EFFECTS OF BIOLOGICAL CRUSTS ON THE GERMINATION OF FIVE DESERT VASCULAR PLANTS WITH DIFFERENT SEED MORPHOLOGIES
NIE Hua-Li, ZHANG Yuan-Ming, WU Nan, ZHANG Jing, ZHANG Bing-Chang
Chin J Plant Ecol . 2009, (1): 161 -170 .  DOI: 10.3773/j.issn.1005-264x.2009.01.018