水汽通量呈单峰型变化趋势,且各月的最大值均在 12:00-14:00 出现,呈现一定规律性,7 月( 0. 1116 g m -2 s -1 ) 最高,12 月 (0郾 0209 g m -2 s -1 ) 最低;季节尺度上,夏季最高(0.0873 g m -2 s -1 ) ,呈现典型单峰型变化趋势,春秋季( 均为 0.0541 g m -2 s -1 ) 次 之,变化特征与夏季相似,冬季最低(0.0221 g m -2 s -1 ) ,曲线变化复杂,波动较大。 毛竹林全年蒸散量占全年降水量 48.26%。 2、
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