| 大亚湾养殖海区沉积物中营养盐的解吸-吸附 |
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| 引用本文： | 丘耀文,王肇鼎,高红莲.大亚湾养殖海区沉积物中营养盐的解吸-吸附[J].热带海洋学报,2000,19(1). |
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| 作者姓名： | 丘耀文 王肇鼎 高红莲 |
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| 作者单位： | 中国科学院南海海洋研究所,广东,广州,510301 |
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| 基金项目： | 中国科学院大亚湾海洋生物综合实验站基金资助项目!(S960 9)，国家自然科学基金重大项目资助!( 3 9791 1 0 0 3 ) |
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| 摘 要： | 研究了天然海水体系大亚湾养殖海区表层沉积物营养盐的解吸 -吸附规律。结果表明 :沉积物中磷酸盐和硅酸盐解吸 2h基本达到平衡 ,而铵盐、硝酸盐和亚硝酸盐 0 5h内基本达到平衡 ;各营养盐的解吸随pH值 (小于 8)降低而增大 ,随pH值 (大于 8)升高略有增加 ;盐度仅在低于 1 0时对各营养盐的解吸有影响。研究了磷酸盐在沉积物上的吸附等温线。
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| 关 键 词： | 解吸 吸附 等温线 营养盐 沉积物 |
DESORPTION-ADSORPTION OF NUTRIENTS IN SEDIMENTS OF CULTURAL SEA AREA AT DAYA BAY |
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| QIU Yao-wen,WANG Zhao-ding,GAO Hong-lian.DESORPTION-ADSORPTION OF NUTRIENTS IN SEDIMENTS OF CULTURAL SEA AREA AT DAYA BAY[J].Journal of Tropical Oceanography,2000,19(1). |
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| Authors: | QIU Yao-wen WANG Zhao-ding GAO Hong-lian |
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| Abstract: | The desorption adsorption law of nutrients in the surface sediments of cultural sea area at the Daya Bay was studied.The results showed that the desorptions of phosphate and silicate from the sediments basically reached equilibrium in 2 hours and those of ammonium,nitrate and nitrite in 0 5 hour.The desorptions of nutrients increased as pH value (<8)decreased,and slightly increased as pH value(>8)increased.Salinity could affect desorption only when below 10.The absorption isotherm of phosphate to sediment was analyzed. |
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| Keywords: | desorption adsorption isotherm nutrient sediment |
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