VEGETATION DEVELOPMENT IN ABANDONED GRAVEL PITS - EFFECTS OF SURROUNDING VEGETATION, SUBSTRATE AND REGIONALITY

被引：52
作者：
BORGEGARD, SO
机构：
[1] Department of Ecological Botany, Uppsala University, Uppsala, S-751 22
来源：
JOURNAL OF VEGETATION SCIENCE | 1990年 / 1卷 / 05期
关键词：
Primary succession; Soil development;
D O I：
10.2307/3235575
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Abstract. Vegetation development in 68 abandoned gravel pits and their surroundings in five regions in Sweden is described by means of classification and ordination. Most pits were less than 10 yr old, but some pits in central Sweden were up to 100 yr old. For 26 pits in central Sweden the results of mechanical and chemical soil analyses are presented. Vegetation in young pits is more homogeneous than the vegetation in the surroundings. The surrounding vegetation type strongly affects pit vegetation. There are regional differences in pit vegetation between pits in coniferous forests in different parts of Sweden. Old gravel pits are clearly distinguished from young ones and show more resemblance to the surrounding vegetation. Tree layer cover and nitrogen content increase, whereas C/N ratio and pH decrease with age. Species richness of the gravel pits was not related to their size. 1990 IAVS ‐ the International Association of Vegetation Science
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收藏
页码：675 / 682
页数：8
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