Optical Properties of Water Body in Xiaojiang River Backwater Area,Three Gorges Reservoir,2008

摘要：

To discuss optical properties of water body in Xiaojiang river backwater area after the early impounding stage of the Three Gorges Reservoir (TGR),the correlations between visible light attenuation coefficients (Kd(PAR)) and Secchi Disc transparency (SD),total particulate matters (TPM),dissolved organic carbon (DOC) and chlorophyll-a (Chla) were investigated,and spatiotemporal variations of Kd(PAR) and its influencing factors were analyzed.In the study area,there are no significant spatial variations of Kd(PAR),but the seasonal changes are obvious,with the highest value in winter and the lowest value in summer.Statistics analysis suggests that there are strong correlations between Kd(PAR) and SD,TPM,TIM,the value of R2 are 0.7791,0.7285,and 0.7637,respectively.The relationship between Kd(PAR) and DOC is less significant(R2=0.1289).However,the correlation between Kd(PAR) and Chla was weak (R2=0.006).Further study shows that,the impact of total particulate matters on the optical properties of water body is as a result of both seasonal impoundment of the TGR and particular hydrological condition of Xiaojiang river basin.

关键词： Three Gorge Reservoir (TGR) Xiaojiang river backwater area visible light attenuation coefficient Secchi Disc transparency total inorganic particulate matters dissolved organic carbon water level and water flow

作者: Fang Fang Hong Zhou Jing-song Guo Zhe Li Yong-bo Chen Zhi-yu Sun

作者单位: Key Laboratory of Three Gorges Reservoir Regions Eco-Environment of Ministry of Education,Chongqing China Three Gorges Project Corporation,Yichang,Hubei,443002,China

会议类型: 国际会议

会议名称: 2010 International Conference of Environment Materials and Environment Management(2010年环境材料与环境管理国际学术会议 EMEM 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 840-846

在线出版日期: 2010-07-24（万方平台首次上网日期，不代表论文的发表时间）