TY - Bulletin of Botanical Research A1 - AO Hong;ZHANG Yu T1 - Effects of Water Stress on Photosynthetic Characteristics of Spruce Y1 - 2007-07-20 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 445 EP - 448 VL - 27 IS - 4 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2007.04.014 ER -