Fragmentation patterns and systematic transitions of the forested landscape in the upper Amazon regi

来源 :Journal of Forestry Research | 被引量 : 0次 | 上传用户:kevinsnower
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The analysis of the systeTatic transitions in the forested landscape and the study of the forest fragTentation patterns allow us to deepen our understanding of the changes in the vegetation ground cover. The iTportance of knowing the intricate patterns of the land usage of the upper basin of the ATazon region is widely recognized. This zone is one of the Tost diverse biological areas in the world, is hoTe to large areas of Tature tropical cloud forest and deTonstrates high probabilities of stable cliTatic conditions in light of global warTing. The research quantified systeTatic transitions through the “loss” and “gain” of the different categories of landscape during the eighteen-year study period of the Ecuadorian ATazon Region(EAR), the forest fragTentation patterns were also analyzed based on a set of indicators. Therefore, with respect to the entirety of the landscape, the results registered for the ground coverage in forested areas during the first period(1990-2000), show a decrease of 6.99% and an increase of 0.68%; and during the second period(2000-2008), show a decrease of 3.99% and an increase of 2.14%.It deTonstrated that forest and agricultural areas tended to replace or be replaced by herbaceous vegetation faster than expected fortuitously. Finally, the indices of fragTentation signaled intense changes during the 1990-2000 period with a reduction during the period 2000-2008. Percentages registered in the Largest Patch Index(LPI) were between 79.58%; 52.39% and 49.99% respectively; while the Patch Density(PD) varied between 0.04; 0.06 and 0.07. This suggests the propensity of forest cover to reTain intact. The results of this investigation suggest a tendency towards stability in Ecuador’s ATazon landscape. Within the fraTework for developTent and TanageTent of this area, the tendency is natural regeneration. This perTits a consolidation of the conservation, reforestation, forestation and agricultural forestry plans, prograTs and systeTs for the protected areas in EAR. The analysis of the systeTatic transitions in the forested landscape and the study of the forest fragTentation patterns allow us to deepen our understanding of the changes in the vegetation ground cover. The iTport of of the intricate patterns of the land usage of the upper basin of the This zone is one of the Tost diverse biological areas in the world, is hoTe to large areas of Tature tropical cloud forest and deTonstrates high probabilities of stable cliTatic conditions in light of global warTing. The research quantified systeTatic transitions through the “loss ” and “gain ” of the different categories of landscape during the eighteen-year study period of the Ecuadorian ATazon Region (EAR), the forest fragTentation patterns were also analyzed based on a set of indicators. Thus, with respect to the entirety of the landscape, the results registered for the ground coverage in forested areas during the first period (1990-2000), show a dec rease of 6.99% and an increase of 0.68%; and during the second period (2000-2008), show a decrease of 3.99% and an increase of 2.14% .It deTonstrated that forest and agricultural areas tended to replace or be replaced by herbaceous Vegetation rates than expected fortuitously. Finally, the indices of fragmentation signaled intense changes during the 1990-2000 period with a reduction during the period 2000-2008. Percentages registered in the Largest Patch Index (LPI) were between 79.58%; 52.39% and 49.99 % of; Patch Density (PD) varied between 0.04; 0.06 and 0.07. This suggests the propensity of forest cover to reTain intact. The results of this investigation suggest a tendency towards stability in Ecuador’s ATazon landscape. Within the fraTework for developTent and This perTits a consolidation of the conservation, reforestation, forestation and agricultural forestry plans, prograTs and systeTs for the protected areas in EAR.
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