持久土壤种子库研究综述

摘要/Abstract

摘要： 土壤种子库是指存在于土壤上层凋落物和土壤中全部存活种子,简单地可分为短暂土壤种子库和持久土壤种子库。即使给予理想的萌发条件如季节、温度、湿度等,土壤种子库中也仍有部分种子保持休眠状态,休眠的种子组成了持久土壤种子库。持久土壤种子库具有在承受了空间或时间上不可预测的干扰的植被中发挥繁殖能力的潜势,因此,其在植被承受干扰后的恢复、管理和重建中常常起关键作用。研究持久土壤种子库能丰富生物多样性的内容,同时,可以为深入了解植被更新提供更多的信息。本文从持久土壤种子库的研究方法、分类方法、指示因子、生态意义,以及持久土壤种子库研究中存在的问题和今后的工作进行综述,试图为将来的工作奠定基础。

关键词: 风车草, 香根草, 人工湿地, 养分

Abstract: Soil seed bank includes all live seeds existed both in litter and in soil,which is simply classified into transient soil seed bank with seeds germinated within a year of initial dispersal,and persistent soil seed bank with seeds remained in soil more than one year.Even giving ideal germination conditions such as season,temperature and moisture,some seeds in soil,including persistent soil seed bank,still remain dormant.Investigation of soil seed bank has always been paid attention by plant ecology,and has been an active research area.Persistent soil seed bank confers the potential for regeneration in circumstances where unpredictable disturbance happened to the established vegetation temporally and/or spatially,and accordingly,plays a key role in vegetation restoration and management after disturbance.Researches on persistent soil seed bank can make the content of biodiversity abundant,and provide more ways to understand vegetation regeneration deeply.This paper reviewed the methodologies of persistent soil seed bank study,the classification and indication factors of persistent soil seed bank,and the significance of its study.The problems and further work of the study were pointed out.

Key words: Cyperus alternifolius, Vetiveria zizanioides, Constructed wetland, Nutrient

中图分类号:

S512

闫巧玲, 刘志民, 李荣平. 持久土壤种子库研究综述[J]. 生态学杂志, 2005, (8): 948-952.

YAN Qiaoling, LIU Zhimin, LI Rongping . A review on persistent soil seed bank study[J]. cje, 2005, (8): 948-952.

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