文章摘要
杨旭,李畅游,李文宝,赵胜男,郝世祺.达里诺尔湖磷赋存特征及底泥释放影响因素[J].水土保持通报,2018,38(4):92~97,102
达里诺尔湖磷赋存特征及底泥释放影响因素
Characteristics of Phosphorus Occurrence and Influence Factors of Sediment Release in Dali-Nor Lake
投稿时间:2018-03-05  修订日期:2018-03-31
DOI:10.13961/j.cnki.stbctb.2018.04.015
中文关键词: 水资源保护  湖泊磷赋存特征  因子分析法  达里诺尔湖
英文关键词: water resources protection  lake phosphorus occurrence characteristics  factor analysis  Dali-Nor Lake
基金项目:国家自然科学基金项目“冻融过程中湖泊污染物多介质迁移转化规律及机制研究”(51339002),“达里诺尔湖沉积物中正构烷烃类型演变及其对水环境变化的响应”(51469025),“冻融过程中污染物在湖泊冰水双介质体系迁移作用及机理研究”(51669022);内蒙古自治区自然科学基金项目“现代沉积过程中内蒙古寒旱区达里诺尔湖氮、磷等营养元素季节迁移特征”(2016MS0552);中国博士后科学基金(2014M562495XB)
作者单位E-mail
杨旭 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特, 010018  
李畅游 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特, 010018 nndlichangyou@163.com 
李文宝 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特, 010018  
赵胜男 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特, 010018  
郝世祺 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特, 010018  
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中文摘要:
      [目的]揭示封闭性内陆湖磷组成特点及底泥释放影响因素,为控制达里湖磷元素污染提供理论支持。[方法]对达里诺尔湖水体总磷(TP)、溶解性总磷(DTP)、溶解性无机磷(DIP),沉积物形态磷进行监测,并利用因子分析的方法对影响沉积物底泥释放的因素分类讨论。[结果]达里湖上覆水总磷(TP)均值2.00±0.02 mg/L,间隙水TP均值2.50±0.02 mg/L,沉积物TP在206.09~940.49 mg/kg之间。沉积物中无机磷(IP)占TP的47.9%,是沉积物主要的磷形态之一。钙磷(Ca-P)是IP中含量最多的形态磷(217.76±47.01 mg/kg),其次为铁铝结合态磷(Fe/Al-P,62.73±28.34 mg/kg)和交换态磷(Ex-P,36.50±19.13 mg/kg),有机磷(OP,200.28±135.13 mg/kg)含量占TP的41.8%;通过因子分析法将影响底泥释放的因素分为三类:沉积物TP,Ca-P,Fe/Al-P和生物有效性磷含量归为沉积物磷因子;水体pH,DO,Eh值以及间隙水磷含量归为界面影响因子;湖水水深归为湖泊自身特征因子。[结论]达里湖存在沉积物磷底泥释放的风险,根据因子分析的结果可知,影响沉积物底泥释放的因素分为沉积物磷、水—沉积物界面理化指标和湖水水深3大类。
英文摘要:
      [Objective] In order to reveal the characteristics of phosphorus composition in closed inland lake,and the influencing factors of endogenous release.[Methods] The phosphorus content in different medium of Dali-Nor Lake was determined. Using factor analysis to classify the factors affecting sediment release.[Results] The average value of total phosphorus (TP) in the water on Dali-Nor Lake was 2.00±0.02 mg/L, and the mean value of interstitial water TP was 2.50±0.02 mg/L. The sediment TP is between 206.09 to 940.49 mg/kg. Inorganic phosphorus (IP) in sediments accounts for 47.9% of TP, which is one of the main forms of phosphorus in sediments. Followed by iron-aluminum bound phosphorus (Fe/Al-P, 62.73±28.34 mg/kg) and exchangeable phosphorus (Ex-P, 36.50±19.13 mg/kg) By using the factor analysis method to analyze the influence of 13 sediments release indicators, there are 4 main factors, the 13 indexes are divided into 3 categories:TP, Ca-P, Fe/Al-P and bioavailability of phosphorus content in sediments classified as phosphorus in sediments and interstitial water factor; phosphorus concentrations of pH, DO, Eh of the water as the interface influence factor; The third is water depth to lakes characteristic factor.[Conclusion] There is a risk of release of sediment phosphorus sediment in Dali-Nor Lake. According to the results of factor analysis, the factors affecting sediment release are divided into three categories:sediment phosphorus, water-sediment interface physical and chemical indicators and lake water depth.
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