Carbon density characteristics of sparse Ulmus pumila forest and Populus simonii plantation in Onqin Daga Sandy Land and their relationships with stand age
Wei ZHAO, Zhong-Min HU, Hao YANG, Lei-Ming ZHANG, Qun GUO, Zhi-Yan WU, De-Yi LIU, Sheng-Gong LI
Chin J Plant Ecol . 2016, (4): 318 -326 .  DOI: 10.17521/cjpe.2015.1080