Nitrogen, phosphorus contents and stoichiometric characteristics in different organs of three tree species in northeast China
SUN Huizhen, LI Shan, LIU Shanshan, WANG Xingchang
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2024, (5): 147 -155 .  DOI: 10.12302/j.issn.1000-2006.202210003