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应用生态学报 ›› 1995, Vol. 6 ›› Issue (3): 231-236.

• 研究论文 • 上一篇    下一篇

间伐强度对杉木-火力楠混交林生长影响的研究初报

邓仕坚1, 张家武1, 陈楚莹1, 李锦芳2, 罗桂标2   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳 110015;
    2. 广西壮族自治区国营六万林场, 玉林 537025
  • 收稿日期:1994-10-06 修回日期:1995-01-19 出版日期:1995-07-25 发布日期:1995-07-25
  • 基金资助:

    广西林业厅科研基金

Effect of thinning intensity on the growth or Cunninghumis lanceolata and Michelia maclurei mixed forests

Deng Shijian1, Zhang Jiawu1, Chen Chuying1   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1994-10-06 Revised:1995-01-19 Online:1995-07-25 Published:1995-07-25

摘要: 对杉木-火力楠混交林进行4种间伐强度试验表明,间伐6年后各林分的杉木、火力楠胸径净生长量比对照分别增加70-139、11-25%,树高增加46-90、7-10%,村积生长增加54-140、10-43%,林分蓄积量增加49-75m3·ha-1,平均冠高增加2-6、8-13%,第1活枝高下降0.5-3、35-48%.冠幅杉木下降1-2%、火力楠增加1-8%.可以认为,以间伐强度为30和40%2种方式较好,间伐后林分定型株数约保留在1600-2200株·ha-1之间为宜。

关键词: 混交林, 间伐强度, 生长量, 杉木, 火力楠, 生物有机肥, 酶活性, 微生物群落功能多样性

Abstract: 6 years experiment on four thinning intensities of Cunninghamia lanceolata and Micheliameclurri mixed forest shows that in comparing with control, net growth of DBH for C.lanceofata and M.maclurei is respectively by 70-139% and 11-25%,height by 46-90 and 710%, volume by 54-140 and 10-43%, mean crown height by 26 and 8-13%, growing stock of the stand by 49-75m3.ha-1.The height of first living branch isdecreased by 0.5-3 and 35-48%,but crown width by 1-2% for C.lanceofata,and by 1-8% for M.maclurri.Therefore,it is considered that the thinning intensities of 30% and 40% are better than others,and the remainning trees are 1600-2200plant·ha-1

Key words: Mixed stand, Thinning intensity, Increment, Cunninghamia lanceolata, Michelia maclurei, bio-organic fertilizer, microbial community functional diversity, enzyme activity