| 1. | Isotope ; global change ; tree ring ; lake sediment ; ice core 同位素全球变化树轮湖泊沉积物冰芯 |
| 2. | Magnetostratigraphic study of lake sediments in jiaochang , maoxian county , sichuan 四川茂县较场湖相沉积磁性地层初步研究 |
| 3. | Lake sediment anomaly 湖积物异常 |
| 4. | Isolation , purification , and phosphate - solubilizing capability of phosphorous bacteria in west lake sediment 西湖沉积物中解磷菌的分离纯化及其解磷能力 |
| 5. | This paper summarized the progress of studies on the environmental pollution of heavy metals in lake sediment 摘要综述了湖相沉积物重金属环境污染研究进展。 |
| 6. | Lake sediments record sensitivity of two hydrologically closed upland lakes in mexico to human impact 墨西哥两个水文封闭型高原湖泊沉积物记录到受人类活动影响的敏感度 |
| 7. | Lass on ignition ( loi ) is a simple , inexpensive method widely used to measure contents of organic and inorganic carbon in lake sediments 摘要烧失量分析是一种便捷的测定湖泊沉积物有机碳与碳酸盐含量的方法。 |
| 8. | Even at meridiani , basaltic sands lie atop the lake sediments , indicating that the site has been parched for two billion to three billion years 甚至在子午线地盘,玄武岩质的沙披覆在湖床沉积物上,显示此地已经乾涸了20 ~ 30亿年。 |
| 9. | Finally , it is suggested that quantitative research on mechanism of various environmental parameters recorded in the lake sediments should be enhanced in future 指出应大力加强湖泊沉积物各种环境代用指标的机理研究,逐步由定性研究向定量研究转变。 |
| 10. | It mainly discussed the research contents and the research methods in this field , and the evaluation methods of the environmental pollution of heavy metals in lake sediment 介绍了该领域研究的主要研究内容、主要研究方法和湖相沉积物重金属污染的评价方法。 |