降雨侵蝕作用 的英文怎麼說
中文拼音 [jiàngyǔqīnshízuòyòng]
降雨侵蝕作用
英文
rainfall erosion- 降 : 降動詞1. (投降) surrender; capitulate 2. (降伏) subdue; vanquish; tame
- 雨 : 雨名詞(從雲層中降向地面的水) rain
- 侵 : Ⅰ動詞(侵入) invade; intrude into; infringe upon Ⅱ形容詞(接近) approaching Ⅲ名詞(姓氏) a surname
- 蝕 : Ⅰ動詞1. (損失; 虧耗) lose 2. (腐蝕) erode; corrode Ⅱ名詞(天體現象) eclipse
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 降雨 : rainfall降雨持續時間 time of the duration of rainfall; 降雨歷時 rainfall duration; 降雨時數 rainf...
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On the formation mechanism, the rills were mainly formed by the concentrated action of the runoff on dyke slope, while the formation of socket mainly depended on surface runoff, subsurface flow and the existing defects within the dykes such as crack, mouse hole, fox and brocks dens
在成因上,前者主要是降雨形成超滲地面徑流的集中對戧坡的侵蝕作用而形成;後者主要與坡面徑流、壤中流,以及土堤的薄弱點(如裂縫、鼠洞、狐1一灌洞等)有關。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。There was a highly significant correlation between the highest rain intensity in 30 minutes ( abbreviated as i30 ) and rv, and no significant correlation between rainfall capacity and 130. the soil conservation effects were better than the water conservation effects. the order of importance for water and soil conservation effects in different treatments was eragrostis curvula, kummerowia atriata, ixeris denticulata, with the most significantly positive correlation between each runoff and soil loss
與裸坡相比,嚴重侵蝕地上植物籬笆的保土效果比保水效果更明顯,其中畫眉草( eragrostiscurvula )水土保持能力最強,雞眼草( kummerowiaatriata )次之,苦蕒菜( ixerisdenticulata )只具有保土作用;同時每次降雨產生徑流量與侵蝕量之間為極顯著相關關系。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。( 2 ) the results of the rainfall - affected runoff scouring experiments in lab. when the rainfall intensity was less than l. omm / min, the soil erosion caused by the combination of rainfall and the upslope runoff was more than that caused by only the simulated rainfall. when the rainfall intensity was more than 2. 0mm / min, the upslope runoff strengthened the effect of the runoff yielded in the local area on the dyke slope surface, and the effect increased with an increase of rainfall intensity
2 、室內模擬降雨+放水沖刷試驗結果雨強小(如i 1 . 0mm min )時,上游注入水量對戧坡侵蝕作用比降雨在戧坡上所產生徑流的侵蝕大;雨強大時( i 2 . 0mm min ) ,上游水量下泄與當地降雨徑流一起增強對戧坡面的侵蝕作用,雨強越大,侵蝕作用也越大。On the development process, the rills were influenced by rainfall runoff on slope, but the sockets were the result of the long - term repetitious action of rainfall and runoff and subsurface flow
在發展過程上,前者受降雨徑流侵蝕作用時間集中;後者是在長期多次降雨形成地面徑流和壤中流侵蝕的共同作用下,逐漸發展起來。( 1 ) in newly - constructed stage and early stage of reclamation, the most important factor of runoff is 30min rainfall intensity. in later stage of reclamation, the most important one is 45min rainfall intensity. and the runoff capacity is the most important influence factor to soil erosion always ; ( 2 ) on the certain degree, loosening surface has an active function to infiltration condition but not to conserve soil ; ( 3 ) the most runoff is formed on platform of stackpile and the soil erosion often happens in the slope ; ( 4 ) stone - soiled dumps have an advantage over soil at respect of erosion resistance so that soil is not adapt in covering slope ; ( 5 ) grass has a better role in conservation of water and soil than arbor in early stage of reclamation ; ( 6 ) arbor - arboret - hemp mix is the best model for conservation
結果顯示:在未復墾時期和復墾初期, 30min降雨強度對徑流影響最大,復墾後期徑流與45min雨強相關性最強,而徑流量對土壤侵蝕量的影響始終最大;通過疏鬆地表巖土只在一定程度上改善地表的入滲條件,並不能起到保土的作用;平臺為徑流的主要形成區,而土壤侵蝕主要集中在斜坡;土石混排坡的土壤抗蝕性比覆土坡的要大得多,在排土場形成過程中不宜用厚層黃土覆坡;在復墾初期,純草模式水土保持效果明顯好於純喬模式。Through rainfall simulating under laboratory, and making slice of sampling, the project researched in the soil crust development, and studied the dynamic rule of erosion factors which were raining and soil erosion factors during soil crust development. in the same time, the research was to find the critical condition of all factors in the process of soil crusting, and to filter the critical factor that could affect soil surface crust
本文採用人工模擬降雨方法,通過采樣製作土壤切片,觀察分析表土結皮在不同條件下發育的微形態特徵,研究降雨、土壤等侵蝕產沙因子在表土結皮發育過程中的動態響應規律,界定表土結皮發育過程中各因子的臨界條件,篩選有關土壤顆粒組成、結構特徵等物理化學性質對表土結皮形成影響的關鍵因子。Relationship model among topography fractal dimension, runoff eroding power and sediment transport modulus was established after proposing topography fractal dimension as comprehensive quantitative index for topography by replacing rainfall erosivity with runoff erosivity. based on this model, relationship between watershed topography parameter and sediment yield were setup using the observed data from cha bagou watershed, together with parameter calibration
提出了以地形分維數作為地貌形態綜合量化的指標,以徑流侵蝕力代替降雨侵蝕力的思想,建立了模型流域地形分維數、徑流侵蝕力與輸沙模數之間的關系模型;在此基礎上,應用岔巴溝流域實測資料,建立了流域地貌形態參數與侵蝕產沙關系模型,並進行參數率定和檢驗。On the basis of consulting a large number of literatures domestic and aboard, the present situation and latest development of hydrodynamic characteristics of overland flow and slope erosion dynamic process were reviewed. aiming at revealing the effect of rainfall splash intensity on hydrodynamic features of sheet flow and slope erosion, with a combination of runoff experiment and simulated rainfall experiment with a fixed intensity, applying hydrodynamic and erosive theory, the effect of rainfall on overland flow velocity and the influence of rainfall splash intensity on hydrodynamic features ( such as velocity, flow depth, flow patterns, resistance ) of sheet flow on slope and the influence of rainfall splash intensity on the overland flow sediment contain was researched
本文在查閱了大量國內外文獻資料,全面了解了坡面流水動力學特性及坡面侵蝕動力過程等方面的研究現狀及最新進展的基礎上,以揭示雨滴打擊動能對坡面薄層水流水動力學特性及坡面侵蝕的影響為目標,採用水槽放水試驗和定雨強模擬試驗相結合的方法,運用水動力學與侵蝕理論,研究了降雨對坡面薄層水流流速的影響,雨滴打擊強度對坡面薄層水流流速、水深、流態、阻力等水動力學參數的影響,雨滴擊濺作用對坡面流泥沙含量的影響。分享友人