Soil respiration for different plant communities in an urban green-belt of Shanghai

LIANG Jing; FANG Hailan; HAO Guanjun; SUN Qian

doi:10.11833/j.issn.2095-0756.2013.01.004

Volume 30 Issue 1

Apr. 2013

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LIANG Jing, FANG Hailan, HAO Guanjun, SUN Qian. Soil respiration for different plant communities in an urban green-belt of Shanghai[J]. Journal of Zhejiang A&F University, 2013, 30(1): 22-31. doi: 10.11833/j.issn.2095-0756.2013.01.004

Citation:

LIANG Jing, FANG Hailan, HAO Guanjun, SUN Qian. Soil respiration for different plant communities in an urban green-belt of Shanghai[J]. Journal of Zhejiang A&F University, 2013, 30(1): 22-31. doi: 10.11833/j.issn.2095-0756.2013.01.004

Soil respiration for different plant communities in an urban green-belt of Shanghai

doi: 10.11833/j.issn.2095-0756.2013.01.004

1.
Shanghai Institute of Landscape Gardening，Shanghai 200232，China;
2.
Urban and Environmental Science College，Northeast Normal University，Changchun 130024，Jilin，China

More Information

Corresponding author: FANG Hailan
Received Date: 2012-01-05
Rev Recd Date: 2012-03-14
Publish Date: 2013-02-20

Abstract

The soil respiration rate of nine plant communities （Cinnamomum camphora，Torreya grandis-Ginkgo biloba，Cedrus deodara，Ginkgo biboba，Osmanthus fragrans，Cercis sp.，Lolium perenne-Cynodon dactylon，Zoysia japonica，and Cynodon dactylon） in Shanghai City were studied with a CFX-2 Soil Respiration Chamber，and the main influential factors were identified，and the aim was to evaluate correctly soil respiration of urban soil. The digital thermometer was used to test the air temperature，the soil temperature at 5 cm depth and the soil temperature at 10 cm depth. And all data were average of three replications，and a correlation analysis was also employed. Results showed that soil respiration rates varied by season with the maximum found from June to September and the minimum from December to the following March. Daily variation in the soil respiration rate under communities of trees and bushes was generally stable; whereas a lawn had a single-peaked curve. The maximum soil respiration rates （5.51 molm－2s－1） found under Cynodon dactylon and the minimum （2.76 times less） found under a Cercis sp. community. The soil respiration rate had a significant exponential correlation （P＜0.01） with the air temperature，the soil temperature at 5 cm depth，and the soil temperature at 10 cm depth. Soil water content had an effect on soil respiration under lawns，but it had a relatively small influence on tree and bush communities. The soil labile organic carbon content was ranked in the following order: light fraction organic carbon （LFOC）＞ microbial biomass carbon （MBC）＞ dissolved organic carbon （DOC），but MBC and DOC had the greatest influence on the soil respiration rate. The maximum released quantity of CO2 reached to 33.18 thm－2a－1 under lawns, which was 1.95 times that of trees and 2.12 times that of bushes.［Ch，3 fig. 6 tab. 30 ref］
- soil science,
- urban green-belt,
- soil respiration,
- plant communities,
- soil temperature,
- soil water content,
- labile organic carbon,
- CO2

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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 respiration for different plant communities in an urban green-belt of Shanghai

1. Shanghai Institute of Landscape Gardening，Shanghai 200232，China;

2. Urban and Environmental Science College，Northeast Normal University，Changchun 130024，Jilin，China

Corresponding author: FANG Hailan

Received Date: 2012-01-05

Rev Recd Date: 2012-03-14

Publish Date: 2013-02-20

Key words:

Abstract: The soil respiration rate of nine plant communities （Cinnamomum camphora，Torreya grandis-Ginkgo biloba，Cedrus deodara，Ginkgo biboba，Osmanthus fragrans，Cercis sp.，Lolium perenne-Cynodon dactylon，Zoysia japonica，and Cynodon dactylon） in Shanghai City were studied with a CFX-2 Soil Respiration Chamber，and the main influential factors were identified，and the aim was to evaluate correctly soil respiration of urban soil. The digital thermometer was used to test the air temperature，the soil temperature at 5 cm depth and the soil temperature at 10 cm depth. And all data were average of three replications，and a correlation analysis was also employed. Results showed that soil respiration rates varied by season with the maximum found from June to September and the minimum from December to the following March. Daily variation in the soil respiration rate under communities of trees and bushes was generally stable; whereas a lawn had a single-peaked curve. The maximum soil respiration rates （5.51 molm－2s－1） found under Cynodon dactylon and the minimum （2.76 times less） found under a Cercis sp. community. The soil respiration rate had a significant exponential correlation （P＜0.01） with the air temperature，the soil temperature at 5 cm depth，and the soil temperature at 10 cm depth. Soil water content had an effect on soil respiration under lawns，but it had a relatively small influence on tree and bush communities. The soil labile organic carbon content was ranked in the following order: light fraction organic carbon （LFOC）＞ microbial biomass carbon （MBC）＞ dissolved organic carbon （DOC），but MBC and DOC had the greatest influence on the soil respiration rate. The maximum released quantity of CO2 reached to 33.18 thm－2a－1 under lawns, which was 1.95 times that of trees and 2.12 times that of bushes.［Ch，3 fig. 6 tab. 30 ref］

Soil respiration for different plant communities in an urban green-belt of Shanghai

doi: 10.11833/j.issn.2095-0756.2013.01.004

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views