河流發生型 的英文怎麼說
中文拼音 [héliúfāshēngxíng]
河流發生型
英文
genetic type of stream-
With advantageous water, soil and organisms resources, the dadiwan culture, the yangshao culture, the longshan culture and the xiashang culture developed, original settling - down dry farming culture formed gradually, which laid sound foundation for agriculture civilization in the weihe valley ; among which, land use of arable farming was replaced largely by pastoral farming in the mixed area of agriculture and animal husbandry in north weihe region between 4 000 - 3 000 a b. p., because of dry and cold weather resulted in environment deterioration and soil degradation. at the beginning of 3 100 a b. p.,
在8500 3100abp全新世大暖期，渭河流域水、土、生物資源條件優越，人類發展了大地灣文化、仰韶文化、龍山文化和夏商文化，逐步形成了原始定居旱作農業類型文化，從而奠定了渭河流域農業文明的基礎，其間在4000刁000ab衛，渭河流域北部的農牧交錯帶，由於氣候的逐漸冷干化，導致水、土、生物資源退化，造成旱作農業土地利用方式由遊牧業取而代之。Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task
文摘:本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12The restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task
本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12( 2 ) there is stage of soil formation from the evolution of pedogenic environment in the weihe valley during holocene. soil formation shows the law of evolving from warm and wet strong soil formation period to cold and dry dust deposition period ( weak soil formation period ) and to warm and wet strong soil formation period again. the loess - soil sequence is a compound soil sectional system of different kinds of soil evolution under different bio - environment and pedogenic processes
（ 2 ）通過對全新世渭河流域成壤環境演變問題的討論，揭示了全新世渭河流域土壤的發育具有階段性，表現為由溫濕的強成壤期向冷乾的沉積期（弱成壤期）演變、再向溫濕的強成壤期演變的規律；黃土一古土壤序列是不同生物氣候環境下、不同成壤過程發育的不同土壤類型演替而形成的復合型土壤剖面體系；而且由於冬夏季風環流及其環境效應在空間上的差異，使得復合型土壤剖面體系也存在著南北差異。The concept of this work comes from the riverbed and the nourishing effects the river plays in world cultures. symbolizing riverbeds in nature and adding a touch of leisure life in modern society, the five granite beds rest on a miniature course of the keelung river with small current of water running on each one. the sandblasted forms of fruits and maple leaves recall the importance of environment
本作品河床，以大河孕育文化做為作品創作發想點，加入現代社會的生活休憩概念，將五組象徵大自然中河川交匯的床型花崗巖雕塑，架設于卵石所鋪設而成的基隆河之上基隆河的河道造型則保持截彎取直前的原貌，並以少流量的水流，薄薄地覆蓋五組床型雕塑品，床板上散落的楓葉與果實，則象徵環保理念對大自然保育的重要性。To elucidate the antigenic drift and evolution of h9n2 subtype avian influenza viruses ( aivs ), five isolates from the north of henan province during 1998 - 2002 were compared and analysed by cross - hemagglutinin inhibition test ( hi ), cross - virus neutralization test ( vn ) in the chicken embryo and chicken embryo primary kidney cell ( cek ) and cross protection against challenge infection test
為了探討h _ 9n _ 2亞型禽流感病毒的抗原性有否發生漂移，本研究從生物學角度和ha基因分子水平上對1998 ? 2002年間在河南省豫北地區分離到的5株h _ 9n _ 2亞型禽流感病毒的抗原性變化進行了比較和分析。The main characters of the river - valley landforms are followed : the outstandingly longitudinal range - gorge landforms constitute the unique view of three parallel rivers ; the relative highness difference of the landform is great and the river valley cut deeply ; the formation and evolution of the river - valley landforms are obviously controlled by the geological structure ; the landforms types and the various characters of the landforms combination in the drainage area are prominent ; the geological environment has relatively strong frangibility ; the branches riverhead of the river - valley mostly come from high mountains and lakes, and the river - valleys of the branches along the banks have disproportional distribution
其河谷地貌的主要特徵有：突出的縱向嶺谷地貌，構成了少有的三江併流奇觀；地貌相對高差大，河谷深切；河谷地貌形成演化發育明顯受地質構造控制；流域范圍內地貌類型和地貌組合多樣化特徵突出；地質地貌環境具有較強烈的生態脆弱性；河谷支流水源多發源於高山湖泊，兩岸支流河谷分佈不均衡。Because it is relatively reliable in both theoretical and practical research, the rigid bed model, which is without deformation under the action of river flows, is widely used in the river hydraulic simulations. the advantages of visibility and high accuracy of the rigid bed models are evident for the complicated boundary conditions of rivers
