Estimation of aboveground biomass of natural secondary forests based on optical-ALS variable combination and non-parametric models
ZHAO Yinghui, GUO Xinlong, ZHEN Zhen
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2021, (4): 49 -57 .  DOI: 10.12302/j.issn.1000-2006.202010004