Phylogenetic variation of phytolith carbon sequestration in bamboos

文献类型： 外文期刊

第一作者： Li, Beilei

作者： Li, Beilei;Song, Zhaoliang;Li, Zimin;Wang, Hailong;Song, Zhaoliang;Li, Zimin;Li, Zimin;Gui, Renyi;Song, Ruisheng

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2014 年 4 卷

页码：

收录情况： SCI

摘要： Phytoliths, the amorphous silica deposited in plant tissues, can occlude organic carbon (phytolith-occluded carbon, PhytOC) during their formation and play a significant role in the global carbon balance. This study explored phylogenetic variation of phytolith carbon sequestration in bamboos. The phytolith content in bamboo varied substantially from 4.28% to 16.42%, with the highest content in Sasa and the lowest in Chimonobambusa, Indocalamus and Acidosasa. The mean PhytOC production flux and rate in China's bamboo forests were 62.83 kg CO2 ha(-1) y(-1) and 4.5 x 10(8) kg CO2 y(-1), respectively. This implies that 1.4 x 10(9) kg CO2 would be sequestered in world's bamboo phytoliths because the global bamboo distribution area is about three to four times higher than China's bamboo. Therefore, both increasing the bamboo area and selecting high phytolith-content bamboo species would increase the sequestration of atmospheric CO2 within bamboo phytoliths.

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