sediment yield 中文意思是什麼
sediment yield
解釋
沉積量-
Dynamic sediment yield of rill erosion
細溝侵蝕動力過程極限溝長試驗研究 -
Through the analyses of characteristics of gully thalweg and soil erosion in upland and gully land, sediment sources in small watershed, sediment yield relationship between upland and gully and ecological functions of vegetation corridor, it is considered that vegetation corridor combined with land preparation measures may block runoff and sediment from upland and reduce the amount of soil erosion in a watershed by 54. 5 % ~ 77. 0 %
摘要在分析黃土高原地區的溝沿線、溝沿線上下溝間地和溝谷地土壤侵蝕特徵、小流域泥沙來源、坡溝侵蝕產沙關系的基礎上，結合廊道的生態功能和以往的研究結果，認為在溝沿線的上部建立草灌與整地工程措施相結合的植物廊道，來攔蓄阻截溝間地的來水來沙，可使流域的土壤侵蝕量減少54 . 5 % ~ 77 . 0 % 。 -
In the control, even light rain could bring soil and water losses. while for orchard and costarica henryi forest, runoff and sediment yield both reduced greatly. regarding to chinese fir and enclosing and tending forests with favorable vegetative coverage, minimum soil and water losses were produced even by the rainstorm
裸露地（對照）小雨時也可能產生水土流失，而大雨以上降雨會產生嚴重水土流失；具有一定植被覆蓋且採取水土保持措施的果園和錐栗林的徑流量和泥沙量大幅度減少；而植被覆蓋良好的杉木林和封山育林地即使大雨以上降雨也僅產生極輕微的水土流失。 -
The proportion that the sediment yield of the main gully accounts for the total sediment yield of the experimental watershed model is from48. 7 % to 66. 6 %, and the proportion that deposition sediment yield of main gully accounts for the total deposition sediment yield of the experimental watershed model is from64. 9 % to 99. 4 %. the developing process of topographic feature of the experimental watershed model. expanding the gully width and cutting down the gully bottom are the two chief forms of the topographic feature development
流域模型地貌形態發育過程溝谷擴展和下切是流域模型地貌形態發育的主要形式，溝谷擴展發育主要發生在發育活躍時段，主溝所佔溝谷總面積比例在流域模型溝谷擴展發育過程中保持在60以上：主支溝下切發育在發育初期和發育活躍時段前期表現最為劇烈，其橫剖面為v字形，在發育初期和穩定時期時段呈現淺u字形和底部較為平坦的梯形，主溝的橫剖面發育明顯優先於各支溝。 -
The topographic feature is one of the main factors that influence the process of soil erosion and sediment yield of small watershed. the quantitative parameters of small watershed topographic feature are average watershed slope, average slope length, gully density and so on, which are based on the quantitative method of slope character and do not reflect the essential character of the small watershed topographic feature, which are complex
地貌形態是影響小流域侵蝕產沙的主要下墊面因素之一，其量化參數一般繼承坡面地貌特徵量化方法（如坡度、坡長因子）而採用平均坡度、平均坡長及溝壑密度等參數，這些參數僅是對流域地貌形態的概化和單因子表達，沒有真正反映流域地貌形態復雜的本質特徵和相互聯系。 -
The region of flow produce is loose embankment and the flat roof, the gully erosion chain is the main cause of the sediment yield increase
棄土場內主要的產流區域為鬆散邊坡和平臺，坡面的侵蝕鏈是造成區域內產沙量增加的主要原因。 -
Ii ) runoff erosivity reflects relationship of water erosion forces and sediment yield more directly than rainfall erosivity. it intergrated ability of runoff volume and flood peak on detaching soil and transporting sediment and is more reasonable than single runoff depth or flood peak volume
（ 2 ）以徑流侵蝕力代替降雨侵蝕力來反映水蝕營力與產沙量的關系更加直接，而且綜合了徑流量與洪峰在剝蝕土壤和搬運泥沙能力，比單獨運用徑流深或洪峰流量更加合理。 -
Abstract : based on the data from the runoff plots, analyzed on the regularity and affected factor of the runoff and sediment yield in the farmland with different underlayer condition in the loess hilly areas of changwu county, shaanxi province, and point out that the main factor which affect the runoff and sediment yields in the farmland of the loess hilly areas are the intensity of precipitation, the time of precipitation, slope and the mulching condition
文摘:以徑流小區的觀測資料為依據，對陜西長武不同下墊面條件農田產流產沙規律及影響因素進行了分析，指出降雨強度、降雨歷時、坡度和覆蓋條件是影響黃土溝壑區農田產流產沙的最主要因素。 -
The paper analyzes and summarizes the following laws of distinctive sediment yield produced in storm floods of the region based on predecessors ' study : storm is the main dynamic force of erosive sediment yield and storm, flood and sediment exist an inevitable relation ; the flood occurring time is concentrated with high peaks and huge volume, suddenly rising and suddenly falling and has decisive influence to the formation of a major flood peak in the middle yellow river ; the main reasons of concentrated coarse sediment of the river is severe erosive sediment yield, strong sediment transporting capacity and high sediment concentration ; the important influence of frequent or continued storm floods happened in he - long reach especially in coarse sediment concentrated region to the sediment transport of the yellow river and ; along with the increase of harnessing, regional flood trend is becoming smaller but the variation of sediment quantity is not obvious and the reaction of peak discharge and flood runoff of majority tributaries are not sensitive, showing that a general and normal engineering works can not effectively control regional major floods especially the sediment of an extraordinary flood
