广西茅尾海茳芏生物量研究

Study on Biomass of Cyperus malaccensis Lam.at Maoweihai in Guangxi

在2010年对广西茅尾海盐沼湿地典型植物茳芏(Cyperus malaccensis Lam.)的株高、密度、生物量进行了季节动态变化的测定,根据茳芏生物量随时间的变化计算其绝对增长速率、相对增长速率和根冠比。结果表明,茳芏地上生物量最大值、地下生物量最大值和生物总量最大值分别为(2 802.3±887.0)(、1 590.8±641.8)和(3 753.7±1 022.6)g/m2。绝对增长速率、相对增长速率变化趋势和根冠比计算结果表明,在进入冬季后,茳芏营养物质转移到地下储存,是其作为多年生湿地植物适应气候和环境规律的体现。

In 2010,the plant height,density and biomass of typical salt marsh plant Cyperus malaccensis Lam.in Maoweihai,Guangxi were investigated.The absolute growth rate,relative growth rate and root-shoot ratio were calculated based on biomass time history of C.malaccensis.The biggest aboveground biomass,underground biomass and total biomass were：（2 802.3±887.0）,（1 590.8±641.8） and（3 753.7±1 022.60）g/m2,results of absolute growth rate,relative growth rate and root-shoot ratio changed showed that when winter comes,C.malaccensis＇s nutrients will transfer to underground to adapt to climate and the environment as perennial wetland plant.