recent sediments 中文意思是什麼
recent sediments
解釋
新沉積物-
In this paper, the erosional characteristics along the suizhong sarldy coast of the liaodong bay are analyzed by comparing nautical charts in different periods and analyzing remote sensing images and multi - year field monitoring data, and it is shown from the analysis results that the loose coastal sediments and intense coastal dynamic actions are the basic conditions for the recent coastal erosion, and the decrease in terrigenous material discharged into the sea, marine dynamic actions, coastal engineering structures and offshore sand recovery are the main affecting factors for the coastal retrogradation
摘要通過不同時期海圖對比、分析遙感圖像和多年現場監測資料，分析了遼東灣綏中沙質海岸侵蝕的特點，認為海岸組成物質鬆散與海岸動力作用強烈是本區現代海岸侵蝕的基本條件；陸源物質入海量減少、海動力作用、沿岸工程建築和海上采砂是其海岸蝕退的主要影響因素。 -
According to data obtained in recent 15 years, pge abundances in the earth ' s crust, crustal rocks, and sediments are given in this paper
根據近15年來獲得的大量的有關鉑族元素含量的可靠數據，綜合給出了鉑族元素在地殼、巖石、土壤和沉積物中的豐度。 -
Abstract : mainly reviewed distribution of organic nitrogen, early diagenesis ( such as counteract - eutrophication, nitrification / denitrification et al. ), the controlling factors of nitrogen cycling ; and the relationship between nitrogen and ecological system in sediments in recent years, which may contribute to research the nitrogen marine biogeochemical process
文摘:主要闡述海洋沉積物中氮的存在形式與分佈、氮的早期成巖和去營養化作用、硝化和反硝化作用以及氮與生物特定種群的關系等，探討了影響海洋沉積物中的氮循環的主要因素，分析了海洋沉積物中的氮與生態系的關系，以期對研究氮的海洋生物地球化學過程有所幫助
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