摘要在前人研究的基礎上分析總結了該區特有的暴雨洪水產沙規律：暴雨是侵蝕產沙的主要動力，暴雨、洪水、泥沙之間存在著必然的關系；洪水發生時間集中，峰高量大，暴漲暴落，對黃河中游大洪峰的形成具有決定性影響；侵蝕產沙強烈而粗泥沙集中，輸沙能力強，洪水含沙量高，是黃河粗泥沙的集中來源地；河龍區間特別是粗泥沙集中來源區頻繁或連續的暴雨洪水對黃河輸沙有重要影響；隨著治理水平的提高，區域洪水有減小趨勢，但泥沙量變化不明顯，大部分支流的洪峰流量、洪水含水量反應不敏感，說明一般規模和水平的治理工程還不能有效控制區域大洪水特別是特大洪水的泥沙。 -
So studying water erosion and probing the laws of sediment yield, have significant production practice meaning to the prevention and cure for soil erosion and all kinds of silt disaster
因此開展水力侵蝕的研究，探索水力侵蝕產沙規律，對于土壤侵蝕的防治和各類泥沙災害的治理，具有極大的生產實踐意義。 -
Coupling vegetation dynamics at multiple scales is essential to explore the mechanisms of water and sediment yield response to vegetation changes such as vegetation reestablishment, development, succession, distribution, and management practices - we reviewed literature on advances in studying the processes and mechanisms of the vegetation influence on runoff and sediment production in relations to vegetation growth, vegetation succession, vegetation patterns and distribution, as well as afforestation and deforestation
由於植被自身的生長發育以及受自然因素和人為干擾的作用，植被變化具有多尺度性；由於受流域水文環境的異質性和水文通量的變化性的影響，流域水文過程也同樣具有多尺度性。 -
Analysis of water and sediment materials from main hydro - stations in the upper reaches of the yellow river in qinghai province showed that, the area in the upper reaches of the yellow river was only 23. 4 % of the total yellow river basin, while its runoff was 47. 5 %, and sediment yield was only 3. 86 % of that of the whole basin, so it was a major area of water production and supply
利用青海境內黃河上游主要水文測站的資料，對境內水沙來源及組成進行了分析，認為該區面積只佔黃河流域面積的23 . 4 ，而徑流量佔47 . 5 ，輸沙量只佔3 . 86 ，是黃河的主要產流區和水量供給地之一。 -
The runoff and sediment yield is affected by the process of rainfall and the function of water and soil conservation measurement
棄土場區域內產流受到降雨特徵和水保措施功能發揮的影響。 -
In the late part of the active developing period, the temporal variation of sediment concentration and sediment transport ratio of each rainfall can be expressed by exponent function and the variation presents quadratic polynomial function in the stable developing period. the spatial variation character of sediment yields with space of the experimental watershed model. the active position of soil erosion and sediment yield of the experimental watershed model changes from the downside to the upside with the developing process of the watershed model
流域模型侵蝕產沙空間變化特徵侵蝕產沙的活躍部位隨流域模型發育過程呈現由流域模型下部逐漸向上部發展特徵，其中流域模型下中部為發育初期時段和發育活躍時段侵蝕產沙的活躍部位，流域模型上部是發育穩定時段侵蝕產沙的活躍部位。 -
In the early developing period and active developing period, the downside and middle part of the experimental watershed model are the active positions of soil erosion and sediment yield respectively, and the upside of the experimental watershed model in stable developing period of the watershed model. the main gully plays dominant role in the sediment yield process of the experimental watershed model
主溝在流域模型侵蝕產沙過程中居於主導地位，主溝的產沙量占流域模型總產沙量比例保持在48 . 7 - 66 . 6之間，在主溝的泥沙沉積量所佔流域模型總泥沙沉積量的比例也保持在64 . 9 - 99 . 4之間。 -
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。 -
The paper introduces the methods of drying and pycnometer for sediment yield of total precipitation erosion of observation model and validates the reliability of the measurement through check tests of sediment concentration with different particle sizes
摘要介紹了測量模型次降雨侵蝕產沙量的烘乾法和密度瓶法，並通過不同粒徑組泥沙渾水含沙量的對比試驗，驗證了測量方法的可靠性。 -
Regional variation features of sediment yield intensity in the wei river basin
渭河流域侵蝕產沙強度的區域分異特徵 -
Effect of human activities and precipitation on sediment yield of the jialingjiang river
人類活動和降水變化對嘉陵江流域侵蝕產沙的影響 -
A primary discussion of soil erosion and sediment yield models of small watershed in lizikou of jialingjiang river
嘉陵江李子口小流域侵蝕產沙模型初探
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