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首页> 外文期刊>Revista Brasileira de Biociências = >Floristics and structur of the tree component in a Seasonal Forest remnant, Chiapetta, Rio Grande do Sul State, Brazil
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Floristics and structur of the tree component in a Seasonal Forest remnant, Chiapetta, Rio Grande do Sul State, Brazil

机译：巴西南里奥格兰德州基阿佩塔的季节性森林残留物中树木组成的植物区系和结构

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In a patchy landscap, the forest remnants are important to the conservation of wild species. A phytossociological study of tree component in a remnant of Seasonal Semideciduous Forest site namely Mato do Silva (27o55’26’’ S, 53o53’15’’ W, 290 ha) was accomplished aiming to obtain data of plant community structure and its conservation status, comparing with other Seasonal Forest sites. A sample of 508 trees (DBH ≥ 5.0 cm), belonging to 31 families and 63 species, was attained through the point-quarter procedure. The outstanding families in terms of richness were Fabaceae (eleven species), Myrtaceae, Rutaceae, Sapindaceae, Lauraceae and Euphorbiaceae (four species each one). The species with the highest importance value were Cordia americana (L.) Gottschling & J.E.Mill. (35.5) , Diatenopteryx sorbifolia Radlk. (32.3) and Prunus myrtifolia (L.) Urban (19.1) . The dead trees presented a relative density of 4.9% . The majority of the species (65%) and individuals (55%) were zoochoric. Otherwise, the anemochory presented higher relative coverage (55%). The species with the higher IV values were mainly early secondary and anemochoric. The Shannon index of diversity (H’) was 3.68 and the Pielou’s evenness index (J’) was 0.89. These values are among the highest values observed in Seasonal Forests of South Brazil. The floristic inventory counted 117 tree species .
机译：在一片斑驳的景观中，森林残留物对于野生物种的保护非常重要。为了获得植物群落结构及其保护状况的数据，完成了对季节性半落叶林遗迹即马托·多席尔瓦（Mato do Silva）（27o55'26''S，53o53'15''W，290公顷）残余物中树木成分的植物社会学研究。 ，与其他季节性森林站点相比。通过点四分之一程序获得了508棵树木（DBH≥5.0厘米），属于31科63种。就丰富度而言，杰出的科是豆科（十一种），桃金娘科，芸香科，Sa科，月桂科和大戟科（每科四个）。具有最高重要性值的物种是美洲Cordia americana（L.）Gottschling＆J.E. Mill。 （35.5），Diatenopteryx sorbifolia Radlk。 （32.3）和桃李（L.）Urban（19.1）。枯树的相对密度为4.9％。大多数物种（65％）和个体（55％）是人畜共患的。否则，风速疗法的相对覆盖率更高（55％）。 IV值较高的物种主要是初生和厌食的。香农多样性指数（H’）为3.68，而Pielou的均匀度指数（J’）为0.89。这些值是在巴西南部的季节性森林中观察到的最高值之​​一。植物区系统计了117种树木。

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