地理研究 ›› 2002, Vol. 21 ›› Issue (6): 689-698.doi: 10.11821/yj2002060004

• 论文 • 上一篇    下一篇

小兴安岭森林落叶分解与土壤动物的作用

殷秀琴, 仲伟彦, 王海霞, 陈鹏   

  1. 东北师范大学城市与环境科学学院长春,130024
  • 收稿日期:2002-04-08 修回日期:2002-07-24 出版日期:2002-12-15 发布日期:2002-12-15
  • 作者简介:殷秀琴(1951-),女,吉林长春人,教授。主要从事生物地理学和土壤动物生态学研究,已在国内 外学术刊物发表论文60余篇(部)。E-mail:yinxiuqin@163.net
  • 基金资助:

    国家自然科学基金项目(49471045);林业部重点项目(森林生态系统定位研究)

Decomposition of forest defoliation and role of soil animals in Xiao Hinggan Mountains

YIN Xiu-qin, ZHONG Wei-yan, WANG Hai-xia, CHEN Peng   

  1. College of Urban and Environmental Science, Northeast Normal University, Changchun 130024, China
  • Received:2002-04-08 Revised:2002-07-24 Online:2002-12-15 Published:2002-12-15

摘要:

在小兴安岭地区对 12种落叶分解过程和土壤动物作用进行了研究。采用不同网孔分解样袋 ,排出不同类别土壤动物作用的方法。结果表明 ,落叶分解消耗率 :大孔 >小孔 >对照 ,即大型、中小型土壤动物和微生物的共同作用 >中小型土壤动物和微生物的共同作用 >只微生物的作用。三年平均分解消耗率分别是 2 8.9% (大孔 )、 2 8.2 % (小孔 )和 2 6.2 % (对照 ) ,到第三年末 ,三种样袋 12种落叶平均分解程度分别达到 86.7% (大孔 )、 84 .6% (小孔 )和 78.7% (对照 )。分解初期土壤动物的作用逐渐增大 ,到第二年 10月土壤动物的作用达到了最大值 ,随后土壤动物的作用逐渐降低 ,大型土壤动物的作用小于中小型土壤动物的作用。落叶种类不同 ,分解时间不同 ,土壤动物作用也不同。

关键词: 森林落叶, 分解消耗, 土壤动物, 小兴安岭

Abstract:

Study on the decomposition of 12 kinds of forest defoliation and the role of soil animals in Pinus koraiensisbroad-leaved mixed forest and spruce-fir of Xiao Hinggan Mountains.The method of eliminating the role of soil animals of different groups from different mesh decomposition bags was adopted.The results show that the decomposition efficiency of the defoliation is large mesh > small mesh >check, that is to say the role of large-type and middle-small-type soil animals and microorganism > the role of middle-small-type soil animals and microorganism > the role of microorganism only.The average decomposition efficiency of three years is 28.9%(large mesh), 28.2%(small mesh) and 26.2%(check mesh).By the end of the third year, the degree of decomposition of three kinds of mesh bags is 86.7%(large mesh), 84.6%(small mesh) and 78.7% (check mesh). The decomposition of latifoliate defoliation is entirely higher than conifer defoliation in three kinds of mesh bags.In latifoliate defoliation, the decomposition degree of Phellodondron amuriensis,Fraxinus mandshurica,Ulmus laciniata,Juglans mandshurica andAcer mono is the highest.But in conifer defoliation, the decomposition degree of Pinus koraiensis is the highest.From the decomposition of 12 kinds of defoliations in 3 years, the decomposition of defoliation is effected not only by large-size soil animals but also by middle-small-size soil animals, but the degree of function is different.In the prophase of decomposition, the role of soil animals was gradually increasing and the biggest value appeared in October of the second year.Subsequently, the sole of soil animals was decreasing, and the role of large-type soil animals > the role of middle-small-type soil animals.The role of soil animals is different when the kind of defoliation and the time of decomposition are different.

Key words: forest defoliation, decomposition, soil Animals, XiaoHinggan Mountains