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地理研究 >

2008 , Vol. 27 >Issue 6: 1331 - 1339

DOI: https://doi.org/10.11821/yj2008060012

环境与生态

针阔混交林次生演替过程中的群落组成及元素迁移特征

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  • 东北师范大学城市与环境科学学院,长春 130024
刘惠清(1949-),女,吉林长春人,博士,教授。主要从事综合自然地理、景观生态学研究。E-mail:liuhq595@nene.edu.cn

收稿日期: 2008-04-27

  修回日期: 2008-08-25

  网络出版日期: 2008-11-25

基金资助

国家自然科学基金资助项目(40771014)

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Characteristics of elemental migration and community composition in the process of secondary succession in conifer and broad-leaved mixed forest

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  • Institute of Urban and Environment Science, Northeast Normal University, Changchun 130024, China

Received date: 2008-04-27

  Revised date: 2008-08-25

  Online published: 2008-11-25

Supported by

国家自然科学基金资助项目(40771014)

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摘要

针阔混交林次生演替过程中的群落组成及元素迁移特征具有重要的生态学意义。本文以吉林省左家自然保护区处不同演替阶段的红松针阔混交林群落为研究对象,采用野外定点调查和室内分析方法,对杂类草、榛子灌丛、蒙古栎林、蒙古栎－黑桦林、杂木林的群落组成、凋落物和土壤A、B层营养元素迁移特征进行对比分析。结果表明:群落由杂类草演替为杂木林群落,生境发生了由干热向温湿方向的变化;元素迁移由有机质的表聚为主过渡为有机质、粘粒和营养元素明显下移,pH值由偏中性转为弱酸性。

关键词： 红松针阔混交林; 演替过程; 元素迁移

本文引用格式

刘惠清, 许嘉巍, 刘佳雪 . 针阔混交林次生演替过程中的群落组成及元素迁移特征[J]. 地理研究, 2008 , 27(6) : 1331 -1339 . DOI: 10.11821/yj2008060012

Abstract

It is of great ecological significance to the characteristics of elemental migration and community composition in the process of secondary succession of the conifer and broad-leaved mixed forest.Taking the sample of Korean pine-deciduous mixed forest communities at various succession stages in Zuojia Nature Reserve, Jilin Province, this paper studied the characteristics of nutrient elemental migration through the litter and soil layer A and B and community composition of herbs, scrub of Corylus spp, Quercus mongolica forest, Quercus mongolica-Betula davurica forest and mixed forest communities, by means of field investigation and comparative analysis.The results showed that the habitat was altered from dry-hot to warm-humid, along with the succession from herb community to mixed forest community. Element migration also transited from organic matter aggregation in surface to a distinct down-movement of clays and nutrient elements. Environment changed from neutral to sub-acid.

Key words： Korean pine-deciduous mixed forest; succession process; elemental migration

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