title: Sympodial bamboo species differ in carbon bio-sequestration and stocks within phytoliths of leaf litters and living leaves.
abstract: Phytolith-occluded carbon (PhytOC) with high resistance against decomposition is an important carbon (C) sink in many ecosystems. This study compared concentrations of phytolith in plants and the PhytOC production of seven sympodial bamboo species in southern China, aiming to provide the information for the managed bamboo plantation and selection of bamboo species to maximize phytolith C sequestration. Leaf litters and living leaves of seven sympodial bamboo species were collected from the field sites. Concentrations of phytoliths, silicon (Si), and PhytOC in leaf litters and living leaves were measured. Carbon sequestration as PhytOC was estimated. There was a considerable variation in the PhytOC concentrations in the leaf litters and living leaves among the seven bamboo species. The mean concentrations of PhytOC ranged from 3.4 to 6.9 g kg(-1) in leaf litters and from 1.6 to 5.9 g kg(-1) in living leaves, with the PhytOC production rates ranging from 5.7 to 52.3 kg e-CO2 ha(-1) year(-1) as leaf litters. Dendrocalamopsis oldhami (Munro) Keng f. had the highest PhytOC production rate. Based on a bio-sequestration rate of 52.3 kg e-CO2 ha(-1) year(-1), we estimated that the current 8 × 10(5) ha of sympodial bamboo stands in China could potentially acquire 4.2 × 10(4) t e-CO2 yearly via phytolith carbon. Furthermore, the seven sympodial bamboo species stored 5.38 × 10(5) t e-CO2 as PhytOC in living leaves and leaf litters in China. It is concluded that sympodial bamboos make a significant contribution to C sequestration and that to maximize the PhytOC accumulation, the bamboo species with the highest PhytOC production rate should be selected for plantation.
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Xiang
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China.
authors.forename: Yuqi
authors.initials: Y
authors.lastname: Ying
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China.
authors.forename: Jiangnan
authors.initials: J
authors.lastname: Teng
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China.
authors.forename: Zhangting
authors.initials: Z
authors.lastname: Huang
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China.
authors.forename: Jiasen
authors.initials: J
authors.lastname: Wu
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China.
authors.forename: Cifu
authors.initials: C
authors.lastname: Meng
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, Zhejiang, 311300, China. jiangpeikun@zafu.edu.cn.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, 88 North Huancheng Road, Lin'an, 311300, China. jiangpeikun@zafu.edu.cn.
authors.forename: Peikun
authors.initials: P
authors.lastname: Jiang
authors.affiliation: Department of Animal, Plant and Soil Sciences, La Trobe University, Melbourne Campus, Bundoora, VIC, 3086, Australia. c.tang@latrobe.edu.au.
authors.forename: Caixian
authors.initials: C
authors.lastname: Tang
authors.affiliation: Fujian Academy of Forestry Sciences, Fuzhou, Fujian, 350000, China.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Li
authors.affiliation: Fujian Academy of Forestry Sciences, Fuzhou, Fujian, 350000, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Zheng
mesh_terms: D002244:Carbon / Q000378:metabolism*; D057965:Carbon Sequestration; D002681:China; D004785:Environmental Pollutants / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry; D006109:Poaceae / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D004785:Environmental Pollutants; D002244:Carbon
keywords: Bamboo plantations; Carbon sequestration; Phytolith-occluded carbon (PhytOC); Stable carbon