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以阔叶红松林8个主要组成树种为研究对象,根据水分和热量是决定植物地理分布的主要因素的原理,应用干燥度和≥10℃的年积温建立了树木生长水热指数;设在最佳环境条件下树木的生长与叶量成正比,与本身大小成反比,推导出树木最优生长模型。然后,应用该水热指数和生长模型模拟了不同水热条件下树木的最优生长过程,揭示了不同树种、或同一树种在不同水热条件下的生长特征。这些研究结果可用于划分树种地理分布区质量等级和评价林分的生长。
Based on the principle that water and heat are the main factors that determine the geographical distribution of plants, eight main tree species of broad-leaved Korean pine forests were selected as research objects. The water-heat index of tree growth was established by using dryness and annual accumulated temperature of ≥10 ℃. Under good environmental conditions, the growth of trees is proportional to the amount of leaves, inversely proportional to their size, and the optimal growth model of trees is derived. Then, using the hydrothermal index and growth model to simulate the optimal growth process of trees under different hydrothermal conditions, revealing the growth characteristics of different tree species or the same species under different hydrothermal conditions. These findings can be used to demarcate the quality levels of tree species and evaluate the stand growth.