【摘 要】
：
以辽河口潮间带典型区域作为研究对象,借助现场调查、实验分析、地统计分析和数理统计分析方法,分析了沉积物粒度组成、特征与沉积物营养元素的空间分异之间的相关关系,结果
【机 构】
：
三沙市海洋保护区管理局,海南海口,570100;国家海洋环境监测中心,辽宁大连,116023;国家海洋局第一海洋研究所,山东青岛,266061
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以辽河口潮间带典型区域作为研究对象,借助现场调查、实验分析、地统计分析和数理统计分析方法,分析了沉积物粒度组成、特征与沉积物营养元素的空间分异之间的相关关系,结果表明:沉积物粒度组成、特征参数在空间分布上呈现由陆向海的梯度变化趋势;沉积物TC和TN在空间分布上与沉积物粒度组成及分选特征具有较强的相关性;发现沉积物粒度参数能够对营养元素进行有效的指示,黏土物质对TC指示作用要强于TN,而分选系数对TN的指示作用要强于TC.本文研究证实了沉积物对环境要素的指示作用,同时也验证了在区域小尺度沉积物对营养元素空间分布的影响.“,”The field investigation,laboratory analysis,statistical analysis and statistical analysis method were used to analyze the sediment grain size composition,spatial characteristics,and the correlations between sediment grain size and nutrients factorsin Liaohe Estuary.The results showed that:the sediment grain size composition,characteristic parameters presented the gradient trends in spatial distribution from ocean to land;The more strong correlation was found between TC、TN and the composition and sorting features of sediment grain size in the spatial distribution,and the effective instruction of sediment grain size parameters for TC、TN could been found,the effect of clay material on the TC was better than TN,and the indicating role of sorting coefficient for TN was stronger than the TC.This paper confirmed the indicating role of sediments grain size on environmental factors,but also verified the impact of spatial distribution of grain size on nutrientsin the small-scale area.
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