关键词: 气候, 年轮, 生长, 模型, 黄山松, 重力模型, 自然保护区, 最小耗费距离模型, 生态网络

Abstract: This paper dealt with the tree ring growth characteristics of Pinus taiwanensis on the top of Mt. Huangshan. Correlation functions of ring width index with climatic factors were obtained by step by step regression, which could provide a basis for studying the growth of Pinus taiwanensis and for constructing the historically climatic change of Huangshan region. Tree ring growth analysis shows that the pine had a wider range of mean sensitivity of tree ring growth. The tree ring growth model shows that the key factors affecting diameter growth were the solar radiation at the duration of>10℃ and the accumulated temperature in current year, with no relation to precipitation. The tree ring growth was strongly correlated with the climatic factors in current year, positively with the radiation in April and July, and negatively with the average temperature in April. There was no significant relationship with precipitation in current year.

Key words: Climate, Tree ring, Growth, Model, Pinus taiwanensis, nature reserve, gravity model, minimum cumulative resistance model, ecological network