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首页> 外文期刊>Revista rvore >Regenera??o natural como indicador de recupera??o de área degradada a jusante da usina hidrelétrica de Camargos, MG
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Regenera??o natural como indicador de recupera??o de área degradada a jusante da usina hidrelétrica de Camargos, MG

机译：自然再生作为镁摩尔科尔科水力发电厂下游的降解区域恢复指标

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摘要

The process of natural regeneration in an area degraded for the construction of the Camargos hydroelectric plant dam, MG, was analyzed 155 months after the planting for its reclamation. The analyses were done in function of the distance to the river, soil compaction and distance of the seed sources. The survey of the natural regeneration was done in plots of 2 x 15m allocated every 10m along three transects (15m width and variable length) parallel to the slope direction. All plants with DBH < 5cm and height > 10cm were identified and measured in height. Sixty four species of 27 families were found. The adjacent fragment provides a great amount of propagules for the natural regeneration, since many regenerative species in the recovering area were found only in the arboreal stratum of that fragment. A distance of up to 75m to the fragment did not affect the regeneration density, height and diversity, but in the plots taken by the grass Mellinis minutiflora, the density was smaller and the plants higher.
机译：在种植后155个月内分析了在植物填充后的155个月内降低了一个区域的天然再生的过程。分析是以河流，土壤压实和种子源距离的距离进行的。在平行于倾斜方向的三个横向（15m宽度和可变长度）的图中，在2×15m的图中进行自然再生的调查。所有具有DBH <5cm和高度> 10cm的植物都被识别并高度测量。发现了六十四种家庭。相邻的片段为自然再生提供了大量的繁殖，因为在该片段的树栖层中仅发现回收区域中的许多再生物种。距离片段高达75米的距离不影响再生密度，高度和多样性，但在草原梅林斯Minutiflora采取的地块中，密度较小，植物更高。

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