super 13) CO (sub 2) and (super 14) CO (sub 2) measurements on soil atmosphere sampled in the western Great Plains of the US. Herbert Haas, D W Fisher,Donald C. Thorstenson,E P WeeksRADIOCARBON（1983）引用 49|浏览8暂无评分AI 理解论文溯源树样例生成溯源树，研究论文发展脉络Chat Paper正在生成论文摘要
