鄱阳湖平原区农村门塘形态特征及底泥营养状况分析  

Analysis on Morphological Characteristics of Rural Ponds and Nutrient Status of Pond Sediment in Poyang Lake Plain

作　　者：刘方平 汪怀建[3] 苏甜 姜成名 时红 廖伟 才硕 LIU Fang-ping;WANG Huai-jian;SU Tian;JIANG Cheng-ming;SHI Hong;LIAO Wei;CAI Shuo(Jiangxi Centre Station of Irrigation Experiment,Nanchang,Jiangxi 330201,China;Jiangxi Provincial Key Laboratory of Agriculture High-efficiency Water-saving and Non-point Source Pollution Preventing and Controlling,Nanchang,Jiangxi 330201,China;Jiangxi Agricultural University,Nanchang,Jiangxi 330045,China)

机构地区：[1]江西省灌溉试验中心站,江西南昌330201 [2]江西省农业高效节水与面源污染防治重点实验室,江西南昌330201 [3]江西农业大学,江西南昌330045

出　　处：《环境监测管理与技术》2021年第6期35-39,47,共6页The Administration and Technique of Environmental Monitoring

基　　金：江西省重点研发计划基金资助项目(No.20171BBH80018);江西省水利科技基金资助项目(No.KT201737)。

摘　　要：通过在鄱阳湖平原选取典型农村门塘,对其形状、进出口布置、水下地形、水深、淤塞、水质和底泥营养盐含量等指标进行调查测定分析。结果表明,鄱阳湖平原农村门塘多呈长条形;进水口设置随意,多且分散;淤塞较为严重,淤积物主要以外源输入为主;水体总氮和总磷一定程度超标,污染程度总氮总体表现为冬季>秋季>夏季>春季,总磷总体表现为夏季>春季>秋季>冬季;底泥营养盐和有机质含量相对较高,呈现一定的污染状态;底泥中有机质、有机碳和总氮的同源性较高,主要以内源污染物为主;底泥中磷以陆源输入为主。By selecting typical rural ponds in Poyang Lake plain,their shape,inlet and outlet settings,underwater topography,water depth,siltation,water quality and nutrient content of sediment were investigated and analyzed.The results showed that most rural ponds in Poyang Lake plain were in strip shape.There were many water inlets which were set randomly and scattered.The siltation was serious and the sediment was mainly imported by external sources.Total nitrogen and total phosphorus in water exceeded the standard to a certain extent.The overall pollution degree of total nitrogen was winter>autumn>summer>spring,and total phosphorus was summer>spring>autumn>winter.The contents of nutrients and organic matter in sediment were relatively high,presenting a certain pollution state.Organic matter,organic carbon and total nitrogen in sediment had high homology.They were mainly endogenous pollutants.Phosphorus in sediment was mainly imported by terrestrial sources.

关 键 词：农村门塘 形态分析 底泥 营养盐 鄱阳湖平原 

分 类 号：X524[环境科学与工程—环境工程]