Influence of Long-Term Thinning on the Biomass Carbon and Soil Respiration in a Larch (Larix gmelinii) Forest in Northeastern China
Joint Authors
Wang, Wenjie
Wang, Huimei
Liu, Wei
Zu, Yuangang
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-04
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Thinning management is used to improve timber production, but only a few data are available on how it influences ecosystem C sink capacity.
This study aims to clarify the effects of thinning on C sinks of larch plantations, the most widespread forests in Northeastern China.
Both C influx from biomass production and C efflux from each soil respiration component and its temperature sensitivity were determined for scaling-up ecosystem C sink estimation: microbial composition is measured for clarifying mechanism for respiratory changes from thinning treatment.
Thinning management induced 6.23 mol C m−2 yr−1 increase in biomass C, while the decrease in heterotrophic respiration (Rh) at the thinned sites (0.9 mol C m−2 yr−1) has enhanced 14% of this biomass C increase.
This decrease in Rh was a sum of the 42% decrease (4.1 mol C m−2 yr−1) in litter respiration and 3.2 mol C m−2 yr−1 more CO2 efflux from mineral soil in thinned sites compared with unthinned control.
Increases in temperature, temperature sensitivity, alteration of litters, and microbial composition may be responsible for the contrary changes in Rh from mineral soil and litter respiration, respectively.
These findings manifested that thinning management of larch plantations could enhance biomass accumulation and decrease respiratory efflux from soil, which resulted in the effectiveness improvement in sequestrating C in forest ecosystems.
American Psychological Association (APA)
Wang, Huimei& Liu, Wei& Wang, Wenjie& Zu, Yuangang. 2013. Influence of Long-Term Thinning on the Biomass Carbon and Soil Respiration in a Larch (Larix gmelinii) Forest in Northeastern China. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1033387
Modern Language Association (MLA)
Wang, Huimei…[et al.]. Influence of Long-Term Thinning on the Biomass Carbon and Soil Respiration in a Larch (Larix gmelinii) Forest in Northeastern China. The Scientific World Journal No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1033387
American Medical Association (AMA)
Wang, Huimei& Liu, Wei& Wang, Wenjie& Zu, Yuangang. Influence of Long-Term Thinning on the Biomass Carbon and Soil Respiration in a Larch (Larix gmelinii) Forest in Northeastern China. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1033387
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1033387