阳宗海湖滨湿地沉积物磷形态及影响因子
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摘要
以云南阳宗海南岸湖滨湿地表层沉积物磷形态为研究对象,分析沉积物磷形态含量(磷酸二钙型Ca_2-P、磷酸八钙型Ca_8-P、磷酸铝盐Al-P、磷酸铁盐Fe-P、闭蓄态磷酸盐O-P、磷石灰型Ca_(10)-P)随时间推移的变化特征,探究13项环境因子与磷形态之间的关系,用线性回归分析方法分析环境因子对磷形态的影响.结果表明:湖滨湿地沉积物6种磷形态在分布上无明显季节性规律且各磷形态含量呈湖岸至湖心递减趋势,以Ca_(10)-P含量为主(占全磷的85%),环境因子沉积物全磷、沉积物总砷、沉积物pH、溶解氧、电导率对磷形态影响较大;线性回归分析能较好地预测惰性磷的时空分布规律(平均相对误差为14.77%),而活性磷相对误差较大,达到28%,可能与环境因子变化对活性磷分布影响显著有关.
Sediments and lake water were sampled from Yangzonghai lakeside wetland every 3 months from July 2015 to April 2016. The contents of 6 types of phosphorus(P) compounds(Ca_2-P, Ca_8-P, Al-P, Fe-P, O-P, Ca_(10)-P) were measured. The relationship between 13 environmental factors and P speciation was interpreted using linear regression analysis. Results showed that Ca_(10)-P was the main P form in the sediments, occupying 85% of total P. There was no obvious pattern for P speciation. The contents of all P fractions generally decreased from lakeshore to lake center. Among all environmental factors, total P and total arsenic in the sediments, sediment pH, dissolved oxygen, and electrical conductivity had relatively high influence on P speciation. The accuracy of predicted inert P content based on linear regression analysis was relatively high, with average relative error being 14.77%. While the relative error for active P was high, reaching 28%, which was very likely to be attributed to its susceptibility to environmental factors.
Sediments and lake water were sampled from Yangzonghai lakeside wetland every 3 months from July 2015 to April 2016. The contents of 6 types of phosphorus(P) compounds(Ca_2-P, Ca_8-P, Al-P, Fe-P, O-P, Ca_(10)-P) were measured. The relationship between 13 environmental factors and P speciation was interpreted using linear regression analysis. Results showed that Ca_(10)-P was the main P form in the sediments, occupying 85% of total P. There was no obvious pattern for P speciation. The contents of all P fractions generally decreased from lakeshore to lake center. Among all environmental factors, total P and total arsenic in the sediments, sediment pH, dissolved oxygen, and electrical conductivity had relatively high influence on P speciation. The accuracy of predicted inert P content based on linear regression analysis was relatively high, with average relative error being 14.77%. While the relative error for active P was high, reaching 28%, which was very likely to be attributed to its susceptibility to environmental factors.
引文
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[35] ROSE T J, HARDIPUTRA B, RENGEL Z. Wheat, canola and grain legume access to soil phosphorus fractions differs in soils with contrasting phosphorus dynamics[J]. Plant & Soil, 2010,326(1):159-170.
[36] 李智圆,杨常亮,李世玉,等.砷污染治理后阳宗海沉积物砷的分布与稳定性[J].环境科学与技术,2015,38(2):41-47.
[37] 吴萍萍.不同类型矿物和土壤对砷的吸附——解吸研究[D].北京:中国农业科学院,2011.
[38] TUUTIJARVI T, REPO E, VAHALA R, et al. Effect of competing anions on arsenate adsorption onto maghemite nanoparticles[J].中国化学工程学报(英文版),2012,20(3):505-514.
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[40] 张培志,冯旭文,钱江初.有机质对S1nm锰矿相金属阳离子交换能力的影响[J].海洋学报,2002,24(5):134-140.
[41] 黄廷林,周瑞媛,夏超,等.氧化还原电位及微生物对水库底泥释磷的影响[J].环境化学,2014(6):930-936.
[42] 赵斌,卢少勇,罗杨阳,等.洱海缓冲带典型入湖溪流沉积物磷形态的分布特征[J].水土保持通报,2016,36(3):94-97.
[43] 徐洋,陈敬安,王敬富,等.氧化还原条件对红枫湖沉积物磷释放影响的微尺度分析[J].湖泊科学,2016,28(1):68-74.
[2] SANCLEMENTS M D, FERNANDEZ I J, NORTON S A. Soil and sediment phosphorus fractions in a forested watershed at Acadia National Park, ME, USA[J]. Forest Ecology & Management, 2009,258(10):2 318-2 325.
[3] 张亮.湖滨带湿地截磷研究进展及问题讨论[J].长江流域资源与环境,2012,21(7):875-878.
[4] 李玲玉.鄱阳湖湿地沉水植物群落与水体、底泥营养化及重金属污染的关系[D].南昌:江西师范大学,2015.
[5] JIN X C, WANG S R, YAN P, et al. Phosphorus fractions and the effect of pH on the phosphorus release of the sediments from different trophic areas in Taihu Lake, China[J]. Environmental Pollution, 2006,139(2):288-295.
[6] 张小勇,杨茜,孙耀,等.黄东海陆架区沉积物中磷的形态分布及生物可利用性[J].生态学报,2013,33(11):3 509-3 519.
[7] YI Q T, SUN P F, NIU S P, et al. Potential for sediment phosphorus release in coal mine subsidence lakes in China: perspectives from fractionation of phosphorous, iron and aluminum[J]. Biogeochemistry, 2015,126(3):315-327.
[8] 赵忠红,张乃明,扈学文,等.云南阳宗海表层沉积物有机质组成结构对磷赋存形态特征的影响[J].湖泊科学,2017,29(2):308-316.
