摘要
为研究腊月中下旬撤除毛竹林地覆盖物对竹林产量和生长的影响,采用在不同地点多年试验的方法,选择大小年明显的毛竹林,实施隔年覆盖（春笋小年覆盖,大年不覆盖）,于覆盖45~60 d后将覆盖物撤除,并进行竹笋采挖与不覆盖之间的竹林产量和林分质量分析。6 a的试验表明：1覆盖竹林的春笋平均产量比不覆盖的减少了0.47%,冬笋平均产量增加320.16%,鞭笋平均产量增加141.00%;2覆盖竹林的林分平均胸径比6 a前增加了6.25%,全竹高增加了2.58%,立竹密度增加0.55%;竹林年龄结构比例中,Ⅰ度竹增加1.44%,Ⅱ度竹增加9.88%,Ⅲ度竹减少21.75%;3覆盖竹林的竹鞭总鞭长增加4.39%,平均鞭径粗度增加5.02%。可见腊月中下旬撤除覆盖能使毛竹林产量和生长均得到明显的提高。
In order to study the effect of removing the mulch in mid and late December on bamboo yield and growth,six-year test of mulching the On-and-Off Year bamboo forest every other year and removing the mulch after 45-60 d was conducted on Phyllostachys heterocycla cv. pubescens forest. Compared with the control（ without mulch）,the average output of bamboo shoots was decreased by 0.47% in Spring,but increased by 320. 16% in Winter,and increased by 141. 00% in Summer and Autumn. The average DBH of bamboo stands was increased by 6.25%,the whole height was increased by 2.58%,and the number was increased by 0.55% than that six years ago. In the age structure of bamboo forest,the Ⅰ degree was increased by 1.44%,the Ⅱ degree was increased by 9.88%,and the Ⅲ degree was reduced by 21.75%. Bamboo rhizome total lash length was increased by 4.39%,and the average diameter of bamboo rhizome was increased by 5.02%. The yield and growth of Phyllostachys heterocycla cv. pubescens forest can be improved obviously by removing the mulch in mid and late December.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2016年第6期7-10,共4页
Journal of Northeast Forestry University
基金
浙江省省院合作林业科技项目(2008SY05)
林业公益性行业科研专项(201004092)
关键词
腊月中下旬
撤除覆盖物
竹笋产量
竹林生长
Mid and Late December
Removing the mulch
Bamboo yield
Bamboo growth
