亚热带季风常绿阔叶林树木年轮的<sup>13</sup>C/<sup>12</sup>C和空气CO<sub>2</sub>浓度变化

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¹³C/¹²C ratio in tree ring of subtropical monsoon evergreen broad-leaved forest and CO₂concentration in atmosphere

Sun Guchou, Lin Zhifang

Chinese Journal of Applied Ecology . 1992, (4): 291 -295 .