river delta sediment 中文意思是什麼
river delta sediment
解釋
河流三角洲沉積物-
A statistical model is developed and indicates high correlation between the accretion of modem yellow river delta and the water and sediment discharge of yellow river, and the model shows the necessary water and sediment discharge per year to ensure the equilibrium of alluvion and erosion of yellow river delta
黃河三角洲凈造陸面積與黃河入海水沙量的統計模型說明，黃河三角洲沖淤動態平衡時的黃河入海徑流量為71 . 93億m ~ 3 a ，輸沙量為1 . 853億t a 。 -
Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。 -
Chondrite normalized ree distribution patterns for the core q43 are comparable to those of the sediment of changjiang river and huanghe river delta
球粒隕石標準化后的稀土元素具有與長江、黃河、黃土等上陸殼沉積物相一致的特徵。 -
From sedimentology symbol such as rock assembled, sediment gradus, sandstone grading analysis, protogene sedimentary structure, ichnofossile and logging facies etc and palaeoenvironment background, it is confirmed that shen84 - an12block s34 segment is braid river delta system, not fan delta system ( abrupt slope ). then it can be more partition as braid river delta plain sedimentary assembled, delta front sedimentary assembled and prodelta sedimentary assembled on core and log assembled. and delta plain sedimentary assembled can be identified four microfacies : braided distributary channel, crevasse splay, overbank deposits and interdistributary bay
沉積微相研究是儲層非均質性研究的基礎，研究區有豐富的巖芯資料和測井資料，通過巖石組合、沉積韻律，砂巖粒度分析、沉積構造、古生物遺跡和測井相等沉積學標志，結合古環境背景，確定沈84 ?安12塊s _ 3 ~ 4段為辮狀河三角洲體系，而不是前人所認為的扇三角洲（陡坡型）體系，在巖芯和測井組合上可進一步劃分為辮狀河三角洲平原沉積組合、三角洲前緣沉積組合和前三角洲沉積組合，其中三角洲平原沉積組合又可識別出辮狀分流河道、決口扇、分流河道邊部和分流間灣四種微相類型；三角洲前緣沉積組合識別出水下分流河道、水下分流河道邊部和分流河口壩三種微相。 -
This research will try to resolve the distribution and controlling factors of gas layers by the study of division of substrata in bawu gas field. the main reservoir of bawu gas field are the sand layers in the formation of k1sh, k1y, k1d, k2q, sediment delta plane, delta frontier, plait delta developing distributary riverway sand, bayou sand dam, far sand dam and river sand of plait
八屋氣田主要儲層為早白堊世的沙河子組（ k _ 1sh ） 、營城組（ k _ 1y ） 、登婁庫組（ k _ 1d ）及晚白堊世的泉頭組（ k _ 2q ） ，為三角洲平原、三角洲前緣及辮狀河三角洲沉積體系，發育分流河道砂、河口砂壩、遠砂壩、辮狀河道砂等，砂層在平面上連通性差。 -
Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method
研究認為： （ 1 ）黃河河口口門逕流潮汐區域並非持續保持淤積狀態，在特定的來水來沙、邊界條件和海洋動力條件下，該區域可以處于沖刷狀態； （ 2 ）從河口泥沙沉積分配的過程來看：三角洲與濱海區泥沙的沉積變化趨勢是基本一致的，各部位的泥沙沉積比例變化基本呈波動狀態，且三角洲與濱海區泥沙的沉積比例與來沙量密切相關，基本成正比關系； （ 3 ）在口門處，影響泥沙沉淤的因素主要集中在潮汐頂托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等，本報告主要對口門加寬，口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: （一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式，據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 ）本項研究首次論證了河口三角洲岸線動態平衡的概念，並建立了黃河河口來沙量與造陸面積的相關關系，得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 ）本項研究首次提出了河口泥沙優化調控的概念，並對其宏觀優化調控模式進行了初步探討。 -
Analyze the yellow river estuary sediment transport and distributing affected factors, utilize the field measured data, based on the hydraulics, river hydrodynamic and statistics fundamental theory, analyze the estuary sediment transport and settling deposition regulation, yellow river estuary gate area sediment deposition mechanism and estuary delta coastline dynamic balance, and some important achievements acquired
