苔藓植物的化学元素含量及其特点

摘要/Abstract

摘要： 苔藓植物是化学元素最有效的积累者,在指示环境质量变化方面有其独到之处。本文阐述了苔藓植物体内地球化学元素的组成、含量、来源及其特点,用以揭示影响苔藓植物地球化学元素的因素,从而为苔藓植物作为指示生物提供更可靠的理论依据。苔藓植物体内所含的元素种类很多,主要来自大气沉降(如降水、降尘、扬尘、树冠淋溶等)和生长基质(如土壤、岩石等),元素含量受到区域空间、生态系统、苔藓种类以及时间季节的影响。苔藓植物体内地球化学元素含量可以指示环境条件(如区域空间、生态系统和时间)的差异。

关键词: 短命植物, 分布, 土壤水分, 古尔班通古特沙

Abstract: Bryophytes are effective accumulators for chemical elements,which can indicate the quality and change of environment.This paper illustrated the composition,concentration,origin,and characteristics of chemical elements in bryophytes,described the influence factors,and provided theoretical foundation for taking bryophytes as indicators.There were abundant elements in bryophytes coming from atmospheric depositions,such as precipitation,dust,eluviations etc,and substrate,such as soil and rock.The element concentrations in bryophytes showed great differences among different areas,ecosystems,and seasons.Environmental conditions,such as area,ecosystems,and seasons,could be indicated by the different concentrations of elements in bryophytes.

Key words: Ephemeral plants, Distribution, Soil moisture, Gurbantonggut desert

中图分类号:

Q948

吴虹玥, 包维楷, 王安. 苔藓植物的化学元素含量及其特点[J]. 生态学杂志, 2005, (1): 58-64.

WU Hongyue, BAO Weikai, WANG An . Concentrations and characteristics of chemical elements in bryophytes[J]. cje, 2005, (1): 58-64.

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