SPATIAL AND TEMPORAL VARIATION IN SEDIMENT DISTRIBUTION IN THE ABANDONED YELLOW RIVER DELTA OF NORTH JIANGSU
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摘要: 基于苏北废黄河三角洲近岸冬夏两季的表层沉积物粒度参数分析结果,研究了沉积物的时空变化特征。结果表明,沉积物分布具有显著的时空变化特征:空间上由岸向海、由北侧至南侧,沉积物粒度呈变粗的趋势;时间上,沉积物粒径冬季粗于夏季。沉积物分选普遍较差,偏态为正偏,峰态尖锐。受季节性风的影响,冬季沉积动力环境比夏季复杂,沉积物粒度参数变化幅度较夏季大,冬季样品粒度参数等值线梯度明显大于夏季。在粒级-标准偏差曲线上,高峰值在52.55~88.39 μm,为敏感粒级。研究区在潮流和季风驱动的风浪作用下,沉积环境具有波-流联合作用复杂的特点。Abstract: Grain size analysis for winter and summer sediments collected from the abandoned Yellow River delta of northern Jiangsu was made for study of the spatial and temporal distribution of grain-size parameters in different seasons. Results show that sediment particle size becomes coarsen form coast to offshore and form north to south in the study area spatially, and is coarser in winter than in summer temporally. Generally, the sediment is poorly sorted, with a positive skewness and sharp kurtosis. Since the effect of wind is different in seasons, the grain-size parameters are more complex in winter times, and all the parameters vary in a broad range. Laterally, the gradients of grain-size parameters for the samples collected in winter times are obviously larger than those from summer samples. The sediment with a peak value around 52.55~88.39 μm was identified as a sensitive size to climatic change. Due to the joint action of wave and tide under the driving of monsoon, the study area is characterized by complex dynamics.
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[1] Liu J P, Li A C, Xu K H,et al. Sedimentary features of the Yangtze River-derived along-shelf clinoform deposit in the East China Sea[J]. Continental Shelf Research, 2006,26:2141-2156.
[2] Pedrerons R, Howa H L, Michel C. Application of grain size trend analysis for the determination of sediment transport pathways in intertidal area[J]. Marine Geology,1996,135:35-39.
[3] 张忍顺. 苏北黄河三角洲及滨海平原的成陆过程[J]. 地理学报, 1984, 39(2):173-184. [ZHANG Renshun. Land-forming history of the Huanghe River delta and coastal plain of north Jiangsu[J]. Acta Geographica Sinice, 1984, 39(2):173-184.]
[4] 王艳红. 废黄河三角洲海岸侵蚀过程中的岸滩变异与整体防护研究[D]. 南京师范大学博士学位论文, 2006.[WANG Yanhong. Study of variation features during coastal erosion processes on the abandoned Huanghe River Delta and integrated protection measures[D]. Dissertation for the degree of Doctor of Nanjing Normal University, 2006.] [5] 高抒. 废黄河口海岸侵蚀与对策[J]. 海岸工程, 1989, 8(1):37-42. [GAO Shu. Erosion of old Yellow River delta in northern Jiangsu and coast protection[J]. Coastal Engineering, 1989, 8(1):37-42.]
[6] 范恩梅, 陈沈良, 张国安. 连云港近岸海域沉积物特征与沉积环境[J]. 海洋地质与第四纪地质, 2009, 29(2):33-40. [FAN Enmei, CHEN Shenliang, ZHANG Guoan. Sediment characteristics and sedimentary environment[J]. Marine Geology and Quaternary Geology, 2009, 29(2):33-40.]
[7] 彭俊, 陈沈良. 连云港近岸海域沉积物特征与沉积环境分析[J]. 海洋科学进展, 2010, 28(4):445-454. [PENG Jun, CHEN Shenliang. Analysis on sedimentary characteristics and environments in nearshore of Lianyungang[J]. Advances in Marine Science, 2010, 28(4):445-454.]
