为探究升钟湖水和沉积物中磷污染情况,于2019年8月(夏季),采集了升钟湖湖区15个样点的水样和沉积物样品,测定了升钟湖表层水、间隙水及沉积物的磷形态,并分析各种形态磷之间的相关性。结果表明:①升钟湖表层水总磷含量介于0.033～0.085 mg/L,各形态的磷含量由高到低依次为DTP(61.93%)、DOP(40.00%)、PP(38.07%)和DIP(21.93%);②间隙水的总磷含量介于3.49～7.57 mg/L,是水体磷的“源”,正磷酸盐仅占总磷的1.9%;③沉积物总磷含量介于299.04～1 138.69 mg/kg,Psenner法连续分级提取出表层沉积物共有5种形态的磷,各形态磷含量由高到低依次为残渣磷(Res-P:44.78%)、金属氧化物结合态磷+有机碎屑腐殖酸磷(NaOH-P:22.92%)、钙结合态磷(HCl-P:14.82%)、可还原态磷(BD-P:13.39%)和弱吸附态磷(NH4Cl-P:4.09%),各形态磷含量均表现一定的空间分布差异,其中,总磷含量整体为西北部高于东南部;④相关性分析结果显示,沉积物中磷的释放主要通过BD-P、NaOH-P及NH4Cl-P进行,间隙水正磷酸盐(PO3-4-P)与水体各形态的磷之间均无显著的相关性(P>0.05),升钟湖沉积物磷在夏季时释放潜力较低。研究成果对于管理升钟湖的政策实施及其资源的可持续利用可提供参考。
Abstract
The aim of this research is to investigate the phosphorus pollution in the water and sediment of the Shengzhong Lake. We collected water and sediment samples from fifteen sampling sites in the summer (August) of 2019,measured the forms of phosphorus in surface water,interstitial water and sediment,and further analyzed the correlation among various forms of phosphorus. Results revealed that the total phosphorus content in the surface water of Shengzhong Lake ranged from 0.033 mg/L to 0.085 mg/L,and the content of phosphorus in different forms were DTP (61.93%),DOP (40.00%),PP (38.07%),and DIP (21.93%),respectively. The total phosphorus content of interstitial water ranged from 3.49 mg/L to 7.57 mg/L,which is the source of phosphorus in water;however,the orthophosphate accounted for only 1.9%. Total phosphorus content of sediment ranged from 299.04 mg/kg to 1138.69 mg/kg. Five forms of phosphorus in surface sediments were extracted by continuous classification of Psenner,of which Res-P accounted for 44.78% of the total phosphorus content of the surface sediment,followed by NaOH-P occupying 22.92%,and then HCl-P 14.82%,BD-P 13.39%,and NH4Cl-P 4.09% in sequence. The content of different forms of phosphorus varied in spatial scale. Generally,the total phosphorus content in the northwest of Shengzhong Lake was higher than that in the southeast. The results of correlation analysis showed that the release of phosphorus in sediments was mainly through BD-P,NaOH-P and NH4Cl-P. No significant correlation was found between orthophosphate in interstitial water and various forms of phosphorus in water body (P > 0.05),and the release potential of phosphorus in sediments was not large in summer.
关键词
水和沉积物 /
磷形态 /
连续分级提取法 /
相关性分析 /
升钟湖
Key words
water and sediment /
phosphorus form /
sequential extraction method /
correlation analysis /
Shengzhong Lake
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参考文献
[1] KAZEM D B,MAHMOUD R N,HADI R,et al.Bioavailability and Geochemical Speciation of Phosphorus in Surface Sediments of the Southern Caspian Sea[J].Marine Pollution Bulletin,2018,126:51-57.
[2] SMITH S V.Phosphorus versus Nitrogen Limitation in the Marine Environment[J].Limnol Oceanogr,1984,29(6):11491160.
[3] SPEARS B M,CARVALHO L,PERKINS R,et al.Sediment Phosphorus Cycling in a Large Shallow Lake:Spatio-temporal Variation in Phosphorus Pools and Release[J].Hydrobiologia,2007,584(1):37-48.
