JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 1995, Vol. 19 ›› Issue (04): 85-88.doi: 10.3969/j.jssn.1000-2006.1995.04.016
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Ji Yonghua; Zhang Jinn; Kang Lixin (Forest Research Institute of Jiangsu Province Nanjing 211153)Chen Xiangyi; Zhao Hongwu (Foresty Station of Nantong)