...bar=0.9896atm=1020 cmH 2 O 用厘米水柱的对数来表示土水势,称pF O cmH pF m 2 , log 土壤水吸力(soil water suction)是指土壤水在承受 一定吸力的情况下所处的能态,简称吸力。
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soil water suction sampler 土壤水提取器
Soil water content is decreased with the increase of soil water suction.
土壤含水量主要受土壤有机质、土壤质地和土壤胶体性质的影响。
With the increase of soil water suction, the difference among treatments was more obvious.
随土壤水吸力增大，各处理间差异越明显。
Regardless of preventing evaporation or not, soil water suction decreased firstly and then increased with the increase of soil depth, and soil water suction at the same depth increased with time.
无论在隔绝蒸发还是在自然蒸发条件下，短期内土壤水吸力有随土层深度的增加呈先下降后升高的趋势，而同一深度土层水吸力则随时间的推移而升高；
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