TY - RPRT TI - Evaluating k-nearest neighbor (kNN) imputation models for species-level aboveground forest biomass mapping in northeast China AU - Yuanyuan Fu AU - Hong S He AU - Todd Hawbaker AU - Paul D. Henne AU - Zhiliang Zhu AU - David R. Larsen PY - 2019 DO - 10.3390/rs11172005 UR - https://pubs.usgs.gov/publication/70205135 ID - 70205135 ER -