拉鲁湿地沉积物碳氮磷分布及污染风险评价

doi:10.19741/j.issn.1673-4831.2020.0338

Abstract

Abstract: Lhalu wetland is the world's highest and largest natural wetland in city. In order to study the changes of its sediment pollution, the sediments from 59 and 48 points of Lhalu wetland were collected in December 2018 (dry season) and May 2019 (wet season), respectively, which were analyzed for the spatial distribution characteristics and stoichiometric ratio of total nitrogen (TN), total phosphorus (TP) and total organic matter (OM). In addition, pollution risk assessment was carried out by the comprehensive pollution index method and organic pollution index. Results show that the content of TN, TP and OM in sediments were higher in wet season than in dry season. The content of TN, TP and OM in sediment in dry season was 0.18-6.35 g·kg^-1, 0.33-2.88 g·kg^-1 and 27.18-268.98 g·kg^-1, respectively. The highest content of TN and OM was found in middle-west and east of Lhalu wetland. However, the highest content of TP was found in west and middle-west of Lhalu wetland. The ratio of C/N in dry season was 15.04-85.31, which was significantly higher in the north part than in other parts of the Lhalu wetland (P<0.05). The ratio of C/N in wet season was 3.09-97.46, which was significantly lower in the west part than in the other parts of the Lhalu wetland (P<0.05). The ratio of C/N of the wetland was higher than 10, which suggests that the organic matters in dry and wet seasons were from outside. The OM in the sediments was mineralized during the wet season. The Lhalu wetland is relatively clean in the north, while some degrees of pollution were found in other parts of the wetland.

Key words: Lhalu Wetland, dry and wet season, sediment, carbon, nitrogen and phosphorus, pollution assessment

CLC Number:

REN Jing-wen, WANG Jia-jun, ZHOU Lei, XU De-fu, ZHANG Jian-wei. Distribution of Carbon, Nitrogen and Phosphorus in Sediments of Lhalu Wetland in Dry and Wet Seasons and It's Pollution Risk Assessment[J]. Journal of Ecology and Rural Environment, 2021, 37(2): 172-181.

