[1]刘冬雪,刘丽敏,曾燕燕.钱塘江河口环境要素空间分布特征的初步研究[J].浙江水利科技,2015,(01):001-4.[doi:10.13641/j.cnki.33-1162/tv.2015.01.001]
 LIU Dong-xue,LIU Li-min,ZENG Yan-yan.Preliminary Study on Spatial Distribution of Environmental Elements in Qiantang River Estuary[J].Zhejiang Hydrotechnics,2015,(01):001-4.[doi:10.13641/j.cnki.33-1162/tv.2015.01.001]
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钱塘江河口环境要素空间分布特征的初步研究
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《浙江水利科技》[ISSN:1008-701X/CN:33-1080/TV]

卷:
期数:
2015年01期
页码:
001-4
栏目:
出版日期:
2015-01-25

文章信息/Info

Title:
Preliminary Study on Spatial Distribution of Environmental Elements in Qiantang River Estuary
作者:
刘冬雪 刘丽敏 曾燕燕
浙江省河海测绘院, 浙江 杭州 310008
Author(s):
LIU Dong-xue LIU Li-min ZENG Yan-yan
Zhejiang Surveying Institute of Estuary and Coast, Hangzhou 310008, Zhejiang, China
关键词:
钱塘江河口环境要素空间分布特征
Keywords:
Qiantang river estuaryenvironmental elementsspatial distributioncharacteristics
分类号:
TV213.4
DOI:
10.13641/j.cnki.33-1162/tv.2015.01.001
摘要:
为了解钱塘江河口环境要素的空间分布特征,对钱塘江河口平均水体的透明度、DO、pH、盐度及表层沉积物粒度特征进行了监测和分析.研究范围覆盖整个钱塘江河口,共布设25条断面54个测点及采样点.研究表明:水体透明度在0.1~1.4 m,中、下游水体透明度低于上游;DO低值区多集中在富阳至浦阳江一段,其中富阳断面DO值最低(平均值2.0 mg/L);盐度变化范围为0.050‰~28.240‰,总体上呈现从上游、中游至下游逐渐增大的趋势,其中,盐度值从七堡到顺坝断面以及从奉贤到镇海断面有2个明显突越;钱塘江河口上游和下游表层沉积物主要成分为粉砂,中间段主要成分为粉砂和砂,表层沉积物中粒度小于0.063 mm的组分在钱塘江河口中所占比例依次为:下游>上游>中游;钱塘江河口平均水体中透明度、DO和pH这3项环境要素之间存在显著相关性.
Abstract:
In order to understand spatial distribution of environmental elements in the Qiantang river estuary, this paper makes a monitoring and analysis of transparency, DO, PH, salinity and surface sediment granularity characteristic of average water in the Qiantang river estuary.The whole Qiantang river estuary was studied in this paper, which including 25 section, 54 measuring points and sampling points.Studies have shown that the water transparency of middle and lower reaches is lower than the upstream, which is in 0.1~1.4 m.Lower DO areas are concentrated in Fuyang to Puyangjiang, among them, the DO of Fuyang section is the lowest(average 2.0 mg/L).Salinity ranges from 0.050 ‰ to 28.240‰, it generally shows a gradually increasing trend from upstream, midstream to downstream.While two obvious bursting point of salinity occur in the following two sections which are from Qibao to Shunba and from Fengxian to Zhenhai.The main component of the surface sediments is silt in the Qiantang river upstream and downstream, and silt and sand are the main component in the middle section.The largest proportion of which the granularity less than 0.063 mm in the surface sediments of the Qiantang river estuary is in an order of downstream > upstream > midstream.In addition, there is a significant correlation among transparency, DO and pH of the average water in the Qiantang river estuary.

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备注/Memo

备注/Memo:
收稿日期:2014-11-14;改回日期:。
基金项目:水利部公益性行业科研专项(201101056);浙江省重点科技创新团队计划(2010R50035).
作者简介:刘冬雪(1981-),女,工程师,硕士,主要从事为水文、水环境的研究.E-mail:dongxue-1026@163.com
更新日期/Last Update: 1900-01-01