stages, work sessions and technical meetings were held at differentmoments, both face-to-face and virtual, with the exchange of experiences, knowledge and capacitybuilding between the teams.The ArcGis GIS tool was used, along with Access for the database resulting from the analyses.In all chapters the results of the cross-checks and analyses are presented in the following order:Amazonia as a whole, Amazonia within each country, macro-basins and sub-basins, Protected NaturalAreas and Indigenous Territories.It is important to stress that the thematic cartographic analyses took into account only the directoverlapping of the themes with the units of analysis: in other words, “areas of influence or impact” relatingto the themes were not considered.MIN2. Hydrographic basins in AmazoniaTIN7, Length and number of drainage segments per Strahler levelsStrahler Length (km) Number of segments1 107,410 1,4532 59,137 7263 27,666 3484 16,044 2255 5,456 896 1,330 21Total 217,044 2,862<strong>RAISG</strong> 12Amazonia under PressureAmazoniaunder Pressure 13 <strong>RAISG</strong>

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