References

[1] 边华林,杨广军,牛艳东,等.洞庭湖不同水位梯度川三蕊柳和短尖薹草土壤有机碳垂直分布特征[J].生态与农村环境学报,2019,35(8):1051-1057.[BIAN Hua-lin,YANG Guang-jun,NIU Yan-dong,et al.Vertical Distribution of Soil Organic Carbon in Salix triandroides and Carex brevicuspis Communities along Water Level Gradients in the Dongting Lake Wetlands[J].Journal of Ecology and Rural Environment,2019,35(8):1051-1057.]
[2] 盛宣才,邵学新,吴明,等.水位对杭州湾芦苇湿地土壤有机碳、氮、磷含量的影响[J].生态与农村环境学报,2015,31(5):718-723.[SHENG Xuan-cai,SHAO Xue-xin,WU Ming,et al.Effects of Water Level on Organic Carbon,Total Nitrogen and Total Phosphoruse in Soil in Reed Wetlands of Hangzhou Bay[J].Journal of Ecology and Rural Environment,2015,31(5):718-723.]
[3] 潘玲.北大港水库沉积物中有机碳和营养盐的分布特征[D].天津:天津师范大学,2016.
[4] STAGG C L,SCHOOLMASTER D R,KRAUSS K W,et al.Causal Mechanisms of Soil Organic Matter Decomposition:Deconstructing Salinity and Flooding Impacts in Coastal Wetlands[J].Ecology,2017,98(8):2003-2018.
[5] 王书锦.罗时江河口湿地沉积物碳氮磷时空分布规律及潜在生态风险研究[D].昆明:西南林业大学,2017.
[6] 明升平,史晓楠,杨斌.拉鲁湿地不同水质对水生植物种子萌发和幼苗存活的影响研究[J].西藏科技,2017(8):66-69.
[7] 郝文渊,李文博,王忠斌,等.西藏拉萨河谷拉鲁湿地生态系统健康评价[J].干旱区资源与环境,2013,27(5):95-99.[HAO Wen-yuan,LI Wen-bo,WANG Zhong-bin,et al.Health Assessment of Lalu Wetland Ecosystem in Lhasa-river Valley of Tibet[J].Journal of Arid Land Resources and Environment,2013,27(5):95-99.]
[8] 李江,胡雪娇,石佳,等.湿地研究现状及保护管理[J].生物学通报,2015,50(12):1-5.[LI J,HU X J,SHI J,et al.Current Status of Wetland Research and Conservation Management[J].Bulletin of Biology,2015,50(12):1-5.]
[9] 宗浩,王成善,黄川友,等.西藏拉萨市拉鲁湿地的生态特征与退化机理的探讨[J].西南民族大学学报(自然科学版),2005,31(1):72-78.[ZONG Hao,WANG Cheng-shan,HUANG Chuan-you,et al.Research on Ecological Characteristics and Ecological Degredation of Tibetan Lhalu Wetland[J].Journal of Southwest University for Nationalities (Natural Science Edition),2005,31(1):72-78.]
[10] 屈凡柱,孟灵,付战勇,等.不同生境条件下滨海芦苇湿地C、N、P化学计量特征[J].生态学报,2018,38(5):1731-1738.[QU Fan-zhu,MENG Ling,FU Zhan-yong,et al.The Stoichiometry Characterization of Carbon,Nitrogen and Phosphorus in Different Reed-dominated Coastal Wetland Habitats[J].Acta Ecologica Sinica,2018,38(5):1731-1738.]
[11] 刘玥,杨继松,于洋,等.辽河口不同类型湿地土壤碳氮磷生态化学计量学特征[J].生态学杂志,2020,39(9):3011-3020.[LIU Yue,YANG Ji-song,YU Yang,et al.Stoichiometric Characteristics of Carbon,Nitrogen and Phosphorus of Soil in the Liaohe Estuary Wetlands[J].Chinese Journal of Ecology,2020,39(9):3011-3020.]
[12] 张文驹,张潇潇.拉鲁湿地水质评价与分析[J].安徽农业科学,2014,42(5):1477-1478,1502.[ZHANG Wen-ju,ZHANG Xiao-xiao.Lalu Wetland Water Quality Evaluation and Analysis[J].Journal of Anhui Agricultural Sciences,2014,42(5):1477-1478,1502.]
[13] 李春,周刊社,李晖.拉鲁湿地主要植物群落结构及物种多样性[J].西北植物学报,2008,28(12):2514-2520.[LI Chun,ZHOU Kan-she,LI Hui.Species Diversity and Structure of Main Plant Communities in Lalu Wetland[J].Acta Botanica Boreali-occidentalia Sinica,2008,28(12):2514-2520.]
[14] 白永飞,黄伟,罗笑娟,等.拉鲁湿地水中主要金属元素分布分析评价[J].环境科学与技术,2016,39(6):174-178.[BAI Yong-fei,HUANG Wei,LUO Xiao-juan,et al.Analysis and Evaluation on the Distribution of Main Metal Elements in Water of Lhalu Wetland in Tibet[J].Environmental Science & Technology,2016,39(6):174-178.]
[15] 郅昆山.中国最大的城市湿地-拉萨拉鲁湿地[J].中学地理教学参考,2001(4):18-19.
[16] 王书锦,刘云根,张超,等.洱海流域入湖河口湿地沉积物氮、磷、有机质分布及污染风险评价[J].湖泊科学,2017,29(1):69-77.[WANG Shu-jin,LIU Yun-gen,ZHANG Chao,et al.Distribution and Pollution Risk Assessment of Nitrogen,Phosphorus and Organic Matter in Inlet Rivers of Erhai Basin[J].Lake Science,2017,29(1):69-77.]
[17] HORPPILA J,NURMINEN L.Effects of Different Macrophyte Growth Forms on Sediment and P Resuspension in a Shallow Lake[J].Hydrobiologia,2005,545(1):167-175.
[18] 陈姗,许凡,谢三桃,等.合肥市十八联圩湿地表层沉积物营养盐与重金属分布及污染评价[J].环境科学,2019,40(11):4932-4943.[CHEN Shan,XU Fan,XIE San-tao,et al.Distribution and Pollution Assessment of Nutrients and Heavy Metals in Surface Sediments from Shibalianwei Wetland in Hefei,Anhui Province,China[J].Environmental Science,2019,40(11):4932-4943.]
