自然坡度 的英文怎麼說

中文拼音 [rán]
自然坡度 英文
equilibrium profile
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : Ⅰ形容詞(對; 不錯) right; correct Ⅱ代詞(如此; 這樣; 那樣) so; like that Ⅲ連詞[書面語] (然而)...
  • : Ⅰ名詞(地面傾斜的地方) slope Ⅱ形容詞(傾斜) sloping; slanting
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 自然 : 自然at ease; natural; free from affectation
  • 坡度 : falling gradient; slope; inclination; declivity; pitch; batter
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山(保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚、有機質層厚、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. This paper studies the perturbation action of celestial bodies ' movement on the earth from the view of celestial mechanics, and furthermore analyzes the effect of celestial bodies ' movement on the natural slope stability due to phosphorus ore mining in mountainous areas

    摘要針對宜昌磷礦高陡山區地下開采對上部山體穩定性影響,從天體力學的角探討天體運動對地球的攝動作用,並分析月球運動的引力對山區磷礦失穩的影響。
  3. As a southwesten autonomous county with national minority and typical area, the nature condition in youyang is bad and the economy falls behind and the soil erosion is serious. furthermore, the population increases quickly which results to steep slope farming and excessively opening up, so eco - environment accelerates rapidly. in the whole, youyang is an epitome of the area with soil and water erasion in western china

    酉陽作為西南少數民族治縣,區內條件差、經濟落後、水土流失嚴重,屬典型的水土流失型生態脆弱區,加之該區生產手段落後、經濟結構單一、而人口增長過快,導致人地矛盾尖銳,陡耕作、過開墾,使生態環境加速惡化,因此,酉陽治縣土地資源可持續利用可以作為西部水土流失型生態脆弱區的一個縮影。
  4. In order to solve this problem, we find a kind of herbages plant - sabaigrass ( eulaliopsis binata ) which not only can accommodate the badly environment of purple soil but also have excellent water and soil conservation effect and good economic benefit. this study adopt quantitative and qualitative methods, through comparative study of four different utilization types : sabaigrass treatment, grass tree solid plating treatment ( planting sabaigrass under fruit trees treatment ), bare land treatment, natural wild grassland treatment, study water and soil conservation effect, soil water condition, soil constructors condition, soil fertility condition and soil surface temperature, then evaluated the water and soil conservation effect of plating sabaigrass in purple soil bare sloping field and probed into water and soil conservation mechanism. the main results are as follows : 1

    本研究針對湖南省衡邵盆地紫色巖地區日益惡劣的生態環境,從紫色土荒地水土流失治理入手,在尋求出既適應紫色土荒地惡劣環境又有良好水土保持作用和一定經濟效應的作物? ?龍須草的基礎上,用定性和定量相結合的方法,以「龍須草純種」 、 「龍須草與果樹立體種植」 (簡稱林草立體種植,下同) 、 「空曠地」 、 「野生雜草地」四種不同的土地利用方式進行對比研究,從水土保持效應、土壤水文狀況、土壤結構、土壤肥力狀況、地表溫狀況等方面分析、評價紫色土荒地種植龍須草防治水土流失的效應,並對其機理進行了初步探討,主要研究結果如下: 1
  5. With reference to katabatic winds, describe how the stability of the atmosphere is affected by other physical factors

    以下風為例,描述大氣的穩定如何受其他因素所影響。
  6. In the analysis of ecological relationship between vegetation and environment, we got 11 community types by combining twinspan with dca. the first axis of oca indicated the elevation level and heat gradient while the second axis indicated slope factor. the analysis shows that the resource of tourism in pangquan gully is abundant and the construction is rational

    第一軸基本上反映了各植物群落所在環境的海拔和熱量梯,從左到右,海拔在體呈升高趨勢,熱量呈下降趨勢;第二軸基本反映了各植物群落所在的,從下到上呈良好的發展趨勢,從群落類型來看,各群落類型在排序圖上有規律地分佈,得出龐泉溝植被結構合理,分佈符合進化規律,龐泉溝生態旅遊資源未受到破壞,人為因素不明顯。
  7. In the forth chapter, the paper mainly analyzes the origin of the trinitarian system of our security market, outlines the picture of framework of institutions as well as performance of china security market, and gives an explanation on performance of listed companies from angle of corporate governance