研究報告分析了黃河河口泥沙輸移和分佈的影響因素，利用實測資料，運用水力學、河流動力學、統計學等基本理論和原理，對河口泥沙輸移及其分佈規律、黃河河口口門區域泥沙沉積機理以及河口三角洲岸線的動態平衡問題進行了分析探討，並取得了部分重要認識和進展。 -
On the basis of the framework of chronostratigraphic sequence and the analysis of well - log, seismic section, the paper studied types and the distribution of sedimentary facies. three types of sediment can be identified : braided river delta systems mainly formed on the south slope. little - sized turbidit fan mainly formed in the middle deep area and dan delta mainly formed on the north slope of the depression
在等時層序地層格架的基礎上，通過測井、地震資料分析，對凹陷沉積相的類型及空間分佈進行了研究，研究表明南坡主要發育辮狀河三角洲體系，深窪區發育小型濁積扇體系。北坡主要發育扇三角洲相。 -
Fractal characteristics of discharge and sediment discharge in the pearl river delta
西北江三角洲來水來沙的非線性分形特徵 -
Evident backward erosion had appeared in the coastline of the delta region in recent years owing to decreaseof flow and sediment from the yellow river
近年來黃河來水來沙呈遞減趨勢，現行河流路海岸線淤進減緩，原行河流路海岸線出現了嚴重的蝕退。 -
After the implementation of water regulation, the river course in delta reaches the minimum ecological flux, and no flow interruption take place ; the runoff flowing into the sea and the transporting sediment increase ; the areas of fresh water wetland is also increased gradually ; species variety get instauration obviously
結果表明，黃河水量統一調度后，河口三角洲最小河道生態基流在非汛期基本得到滿足，斷流現象不再發生，徑流入海率和輸沙入海量有所增加，淡水濕地面積逐漸增多，物種多樣性明顯得到改善。 -
The surfacial sediment on the yellow river delta is so sensitive to ocean hydrodynamic condition, especially waves that soil failed and came into being a lot of unstable features : bumps and hollows, flute and groove cast of silt and collapse
黃河三角洲潮灘淺表層沉積物由於對海洋動力尤其是波浪作用的敏感，會發生破壞，形成塌陷、凹坑、粉砂流沖溝等一系列災害地質現象。 -
Member - one of nenjiang group is divided into sa 0 sand - group. the same points of medimentary microfacies types and distribution by developed in many sand groups lies in that they dominate with river delta and shore - shallow lake in west and dominate with deep lake - semi - deep lake and contain gravity flow. the change of sediment scope of each sand - group makes deep lake - semi - deep lake and sublacustrine fan sediment of ga 0 and pu 2 sand - groups not being developed during the lest sediment area, but the deep lake - semi - deep lake and sublacustrine fan sediment during the largest sediment scope of sa 0 is well developed
多數砂組發育的沉積微相類型和分佈的共同之處在於，西側多以河流三角洲和濱淺湖沉積為主，東部以深湖?半深湖為主其中夾有重力流，但由於各砂組沉積范圍的變化，造成沉積區最小時期的高0 、葡2砂組深湖?半深湖及湖底扇沉積不發育，而沉積范圍最大時期的薩0砂組深湖?半深湖及湖底扇沉積極其發育。 -
This paper presents effects of estuarine species on sediment geological properties including morphologic, penetration strength and grain size of sediments in diaokou area around the delta of the yellow river
本文以黃河三角洲釣口區潮灘為研究對象，研究了不同生物密度對沉積物工程地質特徵的改造，包括灘面形態、沉積物強度、以及沉積物顆粒大小的改變。 -
In this work, four representative samples paddy soil, river sediment, pond sediment and marine sediment from pearl river delta southern china and southern china sea are studied
本工作在珠江三角洲地區採集了四種土壤和表層沉積物樣品，分別是稻田土壤、河流、稻田和海洋沉積物。 -
A study of sediment budget of the yellow river delta : the case of diaokouhe lobe
以釣口河亞三角洲為例 -
Up to now, people have blamed this loss of delta land on the two large dams at aswanin the sediment that used to flow down the river
黑體部分是主題句的核心表達內容，大意是阿斯旺大壩應對三角洲土地流失負責（其餘內容不反了，因為關鍵要看懂這個意思） 。
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