Preprint Article Version 1 NOT YET PEER-REVIEWED

Biomass Equations for 24 Understory Species in Coniferous and Broadleaved Mixed Forests in Northeastern China

  1. Key Laboratory for Forest Resources & Ecosystem Processes, Beijing Forestry University, Beijing 100083, China
  2. Forestry College, Beihua University, Jilin 130013, China
Version 1 : Received: 27 November 2016 / Approved: 28 November 2016 / Online: 28 November 2016 (04:41:35 CET)

How to cite: He, H.; Zhang, C.; Du, F.; Zhao, X.; Yang, S.; Zuo, Q. Biomass Equations for 24 Understory Species in Coniferous and Broadleaved Mixed Forests in Northeastern China. Preprints 2016, 2016110140 (doi: 10.20944/preprints201611.0140.v1). He, H.; Zhang, C.; Du, F.; Zhao, X.; Yang, S.; Zuo, Q. Biomass Equations for 24 Understory Species in Coniferous and Broadleaved Mixed Forests in Northeastern China. Preprints 2016, 2016110140 (doi: 10.20944/preprints201611.0140.v1).

Abstract

Understory plants are important components of forest ecosystem productivity and diversity. Compared to biomass models of overstory canopy trees, few are available for understory saplings and shrubs and therefore their roles in estimation of forest carbon pools are often ignored. In this study, we harvested 24 understory species including 4 saplings, 9 tree-like shrubs and 11 typical shrubs in coniferous and broadleaved mixed forest in northeastern China and developed the best fit allometric equations of above- and below-ground and total biomass by species-specific or multispecies using morphological measurements of basal diameter, height and crown area as independent variables. The result showed that single basal diameter, height or crown area had good explanatory power for both species-specific and multispecies (p<0.001). The best-fit models included only basal diameter in sapling and tree-like shrubs, and combinations of crown area, height, and basal diameter in typical shrubs. The logarithmic model was most desired among the 4 model forms of linear, quadratic, multiple linear and logarithmic, for species-specific and multispecies. The models we developed should help the estimation of forest ecosystem carbon stocks, especially for belowground component, and provide tools for quantification of individual species biomass of understory plants.

Subject Areas

understory species; allometric biomass equation; species-specific and multispecies; temperate coniferous and broadleaved mixed forest; northeastern China

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