[4] MLYNARCZYK N,BARTOSZEK M,POLAK J,et al.Forms of Phosphorus in Sediments from the Goczałkowice Reservoir[J].Applied Geochemistry,2013,37:87-93.
[5] LI Z J,YUE Q Y,GAO B Y,et al.Phosphorus Release Potential and Pollution Characteristics of Sediment in Downstream Nansi Lake,China[J].Frontiers of Environmental Science and Engineering,2012,6(2):162-170.
[6] DONG L M,YANG Z F,LIU X H.Phosphorus Fractions,Sorption Characteristics,and Its Release in the Sediments of Baiyangdian Lake,China[J].Environmental Monitoring and Assessment,2011,179(1/2/3/4):335-345.
[7] 陈 洁,许 海,詹 旭,等.湖泊沉积物-水界面磷的迁移转化机制与定量研究方法[J].湖泊科学,2019,31(4):907-918.
[8] GOLTERMAN H L.Fractionation of Sediment Phosphate with Chelating Compounds:A Simplification,and Comparison with Other Methods[J].Hydrobiologia,1996,335(1):87-95.
[9] PENG J,WANG B,SONG Y,et al.Adsorption and Release of Phosphorus in the Surface Sediment of a Wastewater Stabilization Pond[J].Ecological Engineering,2007,31(2):92-97.
[10] ZHU Y R,FENG W Y,LIU S S,et al.Bioavailability and Preservation of Organic Phosphorus in Lake Sediments:Insights from Enzymatic Hydrolysis and 31p Nuclear Magnetic Resonance[J].Chemosphere,2018,211:50-61.
[11] LI Q M,ZHANG W,WANG X X,et al.Phosphorus in Interstitial Water Induced by Redox Potential in Sediment of Dianchi Lake,China[J].Pedosphere,2007,17(6):739-746.
[12] XIE L Q,XIE Q,TANG H J,et al.Enhancement of Dissolved Phosphorus Release from Sediment to Lake Water by Microcystis Blooms—An Enclosure Experiment in a Hyper-eutrophic,Subtropical Chinese Lake[J].Environmental Pollution,2003,122(3):391-399.
[13] 金相灿,庞 燕,王圣瑞,等.长江中下游浅水湖沉积物磷形态及其分布特征研究[J].农业环境科学学报,2008(1):279-285.
[14] 杨亦辰.富营养化湖泊热力分层规律和机理的研究[D].南京:南京信息工程大学,2018.
[15] 谢 平.浅水湖泊内源磷负荷季节变化的生物驱动机制[J].中国科学:D辑,2005(增刊2):11-23.
[16] 秦伯强,胡维平,高 光,等.太湖沉积物悬浮的动力机制及内源释放的概念性模式[J].科学通报,2003,48(17):1822-1831.
[17] 黄银春,梁时军,陈兰英.升钟水库近十年水质演变趋势及富营养化治理对策[J].四川环境,2019,38(4):42-50.
[18] 唐 颖,陈兰英,蒋祖斌,等.升钟湖水体叶绿素a动态特征及其影响因子分析[J].环境监测管理与技术,2020,32(1):56-59.
[19] 郑 坤.关于升钟水库旅游综合开发的分析[J].安徽农业科学,2018,46(2):90-93.
[20] 唐 洁.升钟水库水质监测评价及污染防治方案[D].绵阳:西南科技大学,2020.
[21] 杨 婷.南部县升钟湖区域特色乡村旅游发展研究[D].成都:四川农业大学,2014.
[22] 中国科学院南京地理与湖泊研究所.湖泊调查技术规程[M].北京:科学出版社,2015.
[23] 范成新.湖泊沉积物调查规范[M].北京:科学出版社,2018.
[24] 何 佳,陈春瑜,邓伟明,等.滇池水-沉积物界面磷形态分布及潜在释放特征[J].湖泊科学,2015,27(5):799-810.
[25] 吴强亮.沉水植物苦草对水环境中磷的影响[D].武汉:华中农业大学,2013.
[26] 胡 佳,李艳华.天然水体中磷的存在形态及其对鱼类影响研究进展[J].水产学杂志,2020,33(4):81-88.
