Silicon distribution in bamboo stands of different ecotypes

LIU Leilei; ZHOU Guomo; SONG Zhaoliang; GAO Peijun; LI Zimin

doi:10.11833/j.issn.2095-0756.2015.05.003

Volume 32 Issue 5

Sep. 2015

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LIU Leilei, ZHOU Guomo, SONG Zhaoliang, GAO Peijun, LI Zimin. Silicon distribution in bamboo stands of different ecotypes[J]. Journal of Zhejiang A&F University, 2015, 32(5): 668-674. doi: 10.11833/j.issn.2095-0756.2015.05.003

Citation:

LIU Leilei, ZHOU Guomo, SONG Zhaoliang, GAO Peijun, LI Zimin. Silicon distribution in bamboo stands of different ecotypes[J]. Journal of Zhejiang A&F University, 2015, 32(5): 668-674. doi: 10.11833/j.issn.2095-0756.2015.05.003

Silicon distribution in bamboo stands of different ecotypes

doi: 10.11833/j.issn.2095-0756.2015.05.003

1.
School of Forestry and Biotechnology, Zhejiang A & F University, Lin’an 311300, Zhejiang, China;
2.
School of Environmemtel & Resource Sciences, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Funds:

浙江农林大学青年拔尖人才计划项目;浙江省151人才工程第三层次省财政联合资助项目（2035110003）

Received Date: 2014-12-02
Rev Recd Date: 2015-01-05
Publish Date: 2015-10-20

Abstract

To provide scientific references for understanding the role of phytoliths in biogeochemical carbon sequestration, organs （leaf, branch, culm, stump, root, and rhizome） of ten representative bamboo species belonging to three bamboo ecotypes （mix, scatter, and cluster） were sampled at the Jiyong Plantation Experimental Site at Zhejiang A F University. The biological Si cycle in bamboo ecosystems was studied based on the above-ground biomass production and silica accumulations in bamboo organs. Results showed that the Si content of the organs in different bamboo species significantly ranged from 1.77 gkg－1 to 63.10 gkg－1 with leaf ＞ branch ＞ stump ＞ root ＞ rhizome ＞ culm （P＜0.01）. For the three bamboo ecotypes, Si distribution was mixed ＞ scattered ＞ clustered; additionally, mean Si storage and fluxes of Si for bamboo ecotypes were mixed ＞ scattered ＞ clustered. Based on the analytic results of this study, we find that the mean flux for phytolith carbon sequestration in bamboo ecotypes was scattered ＞ mixed ＞ clustered. Furthermore, for China the rate of phytolith carbon sequestration in scattered bamboo was 5.46 times greater than clustered bamboo and 35.7 times greater than mixed bamboo. Thus, this study highlights that increasing the area of bamboo planting and electing a scattered bamboo ecotype characterized by bamboo species with high carbon content in phytoliths would increase atmospheric CO2 sequestration. However, further research should be systematically carried out to identify silicon and carbon cycles in national and global soil-bamboo systems. ［Ch, 3 fig. 1 tab. 34 ref.］
- forest ecology,
- bamboo,
- silicon （Si）,
- biological cycling,
- carbon sequestration,
- phytoliths

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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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Silicon distribution in bamboo stands of different ecotypes

1. School of Forestry and Biotechnology, Zhejiang A & F University, Lin’an 311300, Zhejiang, China;

2. School of Environmemtel & Resource Sciences, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Funds:

浙江农林大学青年拔尖人才计划项目;浙江省151人才工程第三层次省财政联合资助项目（2035110003）

Received Date: 2014-12-02

Rev Recd Date: 2015-01-05

Publish Date: 2015-10-20

Key words:

Abstract: To provide scientific references for understanding the role of phytoliths in biogeochemical carbon sequestration, organs （leaf, branch, culm, stump, root, and rhizome） of ten representative bamboo species belonging to three bamboo ecotypes （mix, scatter, and cluster） were sampled at the Jiyong Plantation Experimental Site at Zhejiang A F University. The biological Si cycle in bamboo ecosystems was studied based on the above-ground biomass production and silica accumulations in bamboo organs. Results showed that the Si content of the organs in different bamboo species significantly ranged from 1.77 gkg－1 to 63.10 gkg－1 with leaf ＞ branch ＞ stump ＞ root ＞ rhizome ＞ culm （P＜0.01）. For the three bamboo ecotypes, Si distribution was mixed ＞ scattered ＞ clustered; additionally, mean Si storage and fluxes of Si for bamboo ecotypes were mixed ＞ scattered ＞ clustered. Based on the analytic results of this study, we find that the mean flux for phytolith carbon sequestration in bamboo ecotypes was scattered ＞ mixed ＞ clustered. Furthermore, for China the rate of phytolith carbon sequestration in scattered bamboo was 5.46 times greater than clustered bamboo and 35.7 times greater than mixed bamboo. Thus, this study highlights that increasing the area of bamboo planting and electing a scattered bamboo ecotype characterized by bamboo species with high carbon content in phytoliths would increase atmospheric CO2 sequestration. However, further research should be systematically carried out to identify silicon and carbon cycles in national and global soil-bamboo systems. ［Ch, 3 fig. 1 tab. 34 ref.］

Silicon distribution in bamboo stands of different ecotypes

doi: 10.11833/j.issn.2095-0756.2015.05.003

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

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