Potential deposition of biogenic silica source sediment in the Paleo-Yangtze Grand Underwater Delta estimated with satellite remote sensing
Yang, DT; Yin, XQ; dtyang@scsio.ac.cn
2018
发表期刊MARINE GEORESOURCES & GEOTECHNOLOGY
卷号36期号:2页码:245-252
摘要Biogenic silica sediment constitutes one of the critical sources of particle income in the oceans. In this paper, satellite remote sensing of primary production, sinking flux, and molar ratio of Si/C were utilized to elucidate potential biogenic silica sediment in the Paleo-Yangtze Grand Underwater Delta. Primary production retrieval showed that daily primary production in the Paleo-Yangtze Grand Delta was 3.3-10.8Mtd(-1), with 5.8Mtd(-1) on average. Sinking flux, retrieved with in situ observations and satellite remote sensing, was within the range of 109-657mgCm(-2)d(-1), or about 23% of total primary production, on average. A molar ratio of Si/C of 0.11-0.45 interval was used in the area, for the Paleo-Yangtze Grand Delta was similar to coastal water and affected by many factors. Considering that phytoplankton in the Paleo-Yangtze Grand Underwater Delta is mainly diatom (80% on average), about 0.21-0.88 billion tons of biogenic silica source sediment is produced in the area annually. With the reduction of land source sediment occurring in recent years in the area, biogenic silica sediment may be one of the dominant sediment sources for maintaining the future stability of the Paleo-Yangtze Grand Underwater Delta.
部门归属[Yang, Dingtian; Yin, Xiaoqing] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Oceanog Trop, 164 Xingangxi Rd, Guangzhou 510301, Guangdong, Peoples R China
关键词Biogenic Sediment Satellite Remote Sensing The Paleo-yangtze Grand Underwater Delta
学科领域Engineering ; Oceanography ; Mining & Mineral Processing
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17107
专题热带海洋环境国家重点实验室(LTO)
通讯作者dtyang@scsio.ac.cn
推荐引用方式
GB/T 7714
Yang, DT,Yin, XQ,dtyang@scsio.ac.cn. Potential deposition of biogenic silica source sediment in the Paleo-Yangtze Grand Underwater Delta estimated with satellite remote sensing[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2018,36(2):245-252.
APA Yang, DT,Yin, XQ,&dtyang@scsio.ac.cn.(2018).Potential deposition of biogenic silica source sediment in the Paleo-Yangtze Grand Underwater Delta estimated with satellite remote sensing.MARINE GEORESOURCES & GEOTECHNOLOGY,36(2),245-252.
MLA Yang, DT,et al."Potential deposition of biogenic silica source sediment in the Paleo-Yangtze Grand Underwater Delta estimated with satellite remote sensing".MARINE GEORESOURCES & GEOTECHNOLOGY 36.2(2018):245-252.
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