冯秋红,王勇,谢大军,李登峰,徐峥静茹,刘兴良,孙治宇
FENG Qiu-hong,WANG Yong,XIE Da-jun,LI Deng-feng,XU Zheng-jingru,LIU Xing-liang,SUN Zhi-yu

• 1:四川省林业科学研究院四川卧龙森林生态系统定位站
• 2:阿坝州林业局
• 3:四川农业大学
• 4:成都理工大学

摘要(Abstract)：

以不同修枝强度(自地面向上1 m修枝,2 m修枝和不修枝)对20 a、30 a和40 a林龄云杉人工林林下灌草为研究对象,通过典型抽样法和收获法获取和分析了不同修枝强度影响下各林龄云杉人工林林下灌草的生物量和生物多样性指标,分析了修枝对川西亚高山云杉人工林林下灌草生物量和生物多样性的影响。结果表明,修枝在短期(1 a)内对林下灌草会产生一定的影响,与生物量相比,林下灌草生物多样性的反应更为敏感,即修枝促进了20 a生、30 a生人工云杉林林下灌木的Shannon-Weiner指数,30 a生云杉人工林的Simpson指数也显著增加。相比之下,1 m修枝对林下灌木多样性的促进作用更强。
Studies were made of the total biomass,bio-diversity of shrub layer and grass layer from 20 years old,30 years old and 40 years old artificial forest of Picea asperata Mast. under different pruning intensity modes( X1,X2 and X3 respectively meaning cutting off 0 m branch,1 m branch and 2 m branch above the ground). And effects of pruning on biomass and biodiversity of shrub and grass under the artificial forest were analyzed through representative sampling and harvesting. The result showed that pruning had a kind of effect on shrubs and grasses under forest in short-term period. The bio-diversity of shrub layer and grass layer under forest were more sensitive than the biomass of them. Shannon-Weiner index of shrub layer of 20 years old and 30 years old artificial forest and Simpson index of 30 years old artificial forest increased significantly after pruning. X1 had a stronger effect on promoting bio-diversity of shrub layer than X2.

关键词(KeyWords)： 修枝;云杉人工林;林龄;生物多样性;川西亚高山
Pruning;Picea asperata Mast. artificial forest;Forest age;Biodiversity;Sub-alpine region of western Sichuan

Abstract:

Keywords:

基金项目(Foundation): 四川省省财政专项项目(ZL2017-04);; 四川省省级公益性科研院所基本科研业务费项目(JB2017-02);; 四川省科技计划项目(2016JY0148)资助

作者(Author): 冯秋红,王勇,谢大军,李登峰,徐峥静茹,刘兴良,孙治宇
FENG Qiu-hong,WANG Yong,XIE Da-jun,LI Deng-feng,XU Zheng-jingru,LIU Xing-liang,SUN Zhi-yu

DOI: 10.16779/j.cnki.1003-5508.2018.01.002

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