EFFECT OF RANGE FIRE ON NITROGEN FIXATION OF COLLEMA TENAX IN A SEMIARID GRASSLAND OF INNER MONGOLIA, CHINA
WU Qing-Feng, LIU Hua-Jie
Chin J Plant Ecol . 2008, (4): 908 -913 .  DOI: 10.3773/j.issn.1005-264x.2008.04.020

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