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1981～1982年,作者对赤壳龙眼叶片常量元素含量与土壤有效养分含量、pH值的年周期变化进行了研究。通过统计学分析,初步探明叶片各元素含量季节性变化的模式及其特点、土壤有效养分含量、pH值年周期变化的趋势;分析了年周期变化中叶片与土壤分析值之间的相关性。
From 1981 to 1982, the authors studied the leaf elemental constant content and the annual soil nutrient content and pH value of the red dragon shell. Through statistical analysis, the patterns and characteristics of the seasonal changes of the leaf element content, the effective nutrient content of soil and the annual cycle of pH value were preliminarily ascertained. The correlation between the annual leaf period and soil analysis value was analyzed .