Soil CO<sub>2</sub> and N<sub>2</sub>O fluxes from four typical plantations in southern China

LI Hai-fang; DUAN Wen-jun

doi:10.11833/j.issn.2095-0756.2011.01.005

Volume 28 Issue 1

Feb. 2011

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LI Hai-fang, DUAN Wen-jun. Soil CO2 and N2O fluxes from four typical plantations in southern China[J]. Journal of Zhejiang A&F University, 2011, 28(1): 26-32. doi: 10.11833/j.issn.2095-0756.2011.01.005

Citation:

LI Hai-fang, DUAN Wen-jun. Soil CO₂ and N₂O fluxes from four typical plantations in southern China[J]. Journal of Zhejiang A&F University, 2011, 28(1): 26-32. doi: 10.11833/j.issn.2095-0756.2011.01.005

Soil CO₂ and N₂O fluxes from four typical plantations in southern China

doi: 10.11833/j.issn.2095-0756.2011.01.005

LI Hai-fang^{1,2
,},
DUAN Wen-jun¹

1.
College of Ecotourism，Guilin University of Technology，Guilin 541004，Guangxi，China;
2.
South China Botanical Garden，Chinese Academy of Sciences，Guangzhou 510650，Guangdong，China

More Information

Corresponding author: LI Hai-fang
Publish Date: 2011-02-20

Abstract

Carbon dioxide （CO2） and nitrous oxide （N2O），which mainly come from soils in forest ecosystems，are important greenhouse gases. Both CO2 and N2O fluxes in a Eucalyptus urophylla plantation（EUp），an Acacia crassicarpa plantation （ACp），a 10-species-mixed plantation （Tp），and a 30-species-mixed plantation （THp） were measured in situ using a static chamber and gas chromatography（GS） technique at the Heshan Hilly Land Interdisciplinary Experimental Station，Chinese Academy of Sciences（CAS）. Results from the four plantations showed that CO2 and N2O fluxes varied widely during the year，exhibited a relatively high level during the rainy season，and kept a relatively low level in the dry season. Also，peak CO2 and N2O fluxes appeared in the rainy season. Compared to Tp and THp，significantly（P＜0.05） higher values of microbial biomass carbon （MBC） were found in EUp and ACp with CO2 fluxes also significantly（P＜0.05） higher. The fastest NO3-N uptake was in EUp as were the lowest soil N2O fluxes. These results indicated that soil temperature，soil moisture，MBC，and soil substrate（NO3-N and soil organic carbon，SOC） could be important controlling variables for soil CO2 and N2O fluxes.［Ch，2 fig. 3 tab. 29 ref.］
- soil science,
- soil CO2 fluxes,
- N2O fluxes,
- pure plantations,
- mixed plantations,
- reenhouse gases,
- forest management practices

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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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Soil CO₂ and N₂O fluxes from four typical plantations in southern China

1. College of Ecotourism，Guilin University of Technology，Guilin 541004，Guangxi，China;

2. South China Botanical Garden，Chinese Academy of Sciences，Guangzhou 510650，Guangdong，China

Corresponding author: LI Hai-fang

Publish Date: 2011-02-20

Key words:

Abstract: Carbon dioxide （CO2） and nitrous oxide （N2O），which mainly come from soils in forest ecosystems，are important greenhouse gases. Both CO2 and N2O fluxes in a Eucalyptus urophylla plantation（EUp），an Acacia crassicarpa plantation （ACp），a 10-species-mixed plantation （Tp），and a 30-species-mixed plantation （THp） were measured in situ using a static chamber and gas chromatography（GS） technique at the Heshan Hilly Land Interdisciplinary Experimental Station，Chinese Academy of Sciences（CAS）. Results from the four plantations showed that CO2 and N2O fluxes varied widely during the year，exhibited a relatively high level during the rainy season，and kept a relatively low level in the dry season. Also，peak CO2 and N2O fluxes appeared in the rainy season. Compared to Tp and THp，significantly（P＜0.05） higher values of microbial biomass carbon （MBC） were found in EUp and ACp with CO2 fluxes also significantly（P＜0.05） higher. The fastest NO3-N uptake was in EUp as were the lowest soil N2O fluxes. These results indicated that soil temperature，soil moisture，MBC，and soil substrate（NO3-N and soil organic carbon，SOC） could be important controlling variables for soil CO2 and N2O fluxes.［Ch，2 fig. 3 tab. 29 ref.］

Soil CO₂ and N₂O fluxes from four typical plantations in southern China

doi: 10.11833/j.issn.2095-0756.2011.01.005

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views

Soil CO₂ and N₂O fluxes from four typical plantations in southern China

doi: 10.11833/j.issn.2095-0756.2011.01.005

1. College of Ecotourism，Guilin University of Technology，Guilin 541004，Guangxi，China;

2. South China Botanical Garden，Chinese Academy of Sciences，Guangzhou 510650，Guangdong，China

Corresponding author: LI Hai-fang

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Soil CO2 and N2O fluxes from four typical plantations in southern China

doi: 10.11833/j.issn.2095-0756.2011.01.005

Abstract

Relative Article

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通讯作者: 陈斌, bchen63@163.com

Related

Proportional views

Soil CO2 and N2O fluxes from four typical plantations in southern China

doi: 10.11833/j.issn.2095-0756.2011.01.005

1. College of Ecotourism，Guilin University of Technology，Guilin 541004，Guangxi，China; 2. South China Botanical Garden，Chinese Academy of Sciences，Guangzhou 510650，Guangdong，China

Corresponding author: LI Hai-fang

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Soil CO₂ and N₂O fluxes from four typical plantations in southern China

Soil CO₂ and N₂O fluxes from four typical plantations in southern China

1. College of Ecotourism，Guilin University of Technology，Guilin 541004，Guangxi，China;

2. South China Botanical Garden，Chinese Academy of Sciences，Guangzhou 510650，Guangdong，China