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鼎湖山庆云寺、五棵松两森林土壤剖面有机碳均含快慢变化两组分、两剖面Δ14 C值均随深度增加而减少 .五棵松剖面Δ14 C值在 30～ 40cm层位锐减 ,表明大约 1 5 6 0aBP该剖面附近地质环境发生过大的变动 .14 C表观年龄表明 ,五棵松周围针叶阔叶混交林是在 42 5aBP的土壤上发育起来的 ,与历史记载吻合 .庆云寺、五棵松两剖面核试验产生的14 C的穿透深度分别为 1 0和 2 0cm .
The changes of organic carbon in both soil profiles in both Qingyun Temple and Wukesong Mountain of Dinghushan Mountain included two components, the Δ14 C values of both sections decreased with the increase of depth, and the Δ14 C value of Wukesong section decreased sharply from 30 to 40 cm , Indicating that the geologic environment near the section has changed greatly in about 156 600 a .14 The apparent age of C shows that the coniferous and broad-leaved mixed forest around Wukesong developed on the soil layer of 42 5 a BP and is consistent with historical records The penetration depth of 14 C produced by Qingyun Temple and Wukesong nuclear cross sections is 10 and 20 cm, respectively.