| 青海共和盆地降尘观测与137Cs测定的初步结果 |
| 摘要点击 1226 全文点击 1437 投稿时间：2000-05-30 |
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| 中文关键词 降尘 137Cs法 沉积速率 共和盆地 |
| 英文关键词 dust deposition 137Cs technique deposition rate Gonghe Basin |
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| 中文摘要 |
| 通过对1998～1999年共和盆地的降尘观测和尘样的137Cs分析,测定了降尘速率及其月分配;对尘源进行了137Cs示踪,并从理论上估算出降尘产生的137Cs再分配,对沉积速率的计算模型进行了讨论.作为采用137Cs法研究沙尘暴降尘的一次尝试,这些初步结果对沙尘暴测定及其强度评估等方面研究有一定的借鉴作用. |
| 英文摘要 |
| Through the dust observation at three sites in the Gonghe Basin, Qinghai Province, China and 137Cs analysis of dust samples, the 137Cs technique is firstly used to study the dust deposition by storm. The rate of dust deposition and its monthly distribution were determined and the dust source traced by 137Cs. It is apparent that the 137Cs model for accumulation rate must be modified because of the 137Cs redistribution from dust gain. These tentative results may be have some significant implications for further dust storm research. |
