我国大口径沉积物柱状取样技术取得新突破
近日，中国科学院海洋研究所研发的大口径沉积物柱状取样系统，在南黄海海域完成海上试验验证，取得重大突破。该系统成功获取单柱、连续、低扰动500毫米大口径柱状沉积物7.89米，创造了该海域大口径柱状沉积物的最长取样记录，填补了我国大口径沉积物取样领域的技术和装备空白。
大口径沉积物柱状取样技术是获取海洋沉积物样品的重要手段，广泛应用于古海洋学、古气候学、古生态学等领域。此前，我国在该领域的技术和装备相对落后，大口径沉积物取样深度和质量难以满足科研需求。
中国科学院海洋研究所科研团队历时多年攻关，研发了这套大口径沉积物柱状取样系统。该系统采用先进的取样技术和设备，包括大口径取样器、动力定位系统、高精度声学测深系统等，实现了对沉积物柱状样品的精准定位、低扰动取样和连续取样。
此次海上试验验证中，该系统在南黄海海域成功获取了一根长达7.89米的500毫米大口径柱状沉积物样品，样品完整连续，扰动极小，为后续的科学研究提供了宝贵资料。
该技术突破标志着我国在大口径沉积物取样领域迈出了重要一步，将有力支撑我国海洋科学研究和海洋资源开发。未来，科研团队将进一步优化和完善该系统，以满足不同海域和不同深度沉积物取样的需求，为我国海洋科学发展做出更大贡献。
英语如下：
**Headline: Breakthrough in Large-Diameter Sediment Sampling Technology: Longest Sampling Record Set**
**Keywords: Sampling technology, sediment, Southern Yellow Sea**
**News Content:**
China has made a new breakthrough in large-diameter sediment coring technology.
Recently, the large-diameter sediment coring system developed by the Institute of Oceanology, Chinese Academy of Sciences (IOCAS), completed a successful sea trial in the Southern Yellow Sea, achieving a major breakthrough. The system successfully obtained a 7.89-meter-long, 500-millimeter-diameter, single-column, continuous, and low-disturbance large-diameter sediment core, setting the longest sampling record for large-diameter sediment cores in the area and filling the gap in China’s technology and equipment in the field of large-diameter sediment sampling.
Large-diameter sediment coring technology is an important means of obtaining marine sediment samples and is widely used in fields such as paleoceanography, paleoclimatology, and paleoecology. Previously, China’s technology and equipment in this field were relatively backward, and the depth and quality of large-diameter sediment sampling could notmeet scientific research needs.
After years of research, the IOCAS research team developed this large-diameter sediment coring system. The system adopts advanced sampling technology and equipment, including a large-diameter sampler, a dynamic positioning system, and a high-precision acoustic depth sounding system, which enables precise positioning, low-disturbance sampling, and continuous sampling of sediment core samples.
During the sea trial, the system successfully obtained a 7.89-meter-long, 500-millimeter-diameter large-diameter sediment core sample in the Southern Yellow Sea. The sample was complete, continuous, and minimally disturbed, providing valuable data for subsequent scientific research.
This technological breakthrough marks an important step forward for China in the field of large-diameter sediment sampling and will strongly support China’s marine scientific research and marine resource development. In the future, the research team will further optimize and improve the system to meet the needs of sediment sampling in different sea areas and at different depths, making greater contributions to the development of China’s marine science.
【来源】http://www.chinanews.com/gn/2024/03-07/10175870.shtml
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