2019年-2023年惠安县近岸海域营养盐时空分布研究

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文章编号：1674-6139（2026）02-0092-06

中图分类号：X52文献标志码：B

Spatial and Temporal Distribution of Nutrients in Coastal Waters of Huian County During 2O19-2023

Li Guangyi

（1.KeyLaboratory of Marine ecological monitoringand restoration technologies，Ministry of Nature Resources， Shanghai 201206，China； 2.Xiamen Ocean Center，Ministry of Natural Resources，Xiamen 361oo8，China; 3.Quanzhou Marine Environmental Monitoring and Forecasting Center，Quanzhou 362131，China）

Abstract：BasedonthemonitoringdataofthecoastalwatersofHui'anCountyfromO19to2O23，thespatialandtemporaldistribu tioncharacteriticsofutrientserestudiedTheresultsshowedthatthenutrientstatusofoastalwatersinHu'anCountyasgeealy good，therewasosigificantdifreceinutrntsaltoncerationbetndifeentears，andalloftereboetescond classwaterqualitysandardIntesofasons，eoverallpeformancewashighinwinterandutun，lowinspringandsumend the seasonal variation trend of DIN and PO4-P was consistent.Spatially，there was no significant difference in nutrient concentrations amongO the stations，which were all above the second class water quality standard. NO3-N was the most important component of DIN， but the proportion of NO2-N and NH4-N increases significantly in spring and summer.In summer，Prestriction was more obvious.Eutrophicationlevel was low，with mild eutrophicationlevel only in someseasons.Water temperature，salinity， pH and suspended solids were the main factors affecting nutrient distribution.

Key words：Hui'an County coastal waters；nutrient；spatial and temporal distribution

前言

海水中的营养盐是海洋浮游植物生长繁殖所必需的成分，是海洋生态系统物质循环与能量流动的物质基础[1]。（剩余6068字）