太湖流域典型平原圩区磷输移机制分析  

Analysis of phosphorus transport mechanism area in Lake Taihu Basin

作　　者：张京 张鹏 黄海田 颜红勤 王晓杰[6] ZHANG Jing;ZHANG Peng;HUANG Haitian;YAN Hongqin;WANG Xiaojie(Key Laboratory of Watershed Geographic Sciences,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China;University of Chinese Academy of Sciences,Beijing 100049,China;Jiangsu Water Conservancy Project Planning Office,Nanjing 210029,China;Jiangsu Society for Hydropower Engineering(JSHE),Nanjing 210098,China;Jiangsu Province Water Engineering Sci-tech Consulting Co.,Ltd.,Nanjing 210029,China;Changzhou Branch of Jiangsu Province Hydrology and Water Resources Investigation Bureau,Changzhou 213022,China)

机构地区：[1]中国科学院南京地理与湖泊研究所中国科学院流域地理学重点实验室,江苏南京210008 [2]中国科学院大学,北京100049 [3]江苏省水利工程规划办公室,江苏南京210029 [4]江苏省水力发电工程学会,江苏南京210098 [5]江苏省水利工程科技咨询股份有限公司,江苏南京210029 [6]江苏省水文水资源勘测局常州分局,江苏常州213022

出　　处：《江苏水利》2023年第9期28-32,共5页Jiangsu Water Resources

基　　金：江苏水利科技项目(2021036、2020032)。

摘　　要：以太湖流域典型平原圩区为研究对象,分析了圩区磷流失的季节变化及主要影响因子,研究结果表明:圩区总磷质量浓度变化范围为0.039~0.306 mg/L,全年大部分时间低于Ⅲ类水标准;丰水期磷流失比平水期和枯水期严重;春季水体磷质量浓度降低,夏季开始升高,秋季达到最高,冬季缓慢下降。利用Person相关分析得出总磷、颗粒态磷及溶解态磷与温度显著正相关,颗粒态磷在总磷中占比与湿度及降水显著正相关,溶解态磷在总磷中占比与湿度及降水显著负相关。该研究助于水管理者识别磷流失机制,从而采取科学措施控制水体富营养化。Taking the typical plain polder area of Taihu Basin as the research object,the seasonal variation and main influencing factors of phosphorus loss in polder area were analyzed.The results showed the total phosphorus(TP)concentration of polder varied from 0.039 to 0.306 mg/L,lower than the nationalⅢclass water standard in most time of a year.The phosphorus loss was more serious in wet season than in normal season and dry season.Moreover,the phosphorus concentration decreased in spring,began to increase in summer,reached the peak in autumn,and declined gradually in winter.The Person correlation analysis showed that total phosphorus,granular phosphorus and dissolved phosphorus were significantly positively correlated with temperature;the proportion of granular phosphorus in total phosphorus was significantly positively correlated with humidity and precipitation;the proportion of dissolved phosphorus in total phosphorus was significantly negatively correlated with humidity and precipitation.This study helps water managers identify the mechanism of phosphorus loss and take scientific measures to control eutrophication in water bodies.

关 键 词：磷 季节变化 影响因子 圩区 太湖流域 

分 类 号：TV87[水利工程—水利水电工程]