缺苞箭竹生物学物侯学特征的初步研究

本文通过对四川王朗自然保护区缺苞箭竹研究分析表明：１．缺苞箭竹生长受热量因素的制约，具有与温度变化同步趋势；２．缺苞箭竹地下茎为合轴型，其分蘖生长具有同期分蘖效应的特点及按序分蘖特征；３．缺苞箭竹物候期除自身生物特征（遗传特性）表现外，环境因素也直接或间接地起一定作用；４．缺苞箭竹物候期随海拔的变化，系统发育年龄的变化，其始日、终日、长短也有差异；５．按海拔梯度绘制的物候谱，在主食竹造林时间的选择、森林生态系统研究和森林经营等方面，具有重要的应用价值。

A Preliminary study of Biological and Phenological Features of Fargesia denudata

Researhes on Fargesis demudate in Wanslang Nature Reserve have shown the following features. 1. Restricted by the quantity of heat,the growth of Fargesia denudata has a synchronous tendency with the variation of temperature. 2. Rhizoma of Fargesia denudata is sympodial and its tillering growth has features of contemporary to tillering effect and to tillering according to sequence. 3. In addition to the biolosical (genetic) features,environmental factors have a certain influence on the phenological phase of Fargesia denudata. 4. The beginning day,end day and length of the phenologital phase of Fargesia denudata will change with the differences in the elevation and the historical development aga. 5. The phenological spectrum drawn in accordance with the elevation has a high practical value in the selection of planting time of food bamboos for giant pandas,researches on forest eec-system,and management of forestS.