alluvial deposits是什么意思

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The main problems discussed are pollutant transport between sediment and water; sorption of pollutants to particles in water column;sediment related water quality,health and management.

本文综述了沉积物／水之间的相互作用的研究进展，主要讨论了污染物在沉积物／水界面间的物质传输：水体中污染物在颗粒物上的吸附作用；与沉积物相关的水质、健康和管理等方面的问

Mercury,arsenic and antimony are common items in soil and river sediment samples in environment monitoring.

Hg、As、Sb是土壤和河流沉积物的常规测定项目。

The Korean r iver sediments have much lower TIC,C a and carbona te contents than Chinese river sediments,whereas the Changjiang sediment is cha racterized by hi gh Ti content and the Huanghe sediment by h igh Ca,Na and car bonate contents.

韩国河流沉积物中Ca及碳酸盐含量显著低于长江和黄河,而其他元素含量则在二者之间;黄河沉积物以总无机碳(TIC)、Na和Ca含量高为特征,而长江沉积物则显著富集Ti和P。

In terms of the geochemical distribution and seasonal variation of N, P and trace heavymetals in the sediments, Brisbane, Australia, this paper discusses some research methods applica-ble to environmental geochemistry of river sediments, and the mechanism of river pollution, pro-viding the important scientific basis for river evaluation and environmental arrangement control.

本文通过对澳洲普洛斯本河现代沉积物的粒度、营养元素和微量重金属元素地球化学分布及其季节性差异的研究，探索了河流沉积物环境地球化学的研究方法，阐述了河流现代沉积物的污染现状和规律，为河流的评价和环境治理等提供了重要的科学依据。

By analyzing the mercury contained in the waters,soil,propagations and sediments near the gold mine,on the upper Songhua River,which is along the east of Jilin Province,we have founded that the mercury pollution in river sediments was very serious.

采样分析了吉林省东部松花江上游金矿开采区及其附近水、土壤、动植物及河流沉积物样品中汞的含量,发现河流沉积物中汞的污染相当严重;受其影响当地的植物和两栖类动物———中国林蛙体内总汞和甲基汞含量也明显高于对照组。

There is a variety of environmental information contained in the river sediments.

河流沉积物中蕴含丰富的环境信息。

BACKGROUND VALUES OF METAL ELEMENTS IN RIVER SEDIMENTS WITHIN THE BEIJING AREA

北京地区河流沉积物的金属元素背景值研究

River Sediments in Gaoling County of Xi an Area, Shaanxi Province and Palaeoevirormental Research;

西安高陵耿镇河流沉积物与古环境研究

Kinetics of Adsorption of Pb~(2+) onto Small River Sediment

城郊小河流沉积物吸附Pb~(2+)的动力学过程

Pollution situation and assessment of heavy metals in fluvial sediments in suburb of Taicang

太仓郊区河流沉积物重金属污染现状及评价

A river kind of sediment Certified Reference Material( CRM) based on natural-matrix for environmental radioactivity has been developed.

研制出一种天然基质的河流沉积物环境放射性标准物质。

Potential Biological Toxicity Assessment on the Pollution of Heavy Metals in Fluvial Sediment in Chongqing

重庆市城镇河流沉积物重金属污染的潜在生物毒性评价

River sediments gradually silted the harbor.

河流的沉积物逐渐使港口淤积

Sedimentological Studies on Holocene Paleoflood Slack Water Deposits in the Drainage Basin of Yiluo River;

伊洛河全新世古洪水平流沉积物的沉积学研究

Rivers and torrents carried great loads of sediment out to sea.

河流挟着大量沉积物奔流入海。

Studies on Persistent Organic Pollutants in the Surface Sediments of Liao River Basin;

辽河流域沉积物中持久性有机污染物的研究

Relationship among Modern Pollen Spectra, Vegetation and Sedimentary Environment from the Drainage of the Red River, Vietnam

越南红河流域表层沉积物花粉组合与植被、沉积环境关系探讨

An Investigation on Thermoluminescence Dating of the Step Terrace Sediments of Guangdong Coastal Rivers

广东沿海河流阶地沉积物热释光年龄测定研究

Study of Heavy Meatal Pollution of the Sediment in Beiyunhe River in Beijing

北运河流域沉积物重金属污染状况分析

Release of Organochlorine Pesticides from Sediments in Haihe River Mainstream

海河干流沉积物中有机氯农药的释放行为

DDTs Transport Between Sediment and Water in the Mainstream of Haihe River in the Urban Area

DDTs在海河干流市区段沉积物/水间迁移行为研究

Transport of HCHs Between Sediment and Water in the Mainstream of Haihe River

HCHs在海河干流沉积物/水间迁移行为研究

The Study on Characteristics of Slackwater Deposits of Palaeoflood Sedimentary in the Loess Regions

黄土地区河谷古洪水平流沉积物特征研究

Sediment begins to choke the channel's opening.

沉积物开始淤塞河道口。