在河道水力模型中，尤以河床在水流作用下不發生變形的定床模型應用最為廣泛，在理論上和實踐上都已比較成熟，當河段的邊界過于復雜時，其直觀、準確的優越性更為明顯。The results indicated that with the change of water and sand condition and the altitude of tongguan and the development of the industry and agriculture in recent decades, the water environment of wei river had changed largely, which were shown as follow : annual runoff and seasonal flood decreased sharply ; water stream of large discharge decreased and the range of runoff decreased greatly ; sediment load per year decreased generally, sediment concentration of water increased, and the sand silting up was serious ; water channel swung and shrank, and water regime deteriorated ; frequencies of big floods decreased obviously, and hyper concentrated flood increased obviously ; water levels of the same runoff rose universally, and the frequencies of the floods increased and aggravated ; water pollution was very serious
結果表明，近期隨著水沙條件、潼關高程等的變化及工農業的發展，渭河的水環境發生了巨大變化，表現在年水量及汛期水量銳減；大流量級水流出現次數減少，水量減少幅度大；年輸沙量總體減少，河水含沙量增大，泥沙淤積嚴重；河道向擺動型發展，河道萎縮，河勢惡化；大洪水發生的次數顯著減少，高含沙小洪水明顯增多；同流量洪水位普遍抬高，洪災發生次數增加，洪災加重；水質污染極為嚴重。Guantang hotspring leisure center is invested and built up by the wanquan hotspring tourist development district of qionghai, collecting the meeting reception, hot spring and recuperate, recreation and spending holidays, amusement fitness, table delicacies keep in good health in order to travel in one degree of false hotels integratively and approved by country and four - star concerning foreign affairs. with chinese style flower garden organic an organic whole of linking of pavilions, terraces and open halls such as the main building, guest room, villa, bowling alley corridor, it is unique to build, the style is romantic
瓊海官塘溫泉休閑中心官塘溫泉休閑中心由瓊海萬泉河溫泉旅遊開發股份有限公司投資建造，是集會議接待溫泉療養休閑度假娛樂健身美食養生為一體的經國家批準的四星級涉外旅遊度假型酒店。整體建築環抱著曲線流暢，寬敞別致2700的大型溫泉泳池，並以中國式庭園廊道將主樓客房別墅保球館等亭臺樓閣有機的連成一體，建造獨特，風格浪漫。The impacts of soil and water conservation on river flow and soil - hydrology of jia - lu - he, tu - wei - he, pian - guan - he and qiu - shui - he catchments have been analyzed by the simulation and on - spot measuring methods according to data of during 1950 ' s to 1990 ' s. the selected catchments of the above four all are in the key area of soil and water conservation on the loess pleatu. the main results are as follows. the trend, reasons and critical year of annual river flow " change have been researched by rank correlation and maximum deviation division
本文以黃土高原水土保持重點區的佳蘆河、禿尾河、偏關河和湫水河等四條流域為代表，採用定量與定性、模型模擬與實測對比相結合的方法，系統分析了上世紀50 90年代時段內水土保持對河川徑流及土壤水文的影響，取得主要結果如下：採用秩相關和極差分割等定量評價方法，分析了四條支流徑流量變化趨勢、變化原因及發生明顯變化的臨界年份。The calculated results of the model indicated that from year 2000 - 2020, the groundwater usage keeps a tendency of increase, while the amount of water introduced from yellow river is decreasing. this result is not only in favor of improving the eco - environment of yin - chuan basin, keeping the sustainable development of society and economy, but also play an important role in solving the problem of drying up of yellow river in downstream areas
根據模型的運行結果，直到2020年，在總用水量未超過區內水資源允許使用量的前提下，盆地內的地下水開采量呈增長趨勢，而地表水引用量則呈下降趨勢，這不但有利於銀川盆地生態環境的改善，保持當地社會經濟的可持續發展，而且對于解決黃河斷流問題也有重要的意義。Based on the direction of sources and the ratios of sandstone to formation of sedimentary rocks, together with the sedimentary structures and textures, paleocurrent direction and the characteristics of paleontology, etc., the planimetric maps of sedimentary facies of each stages in the studied area are compiled in order to recognized the extension of dominant facies and the evlotionary history of sedimentary environment, hi the stage of benxi and taiyuan, lagoon - tidal flat sediments are widespread in the area, and the deposits of estuary, lagoon and small delta in the northwest margin of ordos