[27] 王 芳,晏维金.长江输送颗粒态磷的生物可利用性及其环境地球化学意义[J].环境科学学报,2004,24(3):418-422.
[28] BABU K N,OUSEPH P P,PADMALAL D.Interstitial Water-Sediment Geochemistry of N,P and Fe and Its Response to Overlying Waters of Tropical Estuaries:A Case from the Southwest Coast of India[J].Environmental Geology,2000,39(6):633-640.
[29] 徐 清,刘晓端,王辉锋,等.密云水库沉积物内源磷负荷的研究[J].中国科学:D辑,2005,35(1):281-287.
[30] US EPA.Guidelines for the Pollutional Classification of Great Lakes Harbor Sediments[R].Chicago lllinois:US EPA,1977.
[31] 潘 雄,顾文俊,李 欢,等.洪湖沉积物碳氮磷分布特征及污染评价[J].raybet体育在线
院报,2021,38(8):41-46.
[32] 刘 鹄,孟 婷,程 文,等.汤浦水库沉积物碳、氮、磷的分布与评价[J].水土保持通报,2017,37(2):333-338.
[33] 毛雪静,黄廷林,李 楠,等.金盆水库沉积物磷的来源及分布特征[J].环境科学,2019,40(6):2738-2744.
[34] 秦丽欢,曾庆慧,李叙勇,等.密云水库沉积物磷形态分布特征[J].生态学杂志,2017,36(3):774-781.
[35] 邱祖凯,胡小贞,姚 程,等.山美水库沉积物氮磷和有机质污染特征及评价[J].环境科学,2016,37(4):1389-1396.
[36] 王雯雯,王书航,赵 丽,等.丹江口水库表层沉积物有机/无机磷形态特征[J].中国环境科学,2016,36(3):808-818.
[37] 江 雪,文帅龙,姚书春,等.天津于桥水库沉积物磷赋存特征及其环境意义[J].湖泊科学,2018,30(3):628-639.
[38] 汤显强,吴 敏.水位调控对河口沉积物磷赋存及生物可利用性的影响[J].raybet体育在线
院报,2015,32(12):8-13,17.
[39] 张 奇,喻庆国,王胜龙,等.滇西北剑湖沉积物磷形态、空间分布及释放贡献.环境科学学报[J] ,2017,37(10):3792-3803.
[40] JIN X C,WANG S R,BU Q Y.Laboratory Experiments on Phosphorous Release from the Sediments of 9 Lakes in the Middle and Lower Reaches of Yangtze River Region,China[J].Water,Air,and Soil Pollution,2006,176(1/2/3/4):233-251.
[41] 李 乐,王圣瑞,焦立新,等.滇池柱状沉积物磷形态垂向变化及对释放的贡献[J].环境科学,2016,37(9):3384-3393.
[42] ANDRIEUX L F,AMINOT A.Phosphorus Forms Related to Sediment Grain Size and Geochemical Characteristics in Frenchcoastal Areas[J].Estuarine,Coastal and Shelf Science,2001,52(5):617-629.
[43] KRAAL P,SLOMP C P,REED D C,et al.Sedimentary Phosphorus and Iron Cycling in and below the Oxygen Minimum Zone of the Northern Arabian Sea[J].Biogeosciences,2012,9(7):2603-2624.
[44] 霍守亮,李青芹,昝逢宇,等.我国不同营养状态湖泊沉积物有机磷形态分级特征研究[J].环境科学,2011,32(4):1000-1007.
[45] 程段莹,梁美娜,王敦球,等.睦洞湖沉积物中不同形态磷的分布特征[J].湿地科学,2018,16(6):783-792.
[46] GAO L,ZHOU J M,YANG H,et al.Phosphorus Fractions in Sediment Profiles and Their Potential Contributions to Eutrophication in Dianchi Lake[J].Environmental Earth Sciences,2006,49(5):792-792.
[47] 汤宝靖,陈 雷,姜 霞,等.巢湖沉积物磷的形态及其与间隙水磷的关系[J].农业环境科学学报,2009,28(9):1867-1873.
基金
国家自然科学基金项目(41807458);成都市水生态文明建设研究重点项目(SST2019-2020-06)
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