了哥王(Wikstroemia indica)的生态生物学特征

应用生态学报 ›› 2002, Vol. ›› Issue (12): 1529-1532.

了哥王(Wikstroemia indica)的生态生物学特征

任海, 彭少麟, 戴志明, 梁晓东, 蔡锡安, 林永标

中国科学院华南植物研究所, 广州, 510650

收稿日期:2000-08-22 修回日期:2001-01-05
通讯作者: 任海,男,1970年生,博士,研究员,主要从事生态系统生态学和恢复生态学研究,发表论著60余篇(部).Tel:020-85231555,E-mail:renhai@scib.ac.cn.
基金资助:
国家自然科学基金重大项目(39899370);中国科学院生物技术特别支持项目(STZ-01-36);广东省自然科学基金项目(980489;980952);三峡药厂资助项目

Ecological and biological characteristics of Wikstroemia indica

REN Hai, PENG Shaolin, DAI Zhiming, LIANG Xiaodong, CAI Xi'an, LIN Rongbiao

South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650

Received:2000-08-22 Revised:2001-01-05

摘要/Abstract

摘要： 对了哥王的生态生物学特征研究表明,了哥王分布区气候条件温暖湿润,生境主要为草坡和开旷林地.了哥王耐贫瘠,是一种阳生性灌木,其光合速率平均为7.33μmolCO₂·m^-2·s_-1.其竞争力明显弱于同在灌草丛中分布的桃金娘.因而在灌草丛阶段的演替过程中,其种群减少,桃金娘种群增长.了哥王体内加权平均养分含量为N0.667%,P0.081%,K0.540%,Ca0.776%,Mg0.259%.种群生物量分析表明,荒坡上野生了哥王生物量较低,仅0.0273t·hm².若要大量开发了哥王资源,需要人工种植以提高生产量.

关键词: 了哥王, 生物量, 光合速率, 形态特征, 营养成分, 华西雨屏区, 硫沉降, 凋落叶分解, 氮沉降, 常绿阔叶林

Abstract: Wikstroemia indica was the common shrub with medicine use in subtropical and tropical zones. The studies on the biological and physiological characteristics, population dynamics,biomass,nutrient composition of Wikstroemia indica showed that Wikstroemia indica was widely dispersed over hilly lands and opened forests. It was heliophytes and grew well on impoverished soil. Its average photosynthetic rate and conductance were 7.33 μmol CO₂·m^-2 ·s^-1 and 0.042 molH₂O·m^-2 ·s^-1,respectively. The weighted nutrient concentration of Wikstroemia indica were N 0.667%,P0.081%,K0.540%,Ca 0.776%,and Mg0.259%,respectively,and the medicine ingredient was Wikstroemine C₁₆H₁₂O₅. Due to morphological difference,the competitive power on energy and nutrient of Wikstroemia indica was less than that of Rhodomyrtus tomentosa . Wikstroemia indica population decreased,while Rhodomyrtus tomentosa increased on shrubby grass land during early successional stage. Wikstroemia indica could be planted to increase its biomass to exploit medicine use.

Key words: Wikstroemia indica, Biomass, Photosynthetic rate, Morphological characteristics, Nutrient composition, litter decomposition, sulfur deposition, nitrogen deposition, Rainy Area of Western China, evergreen broad-leaved forest

中图分类号:

Q948.15

任海, 彭少麟, 戴志明, 梁晓东, 蔡锡安, 林永标. 了哥王(Wikstroemia indica)的生态生物学特征[J]. 应用生态学报, 2002, (12): 1529-1532.

REN Hai, PENG Shaolin, DAI Zhiming, LIANG Xiaodong, CAI Xi'an, LIN Rongbiao . Ecological and biological characteristics of Wikstroemia indica[J]. Chinese Journal of Applied Ecology, 2002, (12): 1529-1532.

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