流域坡降 的英文怎麼說

中文拼音 [liúyùpōjiàng]
流域坡降 英文
slope of watershed
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 坡 : Ⅰ名詞（地面傾斜的地方） slope Ⅱ形容詞（傾斜） sloping; slanting
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 流域 : [水文] watershed; basin; drainage area; catchpit; catchment area; drainage basin; feeding ground;...
  1. As a practical application, the safety situation of jiujiang dike under the 1998 pluvial condition of once a hundred years in yangtze river has been evaluated by the reliability method from the point view of the seepage stability in terms of probability analysis and two dimensional saturated seepage finite element analysis combining with the mechanism of seepage burst in jiujiang dike summarized in the thesis

    通過滲流有限元和滲流可靠性分析論證了1998長江流域特大洪水災害中九江市防護大堤發生的嚴重潰口破壞的滲流破壞機理。分析、比較得出結論：堤防下游坡腳的出逸比降接近和超過臨界比降，在1998年長江百年一遇的洪水條件下九江大堤潰口斷面的抗滲可靠性僅在55左右的非常低水平。
  2. When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge

    以75000km ~ 2的川中丘陵地區為試點研究區，繪制了該地區新模型的參數等值線圖，率定了不同設計頻率的改正系數，使設計者只需在地形圖上獲取集水面積，河道平均坡降和流域形狀系數，在參數等值線圖上查得橋涵所在地的相應參數，使用計算器即可迅速計算出設計流量，大大縮短了設計周期，且精度較高，設計的洪水流量一般低於傳統方法，從而可減小橋涵跨徑，節省投資。
  3. Proceeding with the analysis of water resource peculiarity of jilin province, the authors bring forward that effective gathering and using of rainwater can supplement the gross amount of rainwater in valley, probe into rainwater resources use in jilin province : first is to make rainwater resources use plan in valley program, secondly is to construct gully dam system according to water and soil conservation project, to strengthen sloping field collection rain ' s project and forest - grass construction, to increase storage space, thirdly is to fully utilize field project and water conservancy project to gather rain water, intercept rainfall on the spot so as to restore water environment

    摘要從吉林省水資源特點分析入手，提出了雨水資源的有效集蓄利用是補充流域水資源總量不足的重要因素，探討了在吉林省雨水資源主要利用途徑是首先在小流域規劃中作好雨水資源利用規劃；其次是建設以水土保持治溝骨幹工程為主的溝道壩系，強化坡面集雨工程和林草植被建設，增大貯水空間；第三是充分利用田間工程和水利工程集雨蓄水，使降雨就地就近被攔蓄，最終使水環境得以修復。
  4. Based on abundant rainfall in minjiang river basin and frequent floods have brought great losses on agriculture production, national economy etc, the relationship between soil and water losses and rainfall characteristics was studied in four forest lands, viz

    本文針對閩江流域上游降雨豐富的特點，運用坡面徑流小區法研究了杉木林、封山育林、錐栗林、果園和裸露地（對照）的水土流失與天然降雨的關系。
  5. ( 5 ) conclusion was obtained by the analyzing and studying the mechanics environment of the rock mass and the landslide on right bank : according to the analysis, the present direction of the maximal principle stress was consistent with the present tectonic stress field, the value of the principle stress increased or reduced in special place, and there was tensile stress region at the 2000m or above it on the left bank, the accumulate and adjustment was very limited in 200 years, the calculated result of the landslide indicated that the landslide on the right bank was stable under the various conditions

    （ 5 ）壩址區河谷巖體力學環境及右岸古滑坡體的穩定問題分析得出：河谷巖體應力場的分析顯示，河谷巖體中主應力的方向基本上與現今區域構造應力場的方向一致，在一些特殊地帶巖體的主應力值有所降低或增高，特別是在左岸的2000m高程附近及以上，存在有明顯張應力區。在未來200年流變計算時步范圍內，河谷巖體應力的積累與調整較為有限。同時對滑坡體各種工況條件下的穩定性計算結果表明，右岸古滑坡體在各種工況條件下是處于穩定狀態的。
  6. Through measuring slope forms on the spot, serried sampling, physical and chemical analyzing, and measuring soil erosion from natural and artificial rainfalls, the project researched in the approaches and behaviors of soil erosion affecting contents of soil carbon and nutrient, and the law of soil carbon and nutrient distributing in micro - topographty under influences of soil erosion. in the same time, supported by geographic information system, models of soil carbon and nutrient changing with soil erosion have been built, and spatial processes of soil erosion affecting soil carbon and nutrient have been simulated, and annual and long - term changing of soil carbon and nutrient under impact of soil erosion have been estimated and forecasted, and synchronously, a elementary assessment for different soil erosion management has b een performed by using the models built in the study

