高州水库沉积物中总氮与总磷的分布特征研究  

Temporal-Spatial Distribution of Total Nitrogen and Total Phosphorus in Sediments of Gaozhou Reservoir

作　　者：苟婷[1,2] 李思阳[2,3] 许振成[2] 魏东洋[2] 赵学敏[2] 

机构地区：[1]兰州交通大学,甘肃兰州730070 [2]环境保护部华南环境科学研究所,广东广州510655 [3]西安市环境保护科学研究院,陕西西安710061

出　　处：《环境科学与管理》2014年第7期31-35,共5页Environmental Science and Management

基　　金：国家科技重大专项(2014ZX07206-005);环保公益性行业科研专项经费(201109008)

摘　　要：为掌握高州水库沉积物中氮磷时空分布特征,于2010年至2012年对高州水库良德和石骨库区及入库河口沉积物TN、TP进行调查与分析,结果表明:高州水库沉积物中TN、TP污染严重且空间分布差异明显,TN含量变化范围为780 mg/kg^2 033 mg/kg,均值为1 392 mg/kg,TP含量变化范围为338 mg/kg^726 mg/kg,均值为492 mg/kg,TN、TP含量分布规律均呈现良德库区>石骨库区>入库河口,TN、TP垂向分布含量随沉积深度的增加而递减,呈现表层富集现象,TN、TP含量有逐年增加的趋势。To study the characteristic of temporal - spatial distribution of total nitrogen （TN） and total phosphorus （TP） insediments of Gaozhou Reservoir, many sediment samples are observed and analyzed from Liangde Reservoir, Shigu Reservoir andits major tributaries in the year of 2010 to 2012 ,The results shows that the content of TN and TP in sediments are higher and it dis-tributes differently in temporal - spatial space. The contents of TN and TP are in the range of 780 - 2033 mg/kg and 338 - 726mg/kg respectively. The mean value of TN and TP is 1392,492 mg/kg respectively. The characteristics of TN and TP content areboth presented l.iangde Reservoir area 〉 Shigu Reservoir area 〉 tributaries estuary. TN and TP content decrease with the inereasing of the sediment depth and enrich in the surface of sediment. TN and TP content present the tendency of increasing year by year

关 键 词：高州水库 沉积物 时空分布 总氮 总磷 

分 类 号：X524[环境科学与工程—环境工程]