1) lake-type settling basin
湖泊型沉沙池
2) desert lakes
沙漠湖泊
1.
Study on dynamic change of desert lakes in Badan Jaran Desert based on RS and GIS
基于RS和GIS的沙漠湖泊动态变化研究——以巴丹吉林沙漠为例
3) lake deposit
湖泊沉积
1.
As fallout { { } 137 Cs } with a short half life of 30 ^17 a in modern lake deposits, depth distribution shapes of cosmogenic radionuclide 10 Be with a long half of 1.
20世纪50—70年代核试验产生的137Cs尘埃,在现代冰川和非冰川湖泊沉积剖面中的深度分布存在明显差异。
4) lake sediment
湖泊沉积
1.
Information of Environmental Evolution Recorded by Munengnuor Lake Sediment in the Lower Reaches of Heihe River
内蒙古黑河下游木能诺尔湖泊沉积物记录的环境信息
2.
Sediment samples from Dianchi Lake sediment core were measured by means of the direct γ ray analysis for the sediment-depth profiles of natural radionuclides 210 Pb and 226 Ra and artificial radionuclides 137 Cs and 241 Am.
研究结果表明该地湖泊沉积演化过程受到较强的人类活动的影响。
3.
The information about the climate change and early human activities for 9 000 a in Jiangling area,Hubei Province,China,was documented in lake sediments.
随着定居点扩大和人类活动的加剧,地表土壤侵蚀严重,入湖陆源粗颗粒物质和有机物质增多;湖泊沉积物表现为粗颗粒含量迅速增加,各粒径波动频繁,TOC、TN和C/N出现高值,δ13C出现低值。
5) lake sediments
湖泊沉积
1.
Especially the lake sediments with bigger deposit velocity are well proxies for high-resolution environmental changes researches.
系统简单、受人类活动干扰较小的湖泊沉积物真实地记录了湖区气候环境变化方面的大量信息,特别是沉积速率较快的湖泊,其沉积物是记录高分辨率气候环境变化的良好载体。
2.
, loess, river sediments, lake sediments, aeolian sediments and red earth, were chosen from South China for magnetic susceptibility measurement, grain-size measurem.
研究结果表明,黄土和湖泊沉积中磁化率的变化主要受气候变化的影响,是指示古气候的重要指标;河流沉积物和风沙沉积物的磁化率主要受粒度的影响;影响南方红土磁化率的因素十分复杂,其磁化率的解释比较困难有待进一步的研究。
3.
For more than ten years, many studies related to the lake sediments and environmental changes on Tibetan Plateau have been carried out.
从空间尺度、不同时间尺度、重大气候环境变化事件、与其他研究结果的对比以及代用指标与气候要素的定量关系研究等几个方面总结了近十余年来青藏高原湖泊沉积与环境演变研究的主要成果。
6) lacustrine sediment
湖泊沉积
1.
Based on analysis of grain size, geochemical elements, organic matter and CaCO 3 records in lacustrine sediment in Baiyin-kulun lake, combined with 210Pb and 137Cs, the sequence of climatic and environmental change of Otindag Sandy Land was reconstructed in the past 500 years, including two important climate events, i.
为摸清浑善达克沙地近 5 0 0年来气候环境变化规律 ,以沙地内湖泊沉积为研究对象 ,根据浑善达克沙地内白银库伦诺尔湖泊沉积物粒度、地球化学元素、有机质和CaCO3 等环境变化代用指标的分析结果 ,结合2 10 Pb和13 7Cs测年资料 ,恢复了包括小冰期和 2 0世纪初升温期等气候事件在内的浑善达克沙地近 5 0 0年来气候环境变化规律。
2.
From the base of the formation upwards,the succession is composed of braided river,meandering river and lacustrine sediments.
河南西峡盆地上白垩统马家村组沉积厚度巨大 ,达 196 0m ,由辫状河沉积、曲流河沉积和湖泊沉积组成。
3.
Lake level change recorded by core of the Quaternary lacustrine sediment in the central Tibetan plateau and its climatic implications;
通过对羌塘地区中部羌D1井长181·6m第四系岩芯的研究,分析湖泊沉积记录的岩相旋回和Fe/Mn和Sr/Ba等微量元素古环境参数的变化,结合样品的热释光(TL)测年数据,讨论晚更新世该区湖泊扩张和湖面升降变化过程。
补充资料：沉沙池
| 沉沙池 sedimentation basin 沉淀水中大于规定粒径的有害泥沙，使水的含沙量符合水质要求并与下游渠道挟沙能力相适应的水池。其断面远大于引水渠道断面，水流至其内流速骤减，挟沙能力降低，泥沙遂沉于池中。进出口常设闸门。应在池中沉淀泥沙的最小粒径及沉于池中泥沙的沉降百分比，由用水性质确定。沉沙池按位置分为渠首沉沙池和渠系内沉沙池；按冲洗设备分为水力冲洗式沉沙池和机械清淤式沉沙池，前者又分为定期冲洗式（沉沙与冲洗交替进行）和连续冲洗式（供水和冲沙同时进行，多用于含沙量较大，颗粒较粗，且不允许中止供水的情况）；按沉沙池的数目分为单室式和多室式；按平面布置分为直线形沉沙池和曲线形沉沙池。此外，黄河下游引黄灌区，常结合放淤改土使用条渠形沉沙池，淤满后即用于耕种。
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参考词条