摘要
一、引言芒萁(Dicranopteris dichotoma)广泛分布于长江以南亚热带地区。常生长于疏林下或山坡,具有湿润亚热带、热带气候和强酸性土相结合的生态环境,是水热条件较好的酸性土指示植物之一。
Two sample plots (plot Ⅰ, pure Dicranopteris dichotoma community and plot Ⅱ, D,dichotoma community under Chinese fir forest) are comparatively investigated, Because of their environmental differences, the two communities have different dynamic patterns of growth and biomass: the maximum growth speed and aboveground-underground biomass in plot Ⅰ are at September, whereas those in plot Ⅱ are at October, As multiple regression anatysis indicates, the aboveground biomass of Dicranopteris dichotoma communities is correlated with the amount of pinnules, length of petioles and environmental illumination, while the underground biomass is correlated with the abovoground biomass, amount of pinnules, length of petioles, environmental illumination and soil moisture content.
出处
《生态学杂志》
CAS
CSCD
北大核心
1991年第4期18-22,共5页
Chinese Journal of Ecology
关键词
芒萁
群落
生物量
环境
Dicranopteris dichotoma, community, biomass, environment, Jinyun Mountain.
