runoff erosion 中文意思是什麼

runoff erosion 解釋
徑流侵蝕
  • runoff : 降雨徑流
  • erosion : n. 1. 腐蝕,侵蝕(作用)。2. 【醫學】糜爛,齒質腐損。
  1. 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 % 。
  2. Study on automatic measuring system of basin soil erosion and runoff process

    流域土壤侵蝕及徑流過程自動測量系統研究
  3. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀,本文借鑒眾多學者的研究方法和觀點,在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地,在玉米區進行了不同數量的施肥,通過野外試驗,採集一年自然降雨產流及泥沙樣品,同時採集降雨前後的耕層土壤樣品,研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響,結果表明:土壤侵蝕和氮磷的流失受諸多因素的影響,降雨量、降雨強度是重要因子,而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子,特別是暴雨,暴雨徑流中氮磷濃度較平時高得多;隨作物生長,覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異,氮磷流失都表現為顯著的差異。
  4. Experimental study on upslope runoff effects on ephemeral gully erosion processes at loessial hillslope

    黃土坡面匯流匯沙對淺溝侵蝕影響的試驗研究
  5. Generally the rainfall on steeplands may be no more erosive than that on nearby lowlands, the resulting runoff and eroded sediments will move much more quickly on steep slopes, and will provoke more severe rill and gully erosion ( source : fao soils bulletin 75 )

    通常坡地的降雨侵蝕比附近的低地更嚴重,這樣坡地的流失物和侵蝕的沉積物移動更快,引起河流侵蝕。
  6. Gully erosion, which is universal on original lands, but also the special forms, for example, hole erosion gravel erosion debris slide and debris flow, which is unusual in loess area, ( 2 ) based on a long - term fixed point experiments in proving ground of the south stackpile, the soil erosion factors have been researched quantitatively, the runoff and erosion affected factors have been made sure and the experiential models of producing water and soil have been taken in newly - constructed stage, early stage and later stage of reclamation

    確定南排土場原地貌的水蝕模數為3700 4400t km ~ 2 ? a ;在排土場新造地貌上,擊濺、面蝕、細溝侵蝕、淺溝侵蝕、沉陷侵蝕、砂礫化面蝕、土砂瀉溜和坡面泥石流等水土流失形式出現頻率和發生程度都明顯強于原地貌。 ( 2 )以南排土場徑流試驗場長期的定位觀測為基礎,對排土場未復墾時期、復墾初期、復墾後期的土壤水蝕影響因子進行定量研究,確定了徑流和土壤水蝕的主要影響因子及其臨界值,建立了產流產沙的經驗模型。
  7. It can not only meet the need of water saving, water holding, drought resistance, but also make the best use of local rainfall runoff and efficiently reduce soil erosion. the research on it ' s theory and appliance will promote the development of orchard water saving irrigation and ecosystem and project of soil and water conservation

    蓄水坑灌法是一種適合於我國北方山丘區的果林灌溉新方法,既可滿足節水、保水、抗旱的要求又能充分利用當地降雨徑流和有效控制水土流失。對該方法進行理論和應用研究將對我國北方地區果林節水灌溉和水土保持與生態建設起到積極的促進作用。
  8. According to the investigation of the dykes in xinxiang reach of the yellow river, the annual volume of soil erosion caused by storm runoff amounted to 0. 07 million cubic kilometres

    根據我們對新鄉地區內沿黃大堤的調查,每年暴雨徑流侵蝕大堤的土方量約達7 104m3以上。
  9. In order to eliminate the hidden trouble caused by storm runoff erosion, the mechanism of the storm runoff erosion on the slope surface of the yellow river dykes has been studied in this thesis. through the simulation rainfall experiments and field observations, the formation mechanism of storm runoff scouring, rills and sockets have been opened up. meanwhile the possible control measures have been suggested

    為了防治黃河大堤由於暴雨徑流沖刷造成的不安全隱患,本文針對黃河大堤上的暴雨徑流侵蝕進行了實地設站觀測及室內模擬降雨侵蝕試驗,通過揭示大堤暴雨沖刷過程機理,查清水溝、水穴(浪窩)等的成因,提出相應的防治對策。
  10. It analyzes the hydrologic effect from the aspects of rainfall interception of plants, splash erosion reduction and surface runoff control, analyzes the mechanical effect from the aspects of tensile strength of single root of plant, root - soil interaction, root - soil composite and slope stability and finally approaches to the future development orientation of slope protection by vegetation

    從植物的截留降水、削弱濺蝕和抑制地表徑流等方面分析了植被護坡的水文效應,並從植物單根抗拉強度、根土相互作用、根土復合體及邊坡穩定分析等方面分析了植物護坡的力學效應,最後探討了植被護坡的發展方向。
  11. In the paper, we firstly acknowledge the characteristic of rainfall kinetic energy and runoff energy, current state and the development of erosion dynamic process by consulting a large number of domestic and foreign literature datum. on the basic, we systemically coordinated the eroded datum of runoff plots of soil and water conservation stations at xifeng, tianshui, suide, and chunhua et al

    本文首先在查閱了大量國內外文獻資料,全面了解降雨動能與徑流能量的特性及侵蝕動力過程等方面的研究現狀及最新進展的基礎上,系統整理了西峰、天水、綏德及淳化泥河溝等水土保持試驗站的徑流場侵蝕資料。
  12. 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。
  13. 6. when the rainfall frequency was 83. 11 % that belong to low energy of rainfall, vegetation cover rate that was bigger than 80 % can totally diminish runoff energy, and prevent soil erosion. with eroded rainfall energy increasing the cut rate of vegetation for erosion gradually weak

