[Characteristics of soil seed banks in logging gaps of forests at different succession stages in Changbai Mountains].
Ying Yong Sheng Tai Xue Bao
; 20(6): 1293-8, 2009 Jun.
Article
em Zh
| MEDLINE
| ID: mdl-19795635
ABSTRACT
An investigation was made on the soil seed banks in the logging gaps of Populus davidiana--Betula platyphylla secondary forest, secondary broad-leaved forest, and broad-leaved Korean pine mixed forest at their different succession stages in Changbai Mountains. Among the test forests, secondary broad-leaved forest had the highest individual density (652 ind x m(-2)) in its soil seed bank. With the succession of forest community, the diversity and uniformity of soil seed bank increased, but the dominance decreased. The seed density of climax species such as Pinus koraiensis, Abies nephrolepis, and Acer mono increased, whereas that of Maackia amurensis and Fraxinus mandshurica decreased. Moreover, the similarity in species composition between soil seed bank and the seedlings within logging gaps became higher. The individual density and similarity between soil seed bank and the seedlings in non-logging gaps were similar to those in logging gaps. All of these indicated that soil seed bank provided rich seed resources for forest recovery and succession, and the influence of soil seed bank on seedlings regeneration increased with the succession.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sementes
/
Solo
/
Árvores
/
Ecossistema
/
Conservação dos Recursos Naturais
País/Região como assunto:
Asia
Idioma:
Zh
Ano de publicação:
2009
Tipo de documento:
Article