flood sedimentation 中文意思是什麼
flood sedimentation
解釋
洪水泥流砂量- flood : n 1 洪水，水災。2 溢流，漲水，潮水最高點，泛濫，洶涌。3 〈詩〉河，湖，海。4 充溢，豐富；大量，一...
- sedimentation : n. 1. 沉澱[沉積、沉降]（作用）。2. 沉積學，沉積法。
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Abstract : this paper analyzes causal factors of flood in the middle reaches of changjiang river. due to neglection of environmental management, soil erosion in the upper and middle reaches of the changjiag river, lake sedimentation, large - scale reclamation of marshes, the flood regulation capacity of the lake was descended, and flood stage was risen and prolonged. consequently more and more river levees and lake dikes were reinforced almost every year to prevent the disasters, which made flood level go up and flood period last for more days. the frequency of flood and waterlogging disasters rose and their damage was enlarged. several proposals for flood prevention including agricultural modernization are put forward
文摘: 1998年長江大洪水后開始實施的「平垸行洪，退田還湖」的土地利用調整方案，從長遠來說應尋求農業安全且收入逐漸提高條件下的土地利用，長江中游地區應積極推進農業現代化，提高農業勞動生產率，轉移，減少分蓄洪區的人口，移民建鎮，對區內的土地要促進其規模經營，由優秀的有文化的農民經營，平時只有少量的直接從事農業生產的經營管理人員，農忙時則大量地使用季節性合同工或實現機械化，大洪水時退田還湖，減輕長江幹流大洪水的壓力，減少分洪與特大洪災時的損失，這樣還可促進避洪、冬季農業等的發展，也有利於長江中上游地區陡坡耕地的退耕還林，還可在糧食充足時進行休耕，在旱災、糧食緊張時擴大糧食生產? -
Because during the sedimentation of the flood plain - estuary fades, the conditions of sea level rising, tidal regime, sediment supply and accommodation space were suitable for the development of a tidal ridge system, the sand lenses associated with this facies may represent tidal ridge formation in the incised valley
在河漫灘河口灣相沉積期問，由於海平面上升、潮流體系、沉積物供給和可容空間條件適合一個潮流沙脊體系的發育，其中的砂質透鏡體可能代表了下切河谷內發育的潮流沙脊。 -
Because of the unreasonable operation mode, the reservoirs sedimentation is serious, which lead to the problems of inadequate use of water resource, degressive works benefit and high risk in water works operation and flood control in this area
但長期以來，由於運用方式不合理，水庫工程泥沙淤積嚴重，徑流資源得不到充分利用，工程效益逐年衰減，並對工程運行和地區防洪安全形成嚴重威脅。 -
Some critics believe sedimentation is growing at a faster rate, which could eventually make the dam unable to contain a flood crest
不過有意見認為，泥沙淤積的速度在加快，並最終會導致大壩無法承受洪峰。 -
It founds natural heightening theory for warping dams and puts forward specific way of diversion, measures for preventing dam eroded and design for energy dissipation and flood storage of cofferdams and sedimentation and dewatering through exploration and study on deposition in front of natural formed dam and the techniques of building dam through hydraulic filling
通過對天然聚湫壩體前的淤積和「水力沖填」築壩技術的探索和研究，創立了淤地壩壩體自然加高的理論，並提出了具體的導流方式、壩體防沖措施及圍堰消能蓄洪、留淤脫水設計。 -
Improvement of flood and waterlogging disasters by sediment flushing and sedimentation reducting in lower reach of weihe and sanmenxia reservoir area
排沙減淤治理渭河下游三門峽庫區洪澇災害 -
Therefore, if urban rainwater can be utilized to recharge groundwater, it not only can supply decreasing groundwater resource and prevent ground sedimentation a nd elevate groundwater level, but also can reduce expense of function and investment to drainpipe in city and lessen flood and waterlogging disaster at rainstorm
因此，若能利用城市匯集的雨水回灌地下不僅可以補充日益匱乏的地下水資源、阻止或減緩地面下沉、提高地下水位，同時還可以通過分流部分雨水減少城市排水管道和泵站的投資以及運行費用，並可減輕暴雨時洪澇災害的發生。 -
The overall plan for xiaolangdi project management zone is carried out to ensure the safe operation of hydraulic constructions in the zone, to make full use the advantages of location and resources of the area, and to realize the general objective of “ mainly aim at flood prevention including ice flood prevention and sedimentation reduction, and give consideration to water supply, irrigation, power generation, storage of clear water and discharge of sediment flow, alleviating disaster and bringing about benefit, and comprehensive utilization ", for the project development
為確保小浪底水利樞紐工程管理區內水工建築物的安全運行，充分發掘管理區的區位優勢和資源優勢，實現「防洪（包括防凌） 、減淤為主，兼顧供水、灌溉、發電、蓄清排渾、除害興利、綜合利用」的工程開發總目標，對工程管理區進行了總體規劃。 -
Guxian key hydraulic project will play important roles in flood prevention, sedimentation reduction, irrigation, water supply, power generation and so on
古賢水利樞紐具有防洪、減淤、灌溉、供水、發電等重要作用。
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