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A phytosociological classification of the Nylsvley Nature Reserve

机译:Nylsvley自然保护区的植物社会学分类

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The vegetation of the Nylsvley Nature Reserve in the Transvaal Mixed Bushveld is classified hierarchically by the Braun-Blanquet Method of vegetation survey. The vegetation is seasonal grassland and deciduous savanna with four floristically distinct major groups of plant communities: (I) grasslands and broad-leaved savannas on non calcareous sandy soils on elevated sandstone and felsite areas; (2) microphyllous thorn savannas on calcareous, clayey, bottomland alluvial soils and termitaria thickets; (3) grassland and thorn savanna on calcareous self-mulching vertic soils; and (4) secondary communities on long abandoned native settlements and recently ploughed land. Seven primary communities with 12 community variations and 4 subvariations, and three secondary communities are described on the basis of 216 releves. The survey was carried out at two levels of detail, an ecosystem study area in the broad-leaved savanna being surveyed in more detail, floristically and structurally, than the rest of the Reserve.
机译:通过布劳-布兰凯特植被调查法,对德瓦瓦勒混合丛林地区内尔斯维自然保护区的植被进行了分级。植被是季节性草原和落叶大草原,在植物上有四个不同的主要植物群落:(I)高砂岩和长铁石地区的非钙质砂土上的草原和阔叶稀树草原; (2)在钙质,粘土质,底质冲积土壤和白蚁灌丛上的微叶刺稀树草原; (3)钙质自覆盖垂直土壤上的草原和荆棘大草原; (4)在长期荒废的居民点和最近耕作的土地上的次要社区。根据216个版本,描述了七个具有12个社区变体和4个子变体的主要社区,以及三个次要社区。这项调查是在两个细节级别上进行的,在阔叶稀树草原的生态系统研究区域,在植物学和结构上比其他自然保护区更为详细。

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