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首页> 外文期刊>Revista rvore >Riqueza e estrutura do componente arbóreo e características edáficas de um gradiente de floresta ciliar em Minas Gerais, Brasil
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Riqueza e estrutura do componente arbóreo e características edáficas de um gradiente de floresta ciliar em Minas Gerais, Brasil

机译：巴西Minas Gerais睫状森林梯度的树栖成分的财富与结构

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摘要

This study aimed to relate variations in richness and tree community structure to soil characteristics in a gradient of riparian forest, at Parque Estadual da Mata Seca, north of Minas Gerais. Studies of soil characteristics and the richness and structure of trees (DBH≥ 5 cm) were conducted in 39 plots of 400 m2, divided equally into three sections previously selected, these being: S?o Francisco (lower moisture), Meio (flooding during most of the year) and Lagoa da Prata (flooding during the rainy season). The analysis of topsoill (0-20 cm) showed significant differences between the different forest sections. In all three environments were sampled 2482 individuals belonging to 36 species, 31 genera and 16 plant families. There were significant differences for the different sections in the Shannon diversity index, number of individuals, basal area and absolute dominance. The diameter distribution of the community had a great number of individuals concentred in the smallest classes, decreasing gradually. It is noteworthy that the basal area and density of subjects had significant correlations with soil most variables analyzed. Thus, the structure of the three sections studied is correlated with the textural, chemical and soil moisture, causing variations in phytosociological communities studied.
机译：本研究旨在将丰富度和树群落结构的变化与山地森林梯度梯度的土壤特征相关，在Minas Gerais北部的Parque Estadual da Mata Seca。土壤特征和树木的丰富性和结构（DBH≥5厘米）的研究在400平方米的39个曲线下进行，分为三个先前选择的部分，这些存在：S？O Francisco（较低的水分），Meio（洪水一年中的大部分时间）和Lagoa da Prata（雨季洪水）。甲骨岩（0-20cm）的分析显示出不同森林部分之间的显着差异。在所有三种环境中，都有2482个属于36种，31种属和16家植物家庭的个人。 Shannon多样性指数，个人，基础区域和绝对优势的不同部分存在显着差异。社区的直径分布在最小的类别中具有大量的个体，逐渐减少。值得注意的是，受试者的基础区域和密度与分析的土壤大多数变量具有显着的相关性。因此，所研究的三个部分的结构与纹理，化学和土壤水分相关，导致研究的植物脑室社区的变化。

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