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民勤荒漠区42种植物的物候型聚类分析
常兆丰,,,韩富贵,,,仲生年,,
Cluster Analysis on Phenological Type of 42 Kind of Plants in Minqin Desert Area
Chang Zhaofeng,,, Han Fugui,,, Zhong Shengnian,,
中国农学通报 . 2009, (10): 228 -234 .  DOI: 10.11924/j.issn.1000-6850.2008-1456