ZHANG Handan,DANG Ning,LIN Xuefeng,et al.Distribution Characteristics of Nutrients and Pollution Status Evaluation of Sediments in Changtan Reservoir[J].Research of Soil and Water Conservation,2023,30(02):438-443,450.[doi:10.13869/j.cnki.rswc.2023.02.041]
长潭水库水体沉积物营养盐分布特征及其污染评价
- Title:
- Distribution Characteristics of Nutrients and Pollution Status Evaluation of Sediments in Changtan Reservoir
- 文章编号:
- 1005-3409(2023)02-0438-06
- Keywords:
- Changtan Reservoir; sediment; TOC; TN; TP; chemometric characteristics; pollution evaluation
- 分类号:
- X524
- 文献标志码:
- A
- 摘要:
- 探究长潭水库库区沉积物中碳(C)、氮(N)、磷(P)含量特征及其污染状况,可为区域水环境质量提升提供理论依据。研究于2021年9月在水库中心区及8条入库支流断面设置28个采样点,对表层沉积物中的总有机碳(TOC)、总氮(TN)、总磷(TP)含量进行测定,并采用单因子指数法、综合污染指数法和有机污染指数法对库区污染状况进行了评价。结果表明:库区表层沉积物中TOC,TN和TP含量分别为(13.67±3.81)g/kg,(1.46±0.37)g/kg,(0.43±0.17)g/kg; 其中,以柔极溪(RJR)含量较高,其TOC含量显著高于库中心区与其余入库支流(p<0.05)。表层沉积物中C/N,C/P,N/P比值范围分别为7.72～15.07,15.28～63.20,1.66～6.26。由单因子指数法和综合污染指数法分析可知,整个库区水体沉积物TN污染严重,基本属于重度污染; 有机氮评价结果进一步表明库区整体处于Ⅲ级污染水平(尚清洁),其中以库中心区和RJR污染较重,存在有机氮污染(等级为Ⅳ级)。长潭水库存在一定的内源污染,且以有机污染为主。未来应加强库区水体沉积物营养盐含量动态的监测研究。
- Abstract:
- The aim of this study is to investigate the characteristics of the contents of carbon(C), nitrogen(N)and phosphorus(P)in the sediments of Changtan Reservoir and the pollution status, thus to provide theoretical basis for the improvement of regional water environment quality. This study set up 28 sampling points within the reservoir in September 2021, which included 8 inlet tributary sections and the central area of the reservoir. The surface sediments were selected to measure the contents of total organic carbon(TOC), total nitrogen(TN), and total phosphorus(TP). Meanwhile, the pollution status of the reservoir was evaluated by single factor index method, integrated pollution index method, and organic pollution index method. Results showed that the contents of TOC, TN and TP in the surface sediments of the reservoir area were(13.67±3.81)g/kg,(1.46±0.37)g/kg, and(0.43±0.17)g/kg, respectively; specifically, the TOC content in RJR was significantly higher than that in other sampling sites(p<0.05); the C/N, C/P and N/P ratios in the surface sediments ranged from 7.72 to 15.07, 15.28 to 63.20, and 1.66 to 6.26, respectively; according to the single factor index and comprehensive pollution index, the whole reservoir was suffering from heavy TN pollution; the organic nitrogen index further indicated that the reservoir was at the levelⅢ, among which the central area and RJR were heavily polluted by organic nitrogen(level Ⅳ); there was a certain amount of endogenous pollution in Changtan Reservoir, mainly for the organic pollution. More attentions should be paid to the dynamics of nutrients in the sediments of Changtan Reservoir.
参考文献/References:
[1] Gao X L, Song J M, Li X G, et al. Sediment quality of the Bohai Sea and the northern Yellow Sea indicated by the results of acid-volatile sulfide and simultaneously extracted metals determinations[J]. Marine Pollution Bulletin, 2020,155:111147.
[2] Hossain G M, Bhuiyan M A H. Spatial and temporal variations of organic matter contents and potential sediment nutrient index in the Sundarbans mangrove forest, Bangladesh[J]. Ksce Journal of Civil Engineering, 2016,20(1):163-174.
