宁夏荒漠草原不同封育年限优势种群的生态位特征

张晶晶, 许冬梅

Niche Characteristics of Dominant Plant Populations in Desert Steppe of Ningxia with Different Enclosure Times

ZHANG Jing-jing, XU Dong-mei

. 2013, (1): 73 -78 .