微电极系统在海洋地球化学课程教学实践中的应用  

作　　者：刘宝林[1] 刘畅[1] 杨娟[1] 李琦[1] 

机构地区：[1]中国地质大学(北京),北京100083

出　　处：《高教学刊》2023年第22期106-109,113,共5页Journal of Higher Education

基　　金：教育部2021年第二批产学合作协同育人项目“海洋地质地层构造变形数值仿真模拟实验教学课程设计”(202102072009);中国地质大学(北京)2021年度本科教育质量提升计划建设项目“微电极系统在海洋地球化学课程实践教学中的应用及其思政教学作用研究”(JG202139)。

摘　　要：海洋地球化学是海洋地质学、海洋化学相结合的一门边缘交叉科学,主要研究海洋中化学物质的含量、分布、形态、转移和通量的学科。海洋地球化学课程教学中涉及海洋沉积物-水界面化学元素的分布、迁移等知识内容,往往因为空间分辨率要求高、内容抽象、不容易观测等问题,使课堂教学效果受到很大的影响。该文进行相关教学方法改革与探索,利用课程课堂教学与先进的微电极现场观测系统相结合,再加课后小组讨论、分析、总结等教学手段。实现对海洋沉积物-水界面进行实时高精度微米级的观测,使学生了解海洋沉积物-水界面位置处微米尺度的碳循环过程观测及其矿化降解通量的计算方法,强化学生对碳循环和碳减排等课程思政要素的了解,营造良好教学氛围,取得良好的教学效果。教学方法的探索表明将先进的科研仪器投入到本科教学中,可以极大地调动学生的学习积极性,保证课程教学的效果。Marine geochemistry is an interdisciplinary science between marine geology and chemistry,and mainly focuses on the study of the content,distribution,morphology,transfer,and flux of chemical substances in the ocean.In the teaching of Marine Geochemistry,there are some difficult problems related to the high space-resolution,abstract contents,and being hard to be observed in the interface between sediment and water.Based on the advanced micro-electrode system,the teaching method of the lesson is discussed in the paper.By the observation of high-precision on the sediment-water interface in a micrometer scale using micro-electrode system,students could better understand carbon cycle process on the sediment-water interface in detail and the related flux computation during organic carbon degradation and carbon cycle,combining with the discussion,analysis,and summary after the class.Meanwhile,the political and virtuous awareness education is intensified and good teaching results have been achieved in this teaching environment.Through the exploration of teaching methods,it is shown that putting advanced scientific research instruments into undergraduate teaching can greatly mobilize students'enthusiasm for learning and ensure the effect of course teaching.

关 键 词：海洋地球化学 微电极系统 碳循环 思政要素 教学效果 

分 类 号：G642[文化科学—高等教育学]