PDF
Full
Outline
Suspended particulate matter (SPM) plays a key role in the “source-sink” deposition system, and internal isolated waves, a common dynamical phenomenon in the South China Sea, have been shown to be an important factor influencing the distribution of SPM and the deposition process. The study was carried out in September 2022 in the sea area from Luzon Strait to Dongsha Islands, using LISST-deep and CTD equipment for simultaneous observation to study the distribution of suspended particulate matter in terms of particle size and volume concentration. The satellite remote sensing data during the investigation period were used to delineate the influence range of internal isolated waves and to reveal the influence of internal isolated waves on the characterization changes of suspended particulate matter during transport from a kinetic point of view. It was found that: (1) the distribution of suspended particulate matter of smaller sizes (15−25 μm) was dominated in the amplitude depth interval (6−79 m) of the inner isolated wave, and the closer the depth of the trough of the inner isolated wave was, the higher the frequency of the occurrence of suspended particulate matter of smaller sizes. (2) The distribution of suspended particles spreads from the center of the inner isolated wave crest line to both sides, forming a low volume concentration zone (≤91 μL/L) in the center, and forming a high concentration zone (≥500 μL/L) on both sides of the crest line and the distal end of the propagation path of the inner isolated wave. In addition, the study further reveals that the internal isolated wave breaks down the aggregated suspended particles into smaller size and single composition particles through modification, and changes the volume concentration distribution of the suspended particles at different locations of the crest line, propagation path and amplitude depth through control, which provides an important theoretical basis for the understanding of the South China Sea source-sink deposition system.
PDF
166
78
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
