river runoff 中文意思是什麼

river runoff 解釋
河川徑流
  • river : n 1 河，江。 Rriver Thames 或 the R Thames 泰晤士河； the Hudson R 〈美國〉哈得孫河。 the Rriver ...
  • runoff : 降雨徑流
  1. The decline of river runoff indicates the obvious trend of environmental aridity in the region

    流域河川徑流來源於降水，全球變化是河流徑流量變化的背景。
  2. Also to get some new conclusion of glacial lakes burst floods, in possibility study of glacial lake burst, and in qualitified study of the safety of the glacial lakes. the first character of this paper introduce the background of this paper, set the goal, content and methodlogy of the study work in this paper. the second chapter of this paper focuses on the meterological character, runoff composition character, why not correspondency of ratio of rainfall and runoff in same period to annual value for nianchu river, lasha river, niyang river and the middle reach of yalu - zangbu river

    本文第一章介紹了課題的研究背景，提出了研究目標、內容和方法；第二章重點分析了年楚河、拉薩河、尼洋河和雅魯藏布江幹流中游段的氣候特徵，徑流組成特性，同期降水、徑流占年總量比例的不對應特性和原因，徑流年內年際變化規律及徑流深分佈特性，分析了天然洪水的特點和洪水參數；第三章介紹了冰川終磧湖的特點，結合已經發生潰決的冰川終磧湖的有關調查資料和考察資料，分析提出了危險冰湖判別指標和發生潰決的氣候條件、周期性特徵，提出了冰湖潰決洪水的計算途徑。
  3. Firstly established plural linear regression model to estimate the river runoff uninfluenced by human. compare with the record of hydrology examinition stations, then analyze the influence degree of human factors, namely the diference of the two river runoff account

    通過多元回歸方程預測自然狀態下陜甘寧地區河川年徑流量，對比實測徑流量來分析人為因素對徑流量的影響程度。
  4. Separately speeking, for outward rivers in cansu ( either to the yellow river or to the yangtze river ), the allocable water resources are mainly the river runoff and groundwater, the priority sequence of water resources allocation would be : the water use for maintenance of local plantation including the environment - oriented and irrigated ones, water use for social and economic activities, and the runoff to lower reaches

    外流河流域的降水首先為當地的植被耗用，剩餘的才形成可供開發的地表徑流和地下水；水資源配置的順序是：當地植被耗水，當地社會經濟用水，最後形成干支流出境的徑流供中下游地區使用。
  5. The updated model with complete forcing has excellent ability of simulation and forecast. to study yellow and east china circulation in winter and summer, based on long - term ocean observation data of january and august, the fine structure of yellow and east china seas circulation is diagnostically calculated with complete forcing ( including surface wind stress, boundary transportation, baroclinic effect, tide, changjiang river runoff ) in winter. the influences of factors on main circulation patterns are discussed respectively

    對于冬季和夏季海洋環流的情況，在多年觀測的溫鹽資料基礎上，分別以1月份和8月份代表黃東海冬季和夏季的情況，以月平均大氣風應力、邊界流輸送、溫鹽斜壓效應、潮汐、長江口徑流等作為強迫條件，對黃東海環流的細微結構作了高分辨的三維數值模擬，探討了各因子對冬、夏季主要流系的動力學作用。
  6. Moreover, the aid of gray interrelation analysis and the plural regression model are applied to discuss the reason of runoff decrease and abrupt changes. for over 40 years, under the background of climatic warming, river runoff of shaanxi - gansu - ningxia region has showed a generally reduction trend

    40多年來，在氣候暖干化的背景下，陜甘寧地區地表水資源變化總趨勢為減少，表現為自1950年代末以來河川年徑流量的顯著減少傾向，而且貧水化也日趨嚴重。
  7. Study on relation between underlying surface and river runoff

    下墊面與河川徑流的關系研究
  8. In order to calculate depth - averaged two - dimensional ( 2 - d ) suspended sediment transport under waves and currents in the yangtze estuary, a numerical model system is developed. four models, a 2 - d compound fluid model including wind, waves, tides and river runoff, a swan wave model, a wave - current bottom boundary layer model and a 2 - d suspended sediment transport model are integrated

    本文建立了一個用於波?流共同作用下長江口平面二維懸沙計算的數值模型系統，主要由四部分組成，即考慮風、浪、潮、徑流的二維復合流場模型、 swan海浪模型、波?流相互作用的底邊界層模型以及二維懸沙輸運模型。
  9. Normally water resources is affected by human activities and climatic change, but it is affected mainly by climatic change in runoff forming regions located in the high and middle mountainous area in the northwestern china. river runoff in the hexi inland arid region all originates from the qilian mt. area and the change of mountainous runoff resulted from global weather warming up and will bring an important effect to the development of society and economy in the hexi region. so the response on mountainous runoff and its changing trends are analyzed on the basis of the measured data of precipitation, air temperature, and discharges observed from some weather and hydrologic stations in the studied area. the results show that seasonal variation of mountainous runoff in the hexi inland region is mainly affected by the river ' s geographical location and supply source, and the yearly change by precipitation and that in the west of the region by air temperature besides precipitation. there are some obviously regional differences in the influences of climatic change on surface runoff in the hexi inland arid region, that is, rivers runoff in the west of the hexi area have been increasing and rivers in the east part have been decreasing, and the rivers runoff in the central part presented slowly increase trend, such as the heihe river, but it is not quite obvious