    ( 6 )對于發生頻率為83 . 11的低動能降雨,植被蓋度80可完全削減徑流能量,防止水土流失;隨著侵蝕性暴雨動能的增加,植被對徑流能量的削減率逐漸減弱。
  14. With the same slope gradient and slope length, the soil erosion on the dyke slope caused by the runoff mainly depended on the factors such as the runoff, flow velocity, rainfall intensity, rainfall duration, as well as the up - slope drainage area of dyke slope

    坡度、坡長一定時,徑流對戧坡的侵蝕主要與徑流量、流速、雨強、降雨歷時,戧坡以上匯聚水量或集水面積有關。
  15. Based on the analysis of the data and information from the field observations and lab experiments, the results were as follows : ( 1 ) the results of the simulated rainfall and runoff erosion experiments in lab. under the design experiment conditions including the constant rainfall intensities of 1. 0, 2. 0, 3. 0mm / min and the rainfall durations of 30, 70 minutes and with soil moisture content 9. 5 % or 10. 0 % for dry situation, as well as with the soil moisture content 19. 0 % or 20. 0 % for wet situation, the soil erosion increased nonlinearly with the rainfall intensity, and the rainfall duration. the results of the experiments indicated that the amount of soil erosion caused by the simulated rainfall and runoff on the dry - soil slope was more than that on the wet - soil slope

    通過實地觀測及室內試驗資料分析,得到如下研究成果: 1 、室內模擬降雨徑流對戧坡的侵蝕試驗研究結果在定雨強為1 . 0 、 2 . 0 、 3 . 0mm min ,降雨歷時30 、 70分鐘,干土含水量為9 . 5 10 . 0 ,濕土含水量為19 . 0 20 . 0的條件下,侵蝕量與雨強成非線性正比關系;雨強大,侵蝕量大;降雨歷時長,侵蝕量也大;堤坡含水量大時,侵蝕量小,堤坡含水量小時侵蝕量大。
  16. 3. through analyzing the erosion energy characteristic of different rainfall capacity, rainfall duration, and runoff depth classes, we draw that rainfall kinetic energy and runoff energy presented positive correlation with the rainfall duration. and presenting the fluctuation change with extension that rainfall duration ; runoff energy increase with increase of runoff depth

    ( 3 )通過分析不同降雨量、降雨歷時、徑流深量級中侵蝕能量特徵,得出降雨動能和徑流能量都與降雨量基本呈正相關;隨降雨歷時的延長呈波動性變化;徑流能量隨徑流深的增加而增加。
  17. The new research progress in the effect of forest on rainfall, interception annual runoff, was summarized. the main issues show that the most function of forest vegetation aims at protecting water resources and water environment, adjusting water amount, controlling erosion, decreasing run - off silt, decreasing maximum flow as well as increasing discharge of river in dry season and purifying water quality

    本文一方面通過介紹森林水文學的概念、研究進展和實際運用,分析了森林與水相互作用的特點,並從降水、截留、徑流等方面綜合研究森林植被在涵養水源、調節水量、減少徑流泥沙、降低洪峰、增加枯水期流量、改善水質等方面具有的重要功能。
  18. For this reason, our objective is the research of the mechanism of runoff generation and characteristics of moisture changing process of slope farming purple soil, accordding to the theory of hydrology and the intergrated - means of compined the hydrology with the peodology, because it is the basis of the studies : soil erosion and protection, farming - land water balance, non - point pollute, etc., and the direction gist of runoff arrange implement, solving water hazard and management of irrigation and fertilizer

    綜觀國內外有關研究,我們認識到對紫色土土壤產流和水分變化特徵的認識,是認識該區土壤侵蝕與保護、農田水量平衡、非點源污染等的機理和規律的基礎,也是解決該區水患問題、實施徑流調節而提高旱地的雨水利用程度,以及水肥管理等的基本科學依據。因此,以水文學原理為基礎,採取水文學與土壤學、地理學、水土保持學等相結合的途徑,研究紫色土坡耕地的降雨產流機制與產流後土壤水分的變化特徵,是具有新的科學價值和現實意義的。
  19. The hillslope erosion processes include soil separation, sediment transport and sediment precipitate, which these three process result from the rainfall splash erosion and runoff erosion. to study and analyze the happening and developing conditions of hydraulic, soil and terrain, and the mechanisms of transitions and influences of these processes each other is the prerequisite to set up physical model of soil erosion

    坡面侵蝕過程包括降雨濺擊和徑流沖刷引起的土壤分離、泥沙輸移和沉積3大過程,研究和分析這些過程發生、發展的水力、土壤、地形條件以及各過程間相互轉化、相互影響的機理,是建立土壤侵蝕物理模型的前提條件。
  20. Absolute amounts of soil erosion is not large for the falling gradient in black soil region, but the nutrient is high in erosion soil, the nutrient of erosion soil and runoff is high, which leads to soil fertility degeneration, while n and p nutrient pour into water with surface runoff, it leads to water nutrient enrichment and pollution, and becomes one of confined factors of water nutrient enrichment

    吉林農業大學碩士學位論文黑土地表徑流氮磷養分特徵及其與肥力退化的關系由於黑土耕作區坡度平緩,土壤侵蝕的絕對量並不很大,但由於土壤中攜帶的養分高,養分流失的較多,流失的養分將引起肥力的退化,而且氮磷等養分隨地表徑流流出匯入各種水體,引起水體富營養化和污染,成為水體富營養化的限制因子。
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