RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2005, Vol. 14 >> Issue (4): 460-464.

• Contents • Previous Articles     Next Articles

SPECTRUM ANALYSIS OF FLOCS DIAMETER IN THE CHANGJIANG ESTUARY

CHENG Jiang(1), HE Qing(2), WANG Yuan-ye(2), LIU Hong(2), XIA Xiao-ming(3)   

  • Received:1900-01-01 Revised:1900-01-01 Online:2005-07-20
  • Contact: CHENG Jiang

Abstract: The temporal change in flocs size of fine suspended sediments was measured in Xuliujin of the Changjiang Estuary in June of 2003, by using an in situ laser diffraction particle sizer, the laser in situ scattering and transmissomerty100(LISST100). The spectrum analysis was applied to analyze the fluctuation of flocs diameter during the spring tide and the neap tide. The results showed that the quasiperiod of flocs diameter in the surface water during the spring tide included 7.86 h, 3.93 h and 2.95 h; those in the same water during the neap tide included 8.38 h and 3.14 h; those in the bottom water during the spring tide included 3.33 h and 1.19 h. The analysis of the quasiperiods of flocs diameter showed that flocs diameter was responded to the period of the current velocity, which was fluctuating through the tidal periods. The periodical varying current velocity resulted in turbulent shear changing periodically, which was generated by the current velocity. The periodical turbulent shear changing affected the flocs diameter, so the quasiperiods of flocs diameter was close to that of current velocity.

Key words: spectrum analysis, grain size, flocs, LISST, Changjiang Estuary, Xuliujin

[1] ZHANG Zhao, LI Zhan-hai, ZHANG Guo-an, WANG Zhi-gang, YAO Jun. WATER AND SUSPENDED SEDIMENT TRANSPORTS IN THE MIDDLE REACH OF THE SOUTH PASSAGE IN THE CHANGJIANG ESTUARY DURING THE DRY SEASON [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2016, 25(12): 1832-1841.
[2] ZHANG Wen-tong, PANG Jiang-li, ZHOU Ya-li, HUANG Chun-chang, ZHA Xiao-chun, CUI Tian-yu. GRAIN SIZE DISTRIBUTION AND ITS SIGNIFICATION IN TUOJIAWAN PROFILE, HUBEI PROVINCE [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2016, 25(12): 1910-1916.
[3] CHEN Xiqing,LV Xixi,YAN Yixin,TONG Chaofeng,SONG Zhiyao, DOU Xiping, LI Jianyong,TIAN Lei. LONGTERM CHANGES AND CAUSES OF THE GRAIN SIZE OF BOTTOM SEDIMENTS AT LANDWARD LIMIT OF THE YANGTZE ESTUARY [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2008, 17(4): 598-598.
[4] ZHONG Yang-kang,ZHOU Hui, SHI Wen-yu, ZHOU Xiao, ZHOU Li-chen, WANG Tian-hou. SURVEY ON SHORE BIRDS COMMUNITY AND THEIR HABITAT IN SHANGHAI TIDAL FLAT IN SPRING [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2006, 15(3): 378-383.
[5] DAI Zhi-jun, CHEN Ji-yu, CHENG He-qin, LI Jiu-fa. SEDIMENT CHARACTERISTICS AND TRANSPORT PATTERNS IN NANHUI JOINT AREA [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2005, 14(6): 735-739.
[6] Xu Zhao-li; Shen Xin-qiang. ZOOPLANKTON BIORMASS AND ITS VARIATION IN WATER NEAR CHANGJIANG ESTUARY [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2005, 14(3): 282-286.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Chong-ming, HUANG Zhen-li. STUDY ON THE POLLUTANT LOADS INTO THREE GORGES RESERVOIR (Ⅱ)——POLLUTANT LOAD PREDICTIONS AFTER IMPOUNDMENT[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2006, 15(1): 97 -106 .
[2] ZENG Huiqing. IMPACT OF CLIMATIC VARIATION ON NET PRIMARYPRODUCTIVITY OF NATURAL VEGETATION IN JIANGXI IN RECENT 40 YEARS[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2008, 17(2): 227 .
[3] LI Jia, LI Siyue, TAN Xiang, ZHANG Quanfa. WATER QUALITY APPRAISAL ALONG THE WATER CONVEYANCE SYSTEM OF THE MIDDLE ROUTE OF THE SOUTH TO NORTH WATER TRANSFER PROJECT, CHINA[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2008, 17(5): 693 .
[4] ZOU Limin, WANG Chao, FENG Shilong. POTENTIAL BIOLOGICAL TOXICITY ASSESSMENT ON HEAVY METAL POLLUTION IN SURFACE SEDIMENTS OF XUANWU LAK[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2008, 17(2): 280 .
[5] XU Zu-xin, YE Jian-feng. APPLICATION OF PRETANK TECHNOLOGY IN THE NONPOINT POLLUTION CONTROL OF HEADWATER AREA OF RESERVOIR[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2005, 14(6): 792 -795 .
[6] CHEN Shuang,WANG Jin,. LEVEL OF URBANIZATION AND ASSESSMENT OF IMPACTS OF IMMIGRATORY POPULATION IN THE TAIHU WATERSHED[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2004, 13(6): 524 -529 .
[7] ZHANG Qingqing,ZHANG Shirong,LITing,ZHANG Lin,LIN Xiaoli,. ON LANDSCAPE PATTERN CHANGES AND THEIR INFLUENCING FACTORS BASED ON KINDS OF DATA—A CASE OF YIDONG SECTION,LIUSHA RIVER[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2006, 15(Sup1): 125 -130 .
[8] ZHOU Guo-zhong,FENG Hai-xia. RESEARCH ON THE REGIONAL DIFFERENCES OF TOURISM RESOURCES OF ZHEJIANG PROVINCE[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2006, 15(2): 157 -163 .
[9] ZHANG Wenguang, HU Yuanman,LIU Miao, YANG Zhaoping, CHANG Yu,LI Xiuzhen,YANG Meng, WEN Qingcun,. ESTIMATION OF THE GAINS AND LOSSES OF ECOSYSTEM SERVICE VALUES BASED ON LAND USE/COVERAGE CHANGE —A CASE OF UPPER REACHES OF MINJIANG RIVER[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2007, 16(6): 821 .
[10] LI Guixiang,MENG Guangtao,FANG Xiangjing,GUO Liqun,CHAI Yong,HE Liping,ZHANG Zhenghai. DISTRIBUTION OF MAJOR FOREST VEGETATION TYPES OF JINSHAJIANG RIVER BASIN IN YUNNAN PROVINCE[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2008, 17(1): 51 .
Copyright © RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, All Rights Reserved.
Powered by Beijing Magtech Co. Ltd