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应用热量平衡原理 ,探讨了陕西淳化县油松及侧柏人工幼林的热量平衡规律。结果表明 :4～ 5月份 ,油松和侧柏人工幼林的净辐射能分别为 6 2 .6 1～ 6 6 7.47W/ m2 和78.71～ 6 37.2 3W/ m2 ,油松林的乱流热交换量、土壤热通量、潜热通量分别为 1 7.0 7～2 0 2 .34、5 .48～ 1 5 .1 3、36 .81～ 45 7.2 5 W/ m2 ,侧柏林分别为 2 4.94～ 2 48.31、 6 .0 8～2 1 .1 1、40 .0 7～ 378.44W/ m2 。在相同条件下 ,该区油松林的耗水量大于侧柏林
The heat balance principle of Pinus tabulaeformis and Platycladus orientalis young plantation in Chunhua County of Shaanxi Province was discussed based on the principle of heat balance. The results showed that the net radiant energy of Pinus tabulaeformis and Platycladus orientalis young plantations from June to May were 62.61-664.77W / m2 and 78.71-637.2 3W / m2, respectively. The turbulent heat exchange capacity , Soil heat flux and latent heat flux were 1 7.0 7 ~ 2 0 2 .34, 5 .48 ~ 1 5 .1 3, 36 ~ 81 ~ 45 7.2 5 W / m2, respectively. 48.31, 6.08 ~ 2 1 .1 1,40. 0 7 ~ 378.44W / m2. Under the same conditions, the water consumption of Pinus tabulaeformis forest in this area is greater than that of Platycladus orientalis