保山市隆阳区白花蛇舌草生境的群落学研究

Characteristics of Hedyotis diffusa Community in Long Yang,Bao Shan

通过保山市隆阳区白花蛇舌草植物群落的样地调查,发现调查区共记载维管植物28科53属59种(含亚种、变种)。植物属地理成分分析表明,白花蛇舌草生境的植物区系成分较为复杂,分布类型多样,其中泛热带分布、北温带分布、东亚分布、旧世界温带分布、热带亚洲至热带非洲分布、旧世界热带分布在群落中占有重要地位。群落成分分析表明,植物组成种类复杂,类型十分丰富。生活型谱和盖度系数分析显示,该群落以地面芽植物和高位芽植物为主,反映出其生境属于亚热带森林区域气候。白花蛇舌草适合酸性,有机质丰富,中等湿度的土壤,中、弱等的光照和亚热带温凉湿润的气候的生境条件。

According to the community characteristics, survey on Hedyotis diffusa in LongYang of BaoShan is conducted 59 species （incude subspecies and varictas）of vascular belonging to 28 families and 53 genera were collected from distribution area of Hedyotis diffusa. The floristics characteristics of its community were analyzed. The resulted that floristic components was relative complex, Areal-types was very richness, the flora of distribution area of Hedyotis diffusa has important relationship with Palaeotropis , North temperate, E.Asia, Old World Temp, Trop. Asia＆Trop.Mrica, and Old World Trop. The results of community composition analysis showed that the plant composition was complex, the plant type were very rich. The life-form spectrum and coverage coefficient analysis dominant plant,its habitat faeture species characterized by acid and implied that phaenerophyte and hemicryptophyte was the belong rich to subtropics wood land climate. The habitat of this organic material soil, middle soil humidity, middle or slight sunlight, subtropical climate of warm cool and moist, were suitable for exist of this species.