秦巴山区植被固定CO2释放O2生态价值测评
任志远, 李晶
The values of CO2 fixation and O2 release by vegetation ecosystem in Qinling-Daba Mountains of Shaanxi Province
REN Zhi-yuan, LI Jing
地理研究 . 2004, (6): 769 -775 .  DOI: 10.11821/yj2004060007