长江流域资源与环境 >> 2016, Vol. 25 >> Issue (04): 630-637.doi: 10.11870/cjlyzyyhj201604013
赵丽1, 姜霞1, 王雯雯1, 王书航1, 常乐2, 陈俊伊1
ZHAO Li1, JIANG Xia1, WANG Wen-wen1, WANG Shu-hang1, CHANG Le2, CHEN Jun-yi1
摘要: 为了揭示丹江口水库沉积物氮空间分布特征及其生物有效性,采用连续分级提取法研究了表层沉积物中可交换态氮(Exchangeable nitrogen,EN)、酸解态氮(Acid hydrolysable nitrogen,HN)及残渣态氮(Residue nitrogen,RN)的赋存特征,同时结合生物可利用态氮的含量,探讨了各形态氮对生物可利用态氮的贡献。结果表明,丹江口水库沉积物中总氮(Totalnitrogen,TN)在425~5796 mg/kg之间,平均为1 319.32 mg/kg,其中EN、HN和RN的平均值相对比例为2.15:1.95:1,且各形态氮含量的空间分布呈入库河流大于库区开阔区域的特征,尤其在丹江、老灌河以及犟河-堵河入库口的含量较大。潜在矿化氮(Potential mineralized nitrogen,PMN)含量在40.20~1 468.95 mg/kg之间,平均为275.06 mg/kg,其中EN对丹江口水库沉积物PMN的贡献较大,比例在19.85%~90.80%之间,平均为63.47%。各形态氮在不同的水环境条件下发生迁移转化,保持着水-沉积物界面氮的动态平衡。
中图分类号:
[1] GALLOWAY J N, BEKUNDA M, CAI Z, et al. A preliminary assessment of "changes in the global nitrogen cycle as a result of anthropogenic influences"[C]//Proceedings of the 3rd International Nitrogen Conference. Nanjing, China, 2004. [2] REITZEL K, AHLGREN J, GOGOLL A, et al. Effects of aluminum treatment on phosphorus, carbon, and nitrogen distribution in lake sediment: A 31P NMR study[J]. Water Research, 2006, 40(4): 647-654. [3] NI Z K, WANG S R. Historical accumulation and environmental risk of nitrogen and phosphorus in sediments of Erhai Lake, Southwest China[J]. Ecological Engineering, 2015, 79: 42-53. [4] SHANG J G, ZHANG L, SHI C J, et al. Influence of Chironomid Larvae on oxygen and nitrogen fluxes across the sediment-water interface (Lake Taihu, China)[J]. Journal of Environmental Sciences, 2013, 25(5): 978-985. [5] HAN H J, LU X X, BURGER D F, et al. Nitrogen dynamics at the sediment-water interface in a tropical reservoir[J]. Ecological Engineering, 2014, 73: 146-153. [6] SHAN L N, HE Y F, CHEN J, et al. Nitrogen surface runoff losses from a Chinese cabbage field under different nitrogen treatments in the Taihu Lake Basin, China[J]. Agricultural Water Management, 2015, 159: 255-263. [7] WANG S R, JIN X C, NIU D L, et al. Potentially mineralizable nitrogen in sediments of the shallow lakes in the middle and lower reaches of the Yangtze River area in China[J]. Applied Geochemistry, 2009, 24(9): 1788-1792. [8] JING L D, WU C X, LIU J T, et al. The effects of dredging on nitrogen balance in sediment-water microcosms and implications to dredging projects[J]. Ecological Engineering, 2013, 52: 167-174. [9] 王雯雯, 王书航, 姜霞, 等. 洞庭湖沉积物不同形态氮赋存特征及其释放风险[J]. 环境科学研究, 2013, 26(6): 598-605.[WANG W W, WANG S H, JIANG X, et al. Occurrence characteristics and release risk of nitrogen fractions in sediments of Dongting Lake[J]. Research of Environmental Sciences, 2013, 26(6): 598-605.] [10] 钟立香, 王书航, 姜霞, 等. 连续分级提取法研究春季巢湖沉积物中不同结合态氮的赋存特征[J]. 农业环境科学学报, 2009, 28(10): 2132-2137.[ZHONG L X, WANG S H, JIANG X, et al. Speciation characteristics of different combined nitrogen in the spring sediments of Chaohu Lake by sequential extraction methods[J]. Journal of Agro-Environment Science, 2009, 28(10): 2132-2137.] [11] 钟立香. 巢湖水-沉积物系统中氮的赋存变化及其与水华发生的关系研究[D]. 北京: 中国环境科学研究院硕士学位论文, 2009.[ZHONG L X. The study on nitrogen occurrence characteristic in water-sediment system and their relationship with algal bloom in Chaohu Lake[D]. Beijing: Master Dissertation of Chinese Research Academy of Environmental Sciences, 2009.] [12] 刘远书, 高文文, 侯坤, 等. 南水北调中线水源区生态环境变化分析研究[J]. 长江流域资源与环境, 2015, 24(3): 440-446.[LIU Y S, GAO W W, HOU K, et al. Analysis of ecological environment change on watershed of the middle route of South-North water diversion project[J]. Resources and Environment in the Yangtze Basin, 2015, 24(3): 440-446.] [13] 王书航, 姜霞, 钟立香, 等. 巢湖沉积物不同形态氮季节性赋存特征[J]. 环境科学, 2010, 31(4): 946-953.