EFFECTS OF LAND DEGRADATION AND REHABILITATION ON VEGETATION CARBON AND NITROGEN CONTENT OF ALPINE MEADOW IN CHINA
WANG Wen-Ying, WANG Qi-Ji, WANG Gang, JING Zeng-Chun
Chin J Plant Ecol . 2007, (6): 1073 -1078 .  DOI: 10.17521/cjpe.2007.0135