根部水淹和土壤养分提升对三峡库区消落带水蓼生长和繁殖特性的影响
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陈禹含, 罗亦夫, 孙鑫晟, 魏冠文, 黄文军, 罗芳丽, 于飞海
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Effects of waterlogging and increased soil nutrients on growth and reproduction of Polygonum hydropiper in the hydro-fluctuation belt of the Three Gorges Reservoir Region
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CHEN Yu-Han, LUO Yi-Fu, SUN Xin-Sheng, WEI Guan-Wen, HUANG Wen-Jun, LUO Fang-Li, YU Fei-Hai
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表1 根部水淹、土壤养分和高程对水蓼形态、生物量和繁殖性状的影响
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Table 1 Effects of waterlogging, soil nutrients, and elevation on morphological, biomass, and reproductive traits of Polygonum hydropiper
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性状 Trait | 根部水淹 Waterlogging (W) | 养分 Nutrient (N) | 高程 Elevation (E) | E × W | E × N | W × N | W × N × E | 形态性状 Morphological trait | | | | | | | | 功能叶长 Length of functional leaf | 7.91** | 0.99 | 0.45 | 0.31 | 0.01 | 0.11 | 0.01 | 功能叶宽 Width of functional leaf | 3.97* | 0.01 | 0.80 | 0.02 | 0.07 | 0.21 | 0.00 | 主茎长 Main stem length | 0.07 | 1.45 | 1.98 | 0.39 | 0.38 | 0.16 | 0.05 | 主茎节数 Node number of main stem | 0.36 | 2.41 | 0.17 | 0.28 | 2.22 | 1.09 | 0.00 | 总节数 Total node number | 2.74 | 3.04# | 1.14 | 2.17 | 1.45 | 0.64 | 0.01 | 总分枝数 Total branch number | 2.97# | 3.87# | 0.55 | 2.18 | 0.55 | 0.55 | 0.06 | 生物量性状 Biomass trait | | | | | | | | 根生物量 Root biomass | 2.58 | 5.08* | 3.03# | 0.84 | 0.20 | 4.28* | 0.71 | 茎生物量 Stem biomass | 1.88 | 0.86 | 1.27 | 2.71 | 0.34 | 2.26 | 0.05 | 叶生物量 Leaf biomass | 3.55# | 0.74 | 5.44* | 0.72 | 0.19 | 2.70 | 0.00 | 总生物量 Total biomass | 6.74* | 2.87# | 0.46 | 2.43 | 0.52 | 1.20 | 0.14 | 繁殖性状 Reproductive trait | | | | | | | | 始花时间 First flowering time | 0.37 | 0.09 | 4.05* | 0.00 | 0.58 | 0.33 | 0.17 | 花生物量 Flower biomass | 10.44** | 2.98# | 2.59 | 0.14 | 1.57 | 1.47 | 0.16 | 繁殖分配 Reproduction allocation | 2.36 | 0.44 | 6.75* | 0.50 | 0.23 | 2.48 | 0.30 |
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