Abstract: A comparative study about the survival rate, multiplication coefficients(MCF) and weight coefficient(WCF) of Dendrobium officinale under three-dimensional forest cultivations with planting pattern, the tree body and its parts as research object was carried out. The results showed that the survival rate of D. officinale under different planting patterns as follows: suspended tree segment (STE)(98.55%)> tree body(95.86%)> rock(92.67%)> seedbed (72.97%), and there was a significant difference between STE and other planting patterns. The survival rate of D. officinale in different trees was Artocarpus heterophyllus(96.43%)> Dimocarpus longan (96.22%)> Mangifera indica(95.37%) > Litchi chinensis(93.54%)> Pinus massoniana(32.93%), and there was a significant difference between previous three trees and others. The survival rate of the fork was the highest(86.89%) in different tree parts. The comparison of MCF and WCF under different planting modes found that the two coefficients of the epiphytic types were higher than seedbed, and significant difference existed between them. The coefficients of STE were the highest in all epiphytic types(MCF=3.50 and WCF=4.55 after three years), and there was significant difference from other epiphytic types. Therefore, the cultivation of D. officinale should mainly use STE pattern, and make the most of evergreen broad-leaved arbor and rock as the carrier to cultivate in stereo planting pattern.

Key words: Dendrobium officinale, planting mode, tree body, survival rate, weight coefficient, multiplication coefficient

摘要： 选取种植方式、树体及其部位作为研究对象，对不同林下栽培模式下铁皮石斛Dendrobium officinale存活率、增殖系数及增重系数进行比较研究。结果表明，不同种植方式的铁皮石斛存活率大小依次为：悬挂式树段(98.55%)＞树体(95.86%)＞砖石(92.67%)＞苗床(72.97%)，悬挂式树段种植方式与其他三种方式均存在显著差异；而不同树的铁皮石斛存活率大小依次为：树菠萝(96.43%)＞龙眼(96.22%)＞杧果(95.37%)＞荔枝(93.54%)＞马尾松(32.93%)，前三种树与其他树存在显著差异；不同部位则以树杈部存活率(86.89%)最高。比较不同种植方式的铁皮石斛增殖与增重系数，附生种植方式两指标均显著高于林下苗床种植方式，附生种植方式中又以悬挂式树段种植方式的系数值最高，其三年后增殖系数与增重系数分别为3.50和4.55，并与其他附生方式均存在显著差异。因此，在亚热带林下立体栽培模式下，铁皮石斛的种植应以悬挂式树段种植方式为主，并充分利用常绿阔叶类乔木树种及砖石类等载体进行附生种植。

关键词: 铁皮石斛, 种植方式, 树体, 存活率, 增重系数, 增殖系数