Benthic Carbon Mineralization in Hadal Trenches: Insights From In Situ Determination of Benthic Oxygen Consumption
Benthic Carbon Mineralization in Hadal Trenches: Insights From In Situ Determination of Benthic Oxygen Consumption
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深渊海沟中的底栖碳矿化:原位测定底栖耗氧量的见解
DOI:
10.1002/2017gl076232
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发表时间:
2018-03
影响因子:
5.2
通讯作者:
Duofu Chen
中科院分区:
文献类型:
--
作者:
Min Luo;Ronnie N. Glud;Binbin Pan;Frank Wenzhoefer;Yunping Xu;Gang Lin;Duofu Chen
Hadal trenches have been proposed as depocenters of organic material and hot spots for organic matter mineralization. In this study, we for the first time quantified the total benthic O2 uptake in hadal trenches using in situ chamber incubations. Three trenches in the tropical Pacific were targeted and exhibited relatively high diagenetic activity given the great water depths, that is, the Mariana Trench (2.0 × 102 μmol O2 m−2 d−1, 10,853 m), the Mussau Trench (2.7 ± 0.1 × 102 μmol O2 m−2 d−1, 7,011 m), and the New Britain Trench (6.0 ± 0.1 × 102 μmol O2 m−2 d−1, 8,225 m). Combined with the analyses of total organic carbon and δ13C of total organic carbon in the sediments and previously published in situ O2 microprofiles from hadal settings, we suggest that hadal benthic carbon mineralization partly is governed by the surface production and also is linked to the distance from land. Therefore, we highlight that terrestrial organic matter can be of importance in sustaining benthic communities in some hadal settings.
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影响因子:
3
作者:
Benner, R
通讯作者:
Benner, R
影响因子:
2.1
作者:
A. Ablaev;V. D. Khudik;Marya G. Biryulina;S. P. Pletnev;Akbar A. Ashurov
通讯作者:
A. Ablaev;V. D. Khudik;Marya G. Biryulina;S. P. Pletnev;Akbar A. Ashurov
DOI:
--
发表时间:
2019
期刊:
--
影响因子:
--
作者:
Y. Hisaki
通讯作者:
Y. Hisaki
影响因子:
2.9
作者:
CANFIELD, DE;JORGENSEN, BB;HALL, POJ
通讯作者:
HALL, POJ
影响因子:
5.2
作者:
Fujioka, K;Okino, K;Ohara, Y
通讯作者:
Ohara, Y