藤本植物适应生态学研究进展及存在问题

1　藤本植物的重要性　　藤本植物又称攀缘植物 ,是一类不能自由直立、通过主茎缠绕或攀缘器官攀缘它物升高的植物的总称 ,包括木质藤本和草质藤本两类。藤本植物是热带、亚热带森林重要的外貌和结构特征 ,常把森林冠层打结在一起形成特殊的层片结构1～4] 。在南美热带森林中 ,在胸径大于 1 5～2 0ｃｍ的树木中有近一半的树冠上攀有藤本5～ 7] ,森林下层植物中有 1 8%～ 2 2 %是藤本植物的幼藤6] 。泰国8] 和Ｇａｂｏｎ9] 的热带森林的凋落物中藤本植物的叶占 32 %～ 36%。藤本植物也是热带森林种类多样性的重要组成部分。Ｇｅｎｔｒｙ…

Progress and Problem of Vine Adaptive Ecology.

Vines-climbing plants- are plants that cannot remain free-standing to any appreciable height.With thery are specially adaptive capacity, they become prominent components in tropical and subtropical forests, but often neglected as a group of plants. At present, some knowledge of vine ecology mainly comes from stusies on tropical vines. Subtropical vines are abundant and diverse, but vine ecology is nearly blank in China. The progresses and problems of vine adaptive ecology on plasticity, heteroblastic development, selective to host, breeding strategy and so on about vines were discussed in this paper. More attention must be paid to the adaptive ecology of vine weeds.