作　　者： ; ; ;

机构地区： 华南师范大学生命科学学院生物科学系

出　　处： 《华南师范大学学报（自然科学版）》 2001年第4期50-54,共5页

摘　　要： 对黑石顶森林群落中黄果厚壳桂幼苗一年的生长与影响幼苗生长因子的相关性分析结果表明 ,土壤中氮、磷、钾含量与幼苗生长呈正相关 ,土壤有机质含量和pH值也间接影响幼苗生长 .在水分和光照强度变化较大的群落中 ,幼苗生长与土壤水分含量呈正相关 ,与林内光照强度呈负相关 .群落中幼苗密度较大将促进 1年生幼苗的生长 .各影响因子主要与 1- 3年生幼苗的生长具有显著的相关性 ,而 Studies of Cryptocarya concinna seedling growth were carried out in Heishiding subtropical forest, Guangdong Province. The impermanent transects of C. concinna seedlings were tagged and measured at bimonthly intervals in a year. The effecting factors of seedling growth, including edaphic factor, light intensity and seedling density in plots, were measured and the correlation between seedling height growth and effective factors were analyzed. The results showed that seedling growth is positively relate to content of nutrient elements N, P, K in soil. Litter decomposition ratio and pH value of the soil effect seedling growth indirectly. In the community that soil moisture and light intensity distribute unevenly, seedling growth is positively relate to soil moisture and negatively to light intensity. Higher seedling density is favorable to the growth of one-year-old seedling. The growth of one to three years old seedling is significantly relative to effective factors, but seedling growth above three years old is not significantly relate to effective factors.

关 键 词： 黄果厚壳桂 幼苗生长 影响因子 相关分析 森林群落 黑石顶自然保护区 光照强度 土壤水分

领　　域： [农业科学] [农业科学] [生物学]