海南岛沙老岸礁区滨珊瑚氧、碳同位素对气候的记录

通过对海南岛沙老岸礁中正在连续生长的澄黄滨珊瑚骨骼进行氧，碳同位素的测定，对9年生长的珊瑚骨骼依次分析了352个样品，平均每旬有1－2个控制样品，以此来分析珊瑚生长期间的气候变化。首先分析出每年雨季和旱季的差别，得到雨季和旱季曲线的特征，并得出雨季在每年夏季，旱季在每年的秋冬季，表明海南岛礁区是典型的季风气候区。同时将珊瑚骨骼的氧同位素分析数值与相关记录的气温资料做比较，它们的相关系数为0．97和0．79，并得出以氧同位素分析数值求气温的公式。

Monsoon climatic record of oxygen and carbon isotopic data from Porites lutea in Shalao fringing reef, Hainan Island

Based on isotope data of oxygen and carbon from the skeleton of living Porites lutea in Shalao fringing reef, Hainan Island, 352 samples covering 9 year skeleton growth are measured. On an average, there is one controlling sample every 10 days in order to analyze the climate variation during coral growing periods. Raining and dry seasons are identified and with the studying of the isotope data of oxygen and carbon, raining and dry seasons are found to occur in the spring summer and autumn winter every year, respectively, showing the reef zone in Hainan Island belongs to the typical monsoon climate area. By comparing the isotope data of oxygen and carbon from the skeleton of living Porites lutea with the temperature record, their correlation indexes (0.97 and 0.79) are obtained and their relativity is formularized.