[9] 杜诗云,杨常亮,李世玉,等.阳宗海沉积物中磷的稳定性[J].环境工程学报,2015,9(3):1 072-1 078.
[10] 张玉玺,刘景涛,王金翠.阳宗海沉积物中磷的分布及其影响因素[J].安全与环境工程,2013,20(6):43-48.
[11] 周帆琦,沙茜,张维昊,等.武汉东湖和南湖沉积物中磷形态分布特征与相关分析[J].湖泊科学,2014,26(3):401-409.
[12] 颜剑波,阮晓红,孙瀚.多元回归分析在黄河水质预测中的应用[J].人民黄河,2010,32(3):35-36.
[13] 向速林.基于回归分析的地下水水质预测研究[J].东华理工大学学报(自然科学版),2007,30(2):161-163.
[14] 国家环保总局.地表水环境质量标准GB 3838—2002[S].北京:中国环境科学出版社,2002.
[15] 赵金兰,张树莲,祁建峰.硫酸—高氯酸—钼锑抗比色法测定土壤全磷的注意事项[J].现代农业科技,2009,37(21):234-234.
[16] 鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000:175-213.
[17] 郑锦辉.土壤中总汞与总砷的检测方法综述[J].广东化工,2013,40(10):137-138.
[18] 李海玲.土壤pH值的测定——电位法[J].农业科技与信息,2011(13):47-48.
[19] 阳辉.潇河表层沉积物中氮素分布特征及其污染评价[J].人民黄河,2014,36(12):88-90.
[20] 国家环境保护局.水质总磷的测定—钼酸铵分光光度法:GB 11893—89[S].北京:中国标准出版社,1989.
[21] 申禹,李玲.钼酸铵分光光度法测定磷浓度实验方法的改进[J].实验技术与管理,2013,30(1):56-59.
[22] 马迎群,时瑶,秦延文,等.浑河上游(清原段)水环境中重金属时空分布及污染评价[J].环境科学,2014,35(1):108-116.
[23] CHEN L P, ZHANG Y, LIU Q G, et al. Spatial variations of macrozoobenthos and sediment nutrients in Lake Yangcheng: Emphasis on effect of pen culture of Chinese mitten crab[J]. Journal of Environmental Sciences, 2015,37(11):118-129.
[24] 王书锦,刘云根,王妍,等.洱海入湖河口湿地干湿季沉积物氮、磷、有机质垂向分布特征及污染风险差异性[J].环境科学,2016(12):4 615-4 625.
[25] 刘振宇,唐洪武,肖洋,等.淮河沉积物总磷和重金属沿程变化及污染评价[J].河海大学学报(自然科学版),2018,46(1):16-22.
[26] 刘震,金相灿,卢少勇,等.滇池湖滨带沉积物磷的空间分布[J].环境科学与技术,2009,32(8):7-11.
[27] 尹延震,王苗,郑钊.洱海湖滨带底泥全氮、全磷及有机质空间分布特征研究[J].环境科学与管理,2014,39(7):353-360.
[28] 李卫东,刘云根,田昆,等.滇西北高原剑湖茭草湿地湖滨带对农业面源N·P污染净化效果研究[J].安徽农业科学,2010,38(32):18 294-18 296.
[29] 王莹,胡维平.太湖湖滨湿地沉积物营养元素分布特征及其环境意义[J].中国环境科学,2015,35(1):204-210.
[30] 蒋柏藩,顾益初.石灰性土壤无机磷分级体系的研究[J].中国农业科学,1989,22(3):58-66.
[31] 詹乃才,刘云根,王妍,等.滇东南典型岩溶湿地沉积物不同形态磷分布特征[J].浙江农业学报,2016,28(10):1 772-1 780.
[32] 王忠威,王圣瑞,戴建军,等.洱海沉积物中磷的赋存形态[J].环境科学研究,2012,25(6):652-658.
[33] 史静,俎晓静,张乃明,等.滇池草海沉积物磷形态、空间分布特征及影响因素[J].中国环境科学,2013,33(10):1 808-1 813.
[34] 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[J].环境科学学报,2017,37(10):3 792-3 803.
[35] ROSE T J, HARDIPUTRA B, RENGEL Z. Wheat, canola and grain legume access to soil phosphorus fractions differs in soils with contrasting phosphorus dynamics[J]. Plant & Soil, 2010,326(1):159-170.
[36] 李智圆,杨常亮,李世玉,等.砷污染治理后阳宗海沉积物砷的分布与稳定性[J].环境科学与技术,2015,38(2):41-47.
[37] 吴萍萍.不同类型矿物和土壤对砷的吸附——解吸研究[D].北京:中国农业科学院,2011.
[38] TUUTIJARVI T, REPO E, VAHALA R, et al. Effect of competing anions on arsenate adsorption onto maghemite nanoparticles[J].中国化学工程学报(英文版),2012,20(3):505-514.
[39] 石荣,贾永锋,王承智.土壤矿物质吸附砷的研究进展[J].土壤通报,2007,38(3):584-589.
[40] 张培志,冯旭文,钱江初.有机质对S1nm锰矿相金属阳离子交换能力的影响[J].海洋学报,2002,24(5):134-140.
[41] 黄廷林,周瑞媛,夏超,等.氧化还原电位及微生物对水库底泥释磷的影响[J].环境化学,2014(6):930-936.
[42] 赵斌,卢少勇,罗杨阳,等.洱海缓冲带典型入湖溪流沉积物磷形态的分布特征[J].水土保持通报,2016,36(3):94-97.
[43] 徐洋,陈敬安,王敬富,等.氧化还原条件对红枫湖沉积物磷释放影响的微尺度分析[J].湖泊科学,2016,28(1):68-74.