Effects of groundwater decline on photosynthetic characteristics and stress tolerance of Ulmus pumila in Hunshandake Sandy Land, China
SU Hua, LI Yong-Geng, SU Ben-Ying, SUN Jian-Xin
Chin J Plant Ecol . 2012, (3): 177 -186 .  DOI: 10.3724/SP.J.1258.2012.00177

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