Chin J Plant Ecol ›› 2013, Vol. 37 ›› Issue (3): 239-247.DOI: 10.3724/SP.J.1258.2013.00024
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ZHAO Xiao-Wei, ZHAO Ping*(), ZHU Li-Wei, NI Guang-Yan, ZENG Xiao-Ping, NIU Jun-Feng
Published:
2014-02-12
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ZHAO Ping
ZHAO Xiao-Wei, ZHAO Ping, ZHU Li-Wei, NI Guang-Yan, ZENG Xiao-Ping, NIU Jun-Feng. Seasonal dynamics of night-time stem water recharge of Schima superba and its relation to tree architecture and leaf biomass[J]. Chin J Plant Ecol, 2013, 37(3): 239-247.
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URL: https://www.plant-ecology.com/EN/10.3724/SP.J.1258.2013.00024
Fig. 1 Variations of 24-h sap flow density of the sample tree of Schima superb with smallest and biggest diameter at breast height (DBH) in seasons. PAR, photosynthetically active radiation.
Zscore (胸径 D) | Zscore (边材面积 S) | Zscore (叶片生物量 B) | ||
---|---|---|---|---|
相关性 Correlation | Zscore (胸径 D) | 1.000 | 0.990 | 0.989 |
Zscore (边材面积 S) | 0.990 | 1.000 | 1.000 | |
Zscore (叶片生物量 B) | 0.989 | 1.000 | 1.000 |
Table 1 Correlation matrix
Zscore (胸径 D) | Zscore (边材面积 S) | Zscore (叶片生物量 B) | ||
---|---|---|---|---|
相关性 Correlation | Zscore (胸径 D) | 1.000 | 0.990 | 0.989 |
Zscore (边材面积 S) | 0.990 | 1.000 | 1.000 | |
Zscore (叶片生物量 B) | 0.989 | 1.000 | 1.000 |
主成分 Component | 初始特征值 Initial eigenvalues | 提取后平方载荷 Extraction sums of squared loadings | |||||
---|---|---|---|---|---|---|---|
总数 Total | 方差百分率 % of variance | 累计方差百分率 Cumulative variance % | 总数 Total | 方差百分率 % of variance | 累计方差百分率 Cumulative variance % | ||
D | 2.986 | 99.526 | 99.526 | 2.986 | 99.526 | 99.526 | |
S | 0.014 | 0.468 | 99.994 | ||||
B | 0.000 | 0.006 | 100.000 |
Table 2 Total variance explained
主成分 Component | 初始特征值 Initial eigenvalues | 提取后平方载荷 Extraction sums of squared loadings | |||||
---|---|---|---|---|---|---|---|
总数 Total | 方差百分率 % of variance | 累计方差百分率 Cumulative variance % | 总数 Total | 方差百分率 % of variance | 累计方差百分率 Cumulative variance % | ||
D | 2.986 | 99.526 | 99.526 | 2.986 | 99.526 | 99.526 | |
S | 0.014 | 0.468 | 99.994 | ||||
B | 0.000 | 0.006 | 100.000 |
夜间水分补充 Night-time water recharge | 考虑自变量 Assumption independent variable | 最优模型 Optimum model | R2 | p |
---|---|---|---|---|
4月 Apr. | 胸径 D | y = 0.912C-1.42E-016 | 0.832 | 0.000 |
7月 Jul. | 树高 H | y = 0.652C-1E-016 | 0.425 | 0.008 |
10月 Oct. | 冠幅 C | y = 496.765 + 366.488D | 0.645 | 0.000 |
1月 Jan. | - |
Table 3 Multiple linear regressions between night-time water recharge and tree architecture
夜间水分补充 Night-time water recharge | 考虑自变量 Assumption independent variable | 最优模型 Optimum model | R2 | p |
---|---|---|---|---|
4月 Apr. | 胸径 D | y = 0.912C-1.42E-016 | 0.832 | 0.000 |
7月 Jul. | 树高 H | y = 0.652C-1E-016 | 0.425 | 0.008 |
10月 Oct. | 冠幅 C | y = 496.765 + 366.488D | 0.645 | 0.000 |
1月 Jan. | - |
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