CAJ | 학술논문

运用微电极技术,模拟盐城大纵湖疏浚前后沉积物柱状样,分析疏浚前后沉积物-水界面约2 cm深度的pH、Eh和DO的剖面数值及变化规律,探讨底泥疏浚对控制浅水湖泊富营养化的作用.结果表明:采用传统方法和微电极技术测得的Eh和pH值结果相差很大,微电极技术在微尺度下更具有研究意义;疏浚前后沉积物的含氧层厚度分别为8 mm和13 mm;微尺度下疏浚前后pH、Eh和DO值的变化趋势显示疏浚有助于富营养化的控制.
운용미전겁기술,모의염성대종호소준전후침적물주상양,분석소준전후침적물-수계면약2 cm심도적pH、Eh화DO적부면수치급변화규률,탐토저니소준대공제천수호박부영양화적작용.결과표명:채용전통방법화미전겁기술측득적Eh화pH치결과상차흔대,미전겁기술재미척도하경구유연구의의;소준전후침적물적함양층후도분별위8 mm화13 mm;미척도하소준전후pH、Eh화DO치적변화추세현시소준유조우부영양화적공제.
@@@@Sediment cores from Dazong Lake in Yancheng City before and after dredging of the lake were simulated using microelectrode technology.The changes in pH, Eh, and DO in the profile of the upper 2-cm surface layer were studied before and after dredging , in order to investigate the effect of sediment dredging on the control of eutrophication in shallow lakes.The results show that there are significant differences in the values of Eh and pH measured by traditional methods and the microelectrode technology , which plays an important role in micro-scale research.The thickness of the oxygenated layer of sediment before and after dredging were 8 mm and 13 mm, respectively, and the changes in pH, Eh, and DO before and after dredging can help control the eutrophication in shallow lakes.