东平湖表层沉积物粒度空间分布特征及影响因素
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摘要
东平湖是黄河下游地区最大的蓄洪湖泊,大汶河是其唯一入湖河流。对东平湖33个表层沉积物样品进行粒度分析,探讨了东平湖表层沉积物粒度组成及空间分布特征。研究结果表明,受物质来源和流域降雨量变化影响,东平湖表层沉积物粒度各组分及分布特征具有明显的空间差异性。东平湖表层沉积物粒度组分以粉砂为主,平均含量达79.71%;黏土次之,占16.76%;砂含量最少,仅占3.51%。平均粒径、砂、黏土分别呈舌状自东南向西北方向延伸,粒度分异作用明显。东平湖现代表层沉积物主要来自大汶河搬运与一定比重的湖岸侵蚀崩塌产物,表层沉积物来源的确定有待于今后进一步结合物源示踪分析来准确判定。该研究对于深入认识东平湖地区水动力条件及物质输入状况、入湖污染物的迁移扩散规律等均具有重要意义。
Dongping lake is the largest flood storage at the lower reaches of the Yellow River, and the Dawen River is the only river flowing into it. Based on the analyses of 33 surface sediments, grain-size composition and distribution characteristics of Dongping Lake were described. The results showed that the sediment source and precipitation controlling the composition and spatial distribution of grain size changed in the lake. Compositions of the surface sediments of Dongping Lake were mainly silt(in average 79.71%); clay(16.76%) and sand(3.51%). The mean grain size, and the contents of sand and clay were in obvious tongue shapes from southeast to northwest, the differentiation process is notable Dongping Lake received a large quantity of sediment not only from Dawen River, but also from the shore of lake erosion material. Confirmation of sources of the surface sediments of Dongping Lake needs to be further combined with the provenance tracer analysis. The results could be of great importance in further understanding water dynamic and sediment input conditions, mixing and dispersion of pollutants in DongPing Lake.
Dongping lake is the largest flood storage at the lower reaches of the Yellow River, and the Dawen River is the only river flowing into it. Based on the analyses of 33 surface sediments, grain-size composition and distribution characteristics of Dongping Lake were described. The results showed that the sediment source and precipitation controlling the composition and spatial distribution of grain size changed in the lake. Compositions of the surface sediments of Dongping Lake were mainly silt(in average 79.71%); clay(16.76%) and sand(3.51%). The mean grain size, and the contents of sand and clay were in obvious tongue shapes from southeast to northwest, the differentiation process is notable Dongping Lake received a large quantity of sediment not only from Dawen River, but also from the shore of lake erosion material. Confirmation of sources of the surface sediments of Dongping Lake needs to be further combined with the provenance tracer analysis. The results could be of great importance in further understanding water dynamic and sediment input conditions, mixing and dispersion of pollutants in DongPing Lake.
引文
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[3] 吴汉, 常凤琴, 张虎才, 等. 泸沽湖表层沉积物粒度空间分布特征及其影响因素[J]. 沉积学报, 2016, 34(4): 679-687.
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[17] 陈影影, 陈诗越, 姚敏, 等. 近百年来东平湖沉积通量变化与环境[J]. 沉积学报, 2010, 28(4) : 783-789.
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[19] Chen YY, Chen S Y, Yu S Y, et al. Distribution and speciation of phosphorus in sediments of Dongping Lake, North China[J]. Environmental Earth Sciences, 2014, 72(8): 3173 3182.
[20] 罗文磊, 田娟, 侯战方, 等. 东平湖表层沉积物重金属富集特征及其污染研究[J]. 环境工程, 2016, 34(4): 146-150.
[21] 罗文磊, 田娟, 张菊, 等. 东平湖冬季水体营养盐污染特征及水质评价[J]. 海洋湖沼通报, 2016, (2): 8-16.
[22] 陈诗越, 刘双爽, 杨丽伟, 等. 东平湖硅藻群落结构特征及其与水环境的关系[J]. 江苏师范大学学报(自然科学版), 2014, 32(2): 1-6.]
[23] 东平湖志编纂委员会. 东平湖志[M]. 济南: 山东大学出版社, 1993.
[24] 陈诗越, 王苏民, 陈影影, 等. 东平湖沉积物210Pb、137Cs垂直分布及年代学意义[J]. 第四纪研究, 2009, 29(5): 981-987.
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[28] 郭晓阳, 王维, 王国良, 等. 季风边缘区湖泊表层沉积物粒度组分分布特征与影响因素[J]. 地理研究, 2016, 35(4): 677-691.
[29] 范颖, 潘林, 陈诗越. 历史时期黄河下游洪泛与河道变迁[J]. 江苏师范大学学报(自然科学版), 2016, 34(4): 6-10.
[30] 张春玲, 王文民, 程慧, 等. 大汶河大汶口(临汶)水文站历年洪水特性分析[J]. 水利科技与经济, 2017, 23(3): 50-54.
[2] 刘晓清, 王亚萍, 张振文, 等. 陕西红碱淖湖底表层沉积物粒度特征[J]. 地球环境学报, 2013, 4(4): 1371-1378.
[3] 吴汉, 常凤琴, 张虎才, 等. 泸沽湖表层沉积物粒度空间分布特征及其影响因素[J]. 沉积学报, 2016, 34(4): 679-687.
