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地理科学  2008 

闽江河口感潮湿地入侵种互花米草甲烷通量及影响因子

, PP. 826-832

Keywords: 甲烷通量,互花米草,涨落潮,季节和日动态,闽江口湿地

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Abstract:

2007年利用静态箱-气相色谱仪法对闽江河口湿地外来入侵种互花米草斑块甲烷通量进行测定。结果表明,互花米草甲烷排放通量有明显的季节变化,涨潮前和落潮后甲烷通量平均值分别为13.12和12.94mg/(m2·h);涨落潮过程,互花米草斑块排放到潮水的甲烷通量(3.07mg/(m2·h)大于排放到大气的甲烷通量(2.35mg/(m2·h),差异不显著;涨落潮过程中排向大气和潮水的甲烷通量之和(5.42mg/(m2·h)与涨潮前、落潮后甲烷通量差异显著;互花米草排向大气甲烷总通量86.86g/(m2·a),排向潮水甲烷总通量7.84g/(m2·a)。

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