神农架常绿落叶阔叶混交林凋落物动态及影响因素
刘璐1,2,赵常明1,徐文婷1,申国珍1,谢宗强1,2,*(
)
)
Litter dynamics of evergreen deciduous broad-leaved mixed forests and its influential factors in Shennongjia, China
LIU Lu1,2,ZHAO Chang-Ming1,XU Wen-Ting1,SHEN Guo-Zhen1,XIE Zong-Qiang1,2,*()
)
图4. 2008-2015年8个气候变量月值的主成分分析结果。每个点的横纵坐标为该变量在主成分轴上的荷载值, 百分数表示方差被该主成分轴所解释的部分。“prep”表示月降水量, “temp” “max temp” “min temp”分别表示月平均气温、月最高气温及月最低气温。
Fig. 4. Principal component analysis of the monthly values for eight meteorological variables from January 2008 to December 2015. The factor loadings of variables for the first two components are shown (the percentages are the variance explained by each axis). “prep” stands for monthly precipitation and “temp”, “max temp”, “min temp” stands for monthly average air temperature, monthly maximum air temperature and monthly minimum air temperature respectively.
