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于1984年生长季,对河北省隆化县碱房乡大水泉村西山28年生油松人工纯林两块标准地水量平衡各分量进行了观测研究。其中1号标准地郁闭度0.7,密度2742株/ha;4号标准地郁闭度0.4,密度1358株/ha。两块标准地林分水量分配有一定差异。1号标准地林冠截留和树木蒸腾均较4号标准地大,地表径流和林地蒸发散小于4号标准地。两块标准地树木蒸腾、枯枝落叶截持、地表径流和土壤水分贮量变化差异均较小,而林地蒸发散和林冠截留差异较大。
In the growing season of 1984, the balance of the two standard groundwater balance components of the 28-year-old Pinus tabulaeformis plantation in Xishan, Daishuquan, shenfang village, shenfang county, Longhua county, Hebei province was studied. One of the standard canopy density 0.7, density 2742 plants / ha; 4 standard canopy density 0.4, density 1358 plants / ha. There are some differences in the allocation of water volume between two standard stands. The standard canopy interception and tree transpiration of standard 1 were larger than that of standard 4, and the surface runoff and woodland evapotranspiration were less than the standard of No. 4. There were not significant differences in transpiration, litter interception, surface runoff and soil water storage among the two standard plots, but there were significant differences between forest evapotranspiration and canopy interception.