Carbon flux extraction for a <em>Phyllostachys violascens</em> ecosystem based on the flux footprint analysis

CHEN Liping; LI Pingheng; MO Lufeng; ZHOU Guomo; LI Jinrong

doi:10.11833/j.issn.2095-0756.2016.01.001

Volume 33 Issue 1

Jan. 2016

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CHEN Liping, LI Pingheng, MO Lufeng, ZHOU Guomo, LI Jinrong. Carbon flux extraction for a Phyllostachys violascens ecosystem based on the flux footprint analysis[J]. Journal of Zhejiang A&F University, 2016, 33(1): 1-10. doi: 10.11833/j.issn.2095-0756.2016.01.001

Citation:

CHEN Liping, LI Pingheng, MO Lufeng, ZHOU Guomo, LI Jinrong. Carbon flux extraction for a Phyllostachys violascens ecosystem based on the flux footprint analysis[J]. Journal of Zhejiang A&F University, 2016, 33(1): 1-10. doi: 10.11833/j.issn.2095-0756.2016.01.001

Carbon flux extraction for a Phyllostachys violascens ecosystem based on the flux footprint analysis

doi: 10.11833/j.issn.2095-0756.2016.01.001

1.
Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, School of Environmental and Resource Sciences, Zhejiang A & F University, Lin’an 311300, Zhejiang, China;
2.
School of Information Engineering, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Funds:

国家林业局引进国际先进农业科学技术计划（948计划）项目（2013-4-71）;国家自然科学基金资助项目（61190114,61303236）;浙江省科技计划项目重大科技专项（2012C13011-1）

Received Date: 2015-05-08
Rev Recd Date: 2015-07-03
Publish Date: 2016-02-20

Abstract

This study was conducted to explain distribution of the flux source area and the spatial representation of flux measurements for mixed Phyllostachys violascens （Lei bamboo） and non-Lei bamboo stands in Taihuyuan. Based on the Flux Source Area Model （FSAM）, footprint and source area functions were calculated using the continuous flux measurement with the open-path eddy covariance system for the full-year of 2013. Carbon fluxes, according to the area occupied and the contribution of Lei and non-Lei bamboo stands, were separated from the measured eddy covariance flux measurement values to determine the monthly average carbon fluxes using the flux footprint analysis. Results showed that the area responsible for 90% of the surface influence was about 2.0 km 2.0 km and was centered at the flux observation tower. Few differences were noted in flux source area at the four cardinal directions; however, the flux source area was much greater in atmospheric conditions that were stable （having a range of 96.19－941.63 m） compared to unstable （with a range of 28.62－313.54 m）. After separation of Lei and non-Lei bamboo stands, the total net carbon sequestration of the Lei bamboo ecosystem was 4.25 thm－2a－1, and when the underlying surface consisted of non-Ph. violascens stands, it was 6.65 thm－2a－1. Without separation, using the eddy covariance measurements as the Lei bamboo ecosystem flux value, total net sequestration was 5.46 thm－2a－1. This research could help with more accurate evaluations of carbon sequestration capacity in a Lei bamboo ecosystem. ［Ch, 4 fig. 4 tab. 29 ref.］
- forest ecology,
- flux source area model（FSAM）,
- Lei bamboo （Phyllostachys violascens） forest,
- eddy covariance,
- carbon flux

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Carbon flux extraction for a Phyllostachys violascens ecosystem based on the flux footprint analysis

1. Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, School of Environmental and Resource Sciences, Zhejiang A & F University, Lin’an 311300, Zhejiang, China;

2. School of Information Engineering, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Funds:

Received Date: 2015-05-08

Rev Recd Date: 2015-07-03

Publish Date: 2016-02-20

Key words:

forest ecology /
flux source area model（FSAM） /
Lei bamboo （Phyllostachys violascens） forest /
eddy covariance /
carbon flux

Abstract: This study was conducted to explain distribution of the flux source area and the spatial representation of flux measurements for mixed Phyllostachys violascens （Lei bamboo） and non-Lei bamboo stands in Taihuyuan. Based on the Flux Source Area Model （FSAM）, footprint and source area functions were calculated using the continuous flux measurement with the open-path eddy covariance system for the full-year of 2013. Carbon fluxes, according to the area occupied and the contribution of Lei and non-Lei bamboo stands, were separated from the measured eddy covariance flux measurement values to determine the monthly average carbon fluxes using the flux footprint analysis. Results showed that the area responsible for 90% of the surface influence was about 2.0 km 2.0 km and was centered at the flux observation tower. Few differences were noted in flux source area at the four cardinal directions; however, the flux source area was much greater in atmospheric conditions that were stable （having a range of 96.19－941.63 m） compared to unstable （with a range of 28.62－313.54 m）. After separation of Lei and non-Lei bamboo stands, the total net carbon sequestration of the Lei bamboo ecosystem was 4.25 thm－2a－1, and when the underlying surface consisted of non-Ph. violascens stands, it was 6.65 thm－2a－1. Without separation, using the eddy covariance measurements as the Lei bamboo ecosystem flux value, total net sequestration was 5.46 thm－2a－1. This research could help with more accurate evaluations of carbon sequestration capacity in a Lei bamboo ecosystem. ［Ch, 4 fig. 4 tab. 29 ref.］

Carbon flux extraction for a Phyllostachys violascens ecosystem based on the flux footprint analysis

doi: 10.11833/j.issn.2095-0756.2016.01.001

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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Carbon flux extraction for a Phyllostachys violascens ecosystem based on the flux footprint analysis

doi: 10.11833/j.issn.2095-0756.2016.01.001

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