    本研究以三峽庫區秭歸縣水田壩鄉王家橋小流域四個徑流試驗區二十個標準小區為研究對象，通過坡形實地測量、坡面密集采樣的顆粒分析和養分含量分析以及人工模擬降雨實驗，研究了土壤侵蝕對土壤碳和養分的影響途徑和表現，侵蝕作用影響下土壤碳和養分在微地形空間的分佈規律；同時，在地理信息系統的支持下，建立了侵蝕條件下的土壤碳和養分變化模型，模擬了侵蝕對土壤碳和養分影響的空間過程，預測了侵蝕影響下土壤碳和養分的年變化及多年變化，並通過研究建立的模型對不同侵蝕控制措施進行了初步的效益評價。
  7. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
  8. Based on the fractal character of the small watershed topographic feature, the spatial and temporal variation character of sediment yield of the watershed model, the dynamic developing process and fractal character of the topog raphic feature of the watershed model, and the coupling relationship between the sediment yield and the topographic feature of the watershed model are " studied by simulate experiment, fractal theory, high precise photogrammetry and gis technology. the validation research is conducted in chabagou watershed where the observation data of rainfall, sediment and runoff for 11 years is collected. the study provides new theory and method for the topographic feature quantitative research in the prediction model of small watershed sediment yield

    本文依據流域地貌形態所具有的顯著分形特徵，從模擬實驗出發，利用分形理論和方法，結合高精度攝影測量和gis技術，對流域模型侵蝕產沙時空變異特徵、地貌形態發育過程及其相應的分形特徵、流域模型侵蝕產沙與地貌形態耦合關系進行了深入研究，並以具有11年降雨泥沙徑流觀測資料的岔巴溝流域為例進行了驗證研究，為實現從單坡面侵蝕產沙模擬、預報向流域侵蝕產沙模擬、預報轉化過程中地貌形態參數的提取提供了理論和方法，為黃土高原小流域水土流失綜合治理提供了科學實踐依據。
  9. It is suggested in this paper that the sediment of the high stand system tract is mainly composed of fine - grained sediment, hardly of the large scale of fluvial - delta because of the low dip of the ramp, low subsiding rate and low sedimentary rate in basin

    研究表明，盆地基底沉降幅度小、坡度極為平緩、沉積速率很低，因此導致層序內的高位體系域多以細碎屑沉積為主，大型河流三角洲沉積基本不發育。
  10. It is put forward that the stands for selecting the project lands should be slope, desertification degree and rainfall, and the control of soil erosion and the prevention of land desertification should be the dual objects of the project

    提出武川縣的退耕還林工程地域選擇指標為坡度、沙化程度和降雨量，將水土流失治理和土地荒漠化的防治作為退耕還林工程的雙重目標。
  11. The characteristic of top soil will changed by splash erosion and surface erosion, accordingly to alert the route of runoff and seepage and work to unconsistenty of soil erosion

    棄土場坡面地表土壤特性隨著降雨擊濺和徑流沖刷的作用而發生變化，從而影響區域內徑流和滲流途經，造成坡面產流的不一致性。
  12. The paper establishes a mathematical model for calculating soil erosion modulus and a method for calculating new soil loss by using annual rainfall data and individual rainfall data, taking the outcomes of tests and study of natural rainfall, artificial rainfall and washout as a basis, rainfall erosion force, soil resistance to erosion and ground slope as main factors and combining with the study on new soil loss in typical regional development and construction

    摘要以天然降雨、人工降雨、放水沖刷等試驗研究成果為基礎，結合典型區域開發建設新增土壤流失分析的研究成果，以降雨侵蝕力、土壤抗沖性和地面坡度為主要因子，建立了用年降雨資料和次降雨資料計算土壤侵蝕模數的數學模型和開發建設新增土壤流失量的計算方法。
  13. Lesson engineering measure for research mainly from the sloping fields flow recycling potential analysis with gathering the water technique the both side collecting the region ' s rain - storm flood the data, year declining the water year the flow the data and water and soil conservation data, analysis combine intoing the small river valley flood the path comparing coefficient, water and soil conservation not flow coefficient, revising the new concept of deep etc. flow of year path, establishing synthesizing solving the sloping fields flow recycling the potential computing the model, bring upping gathering the water technique is with the

    課題研究主要從坡地徑流資源化潛力分析和集水技術兩方面入手，以典型區域為代表，收集了該地區暴雨洪水資料、年降水年徑流資料及水土保持資料，分析並引入了小流域洪徑比系數、水土保持不產流系數、修正年徑流深等新概念，建立了綜合解決坡地徑流資源化潛力計算模型，提出了集水技術的工程措施和方法。
  14. Based on the principles of runoff agriculture and sloping fields runoff moisture balance of natural precipitation, the dynamical regularity of soil moisture in rainfall and fertilizer harvest terrace was studied, which can provide a scientific basis for improving the utilization of natural precipitation

    摘要應用徑流農業和坡地降雨徑流水量平衡原理，對代表燕遼低山丘陵區典型區域不同平坡比的集流聚肥梯田土壤水分動態變化規律進行了研究，為提高該區自然降水利用率提供了科學依據。
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