Chin J Plant Ecol ›› 2007, Vol. 31 ›› Issue (5): 769-776.DOI: 10.17521/cjpe.2007.0098
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SHAN Li-Shan1,2, ZHANG Xi-Ming1,*(), HUA Yong-Hui3, WEI Jiang1,2, YAN Hai-Long1,2, XIE Ting-Ting1,2
Received:
2006-03-02
Accepted:
2006-11-15
Online:
2007-03-02
Published:
2007-09-30
Contact:
ZHANG Xi-Ming
SHAN Li-Shan, ZHANG Xi-Ming, HUA Yong-Hui, WEI Jiang, YAN Hai-Long, XIE Ting-Ting. RESPONSE OF ROOT DISTRIBUTION OF HALOXYLON AMMODENDRON SEEDLINGS TO IRRIGATION AMOUNTS IN THE TAKLIMAKAN DESERT, CHINA[J]. Chin J Plant Ecol, 2007, 31(5): 769-776.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2007.0098
处理 Treatment | 拟合方程 Fitting equation | 决定系数 Determination coefficient | ||
---|---|---|---|---|
No.1 | Y=-25.944ln(X)+122.86 | R2=0.911 2 | ||
No.2 | Y=-33.613ln(X)+156.12 | R2=0.928 0 | ||
No.3 | Y=-16.65ln(X)+93.632 | R2=0.711 6 |
Table 1 Vertical distribution curve equation of underground biomass under different irrigation amounts (the relationships between depth and biomass of sampling layer)
处理 Treatment | 拟合方程 Fitting equation | 决定系数 Determination coefficient | ||
---|---|---|---|---|
No.1 | Y=-25.944ln(X)+122.86 | R2=0.911 2 | ||
No.2 | Y=-33.613ln(X)+156.12 | R2=0.928 0 | ||
No.3 | Y=-16.65ln(X)+93.632 | R2=0.711 6 |
处理 Treatment | 根冠比 Root-shoot ratio | 根深/株高 Root depth /individual plant height | 根幅/冠幅 Root spread range/crown diameter |
---|---|---|---|
No.1 | 0.88±0.11 | 0.95±0.16 | 12.70±1.54 |
No.2 | 0.90±0.12 | 1.06±0.15 | 17.16±3.41 |
No.3 | 0.92±0.20 | 1.37±0.12 | 14.85±3.61 |
Table 2 Proportion between under- and aboveground growth indexes under different irrigation amounts (Mean±SE)
处理 Treatment | 根冠比 Root-shoot ratio | 根深/株高 Root depth /individual plant height | 根幅/冠幅 Root spread range/crown diameter |
---|---|---|---|
No.1 | 0.88±0.11 | 0.95±0.16 | 12.70±1.54 |
No.2 | 0.90±0.12 | 1.06±0.15 | 17.16±3.41 |
No.3 | 0.92±0.20 | 1.37±0.12 | 14.85±3.61 |
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