【摘要】 本文对长山群岛海域三个沉积剖面氮、磷含量数据进行ｔ和ｘ￣２检验，计算出本海域沉积物二要素的背景含量，其中氮为０．０４４±２×０．００９（１０￣（－２）），磷为３９３±２×２８（１０￣（－２））。大部分区域表层沉积物二要素平均含量低于其相应的背景含量，表明长山群岛海域增养殖环境良好。更多还原

【Abstract】 Abstract In this paper,the backgrounds of N,P in the sedimental sections in Changshan archipelagoarea are calculated by T and X￣2tests of the concentration data of N,P in three sedimental sectionsin the area. They are 0.044±2×0.009(10￣(-2)) and 393±2× 28(10￣(-6))of N,P respectively. Theresults show that the cultivation environment of the sea area is good,because the averageconcentrations of N,P in the most surface sediment are less than their background concentrationrespectively.更多还原