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首页> 外文期刊>Revista rvore >FLORISTIC COMPOSITION AND PHYTOGEOGRAPHY CONTEXTUALIZATION OF THE NATURAL REGENERATION OF AN ALLUVIAL FOREST LOCATED IN THE 'PLANALTO SUL CATARINENSE' REGION, SC, BRAZIL
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FLORISTIC COMPOSITION AND PHYTOGEOGRAPHY CONTEXTUALIZATION OF THE NATURAL REGENERATION OF AN ALLUVIAL FOREST LOCATED IN THE 'PLANALTO SUL CATARINENSE' REGION, SC, BRAZIL

机译：植物组成和植物地理上的冲积森林自然再生，位于“Planalto sul Catarinense”地区，巴西

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This study aimed at inventorying the natural regeneration of tree species in an Alluvial Araucaria Forest in the "Planalto Sul Catarinense" region, SC, Brazil; evaluating the dissimilarity between its adult and regenerative components; and verifying the natural regeneration floristic sharing among its different fragments. The regenerative component has been sampled and identified within 48 plots and classified according to the following height classes: Class 1, plants with height varying from 15 cm up to 1 m; Class 2, plants with height varying from 1 and 3 m; and Class 3, plants with height higher than 3 m and DBH (diameter at breast height) smaller than 5 cm. The floristic composition of adult individuals in the area and of regenerative individuals from other fragments has been obtained from the database of the Laboratory of Dendrology of CAV/UDESC. The structure of the regeneration was evaluated by phytosociological descriptors. Dissimilarity between the adult and the regenerative components has been determined by Jaccard, Sorensen and Bray-Curtis distances. The regeneration floristic sharing analysis of different areas was conducted by a dendrogram. A total of 818 individuals belonging to 59 species have been sampled, being Allophylus edulis (A.St.-Hil. et al.) Hieron. ex Niederl. the species with the greatest relative importance. Elevated similarity between the regenerative and adult components have been observed (from 0.24 to 0.43), suggesting a low floristic-structural turnover between components. The area under study have shown a greater floristic connection (<40% of dissimilarity) with other spatially close fragments, indicating that altitude and temperature are important ecological factors for its phyto-geographic compartmentalization.
机译：本研究旨在在“Planalto Sul Catarinense”地区，巴西的“Planalto Sul Catarinense”地区的血液中的树种自然再生旨在吸收树种的自然再生;评估成人和再生组分之间的异化;并验证其不同碎片之间的自然再生植物分享。再生组分已经在48个地块内取样和鉴定，并根据以下高度等级进行分类：1级，高度从15厘米到1米的高度变化的植物; 2级，高度从1和3米变化的植物;和3级，高度高于3米和DBH的植物（乳房高度直径）小于5厘米。从Cav / Udesc树芽学实验室的数据库获得了该地区和其他片段再生个体的成人个体的植物组成。通过植物病毒描述符评估再生的结构。成人和再生组分之间的异化已经通过Jaccard，Sorensen和Bray-Curtis距离确定。通过树木图进行不同区域的再生植物分享分析。共有818个属于59种物种的个体，是Allophylus Edulis（A.ST.-HIL.等）的彼得。 ex niederl。具有最重要的物种相对重要性。已经观察到再生和成人组分之间的相似性（从0.24至0.43），表明组分之间的低植物结构周转。在研究中，该地区具有更大的植物联系（<40％的不相似性）与其他空间密闭的碎片，表明海拔高度和温度是其植物地理分区化的重要生态因素。

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