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Biomass increment and mortality losses in tropical secondary forests of Hainan, China

Biomass increment and mortality losses in tropical secondary forests of Hainan, China Secondary forests, created after heavy logging, are an important part of China’s forests. We investigated forest biomass and its accumulation rate in 38 plots in a tropical secondary forest on Hainan Island. These secondary forests are moderate carbon sinks, averaging 1.96–2.17 t C ha−1 a−1. Biomass increment is largely by medium-sized (10–35 m) trees. Tree mortality accounts for almost 30% of the biomass and plays a negligible role in biomass accumulation estimates. Mortality rate is highly dependent on tree size. For small trees and seedlings, it is related to competition due to elevated irradiance after logging. Regarding prospective biomass and rates of accumulation, recovery is not as rapid as in secondary forests of cleared land. Therefore, tropical forests are susceptible to logging operations and need careful forest management. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Forestry Research Springer Journals

Biomass increment and mortality losses in tropical secondary forests of Hainan, China

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References (25)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Northeast Forestry University and Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Life Sciences; Forestry
ISSN
1007-662X
eISSN
1993-0607
DOI
10.1007/s11676-018-0624-7
Publisher site
See Article on Publisher Site

Abstract

Secondary forests, created after heavy logging, are an important part of China’s forests. We investigated forest biomass and its accumulation rate in 38 plots in a tropical secondary forest on Hainan Island. These secondary forests are moderate carbon sinks, averaging 1.96–2.17 t C ha−1 a−1. Biomass increment is largely by medium-sized (10–35 m) trees. Tree mortality accounts for almost 30% of the biomass and plays a negligible role in biomass accumulation estimates. Mortality rate is highly dependent on tree size. For small trees and seedlings, it is related to competition due to elevated irradiance after logging. Regarding prospective biomass and rates of accumulation, recovery is not as rapid as in secondary forests of cleared land. Therefore, tropical forests are susceptible to logging operations and need careful forest management.

Journal

Journal of Forestry ResearchSpringer Journals

Published: Apr 5, 2018

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