[3] 李运奔,匡帅,王臻宇,等.东巢湖沉积物—水界面氮、磷、氧迁移特征及意义[J].湖泊科学,2020,32(3):688-700.
[4] 刘昔,邓兆林,张露,等.洪湖沉积物内源污染及其氮磷释放特征[J].环境科学研究,2022,35(1):80-88.
[5] 袁轶君,刘娜娜,陈传红,等.环境因子对鄱阳湖沉积物中内源磷释放的影响[J].江苏农业科学,2020,48(5):227-235.
[6] Dinçer A R, Yümün S,Önce M, et al. Investigation of inland pollution using total carbon(TC), total organic carbon(TOC), inorganic carbon(IC), total nitrogen(TN)and TOC/TN ratios[J]. Applied Ecology and Environmental Research, 2019,17(6):14751-14765.
[7] 房吉敦,熊永强,吴丰昌,等.典型水库沉积有机质组成特征及其源解析[J].环境科学与技术,2018,41(2):41-46.
[8] Ma T, Shi L, Li Z, et al. Eutrophication trend analysis and forewarning model construction of water source reservoirs:Gaozhou Reservoir, China[J]. Ecohydrology, 2022,15(2):e2371.
[9] 丁洋,赵进勇,张晶,等.松花湖水质空间差异及富营养化空间自相关分析[J].环境科学,2021,42(5):2232-2239.
[10] Jeppesen E, Meerhoff M, Jacobsen B A, et al. Restoration of shallow lakes by nutrient control and biomanipulation—the successful strategy varies with lake size and climate[J]. Hydrobiologia, 2007,581(1):269-285.
[11] 狄贞珍,张洪,单保庆.太湖内源营养盐负荷状况及其对上覆水水质的影响[J].环境科学学报,2015,35(12):3872-3882.
[12] 孟亚媛,王圣瑞,焦立新,等.滇池表层沉积物氮污染特征及其潜在矿化能力[J].环境科学,2015,36(2):471-480.
[13] 谢发之,罗锟,朱元荣,等.南漪湖沉积物磷的赋存形态及对上覆水的影响研究[J].中国环境科学,2022, DOI:10.19674/j.cnki.issn1000-6923.20220616.024.
[14] Wang L F, Xia J, Yu J J, et al. Spatial Variation, Pollution Assessment and Source Identification of Major Nutrients in Surface Sediments of Nansi Lake, China[J]. Water, 2017,9:DOI:10.3390/w9060444.
[15] Yu J, Zeng Y, Chen J, et al. Organic phosphorus regeneration enhanced since eutrophication occurred in the sub-deep reservoir[J]. Environmental Pollution, 2022,306:119350.
[16] 徐宜雪,魏伟伟,李春华,等.长潭水库湖滨带、缓冲带范围划定及生态修复实践[J].环境工程技术学报,2022, DOI:10.12153/j.issn.1674-991X.2021051[17] 肖喆,李文攀,张靖天,等.长潭水库生态问题诊断与对策研究[J].环境工程技术学报,2021,11(4):670-677.
[18] 屠林初.浅析近年来长潭水库环境水文指标的变动趋势[J].吉林农业,2018(7):74-75.
[19] 汪敬忠,刘卓,魏浩,等.白洋淀表层沉积物元素的空间特征、风险评价及来源分析[J].环境科学,2020,41(1):224-231.
[20] 方家琪,祁闯,张新厚,等.太湖竺山湾沉积物碳氮磷分布特征与污染评价[J].环境科学,2019,40(12):5367-5374.
[21] Zhang Y, Li M, Dong J, et al. A critical review of methods for analyzing freshwater eutrophication[J]. Water, 2021,13: 225.
[22] 王艳平,徐伟伟,韩超,等.巢湖沉积物氮磷分布及污染评价[J].环境科学,2021,42(2):699-711.
[23] 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].长江科学院院报,2021,38(8):41-46.
[24] 程先,孙然好,孔佩儒,等.海河流域水体沉积物碳、氮、磷分布与污染评价[J].应用生态学报,2016,27(8):2679-2686.
[25] 冀峰,王国祥,韩睿明,等.太湖流域农村黑臭河流表层沉积物营养盐的污染特征[J].水土保持通报,2016,36(3):81-87,93.
