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林业资源管理 ›› 2014›› Issue (6): 128-134.doi: 10.13466/j.cnki.lyzygl.2014.06.027

• 科学研究 • 上一篇    下一篇

杉木人工林择伐5年后生态效果综合分析

巫志龙1,2, 周成军1,2, 周新年1,2, 郑丽凤1,2, 赖阿红1, 卢秀琳1, 刘富万1, 苏春敏1   

  1. 1.福建农林大学,福州 350002;
    2.国家林业局杉木工程技术研究中心,福州 350002
  • 收稿日期:2014-08-25 修回日期:2014-10-15 出版日期:2014-12-28 发布日期:2020-11-23
  • 通讯作者: 周新年(1951-),男,福建浦城人,教授,博导,主要从事生态采运、工程索道和森林经理等方面的研究工作。Email:zxn0818@sina.com
  • 作者简介:巫志龙(1982-),男,福建永定人,实验师,在读博士,主要从事森林生态采运工程研究工作。Email:wuzhilong25@163.com
  • 基金资助:
    国家自然科学基金资助项目(30972359,31070567);福建农林大学部级创新平台资助;福建省自然科学基金计划资助项目(2013J01072);福建省中青年教师教育科研A类科技项目资助(JA14124);福建省林业厅科学基金资助项目(闽林科[2012]2号,[2013]5号)

Comprehensive Analysis on the Ecological Effects of Chinese Fir Plantation in Five Years after Selective Cutting Operations in Mountainous Areas,South China

WU Zhilong1,2, ZHOU Chengjun1,2, ZHOU Xinnian1,2, ZHENG Lifeng1,2, LAI Ahong1, LU Xiulin1, LIU Fuwan1, SU Chunmin1   

  1. 1. Fujian Agriculture and Forestry University,Fuzhou 350002,China;
    2. State Forestry Administration Engineering Research Center of Chinese Fir,Fuzhou 350002,China
  • Received:2014-08-25 Revised:2014-10-15 Online:2014-12-28 Published:2020-11-23

摘要: 对杉木(Cunninghamia lanceotata(Lamb.)Hook.)人工林进行4种不同强度择伐作业,分别为弱度12.9%、中度23.5%、强度46.1%和极强度64.6%,分析不同强度择伐5 a后对植被、土壤和凋落物的影响。结果表明:与未采伐相比,林分平均树高、平均胸径、蓄积量和断面积均随择伐强度增大呈先增大后减小的趋势;林下灌木和草本的物种多样性指数均增大;0~20 cm土层土壤密度、水分、孔隙状况和养分状况,均得到一定程度的改善;强度择伐下林地凋落物现存量及其养分总量均最大。综合比较得出,强度择伐5 a后林地生态环境的综合改善效果较佳,更适宜南方山地杉木人工林的科学经营与管理。

关键词: 择伐强度, 物种多样性, 土壤理化特性

Abstract: This study focused on the ecological effects of different selective cutting intensities in Chinese fir plantation.Four kinds of treatments were set up with selective cutting intensities,including low selective cutting intensity of 12.9%,medium selective cutting intensity of 23.5%,high selective cutting intensity of 46.1%,over-high selective cutting intensity of 64.6% and control without selective cutting.Effects of different selective cutting intensities on the vegetation,soil,and litter were investigated and analyzed five years later.Compared with the control,the results indicated that the mean height,the mean DBH,volume and basal area increased and then decreased with increasing of selective cutting intensity.The species diversity of shrub and herb layers under forest communities increased.The soil density,soil water content,soil porosity condition and soil nutrient status from 0~20 cm soil layers were improved in some degree.Total nutrient content of litter in plantation land with high selective cutting intensity reached the maximum.According to comprehensive comparison,the improvement of comprehensive effect on forest ecological environment was preferable with high selective cutting intensity.So it was more appropriate to be used for the scientific operation and management of Chinese fir plantation in mountainous areas in South China.

Key words: selective cutting intensity, species diversity, physical and chemical character of soil

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