Chin J Plant Ecol ›› 2014, Vol. 38 ›› Issue (2): 125-133.DOI: 10.3724/SP.J.1258.2014.00011
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MAO Wei1,*(), LI Yu-Lin1, CUI Duo2, ZHAO Xue-Yong1, ZHANG Tong-Hui1, LI Yu-Qiang1
Received:
2013-01-15
Accepted:
2013-04-02
Online:
2014-01-15
Published:
2014-02-12
Contact:
MAO Wei
MAO Wei, LI Yu-Lin, CUI Duo, ZHAO Xue-Yong, ZHANG Tong-Hui, LI Yu-Qiang. Biomass allocation response of species with different life history strategies to nitrogen and water addition in sandy grassland in Inner Mongolia[J]. Chin J Plant Ecol, 2014, 38(2): 125-133.
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URL: https://www.plant-ecology.com/EN/10.3724/SP.J.1258.2014.00011
处理 Treatment | df | 繁殖生物量比重 Relatively reproduction biomass | 茎生物量比重 Relatively stem biomass | 叶生物量比重 Relatively leaf biomass | 茎叶比 Stem:leaf ratio | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F | p | F | p | F | p | F | p | |||||
氮素 Nitrogen (N) | 1 | 10.57 | 0.004 | 2.01 | 0.170 | 4.48 | 0.047 | 0.48 | 0.500 | |||
水分 Water (W) | 2 | 0.33 | 0.730 | 1.61 | 0.230 | 1.19 | 0.330 | 0.30 | 0.750 | |||
氮素×水分 N × W | 2 | 1.15 | 0.250 | 8.18 | 0.003 | 5.42 | 0.013 | 7.56 | 0.004 |
Table 1 ANOVA of the biomass allocation of annual plant species
处理 Treatment | df | 繁殖生物量比重 Relatively reproduction biomass | 茎生物量比重 Relatively stem biomass | 叶生物量比重 Relatively leaf biomass | 茎叶比 Stem:leaf ratio | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F | p | F | p | F | p | F | p | |||||
氮素 Nitrogen (N) | 1 | 10.57 | 0.004 | 2.01 | 0.170 | 4.48 | 0.047 | 0.48 | 0.500 | |||
水分 Water (W) | 2 | 0.33 | 0.730 | 1.61 | 0.230 | 1.19 | 0.330 | 0.30 | 0.750 | |||
氮素×水分 N × W | 2 | 1.15 | 0.250 | 8.18 | 0.003 | 5.42 | 0.013 | 7.56 | 0.004 |
Fig. 1 Biomass allocation between annual species and perennial species in different treatments (mean ± SE). N0W0, control; N0Ww+, snow addition in winter; N0Ws+, water addition in summer; N+W0, nitrogen addition; N+Ww+, nitrogen addition and snow addition in winter; N+Ws+, nitrogen addition and water addition in summer.
处理 Treatment | df | 繁殖生物量比重 Relatively reproduction biomass | 茎生物量比重 Relatively stem biomass | 叶生物量比重 Relatively leaf biomass | 茎叶比 Stem:leaf ratio | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F | p | F | p | F | p | F | p | |||||
氮素 Nitrogen (N) | 1 | 0.33 | 0.58 | 0.81 | 0.38 | 1.18 | 0.30 | 0.92 | 0.35 | |||
水分 Water (W) | 2 | 1.44 | 0.27 | 0.77 | 0.48 | 1.34 | 0.29 | 0.92 | 0.42 | |||
氮素×水分 N × W | 2 | 5.10 | 0.02 | 1.06 | 0.37 | 2.24 | 1.14 | 1.29 | 0.30 |
Table 2 ANOVA of the biomass allocation of perennial plant species
处理 Treatment | df | 繁殖生物量比重 Relatively reproduction biomass | 茎生物量比重 Relatively stem biomass | 叶生物量比重 Relatively leaf biomass | 茎叶比 Stem:leaf ratio | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F | p | F | p | F | p | F | p | |||||
氮素 Nitrogen (N) | 1 | 0.33 | 0.58 | 0.81 | 0.38 | 1.18 | 0.30 | 0.92 | 0.35 | |||
水分 Water (W) | 2 | 1.44 | 0.27 | 0.77 | 0.48 | 1.34 | 0.29 | 0.92 | 0.42 | |||
氮素×水分 N × W | 2 | 5.10 | 0.02 | 1.06 | 0.37 | 2.24 | 1.14 | 1.29 | 0.30 |
处理 Treatment | df | 繁殖生物量比重 Relatively reproduction biomass | 茎生物量比重 Relatively stem biomass | 叶生物量比重 Relatively leaf biomass | 茎叶比 Stem:leaf ratio | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F | p | F | p | df | F | p | F | |||||
氮素 Nitrogen (N) | 1 | 24.37 | <0.001 | 0.52 | 0.480 | 16.69 | 0.001 | 7.54 | 0.130 | |||
水分 Water (W) | 2 | 5.29 | 0.015 | 4.17 | 0.032 | 10.67 | 0.001 | 9.05 | 0.002 | |||
氮素×水分 N × W | 2 | 0.87 | 0.440 | 4.68 | 0.020 | 3.48 | 0.510 | 5.14 | 0.016 |
Table 3 ANOVA of the biomass allocation at community scale
处理 Treatment | df | 繁殖生物量比重 Relatively reproduction biomass | 茎生物量比重 Relatively stem biomass | 叶生物量比重 Relatively leaf biomass | 茎叶比 Stem:leaf ratio | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F | p | F | p | df | F | p | F | |||||
氮素 Nitrogen (N) | 1 | 24.37 | <0.001 | 0.52 | 0.480 | 16.69 | 0.001 | 7.54 | 0.130 | |||
水分 Water (W) | 2 | 5.29 | 0.015 | 4.17 | 0.032 | 10.67 | 0.001 | 9.05 | 0.002 | |||
氮素×水分 N × W | 2 | 0.87 | 0.440 | 4.68 | 0.020 | 3.48 | 0.510 | 5.14 | 0.016 |
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