[26] 尹德超,王雨山,祁晓凡,等.白洋淀湿地不同植物群落区表层沉积物碳氮磷化学计量特征[J].湖泊科学,2022,34(2):506-516.
[27] 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.
[28] 杨洋,刘其根,胡忠军,等.太湖流域沉积物碳氮磷分布与污染评价[J].环境科学学报,2014,34(12):3057-3064.
[29] 胡强,吴晓彬,王姣,等.江西省典型水库沉积物碳·氮·磷分布及污染评价[J].江西水利科技,2021,47(3):214-218.
[30] Carneiro L M, Zucchi M D, de Jesus T B, et al.δ13C, δ15 N and TOC/TN as indicators of the origin of organic matter in sediment samples from the estuary of a tropical river[J]. Marine Pollution Bulletin, 2021,172:112857.
[31] 祁闯,方家琪,张利民,等.太湖藻型湖区沉积物中生物易降解物质组成及分布规律[J].湖泊科学,2019,31(4):941-949.
[32] 朱晓磊,张洪,雷沛,等.官厅水库沉积物中大量元素的历史分布特征[J].环境科学学报,2016,36(2):442-449.
[33] 张智博,刘涛,曹起孟,等.东平湖沉积物—菹草系统碳、氮、磷空间分布及化学计量特征[J].环境化学,2020,39(8):2263-2271.
[34] 闫兴成,王明玥,许晓光,等.富营养化湖泊沉积物有机质矿化过程中碳、氮、磷的迁移特征[J].湖泊科学,2018,30(2):306-313.
[35] Tian H Q, Chen G S, Zhang C, et al. Pattern and variation of C:N:P ratios in China's soils:a synthesis of observational data[J]. Biogeochemistry, 2010,98:139-151.
[36] Zhang J H, Li M X, Xu L, et al. C:N:P stoichiometry in terrestrial ecosystems in China[J]. Science of the Total Environment, 2021,795:148849.
[37] 向速林,吴涛哲,龚聪远,等.鄱阳湖沉积物与水界面氮的迁移特征及污染评价[J].生态环境学报,2021,30(4):781-786.
[38] 张紫霞,刘鹏,王妍,等.不同类型岩溶湿地表层沉积物碳氮磷生态化学计量学特征时空分布[J].水土保持研究,2020,27(4):23-30.
[39] 苗慧,沈峥,蒋豫,等.巢湖表层沉积物氮、磷、有机质的分布及污染评价[J].生态环境学报,2017,26(12):2120-2125.
[40] 杜奕衡,刘成,陈开宁,等.白洋淀沉积物氮磷赋存特征及其内源负荷[J].湖泊科学,2018,30(6):1537-1551.
相似文献/References:
[1]杨世荣,蒙仲举,党晓宏,等.库布齐沙漠生态光伏电站不同覆盖类型下土壤粒度特征[J].水土保持研究,2020,27(01):112.
YANG Shirong,MENG Zhongju,DANG Xiaohong,et al.Grain Size Characteristics of Surface Sediments of Eco-Photovoltaic Power Station in Kubuqi Desert[J].Research of Soil and Water Conservation,2020,27(02):112.
[2]何琪琳,张风宝,吴普侠,等.渭河陕西段河道沉积物中碳氮磷时空变化分析及评价[J].水土保持研究,2021,28(03):88.
HE Qilin,ZHANG Fengbao,WU Puxia,et al.Spatiotemporal Variations and Evaluation of Carbon, Nitrogen and Phosphorus in Sediments of the Weihe River in Shaanxi Province[J].Research of Soil and Water Conservation,2021,28(02):88.
备注/Memo
收稿日期:2022-08-22 修回日期:2022-09-08
资助项目:浙江省省院合作林业科技项目(2021SY12); 国家自然科学基金(41807151)
第一作者:张涵丹(1990—),女,浙江绍兴人,博士研究生,助理研究员,主要研究方向为流域水文过程与水质净化。E-mail:zhd623@163.com
通信作者:陈光才(1978—),男,山东高密人,博士研究生,研究员,主要从事受损/退化生态系统修复研究。E-mail:guangcaichen@sohu.com