海洋悬浮物浓度的长期演变特征及机制

Study on the Long-Term Variations in Marine Suspended Particulate Matter Concentration

受气候变化和人类活动的影响,21世纪以来全球海洋的悬浮物浓度发生了显著变化。悬浮物浓度的剧烈变化不可避免地对海洋生态环境、地貌演化和生物地球化学循环产生重大影响。随着气候变化对人类活动的环境影响研究的深入,以及卫星遥感数据的不断积累,悬浮物浓度的长期变化趋势及其机制已成为地球科学研究的热点。本文概括性地总结了海洋悬浮物浓度长期变化的国内外研究进展,指出了中国近海相关研究的不足之处,并对未来发展方向作出了展望。

Influenced by the climate change and human activities,the marine suspended particulate matter(SPM)concentration has undergone significant changes since the 21st century.The drastic chan-ges in SPM concentration inevitably have a major impact on marine ecological environments,geomor-phological evolution,and biogeochemical cycles.With the deepening research on the environmental im-pact of climate change and human activities,as well as the continuous accumulation of satellite remote sensing data,the long-term variation trends and mechanisms of SPM concentration have become a hot topic in earth science research.This paper provides a comprehensive summary of the domestic and inter-national research progress on the long-term variations in SPM concentration,points out the shortcom-ings of relevant research in our coastal areas,and prospects for future development directions.