lake sediment 中文意思是什麼
lake sediment
解釋
湖泊沉積物-
The research indicates that the modern sediment is divided three layers : polluted layer, transition zone and unpolluted layer. just the pollute layer cause dianchi lake environmental pollution. the high value district of ammoniac nitrogen distributes near northern part haigeng mainly, middle part increase slightly, have most lower near southern part, the content of ammoniac nitrogen of the polluted layer sediment lower than the lower layer ; the high value district of effective phosphorus distributes near haikou - jinning, from the north to the south, the content of effective phosphorus increases progressively, the content of effective phosphorus of the polluted layer sediment obviously higher than the lower layer
研究結果表明：滇池現代沉積物主要分為三層，污染層、過渡層和未污染的湖泊沉積層，其中污染層是對滇池環境污染造成影響的層位；氨氮的高值區主要分佈在北部海埂附近，中部略有增高，南部則最低，表層沉積物的氨氮含量低於下層；而有效磷的高值區則分佈在海口?晉寧附近，由北向南，有效磷的含量依次遞增，表層有效磷的含量要明顯高於底層。 -
So the effect of eutrophication of dianchi lake of sediment ca n ' t be ignored. based on the research of modern sediemnt of dianchi lake, the thesis is concerned about some physical and chemical characteristics ( including magnetic susceptibility, ammoniac nitrogen and effective phosphprus etc. ) and thermodynamics analysis of spontaneous mineral of iron
本論文主要以滇池現代沉積物為研究對象，對滇池現代沉積物的主要物理和化學性質（包括氨氮、有效磷、磁化率等） ，進行基礎性地分析研究並對滇池現代沉積物鐵的自生礦物進行了熱力學分析。 -
Sediment cores from lake titicaca itself also chronicle the event, showing a 33 - foot drop in the lake level at the time
提提卡卡湖沉澱物的巖芯也記載了這一事件的年代，表明在當時湖面下降了33英尺。 -
Isotope ; global change ; tree ring ; lake sediment ; ice core
同位素全球變化樹輪湖泊沉積物冰芯 -
The global change study is one of the most spectacular and interesting environment scientific questions in the 1990 s. the message of global change stores in tree rings, ice core, loess, underground water, lake sediment and deep sea sediment, all these proxies record the information of global change. with the advances in stable isotope techniques, the isotopic tracer records the message of climatic variation and becomes a powerful tool that can understand paleoenvironment reconstruction and modern environment changing
全球變化研究是90年代以來最為引人注目和關切的環境科學問題之一。全球環境變化的信息儲存於樹輪湖泊冰芯黃土地下水和海洋沉積物等載體中，隨著穩定同位素技術的發展，同位素示蹤劑指示環境變化的信息，成為了解古環境再造和現代環境信息變化的一個強有力的工具。 -
When excavating deep foundation ditch in the lake sediment that filled with deep and thick silt, it is a common technical problem that the upheave which caused by relief loads leading to slope destabilization
摘要在湖泊相沉積的深厚淤泥土場地開挖深基坑，由於坑底卸荷隆起導致基坑邊坡位移、失穩是常見的技術難題。 -
According to the thermodynamics analysis of spontaneous mineral of iron, we assumed : when sewage disposal, if sulphur is eliminated prior, this makes the consistency of iron ' s ion keep high relatively, it will react with phosphorus, produce heterosite, vivianite precipitate. this will decrease the interior load of the phosphorus in sediment, and reduce the consistency of the phosphorus in the dianchi lake
根據鐵的自生礦物的熱力學分析，提出設想：如果在污水處理時，優先脫硫，就使鐵離子的濃度保持較高，與磷生成磷鐵礦、藍鐵礦沉澱，就可以減輕沉積物中磷的內源負荷，進而降低滇池湖水中的磷的濃度。 -
The magnetic susceptibility of dianchi lake modern sediment decreases progressively from the edge to the middle of the lake, distributes with the heavy mineral of sediment basically unanimous, increases along with the degree of depth, negatively correlates with the total phosphorus
滇池現代沉積物的磁化率大小由濱岸帶向湖心依次遞減，與滇池沉積物中的重礦物分佈基本一致，在垂向上，隨著深度的加深而變大，與總磷呈負相關關系。 -
Depositional cycles on basin scale have been interpreted as the result of depositional response to tectonism such as episodic rifting, polyphasic compressive flexural subsidence and reversion, and differential subsidence of fault blocks ; while the formation of high frequency sequences was attributed to variation in lake level and sediment supply
盆地規模的沉積旋迴多是盆地幕式裂陷、多幕擠壓撓曲沉降、多期構造反轉、斷塊差異沉降等構造作用的沉積回應；高頻層序單元的發育則主要與湖平面和沉積物供給量的變化有關。 -
Due to issues of dongting lake districts flood composition, the evolution of sediment flow, the river and lake ( r & l ) distribution characteristic as well as the layout of r & l - dredging engineering, the article simulated the model of the dongting lake terrain change by using the gis technology and adopted the limited volumetric method to establish the two - dimensional hydraulics computation model of lake in order to forecast the water level, the flow capacity, the speed of flow and changes of flow field after implemented the project, which have provided the reliable theoretic basis for the decision - making and implementation of renovation for river course, canal and harbor and river course - dredging engineering
摘要針對洞庭湖區的洪水組成、水流泥沙演變、河道湖泊水系分佈特點以及河道湖泊疏浚工程布局情況，利用gis技術模擬洞庭湖地形變化，採用有限體積法建立了湖泊二維水力學計算模型預測疏浚工程實施后的水位、流量、流速流場變化，為河道、航道港口整治、河道疏浚清淤等工程決策與實施提供了可靠理論依據。 -
This paper summarized the progress of studies on the environmental pollution of heavy metals in lake sediment
摘要綜述了湖相沉積物重金屬環境污染研究進展。 -
Seismic survey is a new method used to civil engineering area in recent years. it was widely applied to survey or detecting of roadbase, dam base, foundation of building, tunnel, river bed, lake bed and etc. the chief methods are reflection method, refraction method, wave velocity testing, surface ware survey and transverse wave suivey. seismic survey can divide different layer, measure the incidence of sediment stratum, detect the structure of rock, test the handle effect of surface wave survey, we can calculate the carrying capacity of foundation and other mechanical parameters. this technique can give service to some big engineering departments such as highway developing company, survey design company, water supply company, plan bureau, construct bureau etc
應用於工程的主要方法有反射波法折射波法波速測井面波法及橫波勘探等。地震勘探能詳細劃分地層高精度地確定沉積地層的傾角能夠準確探明巖體構造褶皺斷層破碎帶裂隙帶對于回填工程路基壩基，地震勘探可以檢測其回填處理效果對于隧道工程，可以探測隧道洞體的圍巖分類及洞口地質情況利用面波勘探所得到的瑞利波速度，可以準確推算地基的承載力動彈模量等力學參數。 -
The characteristics of heavy mentals distribution and pollution in sediment from lake taihu
南海北部陸架區表層沉積物中重金屬分佈和污染狀況 -
( 5 ) by analyzing the terrace in the lacustrine sediment of the ancient barrier lake, diexi, minjiang river, forming of the terrace is not only because of the intermittent arising of the tectonic movement, but also because of descend of the eroding normal covering resulting from destroying of the barrier lake
（ 5 ）通過對岷江疊溪古堰塞湖湖相沉積中的河流階地分析可知，階地的形成不僅僅是由於新構造運動的間歇性抬升作用，由於堰塞湖的潰決引起洪水下泄，導致河流侵蝕基準面的下降也可以形成階地。 -
The analyzed results are as follows : the late 1960 ' s cutoff of riverbends increased both the runoff amount and the sediment transport amount of the lower reach of jingjiang river, while the sediment deposition decreased in the lkngting lake area ; after the mid 1980 ' s, both the middle reach of yangtze river main stem and the dongting lake occurred a trend of decreasing annual sediment transport as a result of decreasing sediment releasing from the upper reach of yangtze river ; and in the recent 3 years ( 2003 - 2006 ), the three gorges reservoir first impoundment additionally reduced the sediment concentration in the middle reach of yangtze river flow with a long time, so a distance would be quite long for suspended sediment recovery, but the distance for bed - material load of suspended sediment recovery would be quite short
分析結果表明： 20世紀60年代下荊江裁彎后，三口（松滋口、太平口、藕池口）分流分沙減少，下荊江徑流量和輸沙量相應增加，洞庭湖泥沙淤積減少； 80年代中期以後，長江中游幹流及洞庭湖出口的年輸沙量呈減少趨勢，城陵磯至武漢河段河床由淤積轉為趨向沖淤平衡；三峽工程初期蓄水運用后，長江中游含沙量沿程恢復距離較長，但床沙質部分恢復距離相對較短。 -
In the core, more than 20 kinds of lithofacies was recognized and more than 6 type microfacies including channel, inter - channel, sheet - like sand, lake and salt lake was distinguished. 2 founding stratigraphy framework through base level analysis four scales cycle was distinguished from the core. very - short term base level cycle is equal to a sediment incident
儲層物性較差，孔隙度多在11 - 13之間，滲透率多小於5毫達西，層內夾層較為發育，層內和層間滲透率差異明顯，滲透率變異數多在0 . 7以上，孔隙喉道細小，以小於0 . 1um的喉道為主。 -
The formation and evolution of the sequence stratigraphy of the yanchang formation are governed by slow tectonic subsidence, warm humid climates, sediment supply and lake - level fluctuations
延長組層序地層的形成與演化主要受控于當時緩慢的構造沉降、溫濕氣候、陸源碎屑物源供給及湖平面升降等地質因素。 -
Lake sediment anomaly
湖積物異常 -
Isolation, purification, and phosphate - solubilizing capability of phosphorous bacteria in west lake sediment
西湖沉積物中解磷菌的分離純化及其解磷能力 -
It mainly discussed the research contents and the research methods in this field, and the evaluation methods of the environmental pollution of heavy metals in lake sediment
介紹了該領域研究的主要研究內容、主要研究方法和湖相沉積物重金屬污染的評價方法。
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