期刊
JOURNAL OF VEGETATION SCIENCE
卷 11, 期 1, 页码 93-100出版社
OPULUS PRESS UPPSALA AB
DOI: 10.2307/3236780
关键词
artificial gap; broadleaved forest; gap light index; seed weight; soil surface; species richness
The effects of soil surface disturbance and Light level on seedling emergence were examined by creating experimental conditions differing in soil surface treatment and light level in a temperate deciduous broadleaved secondary forest in central Japan. The results of MANOVA showed that soil surface disturbance exerted a favourable influence upon the seedling emergence of many species. Effect of soil disturbance on total density and number of emerged species was greater than that of a high light level. The interaction between soil surface disturbance and light level revealed significant positive effects for seedling emergence, especially for small-seeded species. The relationship between the percentage of emerged seedlings and seed weight was significantly negative in the soil-surface disturbed and high light level condition, suggesting that minute-seeded species largely depend on both factors for seedling emergence. Both soil surface disturbance and high light level had a positive effect on the number of emerged species, suggesting that these factors contributed to species richness at the stage of seedling emergence.
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