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首页> 外文期刊>Lesnicky casopis >Forest biodiversity and production potential of post-mining landscape: opting for afforestation or leaving it to spontaneous development?
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Forest biodiversity and production potential of post-mining landscape: opting for afforestation or leaving it to spontaneous development?

机译：森林生物多样性和开采后景观的生产潜力：选择植树造林或将其留给自发性发展？

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Land reclamation of post-mining sites strongly influences not only diversity and biomass of frequently studied ground vegetation, but also diversity of forest ecosystem. In most cases, spoil heaps are afforested after coal mining, but some reclaimed sites are left to spontaneous development, such as our study locality a?? surroundings of the Sokolov town, Czech Republic. Structure, species diversity and production potential were studied on three heap sites, artificially afforested by pedunculate oak (Quercus robur L.), black alder (Alnus glutinosa [L.] Gaertn) and silver birch (Betula pendula Roth) stands, and compared with three permanent research plots (PRP) left to natural succession processes with prevailing European aspen (Populus tremula L.), goat willow (Salix caprea L.) and also with silver birch. The timber production increased from the willow stand (28 m3 haa??1) to birch ones (97 m3 haa??1, all 45 years old). The mean stand volumes were significantly higher on afforested PRPs (74 m3 haa??1) than on succession PRPs (51 m3 haa??1), just as tree diameters. However, in terms of production quality, occurrence of breaks was significantly higher on afforested PRPs (15%) compared to succession PRPs (7%), while the opposite situation was observed in the stem quality. Horizontal structure of trees was regular on afforested PRPs, while spatial pattern on succession PRPs was aggregated. The highest differences in favor of succession PRPs was found in species richness and total stand diversity. These results imply a need for combined approaches in post-mining landscape management to support economic benefit and especially ecological value.
机译：矿岗后境地的土地填海遗址不仅影响了经常研究的地面植被的多样性和生物量，还影响了森林生态系统的多样性。在大多数情况下，煤炭开采后的破坏堆是造计的，但一些再生网站被留下自发开发，例如我们的研究当地？ Sokolov镇，捷克共和国的环境。在三个堆网站上研究了结构，物种多样性和生产潜力，由Pedunculate橡树（栎鞋L.），黑色桤木（Alnus glutinosa [L.] Gaertn）和银桦（Betula Pendula Roth）站立，并与之相比三个永久性研究情节（PRP）留给自然继承过程，具有欧洲白杨树（Populus Trusha L.），山羊柳（Salix Caprea L.）和银桦树。木材产量从柳树架（28m3 Haa-1）增加到桦树（97 M3 Haa ?? 1，全45岁）。植物架上的均值均显着高于造型PRPS（74m3哈，1），而不是连续的PRPS（51 M3 HAA ?? 1），就像树径一样。然而，在生产质量方面，与继承PRPS（7％）相比，受殖民PRPS（15％）的突破发生显着高，而在茎质量中观察到相反的情况。树的水平结构是常规的植树症，而继承PRPS的空间图案被聚集在一起。在物种丰富和总体多样性中发现了继承PRPS的最高差异。这些结果暗示了采矿后景观管理中的组合方法，以支持经济利益，特别是生态价值。

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