鄂西南亚高山不同覆被类型泥炭藓沼泽湿地甲烷排放特征及其环境影响因子
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Characteristics and environmental factors controlling methane emission from a Sphagnum bog with different plant cover types in a subalpine area, southwest of Hubei, China
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图2. 泥炭藓沼泽湿地甲烷(CH4)排放通量日变化(平均值+标准误)。▲, 裸露样地; ■, 泥炭藓覆被样地; ●, 金发藓覆被样地。线性图表示5 cm土壤温度, 点线图表示CH4通量, 柱状图表示气温。*表示同一测定时间不同覆被类型间差异显著(p < 0.05), **表示同一测定时间不同覆被类型间差异极显著(p < 0.01)。 |
Fig. 2. Diurnal changes of methane (CH4) emission fluxes in the Sphagnum bog (mean + SE). ▲, bare land plot; ■, Sphagnum paluster plot; ●, Polytrichum commune plot. The lines represent soil temperature at 5 cm depth, the lines with points represent CH4 emission fluxes, the bars represent air temperature. * represents a significant difference among the three cover types at the same time (p < 0.05), ** represents a significant difference among the three cover types at the same time (p < 0.01). |
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