浙江天童森林公园藤本植物的基本特征

浙江天童森林公园计有藤本植物１３０种，隶属于３４科、７８属；具有如下特征：（１）藤本生活型为高位牙藤本（ＰＬ）（＆３．１％）、地下芽藤本ＧＶ）（１３．８％）、地面芽藤本（ＨＶ）（４．６％）、一年生藤本（ＴＶ）（４．６％）和地上芽藤本（ＣｈＶ）（３．８％）《在高位芽藤本中，落叶和常绿藤本分别占６０．０％和４０．０％。（２）藤本攀缘类型被人灵４大类９小类，依次为缠绕类（５１．６％）、卷曲类（包括卷须类

Fundamental Characteristics of Vines in Tiantong National Forest Park of Zhejiang Province, China

This paper deals with some fundamental characteristi cs of vines in Tiantong National Forest Park which is located in Yin county, northern Zhejiang province, China, at the intersection of 2948N and 1214E. The results are as follows. The floristic composition of vines consists of 130 specties, 78 genera and 34 families which respectively make up 13.7%, 15.7% and 27.4 % in total angiospermae. The vine life-form spectrum is that phanerophytes liana (PL) including the deciduous (60.0%) and the evergreen (40.0%) accounts for 73.1%, chamaphytes vines (ChV) (3.8%), hemicryptophytes vines (HV) (4.6%), geophytes vines (GV) (13.8%) and therophytes vines (TV) (4.6%). This spectrum is similar to the one of the evergreen broad-leaved forest in this park, indicating the warm and wet climate. Vine growth-forms are divided into 9 types: the stem twining accounting for 51.6%, the tendril (16.9%), the touch-sensitive leaf (5.4%), the branch curling (1.5%), the thorn (11.5%), the branch hooking (1.5%), the hook (0.8%), the adventitious root (8.5%) and the adhensive apparatus ( 2.3% ). The distribution of a vine in a co mmunity depends on its growth-form. There is a relatively high level of dioecy among vines. 61.5% vines are hermaphrodtis, 31.5% dioecious and 7.0% monoecious. Some characteristics and importance about heteroblastic development and three-dimentional structure of liana are also discussed in the paper.