[4] 陈敬安, 万国江, 张峰, 等. 不同时间尺度下的湖泊沉积物环境记录—以沉积物粒度为例[J]. 中国科学(D辑), 2003, 33(6): 563-568.
[5] 陈敬安, 万国江. 云南洱海沉积物粒度组成及其环境意义辨识[J]. 矿物学报, 1999, 19(2): 175-182.
[6] Liu X Q, Herzschuh U, Shen J, et al. Holocene environmental and climatic changes inferred from Wulungu Lake in northern Xinjiang, China[J]. Quaternary Research, 2008, 70(3): 412-425.
[7] 孙千里, 周杰, 肖举乐. 岱海沉积物粒度特征及其古环境意义[J]. 海洋地质与第四纪地质, 2001, 21(1): 93-95.
[8] Peng Y J, Xiao J L, Nakamura T, et al. Holocene East Asian monsoonal precipitation pattern revealed by grain-size distribution of core sediments of Daihai Lake in Inner Mongolia of north-central China[J]. Earth and Planetary Science Letters, 2005, 233(3): 467-479.
[9] 史小丽, 秦伯强. 近百年来长江中游网湖沉积物粒度特征及其环境意义[J]. 海洋地质与第四纪地质, 2009, 29(2): 117-122.
[10] 肖舜, 陈发虎, 强明瑞, 等. 青海苏干湖表层沉积物粒度分布模式与大气粉尘记录[J]. 地理学报, 2007, 62 (11): 35-46.
[11] Vandenberghe J. Grain size of fine-grained windblown sediment: A powerful proxy for process identification[J]. Earth-Science Reviews, 2013, 121: 18-30.
[12] Liu X X, Vandenberghe J, An Z S, et al. Grain size of Lake Qinghai sediments: implications for riverine input and Holocene monsoon variability[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2016, 449: 41 51.
[13]Gao S, Collins M. Net sediment transport patterns inferred from grain-size trends, based upon definition of "transport vectors"[J]. Sedimentary Geology, 1992, 81(1-2): 47 60.
[14] 薛允传, 贾建军, 高抒. 山东月湖的沉积物分布特征及搬运趋势[J]. 地理研究, 2002, 21(6): 707-714.
[15] Cheng P, Gao S, Bokuniewicz H. Net sediment transport patterns over the Bohai Strait based on grain size trend analysis[J]. Estuarine, Coastal and Shelf Science, 2004, 60(2): 203-212.
[16] 喻宗仁, 窦素珍, 赵培才, 等. 山东东平湖的变迁与黄河改道的关系[J]. 古地理学报, 2004, 6(4): 469-479.
[17] 陈影影, 陈诗越, 姚敏, 等. 近百年来东平湖沉积通量变化与环境[J]. 沉积学报, 2010, 28(4) : 783-789.
[18] Chen Y Y, Chen S Y, Liu J Z, et al. Environmental evolution and hydrodynamic process of Dongping Lake in Shandong Province, China, over the past 150 years[J]. Environmental Earth Sciences, 2013, 68(1): 69 75.
[19] Chen YY, Chen S Y, Yu S Y, et al. Distribution and speciation of phosphorus in sediments of Dongping Lake, North China[J]. Environmental Earth Sciences, 2014, 72(8): 3173 3182.
[20] 罗文磊, 田娟, 侯战方, 等. 东平湖表层沉积物重金属富集特征及其污染研究[J]. 环境工程, 2016, 34(4): 146-150.
[21] 罗文磊, 田娟, 张菊, 等. 东平湖冬季水体营养盐污染特征及水质评价[J]. 海洋湖沼通报, 2016, (2): 8-16.
[22] 陈诗越, 刘双爽, 杨丽伟, 等. 东平湖硅藻群落结构特征及其与水环境的关系[J]. 江苏师范大学学报(自然科学版), 2014, 32(2): 1-6.]
[23] 东平湖志编纂委员会. 东平湖志[M]. 济南: 山东大学出版社, 1993.
[24] 陈诗越, 王苏民, 陈影影, 等. 东平湖沉积物210Pb、137Cs垂直分布及年代学意义[J]. 第四纪研究, 2009, 29(5): 981-987.
[25] Folk R L,Ward W C.Brazos River bar:a study in the significance of grain size parameters[J].Journal of Sedimentary Petrology, 1957,27(1):3-26.
[26] Blott S J,Pye K.GRADISTAT:a grain size distribution and statistics package for the analysis of unconsolidated sediments[J]. Earth Surface Processes and Landforms,2001,26(11):1237-1248.
[27] 姜在兴. 沉积学[J].北京: 石油工业出版社, 2003.
[28] 郭晓阳, 王维, 王国良, 等. 季风边缘区湖泊表层沉积物粒度组分分布特征与影响因素[J]. 地理研究, 2016, 35(4): 677-691.
[29] 范颖, 潘林, 陈诗越. 历史时期黄河下游洪泛与河道变迁[J]. 江苏师范大学学报(自然科学版), 2016, 34(4): 6-10.
[30] 张春玲, 王文民, 程慧, 等. 大汶河大汶口(临汶)水文站历年洪水特性分析[J]. 水利科技与经济, 2017, 23(3): 50-54.