[WANG S H, JIANG X, ZHONG L X, et al. Seasonal occurrence characteristics of different forms of nitrogen in the sediments of Chaohu Lake[J]. Environmental Science, 2010, 31(4): 946-953.] [14] 刘波, 周锋, 王国祥, 等. 沉积物氮形态与测定方法研究进展[J]. 生态学报, 2011, 31(22): 6947-6958.[LIU B, ZHOU F, WANG G X, et al. Research progress on forms of nitrogen and determination in the sediments[J]. Acta Ecologica Sinica, 2011, 31(22): 6947-6958.] [15] YE X, WANG A J, CHEN J. Distribution and deposition characteristics of carbon and nitrogen in sediments in a semi-closed bay area, southeast China[J]. Continental Shelf Research, 2014, 90: 133-141. [16] KEMP A L W, MUDROCHOVA A. Distribution and forms of nitrogen in a Lake Ontario sediment core[J]. Limnology and Oceanography, 1972, 17(6): 855-867. [17] MOSCHONAS G, GOWEN R J, STEWART B M, et al. Nitrogen dynamics in the Irish Sea and adjacent shelf waters: Anexploration of dissolved organic nitrogen[J]. Estuarine, Coastal and Shelf Science, 2015, 164: 276-287. [18] DE LANGE G J. Distribution of exchangeable, fixed, organic and total nitrogen in interbedded turbiditic/pelagic sediments of the Madeira Abyssal Plain, eastern North Atlantic[J]. Marine Geology, 1992, 109(1/2): 95-114. [19] LI Z Y, JIA G D. Separation of total nitrogen from sediments into organic and inorganic formsfor isotopic analysis[J]. Organic Geochemistry, 2011, 42(3): 296-299. [20] STEVENSON F J. Organic forms of soil nitrogen[M]//STEVENSON F J. Humus Chemistry: Genesis, Composition, Reactions. 2nd ed. New York: Wiley, 1997: 55-119. [21] JONES D L, SHANNON D, JUNVEE-FORTUNE T, et al. Plant capture of free amino acids is maximized under high soil amino acid concentrations[J]. Soil Biology and Biochemistry, 2005, 37(1): 179-181. [22] SCHULTEN H R. The three-dimensional structure of humic substances and soil organic matter studied by computational analytical chemistry[J]. Fresenius' Journal of Analytical Chemistry, 1995, 351(1): 62-73. [23] LETSCHER R T, HANSELL D A, KADKO D, et al. Dissolved organic nitrogen dynamics in the Arctic Ocean[J]. Marine Chemistry, 2013, 148: 1-9. [24] ZEHR J P, PAULSEN S G, AXLER R P, et al. Dynamics of dissolved organic nitrogen in subalpine Castle Lake, California[J]. Hydrobiologia, 1988, 157(1): 33-45. [25] 谭香, 夏小玲, 程晓莉, 等. 丹江口水库浮游植物群落时空动态及其多样性指数[J]. 环境科学, 2011, 32(10): 2875-2882.[TAN X, XIA X L, CHENG X L, et al. Temporal and spatial pattern of phytoplankton community and its biodiversity indices in the Danjiangkou Reservoir[J]. Environmental Science, 2011, 32(10): 2875-2882.] [26] 雷沛, 张洪, 单保庆. 丹江口水库典型入库支流氮磷动态特征研究[J]. 环境科学, 2012, 33(9): 3038-3045.[LEI P, ZHANG H, SHAN B Q. Dynamic characteristics of nitrogen and phosphorus in the representative input tributaries of Danjiangkou Reservoir[J]. Environmental Science, 2012, 33(9): 3038-3045.] [27] 涂安国, 尹炜, 陈德强, 等. 丹江口库区典型小流域地表径流氮素动态变化[J]. 长江流域资源与环境, 2010, 19(8): 926-932.[TU A G, YIN W, CHEN D Q, et al. Dynamic change research of nitrogen loss from surface runoff in the typical small watershed of Danjiangkou reservoir area[J]. Resources and Environment in the Yangtza Basin, 2010, 19(8): 926-932.] [28] 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.[MENG Y Y, WANG S R, JIAO L X, et al. Characteristics of nitrogen pollution and the potential mineralization in surface sediments of Dianchi Lake[J]. Environmental Science, 2015, 36(2): 471-480.] [29] 焦立新. 浅水湖泊表层沉积物氮形态特征及在生物地球化学循环中的功能[D]. 呼和浩特: 内蒙古农业大学硕士学位论文, 2007.[JIAO L X. Nitrogen forms characteristic in the sediments from the Shallow Lakes and functions in biogeochemical cycling[D]. Hohhot: Master Dissertation of Inner Mongolia Agricultural University, 2007.] |
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