论文部分内容阅读
采用多元回归分析和灰色关联分析方法，探讨了下蜀次生栎林蒸腾强度与生态因子的相关关系；并采用曲线积分的方法对林分蒸腾量作了估测。结果表明影响蒸腾强度的主要生态因子是温度和净辐射；其次是空气相对湿度和土壤热流通量；风速和土壤含水率的影响很小。次生栎林１９９６年总蒸腾量为４２８．８８ｍｍ；总蒸发散量为８５８．６８ｍｍ，占全年总降雨量的６８．８５％。研究结果为进一步阐明次生栎林的结构和功能提供了理论基础。
Using multiple regression analysis and gray relational analysis, the correlation between transpiration intensity and ecological factors of secondary Quercus variabilis forest was discussed. Curie integral method was used to estimate the stand transpiration. The results showed that the main ecological factors affecting transpiration intensity were temperature and net radiation, followed by air relative humidity and soil heat flux. The effect of wind speed and soil water content was small. The total transpiration of secondary oak forest was 428.88 mm in 1996; the total evapotranspiration was 858.68 mm, accounting for 68.85% of the total annual rainfall. The results provide a theoretical basis for further clarifying the structure and function of secondary oak forest.