[19] 赵丹丹.东洞庭湖湿地土壤养分状况及其评价[D].长沙:湖南师范大学,2016.[ZHAO D D.Soil Nutrient Status and Evaluation of East Dongting Lake Wetland[D].Changsha:Hunan Normal University,2016]
[20] 王佩,卢少勇,王殿武,等.太湖湖滨带底泥氮、磷、有机质分布与污染评价[J].中国环境科学,2012,32(4):703-709.[WANG Pei,LU Shao-yong,WANG Dian-wu,et al.Nitrogen,Phosphorous and Organic Matter Spatial Distribution Characteristics and Their Pollution Status Evaluation of Sediments Nutrients in Lakeside Zones of Taihu Lake[J].China Environmental Science,2012,32(4):703-709.]
[21] 张紫霞,刘鹏,王妍,等.普者黑岩溶湿地沉积物氮、磷、有机质分布及污染风险评价[J].生态环境学报,2019,28(9):1835-1842.[ZHANG Zi-xia,LIU Peng,WANG Yan,et al.Distribution and Pollution Risk Assessment of Nitrogen,Phosphorus and Organic Matter in Puzhehei Karst Wetland Sediments[J].Ecology and Environment Sciences,2019,28(9):1835-1842.]
[22] 张雷,郑丙辉,田自强,等.西太湖典型河口区湖滨带表层沉积物营养评价[J].环境科学与技术,2006,29(5):4-6,13.[ZHANG Lei,ZHENG Bin-hui,TIAN Zi-qiang,et al.Nutrition Evaluation on Surface Layer Sediment of Typical Estuarine Aquatic-terrestrial Ecotone in West Taihu Lake[J].Environmental Science & Technology,2006,29(5):4-6,13.]
[23] D'ANGELO E M,REDDY K R.Diagenesis of Organic Matter in a Wetland Receiving Hypereutrophic Lake Water:I.Distribution of Dissolved Nutrients in the Soil and Water Column[J].Journal of Environmental Quality,1994,23(5):928-936.
[24] 沈丽丽,何江,吕昌伟,等.哈素海沉积物中氮和有机质的分布特征[J].沉积学报,2010,28(1):158-165.[SHEN Li-li,HE Jiang,LÜ Chang-wei,et al.Distribution Characteristics of Nitrogen and Organic Matter in Sediments of the Hasuhai Lake[J].Acta Sedimentologica Sinica,2010,28(1):158-165.]
[25] 赵海超,王圣瑞,焦立新,等.洱海沉积物有机质及其组分空间分布特征[J].环境科学研究,2013,26(3):243-249.[ZHAO Hai-chao,WANG Sheng-rui,JIAO Li-xin,et al.Characteristics of Composition and Spatial Distribution of Organic Matter in the Sediment of Erhai Lake[J].Research of Environmental Sciences,2013,26(3):243-249.]
[26] 魏伟伟,叶春,李春华.太湖竺山湾缓冲带内湿地表层沉积物氮、磷和有机质的分布特征及评价[J].环境污染与防治,2018,40(5):588-591.[WEI Wei-wei,YE Chun,LI Chun-hua.Nitrogen,Phosphorous and Organic Matter Distribution Characteristics and Evaluation of Surface Sediments in Wetlands of Zhushan Bay Buffer Zone,in Taihu Lake[J].Environmental Pollution and Control,2018,40(5):588-591.]
[27] 王雁,黄佳聪,闫人华,等.湖泊湿地的水质净化效应:以太湖三山湿地为例[J].湖泊科学,2016,28(1):124-131.[WANG Yan,HUANG Jia-cong,YAN Ren-hua,et al.Nutrient Removal Efficiency of Lake Wetlands:A Case Study of Sanshan Wetland in Lake Taihu,Eastern China[J].Journal of Lake Sciences,2016,28(1):124-131.]
[28] 胡喆.南四湖沉积物-水体界面氮磷迁移转化规律研究[D].济南:山东建筑大学,2015.
[29] WANG J,BAI J,ZHAO Q,et al.Five-Year Changes in Soil Organic Carbon and Total Nitrogen in Coastal Wetlands Affected by Flow-sediment Regulation in a Chinese Delta[J].Scientific Reports,2016,6:21137.
[30] 杨文焕,崔亚楠,李卫平,等.冰封期湿地沉积物碳、氮、磷分布及污染评价[J].环境化学,2018,37(2):287-295.[YANG Wen-huan,CUI Ya-nan,LI Wei-ping,et al.Distribution and Pollution Evaluation of Carbon,Nitrogen and Phosphorus in Sediments of Lake Nanhai in Baotou City[J].Environmental Chemistry,2018,37(2):287-295.]
[31] 张紫霞,刘鹏,王妍,等.普者黑岩溶湿地干湿季沉积物氮、磷、有机质分布及污染风险评价[J].环境科学学报,2019,39(12):4088-4095.[ZHANG Zi-xia,LIU Peng,WANG Yan,et al.Distribution of Nitrogen,Phosphorus and Organic Matter in Sediments of Puzhehei Karst Wetland in Dry and Wet Season and Pollution Risk Assessment[J].Acta Scientiae Circumstantiae,2019,39(12):4088-4095.]
[32] 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,2016,37(12):4615-4625.[WANG Shu-jin,LIU Yun-gen,WANG Yan,et al.Vertical Distribution and Pollution Risk Assessment of Nitrogen,Phosphorus,and Organic Matter in Sediment of Inflowing Rivers of Erhai Lake Estuarine Wetland in Wet and Dry Seasons[J].Environmental Science,2016,37(12):4615-4625.]

Distribution of Carbon, Nitrogen and Phosphorus in Sediments of Lhalu Wetland in Dry and Wet Seasons and It's Pollution Risk Assessment

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