[8] 陆勤, 陈沈良. 废黄河三角洲海域表层沉积物分布特征[J]. 上海国土资源, 2011,32(1):14-19. [LU Qin,CHEN Shenliang.Distribution of surface sediments on the subaqueous delta of the abandoned Yellow River Delta[J].Shanghai Land & Resources, 2011,32(1):14-19.]
[9] Chen Kefeng, Wang Yanhong, Lu Peidong,et al. Effects of coastline changes on tide system of Yellow Sea off Jiangsu Coast, China[J]. China Ocean Engineering, 2009, 23(4):741-750.
[10] 陈小英,陈沈良,刘勇胜. 黄河三角洲滨海区沉积物的分异特征与规律[J]. 沉积学报, 2006, 24(5):714-721. [CHEN Xiaoying, CHEN Shenliang, LIU Yongsheng. Sediment differentiation along nearshore zone of the Yellow River delta[J]. Acta Sedimentologica Sinica, 2006, 24(5):714-721.]
[11] Chen X Y, Chen S L, Dong P,et al. Temporal and spatial evolution of the coastal profiles along the Yellow River Delta over last three decades[J]. Goejournal, 2008,71(2-3):185-199.
[12] McManus J. Grain size determination and interpretation[M]. Techniques in Sedimentology, Oxford:Blackwell,1988:63-85.
[13] Shepard F P. Nomenclature based on sand-silt-clay ratios[J]. Journal of Sedimentary Petrology, 1954,24:151-158.
[14] 陆培东. 江苏滨海港10万吨级海港工程海岸稳定性和泥沙研究[R]. 南京水利科学研究院研究报告, 2007.[LU Peidong. 100 thousand ton harbour engineering coastal stability and sediment research of Jiangsu binhai port[R]. Nanjing hydraulic academy of sciences research report, 2007.] [15] 韦钦胜, 于志刚, 冉祥滨, 等. 黄海西部沿岸流系特征分析及其对物质输运的影响[J]. 地球科学进展, 2011, 26(2):145-156. [WEI Qinsheng, YU Zhigang, RAN Xiangbin,et al. Characteristics of the western coastal current of the Yellow Sea and its impacts on material transportation[J]. Advances in Earth Science, 2011, 26(2):145-156.]
[16] 林锡藩, 刘光章. 黄海西侧沿岸水及其沿岸流的初步探讨[J]. 海洋研究, 1979, 3:43-54.[LIN Xipan, LIU Guangzhang. Apreliminary discussion of the Yellow Sea western coastal water and coastal current[J]. Marine Research, 1979 , 3:43-54.]
[17] Xiang Rong, Yang Zuosheng, Yoshiki Saito, et al. East Asia Winter Monsoon changes inferred from environmentally sensitive grain-size component records during the last 2300 years in mud area southwest off Cheju Island, ECS[J]. Science in China(Series D), 2006, 49(6):604-614.
[18] Wang X, Ke X, Grain-size characteristics of the extant tidal flat sediments along the Jiangsu coast, China[J]. Sedimentary Geology, 1997,112:105-122.
[19] 张旸, 陈沈良. 苏北废黄河三角洲海岸时空演变遥感分析[J]. 海洋科学进展, 2009, 27(2):166-175. [ZHANG Yang,CHEN Shenliang. Remote sensing analysis of spatial and temporal changes of the coastal area in the abandoned Huanghe River Delta in the northern Jiangsu Province[J]. Advances in Marine Science, 2009, 27(2):166-175.]
[20] Miller M C, Mc Cave I N, Komar P D. Threshold of sediment motion under unidirectional currents[J]. Sedimentology, 1977,24:507-527.]
[21] 邢飞, 汪亚平, 高建华, 等. 江苏近岸海域悬沙浓度的时空分布特征[J]. 海洋与湖沼, 2010, 41(3):159-468. [XING Fei, WANG YaPing,GAO Jianhua, et al. Seasonal Distributions of the Concentrations of Suspended Sediment Along Jiangsu Coastal sea[J]. Oceanologia Et Limnlolgia Sinica, 2010, 41(3):159-468.]
[22] Zhang R S, Suspended sediment transport processes on tidal mud flat in Jiangsu Province, China[J]. East Coast and Shelf Science, 1992,35:225-233.
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