黄河高村至利津河段水体和沉积物中不同形态磷的分布特征
发布时间：2018-08-20 13:06
【摘要】：黄河是我国第二大河流,其对营养盐的输送在区域乃至全球范围内扮演着很重要的角色.本研究对黄河高村至利津河段5个站点两季水体和沉积物中不同形态磷的分布特征进行了研究.结果表明,黄河高村至利津河段水体5月处于磷污染状态,5月水体总磷(TP)变化范围为0.05~2.31 mg·L~(-1),9月为0.03~0.1 mg·L~(-1),颗粒态磷(PP)为主要赋存形态,TP与PP呈极显著相关(P0.01),径流量和水体TP与PP显著正相关(P0.05),总溶解性磷(TDP)与溶解性无机磷(DIP)显著负相关(P0.05,P0.01),流量增加对TDP和DIP的稀释作用很明显,但黄河高村至利津河段土壤磷流失仍然很严重.水体悬浮颗粒物(SPM)质量浓度与DIP显著负相关(P0.01),SPM对水体DIP的吸附作用明显;秋季水体高锰酸盐指数较春季高,受有机物污染更严重,水体高锰酸盐指数与DIP质量浓度显著正相关(P0.01).黄河高村至利津河段沉积物两季总磷的含量基本处于未污染水平,沉积物TP 5月变化范围为284.23~569.58 mg·kg~(-1),9月为287.97~355.39 mg·kg~(-1),钙磷(CaP)为无机磷(IP)的主要赋存形态.活性有机磷(L-OP)含量与径流量,水体SPM质量浓度和高锰酸盐指数显著相关(P0.01,P0.05,P0.01),5月利津站点的有机磷(OP)含量明显较高,可能是降雨冲刷流域内矿物开采区导致的,黄河高村至利津河段能源基地生产活动需要密切关注.
[Abstract]:The Yellow River is the second largest river in China, which plays an important role in the transport of nutrients. The distribution characteristics of different phosphorus forms in water and sediment of five stations from Gaocun to Lijin reach of the Yellow River were studied in this paper. The results show that The total phosphorus (TP) of the Yellow River reach from Gaocun to Lijin was in the state of phosphorus pollution in May. The range of total phosphorus (TP) in May and September was 0.05N 2.31 mg / L ~ (-1) and 0.03 ~ 0. 1 mg / L ~ (-1), respectively. There was a significant correlation between TP and PP (P0.01), and the runoff and TP of water were significantly correlated with PP (P0.01). There was a significant negative correlation between total dissolved phosphorus (TDP) and dissolved inorganic phosphorus (DIP) (P0.05, P0.01). The dilution effect of TDP and DIP was obvious when the flow rate increased. But the soil phosphorus loss is still very serious from Gaocun to Lijin reach of the Yellow River. There was a significant negative correlation between the (SPM) concentration of suspended particulates and DIP (P0.01), and the adsorption of DIP in water in autumn was higher than that in spring, and it was more polluted by organic matter, and the water permanganate index was positively correlated with DIP concentration (P0.01). The total phosphorus content in the sediments from Gaocun to Lijin reaches of the Yellow River is basically unpolluted. The variation range of TP in sediment in May is 284.23 ~ 569.58 mg kg-1, and in September it is 287.97 ~ 355.39 mg kg-1. Calcium and phosphorus (CaP) is the main occurrence form of inorganic phosphorus (IP). The content of active organic phosphorus (L-OP) was significantly correlated with runoff, water SPM concentration and permanganate index (P0.01). In May, the content of (OP) in Lijin station was significantly higher, which may be caused by rainfall erosion of mineral mining areas in the basin. The production activities of energy base from Gaocun Yellow River to Lijin River need close attention.
【作者单位】： 北京林业大学环境科学与工程学院;
【基金】：国家自然科学基金项目(51279004) 人事部留学基金委择优资助项目(优秀项目类)
【分类号】：X522
本文编号：2193705
[Abstract]:The Yellow River is the second largest river in China, which plays an important role in the transport of nutrients. The distribution characteristics of different phosphorus forms in water and sediment of five stations from Gaocun to Lijin reach of the Yellow River were studied in this paper. The results show that The total phosphorus (TP) of the Yellow River reach from Gaocun to Lijin was in the state of phosphorus pollution in May. The range of total phosphorus (TP) in May and September was 0.05N 2.31 mg / L ~ (-1) and 0.03 ~ 0. 1 mg / L ~ (-1), respectively. There was a significant correlation between TP and PP (P0.01), and the runoff and TP of water were significantly correlated with PP (P0.01). There was a significant negative correlation between total dissolved phosphorus (TDP) and dissolved inorganic phosphorus (DIP) (P0.05, P0.01). The dilution effect of TDP and DIP was obvious when the flow rate increased. But the soil phosphorus loss is still very serious from Gaocun to Lijin reach of the Yellow River. There was a significant negative correlation between the (SPM) concentration of suspended particulates and DIP (P0.01), and the adsorption of DIP in water in autumn was higher than that in spring, and it was more polluted by organic matter, and the water permanganate index was positively correlated with DIP concentration (P0.01). The total phosphorus content in the sediments from Gaocun to Lijin reaches of the Yellow River is basically unpolluted. The variation range of TP in sediment in May is 284.23 ~ 569.58 mg kg-1, and in September it is 287.97 ~ 355.39 mg kg-1. Calcium and phosphorus (CaP) is the main occurrence form of inorganic phosphorus (IP). The content of active organic phosphorus (L-OP) was significantly correlated with runoff, water SPM concentration and permanganate index (P0.01). In May, the content of (OP) in Lijin station was significantly higher, which may be caused by rainfall erosion of mineral mining areas in the basin. The production activities of energy base from Gaocun Yellow River to Lijin River need close attention.
【作者单位】： 北京林业大学环境科学与工程学院;
【基金】：国家自然科学基金项目(51279004) 人事部留学基金委择优资助项目(优秀项目类)
【分类号】：X522
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