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在1984年生长季对河北隆化碱房林场28年生油松人工林的透流、干流和树截载留进行了研究。结果表明:在该林分中透流、干流和树冠截留均与降水量密切相关。一年中,随叶量增加,透流率和干流率减少,树冠截留率增加。生长季透流总量为:1号标准地(郁闭度0.7)占降水量的69.7％,4号标准地(郁闭度0.4)占降水量的80.4％;两块标准地的总干流量分别为降水量的22.5％和16.5％。并对应用Gash模型估计林冠截留量进行了讨论。
In the growing season of 1984, the transpiration, stem flow and tree truncation of the 28-year-old Pinus tabulaeformis plantation in Longhua shenfanglin Farm, Hebei Province were studied. The results showed that the transpiration, stem flow and canopy interception were closely related to precipitation in this stand. In one year, with the increase of the amount of leaf, the rate of through-flow and the decrease of dry-flow rate increased the canopy interception rate. The total amount of water in the growing season was as follows: No. 1 standard (canopy density 0.7) accounted for 69.7% of precipitation, No. 4 standard (density 0.4) accounted for 80.4% of the total precipitation; Respectively 22.5% and 16.5% of the precipitation. The application of Gash model to estimate canopy interception was discussed.