Apparent ages of suspended sediment and soil erosion of the Pearl River (Zhujiang) drainage basin

Wei, Xiuguo; Shen, Chengde; Li, NingLi; Wang, Fushun; Ding, Ping; Wang, Ning; Guo, Zhixing; Liu, Kexin

doi:10.1007/s11434-010-3067-x

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…The forest (Ding et al, ; Shen, Sun, et al, ; Shen, Yi, et al, ; Shen et al, ) and mangrove (Zhang et al, ; Zhang et al, ) soil profiles and paleosols (Ding et al, ) all come from mainland China. Fluvial sediments include Zhujiang River (Gao et al, ; Liu et al, ; Tao et al, ; Wei, Shen, et al, ; Wei, Yi, et al, ) and southwestern Taiwanese rivers (Kao et al, ). Radiocarbon isotopic composition of Zhujiang River dissolved inorganic carbon given by Liu et al ().…”

Section: Methodsmentioning

confidence: 99%

Contrasting Fates of Petrogenic and Biospheric Carbon in the South China Sea

Blattmann

Zhang

Zhao

et al. 2018

Geophysical Research Letters

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A synthesis of published and newly acquired stable and radiocarbon isotope data from soil, river, and marine particulate organic carbon (OC) from the South China Sea drainage and sedimentary basin reveals that OC derived from bedrock‐erosion (petrogenic OC) and marine productivity comprises the major contributors to bulk OC in particulate matter reaching abyssal depths, while soil‐derived OC appears negligible. Aluminum‐radiocarbon relationships of sediments suggest that soil OC initially associated with detrital terrestrial minerals is lost and replaced by marine OC during transport beyond the continental shelf. We estimate that petrogenic OC sinking to a ~30,000 km2 region of the deep northeastern South China Sea accounts for 0.6% of global petrogenic OC burial. The basin‐wide OC isotope patterns coupled with sediment trap observations highlight both the spatial variabilities of OC components as they propagate from source to sedimentary sink and the significance of petrogenic OC to deep ocean sediments.

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