海南岛霸王岭热带云雾林雨季的环境特征

龙文兴, 丁易, 臧润国, 杨民, 陈少伟

Environmental characteristics of tropical cloud forests in the rainy season in Bawangling National Nature Reserve on Hainan Island, South China

LONG Wen-Xing, DING Yi, ZANG Run-Guo, YANG Min, CHEN Shao-Wei

图4 热带山地常绿林(TMEF)和热带山顶矮林(TMDF)环境因子间的相关性分析: 相关图解为环境因子间的相关系数及其显著性。该图是将热带山地常绿林和热带山顶矮林的环境因子数据合并后的相关性分析结果。AK, 有效钾(mg·kg-1); Alt, 海拔高度(m); AN, 速效氮(mg·kg-1); AP, 有效磷(mg·kg-1); CER, 岩石裸露比例(%); HT, 腐殖质厚度(cm); OM, 有机质(g·kg-1); PAR, 光合有效辐射(μmol?m-2?s-1); RH, 日平均空气相对湿度(%); Slo, 坡度(o); ST, 土壤厚度(cm); Tem, 日平均空气温度(℃); TK, 全钾(g·kg-1); TN, 全氮(g·kg-1); TP, 全磷(g·kg-1)。*, p < 0.05; **, p < 0.01; ***, p < 0.001; 无*的数字表示 p > 0.05。

Fig. 4 Correlation among environmental conditions in both tropical montane evergreen forest (TMEF) and tropical montane dwarf forest (TMDF), indicating correlation coefficients of environmental factors and their significance. The figure was obtained with correlation analysis after combining environmental data of TMEF and TMDF.AK, available potassium (mg·kg-1); Alt, altitude (m); AN, available nitrogen (mg·kg-1); AP, available phosphorous (mg·kg-1); CER, coverage of exposed rock (%); HT, humus thickness (cm); OM, organic matter (g·kg-1); PAR, photosynthetically active radiation (μmol ? m-2 ? s-1); RH, mean daily air relative humidity (%); Slo, slope gradient (o); ST, soil thickness (cm); Tem, mean daily air temperature (℃); TK, total potassium (g·kg-1); TN, total nitrogen (g·kg-1); TP, total phosphorus (g·kg-1). *, p < 0.05; **, p < 0.01; ***, p < 0.001; figures without * indicate p > 0.05.