广东省常见红树植物生长因子之间的关系及生物量研究

Study on the relationship among growth factors and biomass of common mangroves in Guangdong province

采用实地调查法,在广东省8个典型红树林区域内选取有代表性的林段设置样地,每木检尺,测定间距、树高、胸径、地径等生长指标,利用SPSS19.0软件研究了树高与胸径(或地径)之间的相关关系,并选取标准木取样,经冷冻保存-清洗-烘干等处理来研究生物量。结果表明:选取适于不同地区不同树种的线性和非线性回归方程,且决定系数(R2)较大,回归方程达极显著水平。说明红树树高与胸径(或地径)之间存在着密切的相关关系,各方程适于利用各树木胸径(或地径)估测其树高,可为红树林的保护和恢复发展提供科学依据。另外,无瓣海桑的平均单株生物量最大。红树植物个体的生物量不仅在数量上存在差异,而且在不同器官的分配上也存在明显差异。

Using field survey method, selected representative forest to set sample area in eight typical mangrove forests in Guangdong province. Gauging each wood to measure several growth indicators including the interval, tree height,diameter at breast height and ground diameter. SPSS19.0 software was used to study the relationship between tree height and diameter at breast height（or diameter）. And choose standard wood, sampling-cryopreservation-cleaning-drying to study the biomass. The results were as follows： selected the suitable linear and nonlinear regression equation according to different tree species in different areas, the determine coefficience（R2） was opposite large and the regression equation reached extremely significant level. We could know that there was close relationship between tree height and diameter at breast height（or diameter）. In conclusion, these regression equations were suitable for using the tree diameter at breast height（or diameter） to estimate the tree height and to provide a scientific basis for protection and restoration of mangrove forest. In addition, Sonneratia apetala＇s average individual biomass was the biggest of all. There were obvious differences not only in quantity, but also in the distributions of different organs about biomass of mangrove plants.