Silicon isotope fractionation in bamboo and its significance to the biogeochemical cycle of silicon

Ding, Tao; Zhou, Jianxi; Wan, Defang; Chen, Z.Y.; Wang, C.Y.; Zhang, Fei

doi:10.1016/j.gca.2008.01.008

Cited by 147 publications

(136 citation statements)

References 74 publications

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“…In the Yangtze, the preferential uptake of light Si isotopes by rice plant leads to a progressive enrichment of aqueous phase in heavy Si isotopes. Conversely, in the Yellow River in China, the average δ 30 Si value of DSi is +1.7‰ (Gao et al, 2006) and suggests the impact of the colder weather and lower precipitation in this agriculture area on the decreasing biochemical activity (Ding et al, 2008). However, in these systems, the role of secondary clay-sized mineral formation/dissolution/adsorption on the DSi isotope compositions is not clearly determined, while they play a major role in the DSi signature.…”

Section: Scenario 3: Climate Weathering-limitedmentioning

confidence: 93%

“…The Si isotope composition of a sample is expressed as δ 30 Si defined as follows: (Ziegler et al, 2005a, b;Opfergelt et al, 2008Opfergelt et al, , 2010Bern et al, 2010;Cornelis et al, 2010a), the plant Si uptake producing biogenic opal (Douthitt, 1982;Ziegler et al, 2005a;Ding et al, 2005;Opfergelt et al, 2006a, b;Ding et al, 2008;Opfergelt et al, 2008), and the adsorption of Si onto Fe-oxides Opfergelt et al, 2009) are three processes favouring the incorporation of light Si isotopes, contributing to enrich rivers in heavy Si isotopes (De La Rocha et al, 2000;Ding et al, 2004;Georg et al, 2006Georg et al, , 2007. Natural environments impacted simultaneously by all these processes will display a bulk Si isotopic signature of DSi.…”

Section: Tracing Biogeochemical Si Cycle In the Soil-plant Systemmentioning

confidence: 99%

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Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

et al. 2011

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Section: Scenario 3: Climate Weathering-limitedmentioning

confidence: 93%

Section: Tracing Biogeochemical Si Cycle In the Soil-plant Systemmentioning

confidence: 99%

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

et al. 2011

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“…The research on the utilization of SiO2 from bamboo ash has been studied by Ding et al, In 2008. The objective of the study was to compare the silica content found in bamboo parts, such as roots, stems, branches, and leaves and their effects To the biogeochemical cycles of silica.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Structure Characterization of SiO2 from Petung Bamboo Leaf Ash (Dendrocalamus asper (Schult.f.) Backer ex Heyne)

Udaibah

Priyanto

2017

J. Nat. Scien. & Math. Res.

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<p style="text-align: justify;">The Research about Synthesis and Characterization of SiO2 have been worked. We have synthesized Silica from “petung”bamboo leaf ash as SiO2 source. This step used sol gel methode. SiO2 were characterized by Fourier Transform Infra Red (FTIR) to investigated the stucture andX-Ray Diffaction to know about structure and crystallinity. FTIR spectra show peak at 617,22 cm-1 area that spesific for Si-H bond, peak at 786,96 cm-1and 1095,57 cm-1 area specific for Si-O-Si bonds. Difractogram of SiO2 show that there are peak at 2θ 21,99; 31,67 and 38,88 were specific for SiO2 that calcinated at 800oC, while for SiO2 that calcinated at 400oC there were no peak at 2θ 31,67 dan 38,88. That peaks not shown may be because low crystallinity of SiO2 that calcinated at 400oC. Calcination temperature greatly affects the crystallinity of SiO2.©2017 JNSMR UIN Walisongo. All rights reserved.</p>

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“…DSi is unaffected by atmospheric contribution and is treated here as a record of the dissolution of primary silicate minerals. Cycling of Si by vegetation (Derry et al, 2005;Ding et al, 2005Ding et al, , 2008Ding et al, , 2009) and clay precipitation and/or dissolution (Georg et al, 2007) impact the stable isotope composition of dissolved silica but not the export flux, unless the system is out of steady state. The Si-cycle is, perhaps somewhat simplistically, treated as a steady state system in this study.…”

Section: Introductionmentioning

confidence: 99%

Chemical weathering fluxes from volcanic islands and the importance of groundwater: The Hawaiian example

Schopka

Derry

2012

Earth and Planetary Science Letters

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We investigated the products and rates of chemical weathering on the Hawaiian Islands, sampling streams on Kaua'i and both streams and groundwater wells on the island of Hawai'i. Dissolved silica was used to investigate the flowpaths of water drained into streams. We found that flowpaths exert a major control on the observed chemical weathering rates. A strong link exists between the degree of landscape dissection and flowpaths of water through the landscape, with streams in undissected landscapes receiving water mainly from surface runoff and streams in highly dissected landscapes receiving a considerable fraction of their water from groundwater (springs and/or seepage). Total alkalinity in Hawaiian streams and groundwater is produced exclusively by silicate chemical weathering. We find that fluxes of total alkalinity (often called "CO 2 consumption rate" in the geochemical literature), from the islands are lower than those observed in basaltic regions elsewhere. Groundwater is, overall, the major transport vector for products of chemical weathering from the Hawaiian Islands. On the youngest and largest island, submarine groundwater discharge (SGD) transports more than an order of magnitude more solutes to the ocean than surface water and on the youngest part of the youngest island, SGD is the only link between the terrestrial weathering system and the ocean. These results suggest that groundwater, and particularly SGD, needs to be included in geochemical weathering budgets of volcanic islands.

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Silicon isotope fractionation in bamboo and its significance to the biogeochemical cycle of silicon

Cited by 147 publications

References 74 publications

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

Synthesis and Structure Characterization of SiO2 from Petung Bamboo Leaf Ash (Dendrocalamus asper (Schult.f.) Backer ex Heyne)

Chemical weathering fluxes from volcanic islands and the importance of groundwater: The Hawaiian example

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