节点文献
水竹人工林生长和竹秆产量表的编制
STUDY ON THE GROWTH OF PHYLLOSTACHYS HETEROCLADA OLIV. AND THE PREPARATION OF CULM YIELD TABLE
【摘要】 <正> 前言水竹(Phyllostachys heteroclada Oliv.)属禾本科、竹亚科、刚竹属。在我省广德、休宁、歙县、青阳、舒城、潜山、会寨、滁县、全椒等地都有自然分布。水竹秆形通直、节间长、竹节平,纤维细韧,水平抗拉性强,劈篾平滑,最适合编织凉篇,为驰名中外的“龙舒贡篇”的唯一原料。
【Abstract】 Based on the data collecteel from 39 sample plots, totaled 18808 water bamboo culms, there are positive correlations between stand density and culm height, clear height, lear nodes, length of the clearinter nodal, wall thickness, and leave area index respectively, and negative between stand density and culm B. H. B. According to the crown diameter and D. B. H. we may calculate the water bamboo culm numbers per mu the different crown diameter and the different diameter classes. The numbers of crown diameter is divided by the numbers of average diameter, which is called the correlation factor (K), K times the numbers by crown diameter, and may prepare the management density table of the different ages and different diameter classes in the artificial stand of Phyllostachys heteroclada. The determined optimal reserved ages and numbers propose the helpful data. In the course of studying the inter relationship between diameter and weight, among height, diameter and weight of the sample bamboo, we have set up mathematical models and worked out local diameter and weight table, local height, diameter and weight table of the artificial stand of Phyllostachys heteroclada for the estimation of yield by weights and the determination of cutting amount by weight in management unit.
- 【文献出处】 竹子研究汇刊 ,Journal of Bamboo Research , 编辑部邮箱 ,1986年01期
- 【被引频次】6
- 【下载频次】42