以物源方向和沉積巖砂地比值為基礎，結合沉積結構構造、古水流方向及古生物特徵等，編制了研究區各期次的沉積相平面圖，以識別優勢相展布和沉積環境演化。本溪期和太原期研究區瀉湖?潮坪沉積分佈廣泛，西北緣發育河口灣、瀉湖及小型三角洲沉積。The axial flow type turbines manufactured by the ganfa, are raging from 3 to 45m in water head, 100kw to 30mw in capacity and 0. 8 to 6m in runner diameter. in recent years, ganfa gained fast growth in this type of turbines. since manufacturing type zz560 - lh - 250 3. 2mw units for the nanhe power station in jiangxi, ithas also manufactured type zdjp502 - lh - 275 5. 5mw units for the niubilong power station in chongyi, jiangxi, and zd680 - lh - 420 4. 5mw units for the shamaoshi power station in shanghang, fujian
我公司軸流式水輪機適應水頭345m ，轉輪直徑0 . 86m ，容量10030000kw ，自80年代為江西南河電廠生產zz560 - lh - 250型3 . 2mw機組以來，軸流式機組有較快的發展，近年來又先後為江西牛鼻壟電站設計製造了zdjp502 - lh - 275型5 . 5mw機組，為福建上杭電站設計製造了zd680 - lh - 420型4 . 5mw軸流式機組。As we all know, the heat transfer of geothermal heat exchanger ( ghe ) is affected by a lot of factors, where groundwater advection has a comparatively great impact indicated by experimental data. while almost all the design tools for ghe are based on principles of heat conduction and rely on some estimate of the ground thermal conductivity and volumetric specific heat. however, the large part of vertical u - type pipe lies in the saturated soil, especially in zones along the coast or with plentiful groundwater, which will be affected by groundwater advection greatly
但是對於垂直u型埋管來說，管段大部分位於土壤飽和區內，實際上其穿透的地層中總是存在著地下水的滲流，尤其是在沿海（河、湖泊）地區或地下水豐富的地區，埋管的傳熱性能大部分都受到地下水滲流的影響，此時土壤內發生的是熱傳導和地下水滲流共同作用下的復雜的、非穩定的傳熱傳質過程（簡稱熱滲耦合傳熱過程） 。To promote river - basin - scale biodiversity conservation, it is important to take effective steps to protect key areas and construct ecological corridors, and to integrate biodiversity conservation into the sustainable development strategies of local social - economic development in the chisui river basin
提出赤水河流域生物多樣性保護應在國家政策框架內，在流域綜合管理理念指導下兼顧重點區域保護和生態廊道建設，探索流域尺度上生物多樣性保護與流域社會經濟協調有序發展的新型管理模式。On the foundation of reference researches, through analyzing the condition of rainfall and hydrogeology of tian - tang river in the suburb of south - east of beijing, the mathematical models of the shallow ground water movement were founded. according to the experiment result of pump water and other reference data, the parameter of hydrogeology and ground water were established. on the foundation of present and future trend of using water on industry, agriculture and living, the solution of mathematical models were calculated by the method of finite element
在前人研究的基礎上，本文通過對北京市東南郊天堂河流域降雨、水文地質條件的分析，建立淺層地下水運動數學模型，根據抽水試驗結果並參考有關資料確定水文地質和地下水補給的有關參數，根據工業、農業、生活現狀用水情況及未來的發展趨勢，採用有限元的方法對地下水運動數學模型進行求解。This paper analyses the whole apace characteristics of natural environment and building models of wu - ting mountain villa, which is a huge office residence with fortress on the qing river valley. it also studies the characteristics on its space formation, decoration and construction. in this paper, the author researches the " architectural causes of formation which are brought up by the comprehensive effects of its nature, ecology, traditional culture, folk customs, patriarch system and the development of economy, society and history
本論文通過分析沁河流域堡寨類官宦山地文化巨宅? ?午亭山村的整體自然環境空間特色、建築造型及空間形態特色以及建築的裝飾特色、結構特色，研究其自然、生態、傳統文化、民俗文化、宗法制度、經濟、社會、歷史發展等因素綜合作用下的建築形態成因，探究傳統民居的保護開發與可持續發展的原則，為大家展示了午亭山村獨具特色的晉東南堡寨類官宦類巨宅的民居風采，為現代設計探尋地域、生態、文化及與時俱進的時代特色的追求提供了可鑒的思路和啟迪，並呼籲弘揚我國的傳統文化、民族文化，大力保護性開發我國的民居類古建資源。O curve of dsdp607 v30 - 97 show that loess began to deposit on the terrace of the yellow river about 1. 20 ma b p, and passed thirteen climatic changes from drier and cooler to warmer and wetter later. the turn of sedimentation from alluvium to loess, an event of transformation from accumulation to down - cut of the yellow river, indicates a sharp tectonic uplift occurred around 1. 2 ma b p. key words : loess - paleosol ; susceptibility ; climatic changes ; tectonic movement ; yellow river ; yangfan section
通過對楊范剖面黃土地層巖性特徵沉積結構質量磁化率和頻率磁化率的分析及與深海氧同位素曲線的對比，劃分了剖面地層，初步確定了黃土沉積始於1 . 20 ma b p ，黃土沉積以來該區發生了13次大的乾冷暖濕氣候變化沉積轉型指示河流強烈加積轉變為河流侵蝕，代表約在1 . 20 ma b p發生過一次強烈的構造抬升事件。Chapter 7, based on vulnerable ecology of tarim river watershed, the author build eco - environment quality evaluation fuzzy synthetical evaluation model according to tarim river watershed characteristics
第七章從生態脆弱性的角度出發，建立了適合塔里木河流域特點的生態環境質量評價的模糊綜合評價模型，對塔里木河流域生態環境質量現狀進行了評價。分享友人