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林业资源管理 ›› 2007, Vol. 0 ›› Issue (2): 52-56.

• 科学技术 • 上一篇    下一篇

宜昌市郊柏木人工林林下植被发育及生物量研究

朱元恩1, 姚冬梅2   

  1. 1.长江大学园艺园林学院,湖北 荆州434025;
    2.三峡职业技术学院,湖北 宜昌443003
  • 收稿日期:2006-09-15 修回日期:2007-01-19 发布日期:2020-12-01
  • 作者简介:朱元恩(1971-),男,湖南岳阳人,讲师,博士生,主要从事环境生态学研究。
  • 基金资助:
    湖北省教育厅自然科学基金重点项目“宜昌市城乡交错带森林生态恢复机理研究”(B200612009)

A Study on the Development and Biomass of Undergrowth Vegetations in Cupressus funebris Plantations in Yichang Suburbs

ZHU Yuanen1, YAO Dongmei2   

  1. 1. College of Horticalture and Gardening,Yangtze University,Jingzhou434025,Hubei,China;
    2. Yichang Vocational and Technical College,Yichang, 443003 Hubei,China
  • Received:2006-09-15 Revised:2007-01-19 Published:2020-12-01

摘要: 通过对宜昌市郊柏木人工林从幼龄林、中龄林至近熟林3个阶段林下植被发育及生物量的研究,结果表明:林下乔木、灌木和草本植物数量有不同程度增加,但常绿树种几乎没有增加;林下灌木层由强阳性种趋向中性种,林下草本层由栗褐苔草和地果占优势变为蕨类植物占优势;柏木更新不良显著影响林下灌木层和草本层平均高度和平均盖度的变化,但总体趋势是增加的,只是平均密度有所下降;林下草本层和死地被物层的生物量呈增加趋势,但受柏木更新不良影响,灌木层生物量呈现出先减少后增加的变化趋势。

关键词: 柏木, 人工林, 林下植被, 生物量, 宜昌

Abstract: This paper studies the development and biomass of undergrowth vegetations of young-age plantations, middle-age plantations and near-mature plantations of Cupressus funebris in Yichang suburb. The results show that,from young plantations and middle-aged plantations to near-mature plantations, number of arbor species,shrub species and herbaceous species increase to a different extent, but evergreen arbor nearly not increased. dominant species of shrub layer changed from strong-masculine to relatively neutral,dominant species of herb layer changed from carex brunnea and ficus tikoua to pteridophyte. Bad regeneration of Cupressus funebris had a distincteffect on the average height and cover of shrub layer and herb layer,which increasedon the whole,but average density descended a little. Biomass of herb layer and canopy floor increased,but as a result of bad regeneration of Cupressus funebris,biomass of shrub layer descended earlier,and increased afterward.

Key words: Cupressus funebris, plantations, undergrowth vegetations, biomass, Yichang

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