|
|
Forms of nitrogen and phosphorus and their spatial variability in East Tiaoxi River |
XU Bing-bing1, LU Feng1,2, HUANG Qing-hui1, LI Jian-hua1 |
1. College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
2. Shanghai Municipal Engineering Design Institute(Group) Corporation Limited, Shanghai 200092, China |
|
|
Abstract From 2009 to 2011, four field surveys were carried out in East Tiaoxi River watershed. The forms of nitrogen and phosphorus and their spatial variability were analyzed. East Tiaoxi River could be divided into three sections, namely upper reach, middle-up reach and middle-lower reach, and characterized by hilly river, river influenced by urban and plain river, respectively. The results showed that dissolved nitrogen was the main nitrogen species in water, and nitrate(NO3--N) was the major form of dissolved total nitrogen(DTN) species. Meanwhile, phosphorus in particulate form was slightly more abundant than that in dissolved form(dissolved total phosphorus(DTP)) in the samples. And the relative partition of DTP to TP decreased along the river flow. The dissolved organic nitrogen(DON) and phosphorus(DOP) accounted for 22% and 42% of DTN and DTP, respectively, with a significant positive correlations as well. The higher ammonia nitrogen(NH4+-N), DOP and orthophosphate(PO43--P) in middle-up reach, accompanied by the positively correlated conductivity with NH4+-N and DOP, indicated that the discharge of urban sewage probably affected the contents and species of nitrogen and phosphorus. The positive correlations between turbidity and all forms of phosphorus revealed that the inputs of mineral particles or sediment resuspensions, which were induced from mining, navigation and digging in lower reach, may be important sources of phosphorus. Finally, the slight reduction of DTP in middle-lower reach was also observed, which was probably induced by adsorption of dissolved phosphorus into the surface of mineral particles.
|
Received: 15 September 2015
|
|
|
|
|
[1] |
赵学敏,马千里,姚玲爱,等.龙江河水体中氮磷水质风险评价[J]. 中国环境科学, 2013,33(S1):233-238.
|
[2] |
Conley D J, Paerl H W, Howarth R W, et al. Controlling eutrophication:nitrogen and phosphorus[J]. Science, 2009, 323(5917):1014-1015.
|
[3] |
Gillor O, Hadas O R A, Post A F, et al. Phosphorus and nitrogen in a monomictic freshwater lake:employing cyanobacterial bioreporters to gain new insights into nutrient bioavailability[J]. Freshwater Biology, 2010,55(6):1182-1190.
|
[4] |
Berman T, Bronk D A. Dissolved organic nitrogen:a dynamic participant in aquatic ecosystems[J]. Aquatic Microbial Ecology, 2003,31(3):279-305.
|
[5] |
Worsfold P J, Monbet P, Tappin A D, et al. Characterisation and quantification of organic phosphorus and organic nitrogen components in aquatic systems:a review[J]. Analytica Chimica Acta, 2008,624(1):37-58.
|
[6] |
吴丰昌,金相灿,张润宇,等.论有机氦磷在湖泊水环境中的作用和重要性[J]. 湖泊科学, 2010,(1):1-7.
|
[7] |
聂泽宇,梁新强,邢波,等.基于氮磷比解析太湖苕溪水体营养现状及应对策略[J]. 生态学报, 2012,32(1):48-55.
|
[8] |
顾蕾,吴春骏,王鑫.基于遥感的临安市土地利用变化及驱动力分析[J]. 浙江林学院学报, 2009,26(6):870-876.
|
[9] |
朱广伟.太湖水质的时空分异特征及其与水华的关系[J]. 长江流域资源与环境, 2009,18(5):439-445.
|
[10] |
李伟.苕溪流域地表水水质综合评价与非点源污染模拟研究[D]. 杭州:浙江大学, 2013.
|
[11] |
王欢,袁旭音,陈海龙,等.太湖流域上游西苕溪支流的营养状态特征及成因分析[J]. 湖泊科学, 2015,27(2):208-215.
|
[12] |
Liang T, Wang H, Rung H T, et al. Agriculture Land-use Effects on nutrient losses in west Tiaoxi watershed, China[J]. Journal of the American Water Resources Association, 2004,40(6):1499-1510.
|
[13] |
魏复盛,毕彤,齐文启.水和废水检测分析方法[M]. 4版.北京, 2002.
|
[14] |
Huang Q H, Wang Z J, Wang D H, et al. Origins and mobility of phosphorus forms in the sediments of Lakes Taihu and Chaohu, China[J]. Journal of Environmental Science and Health, 2005, 40(1):91-102.
|
[15] |
吴雅丽,许海,杨桂军,等.太湖水体氮素污染状况研究进展[J]. 湖泊科学, 2014,26(1):19-28.
|
[16] |
Wu J S, Jiang P K, Chang S X, et al. Dissolved soil organic carbon and nitrogen were affected by conversion of native forests to plantations in subtropical China[J]. Canadian Journal of Soil Science, 2010,90(1):27-36.
|
[17] |
曹承进,秦延文,郑丙辉,等.三峡水库主要入库河流磷营养盐特征及其来源分析[J]. 环境科学, 2008,29(2):310-315.
|
[18] |
Mattsson T, Kortelainen P, Laubel A, et al. Export of dissolved organic matter in relation to land use along a European climatic gradient[J]. Science of the Total Environment, 2009,407(6):1967-1976.
|
[19] |
Helland A, Holtan G, Jørgensen P. Riverine inputs of organic carbon and nitrogen to Norwegian coastal areas[J]. AMBIO:A Journal of the Human Environment, 2003,32(6):412-417.
|
[20] |
Guildford S J, Hecky R E. Total nitrogen, total phosphorus, and nutrient limitation in lakes and oceans:Is there a common relationship?[J]. Limnology and Oceanography, 2000,45(6):1213-1223.
|
[21] |
Keck F, Lepori F. Can we predict nutrient limitation in streams and rivers?[J]. Freshwater Biology, 2012,57(7):1410-1421.
|
[22] |
Kaushal S S, Lewis Jr W M. Fate and transport of organic nitrogen in minimally disturbed montane streams of Colorado, USA[J]. Biogeochemistry, 2005,74(3):303-321.
|
[23] |
Seitzinger S P, Sanders R, Styles R. Bioavailability of DON from natural and anthropogenic sources to estuarine plankton[J]. Limnology and Oceanography, 2002,47(2):353-366.
|
[24] |
Wiegner T N, Seitzinger S P, Glibert P M, et al. Bioavailability of dissolved organic nitrogen and carbon from nine rivers in the eastern United States[J]. Aquatic Microbial Ecology, 2006,43(3):277-287.
|
[25] |
张强,刘正文.附着藻类对太湖水体中3种氮源的吸收作用[J]. 水生态学杂志, 2014,35(1):60-64.
|
[26] |
胡正峰.加拿大格兰德河水体磷素形态转化及水生生物对磷素吸收释放研究[D]. 重庆:西南大学, 2013.
|
[27] |
高光,秦伯强,朱广伟,等.太湖梅梁湾中碱性磷酸酶的活性及其与藻类生长的关系[J]. 湖泊科学, 2004,16(3):245-251.
|
[28] |
刘梅芳,王海英.氮源及其浓度对三角褐指藻生长及其脂肪酸组成的影响[J]. 中南民族大学学报:自然科学版, 2008,27(2):32-35.
|
|
|
|