欢迎访问《植物研究》杂志官方网站,今天是 分享到:

植物研究 ›› 2018, Vol. 38 ›› Issue (4): 583-589.doi: 10.7525/j.issn.1673-5102.2018.04.013

• 研究报告 • 上一篇    下一篇

小兴安岭阔叶红松林不同演替系列森林细根生物量的研究

刘岩, 毛子军   

  1. 东北林业大学森林植物教育部重点实验室, 哈尔滨 150040
  • 收稿日期:2017-12-08 出版日期:2018-07-15 发布日期:2018-07-21
  • 通讯作者: 毛子军 E-mail:zijunm@nefu.edu.cn
  • 作者简介:刘岩(1992-),女,硕士研究生,主要从事森林生态根系生物学方面的研究。
  • 基金资助:
    国家自然科学基金资助项目(31270494);国家“973”重点基础研究项目发展计划项目(2010CB951301)

Root Biomass in Different Secondary Succession Forests inthe Broad-leaved Korean Pine Forest Areaof Xiaoxing'an Mountain

LIU Yan, MAO Zi-Jun   

  1. Key Laboratory ofForest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040
  • Received:2017-12-08 Online:2018-07-15 Published:2018-07-21
  • Supported by:
    Nature Science Foundation of China(31270494);National "973" key basic research project development project(2010CB951301)

摘要: 以小兴安岭地区阔叶红松林旱生演替系列的蒙古栎次生林和蒙古栎红松林、中生演替系列的枫桦次生林和枫桦红松林、湿生演替系列的白桦次生林和云冷杉红松林这6种林型为研究对象,采用土钻取样法对不同演替系列细根生物量的空间变化、垂直分布规律及其影响因子进行系统地研究。结果表明:(1)3种演替系列总细根生物量存在显著差异(P<0.05)。中生演替系列生物量最高,平均达8.56 t·hm-2,其次是旱生演替系列8.18 t·hm-2,湿生演替系列生物量最低,为5.79 t·hm-2;(2)对于不同演替系列细根生物量垂直变化,在阔叶红松林的正向演替过程中,森林细根生物量逐渐增加,且随着土层的增加而降低,拟合效果均达显著水平(P<0.05),中根和粗根的垂直分布差异较大;(3)在小兴安岭地区,6块林地不同径级细根生物量与土壤有机C和全N、土壤容重、土壤含水率呈显著负相关(P>0.05),而土壤pH值与细根生物量呈显著正相关性(P>0.05)。

关键词: 小兴安岭, 阔叶红松林, 不同演替系列, 森林细根生物量, 群落类型

Abstract: We employed the six forest types of broad-leaved Korean pine in Xiaoxing'an Mountain, inlcuding the Mongolian oak forest and Korean pine of xerophytic sere, the Mongolian oak maple birch forest and maple birch Korean pine of mesosere and the wetland succession series birch forest and spruce fir forest, to study different successional series space variations, vertical distribution of root biomass and its influence factors by using soil drilling and sampling method. There was the significant difference for total root biomass in the three series of succession(P<0.05). The biomass was the highest in the mesosere, with an average of 8.56 t·hm-2, followed by the xerophytes of 8.18 t·hm-2, and the lowest was 5.79 t·hm-2 in the wetland succession series. For the vertical changes in the forward succession process in the forest, the biomass of fine roots gradually was increased and decreased with the increase of soil layer, and the fitting effect reflected marked difference. Vertical distribution of root and middle root showed difference. In Xiaoxing'an mountain, the distribution of thin root biomass in six woodlands had a significantly negative correlation with soil organic C and total N, soil bulk density and soil moisture content, whereas, showed a notable positive correlation with pH value.

Key words: Xiaoxing'an Mountains, broad-leaved Korean pine, different successional series, forest root biomass, community types

中图分类号: