淤泥灘 的英文怎麼說
中文拼音 [yūnítān]
淤泥灘
英文
sludge bank-
This thesis studies the tidal creek system on the prograding mud flat in jiangsu province based on 16 pieces of mss, tm and spot images from 1973 to 2001, and analyses the growth, genetic classification, evolution and affecting factors of tidal creeks
本文結合1973年至2001年共16張不同時相的衛星影像對江蘇淤長型淤泥質潮灘上的潮溝系統進行了研究，對潮溝的發育、形成、演化和影響因素進行了初步探討。Tide is the primary dynamic factor in building tidal flat ; it must be affect tidal creek system on mud flat. therefore, based on the raster image of the year of 2000, the thesis has built correlation equations between average tidal ranges and the density of tidal creeks, the ratio of the width of outlet to the length of low tidal shore, the ratio of the area of tidal creek to tidal basin respectively. the result shows that the former is high well - marked correlation ; the two latter are well - marked correlation
潮汐是塑造潮灘的主要動力因素，它必然與淤泥質潮灘上潮溝系統的發育有密切的關系，為此，本文以2000年的衛片作底圖，對潮溝系的密度、溝口寬度占低潮線長度的比值以及潮溝面積與潮盆面積的比值，分別與平均潮差建立了相關關系，結果發現，潮溝系的密度與平均潮差之間存在著高度顯著的相關性，溝口寬度占低潮線長度的比值和潮溝面積與潮盆面積的比值與平均潮差之間存在著顯著的相關性。Based on the research of intertidal flat topography measure at home and abroad, this article avoids some problems troublesome, such as the dependence of the station of tide gauging, precise match of images and so on. first, we monitor soil water content of intertidal flat through building correlation model between soil water content of intertidal flat and landsat tm data, then we analyse the correlation between soil water content and topography of intertidal flat, last, we extract topography of intertidal flat combining with gis
本文在總結國內外潮灘地形測量研究的基礎上，避開對潮位站的依賴和影像精配準問題，以江蘇大豐港堤附近淤泥質潮灘為研究區域，通過遙感方法建立潮灘土壤水分與tu光譜值的定量數學模型，提取潮灘土壤含水量信息，然後通過潮灘土壤水分與地形的定量關系，結合gis技術反演潮灘地形。In this paper, the deposition evolution process in qtx reservoir are studied, the incoming water and sediment, the operation data, and the time and space distribution of longitudinal and lateral sedimentation in reservoir are analyzed in detail, and the longitudinal scouring and sedimentation and lateral deformation law in reservoir tidal flat and mainstream under different operation way are summarized in every operation period
本文以黃河青銅峽水利水電樞紐工程水庫淤積演變過程為研究對象，對青銅峽水庫來水來沙組成、水庫運行資料、水庫縱橫向泥沙淤積時空分佈等進行了較詳細的分析，總結了青銅峽水庫各個運行時期不同運行方式下水庫灘槽縱向沖淤和橫向變形規律。Qualitative analysis on the effect of flood control and engineering safety -, seizing lots of water conservancy effective adjust storage. then making water level risen and reservoir backwater enlarged in the same flow level ? effect on beach and the buildings across river, soil salinization caused by flow from a lower to a higher place and unsmooth groundwater drainage destroy of travel resource caused by disorder enclose tideland for cultivation in reservoir silt up flood plain are given, then presents enclose tideland for cultivation dyke is important cause which water level rise in reservoir
本文從青銅峽水庫泥沙淤積入手，分析水庫泥沙淤積特性和庫區圍墾堤開發利用淤積灘地的現狀，對防洪安全及工程安全的影響、侵佔大量的有效調蓄庫容、造成同級流量下水庫水位抬升水庫回水上延、對沿岸及過河建築構成影響、因水位抬升致使庫區周邊灌區地下水排水不暢乃至倒灌而造成土地鹽堿化、對水庫庫區大量淤積灘地無序圍墾造成旅遊資源破壞等五方面影響的定性分析，提出庫區圍墾堤是水庫水位抬升的重要原因。Pattern amp; amp; control of sediment deposition at bikou reservoir
巖灘水庫泥沙淤積分析However, with the rising of sea - level and the tidal flat, the exploitation and utilization of tiaozini sands will be inevitably impacted in a certain degree
但隨著海面上升和灘面的淤高，條子泥的開發利用將受到一定的影響。In this field observation we also find an important fact that, even during storm surge period, high tidal flat can still be in sedimentation in some place, no erosion occurred. to tell the typhoon storm surges from cold wave storm surges, 12 monthly sedimentary samples are collected from the modern tidal flat surface at dafeng, jiangsu. palynological analysis of these samples indicates that the seasonal palynological features of the tidal flat sediment are very obvious and some palynological indexes, such as taxon percentage of arboreal, herbaceous pollen and spore, are good indicators to tell the seasonality of the tidal flat deposits
為區分風暴潮沉積是由臺風引致還是由寒流或冷鋒引致，對長期處于淤積狀態的江蘇中部大豐縣斗龍港附近潮灘，採集了一年中每月小潮期間灘面表層泥樣，並在啟東茅家港灘面分別採集了6月、 9月與12月的表層泥樣，在實驗室中，對這些樣品進行孢粉等分析，認為在以粉砂、泥為主的潮灘沉積中，孢粉種類百分比，尤其是木本種類占孢粉總種類的百分比是判別季節性潮灘的重要指標，通過啟東茅家港工程建設區淤積狀況的觀測記錄對這一判別指標進行了驗證。Based on the hydrodynamic theory, the riverbed deformation process of all reservoir area during long duration is investigated by using of computer numerical simulation. in the meantime, based on one dimensional sediment model, the simulation of the longitudinal scouring and sedimentation and lateral deformation in reservoir tidal flat and mainstream are researched. the quasi - two dimensional sediment numerical model forecasting longitudinal scouring and sedimentation and lateral deformation in reservoir and river are established
應用水動力學理論，以計算機數值模擬為手段，主要考慮長歷時全庫段的河床變形過程，在一維泥沙數學模型基礎上，同時考慮水庫灘槽縱向沖淤和橫向變形的模擬，著重建立可以預測水庫及河道縱向沖淤及橫向變形的準二維泥沙數學模型。Sediment silt up in reservoir is one of the important contents in key water control project, research on the effect and surrounding environment effected by patterns of enclose tideland for cultivation in key water control project, which has risen concerns of lots of departments
水庫泥沙淤積是水利樞紐工程研究的重要內容之一，青銅峽水庫庫區淤積后灘地的圍墾利用方式對水利樞紐工程的安全運行、效益發揮以及對周邊環境的影響分析研究已引起各方面的關注。Silt will deposit there. velocities around groin head are larger than the scour velocity and scour hole may develop in this area. this would affect the stability of spur dikes
受丁壩阻擋，壩田所在的邊灘區域流速很小，泥沙在此淤積:而壩頭附近流速較大，通常在此區域形成沖刷，影響丁壩的穩定性。分享友人