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| 地表水泥沙与总磷测定值的相关性分析 |
| Analysisfor Correlation between Bedload and TotalPhosphorus Determ ination |
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| DOI： |
| 中文关键词: 地表水 泥沙 总磷 相关性 三峡库区 |
| 英文关键词: Surfacewater Bedload Totalphosphorus Correlation TheThree Gorgesreservoir |
| 基金项目:国家重点项目“九七三”基金资助项目 (2003cb415205) |
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| 摘要点击次数: 1847 |
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| 中文摘要: |
| 为研究总磷与泥沙之间的质量浓度关系, 采集了三峡库区7个断面的地表水样品, 通过筛分、滤膜过滤等方式, 分离了水样中不同粒径的泥沙, 得到含不同泥沙质量浓度的水样, 并同步分析了水样中泥沙和总磷的质量浓度。结果表明, 在丰水期, 总磷主要来源于泥沙中吸附的有机磷和无机磷, 而溶解态磷较少。泥沙与总磷质量浓度可以用线性关系和对数关系模拟, 泥沙是影响地表水中总磷测定结果的主要原因之一。 |
| 英文摘要: |
| Surfacewatersampleswere collected from 7 sectionsin theThree Gorgesreservoir, and m easuredtheconcentration ofbedload and totalphosphorusfrom the analyticalwatersamples were obtained which contain differentparticlesizesandseparated with sievesand filterstostudy concentration relation between bed load andtotalphosphorus. The resultindicated tha,t in the abundantwatertime, thetotalphosphorus mainly com esfrom organicandinorganicphosphoruswhich adsorbsinthebedload, and dissolution phosphorusarejusta little. Thesimulation both ofthe concentrationlinearrelation andthe concentrationlogarithm relation between bedload andtotalphosphorusindicatedthatbedloadisoneoftheimportantfactorstointerferedeterm inationofto talphosphorusinthesurface water. |
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