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首页> 外文期刊>Revista de Biología Tropical >Efecto de la explotación forestal sobre la estructura, diversidad y composición florística de los palmitales de la Selva Atlántica en Misiones, Argentina
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Efecto de la explotación forestal sobre la estructura, diversidad y composición florística de los palmitales de la Selva Atlántica en Misiones, Argentina

机译：森林开发对阿根廷米西奥内斯大西洋森林棕榈树林的结构，多样性和植物组成的影响

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The effect of forest exploitation on structure, diversity, and floristic composition of palmitodominated Atlantic forests at Misiones, Argentina. The effect of forest exploitation - timber and palmito (Euterpe edulis, Palmae) extraction -on structure, diversity, and floristic composition of forests known as palmitals of the Atlantic Forest of Argentina was analyzed. These palmitals are located in Misiones (54 °13? W and 25°41′ S). Three 1 ha permanent plots were established: two in the "intangible" zone of the Iguazu National Park (PNI), and another in an exploited forest site bordering the PNI. Three 0.2 ha non-permanent plots were also measured. One was located in the PNI reserve zone where illegal palmito extraction occurs. The other two were in logged forest. All trees and palmitos with DBH> 10 cm were identified and DBH and height were measured. For each of the six sites, richness and diversity of tree species, floristic composition, number of endemic species, and density of harvestable tree species were estimated. The harvest of E. edulis increases density of other tree species, diminishing palmito density. Forest explotation (logging and palmito harvest) is accompanied by an increase in diversity and density of heliophilic species, which have greater timber value in the region. However, this explotation also diminishes the density of palmito, of endemic species which normally grow in low densities, and of species found on the IUCN Red List. Results suggest that forest structure may be managed for timber and palmito production. The "intangible" zone of the PNI has the greatest conservation value in the Atlantic Forest, since a greater number of endemisms and endangered species are found here. Rev. Biol. Trop. 56 (2): 721-738. Epub 2008 June 30.
机译：森林开发对阿根廷米西奥内斯棕榈棕榈化大西洋森林的结构，多样性和植物组成的影响。分析了森林开发-木材和棕榈提取物（Euterpe edulis，Palmae）对阿根廷大西洋森林称为棕榈果的森林的结构，多样性和植物组成的影响。这些手掌位于Misiones（54°13？W和25°41'S）。建立了三个1公顷的永久性土地：两个在伊瓜苏国家公园（PNI）的“无形”地带，另一个在与PNI接壤的被开发森林中。还测量了三个0.2公顷的非永久土地。一个位于PNI保护区，那里发生非法棕榈提取物。另外两个在伐木森林中。识别出所有DBH> 10 cm的树木和棕榈树，并测量DBH和高度。对于六个地点中的每个地点，都估计了树木种类的丰富性和多样性，植物组成，特有种类的数量和可采伐树木种类的密度。食用大肠埃希氏菌增加了其他树种的密度，从而降低了棕榈密度。森林探险（伐木和棕榈采伐）伴随着嗜血物种多样性和密度的增加，这些嗜血物种在该地区的木材价值更高。然而，这种探索也降低了棕榈的密度，通常以低密度生长的地方物种以及在IUCN红色名录中发现的物种的密度。结果表明，森林结构可以用于木材和棕榈的生产。 PNI的“无形”地带在大西洋森林中具有最大的保护价值，因为在这里发现了大量的地方特有物种和濒危物种。 Rev.Biol。放下56（2）：721-738。 Epub 2008年6月30日。

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