    一般情況下，水資源的變化主要受氣候變化和人類活動的影響，但在位於我國西北內陸乾旱地區的中高山地帶，徑流的形成主要受前者的影響.甘肅省的河西內陸乾旱區是該省重要的工農業生產和經濟開發區，這里各項社會和經濟活動與出山徑流的變化都有著十分密切的關系.因此，筆者根據有關水文氣象臺站的降水、氣溫和徑流觀測資料，分析了以黑河、昌馬河、西營河等主要河流為代表的河西內陸區出山徑流的變化特徵與規律.結果表明，河西內陸區出山口徑流的季節變化主要受地理位置和河流補給來源的影響，而年際變幅則受山區降水量年際變化及變幅的影響十分明顯.目前，梨園河以西河流水量處于上升階段，梨園河以東的河流則處于下降的階段;以黑河幹流鶯落峽水文站年徑流為代表的走廊中部地區的出山口徑流正處於1990年開始的枯水段的上升段.但總體而言，河西內陸乾旱區出山口徑流的變化相對比較穩定.預計今後若干年內，河西內陸乾旱區東段河流出山口徑流的變化以偏枯為主，中段、西段河流出山口徑流的變化以平水或平水偏豐為主
  10. Due to the influence of climate drought and human activities, the ecological environment of qinghai province is in an increasingly grave condition, namely, climate abnormal events occurring frequently, grassland degenerating, ground sanding, glacier shrinking, water level of lakes descending and river runoff decreasing, and so on. in the basis of extensively collecting and analyzing the data of qinghai ecological environmental factors such as climate, water resource and grassland resource etc., the further basic research is performed on the ecological environment characters of main climate factors, surface runoff, water resource, lcc and their correlation to coordinate with the basic, strategic and precursory research for the development of china west part and provide the scientific foundation for corresponding development both ecological environment and social economy, and persistent utilization of natural environment resource

    本研究針對當前在氣候乾旱化和人類活動的共同影響下青海省生態環境中氣候異常事件即氣象災害頻繁發生、草場退化、土地沙化、冰川萎縮、湖泊水位下降和河流流量減少等生態環境退化現象日益嚴重的實際，在廣泛收集和整理青海省氣候、水資源、草地資源等生態環境因子基礎資料的基礎上，對青海的主要氣候要素、地表徑流、水資源、植被的演替及其相互間的關系等主要生態環境變化特徵進行了基礎性的研究。
  11. At present domestic and international research work of river hydrology system responses to global climatic change focus on the change character of river runoff, and the study scope is mostly macroscopic of nation or large district, and few study involve in the reason of local river runoff change

    目前國內外關于河流水文系統對全球變化的響應的研究較多地集中在流域徑流量的特徵變化上，范圍上則是宏觀研究大區域或者小流域或者整個國家范圍內徑流量的多少及趨勢，對於一個中尺度區域內河流徑流量序列變化的原因探討較少。
  12. Analysis proved that impact of human activities on malianhe river runoff is still uncertain from the end of 1980 ' s to 1990 ' s. since middle period of 1990 ' s, river runoff has been reduced by human activities constantly, and maximum in 2000. the degree of human activities " influence in qingshuihe river runoff aggravate by time

    馬蓮河數據分析表明，在1980年代末到1990年代初，馬蓮河流域人類活動對徑流量的影響有正有負，即人為因素的影響尚不明確，但從1990年代中期以來，人類活動的減流負面作用不斷增強， 2000年達到階段最大值。
  13. The influence of human activities on river runoff rises notably

    無定河流域河川徑流的人類活動影響程度在顯著上升。
  14. These models can be used to estimate impact of control measures on river runoff, and to what degree these measures effect the runoff production in river catchments at any given year

    該模型能分離水土流失綜合治理對河川徑流量的作用大小，並可估算任一年份水土保持措施對降雨產流量的影響程度。
  15. Qinhuangdao climate change ' s impact on river runoff volume and countermeasures

    秦皇島市氣候變化對河流徑流的影響及對策
  16. So further study on model of influence of human activities on river runoff change and simulation in different regions is necessary

    所以人類活動因素影響下河流徑流量變化模型及模擬還有待于針對不同地域、不同時空尺度做進一步的深化研究。
  17. The analysis on the change characteristics and driving forces of wudinghe river runoff

    無定河年徑流量變化特徵及人為驅動力分析
  18. Human factor have made the river runoff reduce more and more and they are becaming the driving force

    人為因素使無定河流域徑流量減少量越來越大。
  19. Although there are several studies on influence degree of human factors on river runoff, generally acknowledged model to appraisal the weight of human activities has not show yet at present because the regional natural conditions differ widely

    國內雖有一些衡量人為因素對徑流量影響程度的研究，但由於所處地區自然條件大不相同，所以目前尚無公認的評價人類活動因素在徑流量變化原因中所佔比重的模型可資借鑒。
  20. Global climatic change would cause the response of ecosystem. in arid and semi - arid regions such as shaanxi - gansu - ningxia region, what is the response of regional river runoff ? would it cause river runoff to increase or reduce

    陜甘寧地區處于對全球氣候變化較敏感的中緯度地區，是東亞夏季風邊緣帶，氣候乾旱不穩定，其主體部分為黃土高原中部的丘陵溝壑區，是世界上水土流失最嚴重的地區，生態環境十分脆弱，目前氣候暖干化趨勢明顯。
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