The spatial differentiation and spatial correlation analysis with TC and TN of grain size in intertidal sediments
LIU Kun1, SUN Yong-guang2, QI Yue2, WANG Wei-wei2, YUAN Xiu-tang2, FU Yuan-bin2, LI Pei-ying3
1. SanshaCity Conservation Authority, Haikou 570100, China;
2. National Marine Environmental Monitoring Center, Dalian 116023, China;
3. The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
Abstract：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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