    第四章是第三章的延續,主要探討了「三位一體」證券體制的形成,分析了其中的制互補,初步勾勒出了證券市場體制框架和績效浙江大學博士學位論文中國證券市場制績效研究結構框架,從公司治理效率的角給出了上市公司效益滑的一個解釋。
  8. Firstly, according to the natural geology study of the quarry, the control structure planes are determined, which are cut to be building blocks by two sets of main joints. failure can occur due to the intensity weaken of the joint planes caused by excavation relief and rain immersion

    首先研究了采場的地質條件,確定了影響邊穩定的控制性結構面,即塊體主要由兩組節理切割而成楔形體,由於開挖卸荷及雨水浸泡,致使節理面強減弱而發生破壞。
  9. At last, the finite element method, the strength reduction method and limit equilibrium method, nature slopes and excavation slopes, lateral stress unloading model and axial loading model are analyzed and discussed relatively

    最後,就有限元法、強折減法和極限平衡法,與挖方邊,圍壓卸荷應力路徑模型分析與軸向加荷應力路徑模型分析進行了比較討論。
  10. The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation

    本文以騰格里沙漠東南緣寧夏中衛縣沙頭地區人工固沙植被作為研究對象,採用傳統生態學的野外調查方法,從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境(土壤含水量、溫)相互關系及其與植物身生理生態適應特徵關系等多個角研究了人工植被群落的結構及其動態變化,取得了如下研究結果: 1 、植被群落組成、多樣性及生活型:沙頭地區人工植被經過近50年的演變,從流動沙丘到固定沙地,沙地植被的動態變化經歷了從人工植被到人工?植被的轉變,從人工植被建立初期的少數幾種引種植物到現有30多種植物,隨著固定沙地時間的延長,植物種類日趨豐富,並且人工植被在15 25年、 40 50年兩個階段,物種的周轉速率最大,即群落結構變化最大。
  11. To discuss the natural vulnerability of different coasts to future sea - level rise, the paper selects the coasts along the pearl river mouth as the studied area. after analyzing the impacting factors of natural vulnerability along the pearl river mouth, the paper divides the coastline of approximately 412km into 25 15 - minute gird cells. for assessment purposes, the six variables including geography, relative sea - level change, average tide range, regional slope, shoreline erosion or accretion rates and tropic cyclone impacting frequency are selected as assessed variables

    為了探討不同海岸帶對未來海平面上升的脆弱性,本文以珠江口沿岸作為研究個案,在分析珠江口沿岸脆弱性的影響因子的基礎上,把珠江口沿岸412km岸線劃分為25個15 15的網格單元,選取了地質、海平面上升率、平均潮差、區域海岸、海岸侵蝕/堆積率、熱帶氣旋影響頻率6個評價指標,應用cvi指數評價公式對珠江口地區進行海岸脆弱性評價,並建立海岸脆弱性評價數據庫,繪制了珠江口沿岸1 : 2 , 000 , 000的數字化cvi圖。
  12. On the other hand, the coastal system ' s natural adaptive response ( resilience and resistance ) to sea - level rise would induce or increase the potential risk. the changes of the coastal risk to sea - level rise are related to the coastal environment ( geology, geomorphology, coastal height, coastal slope and local ascend and subsidence trend ). the coasts with high elevation, steep coastal slope, rocky cliff, and ascending stabilization are considered to be of higher autonomous adaptive capacity, and the lower autonomous adaptive capacity areas generally occur at lower - lying beach areas and delta coasts where coastal slope is low and the crust is descending

    另一方面,海岸帶對海平面變化的適應能力( 「彈力」和「阻力」 )將使其對海平面變化的「敏感性」減少或增大,海岸適應能力與海岸帶的海岸環境(地質、地貌、海岸高程、海岸,地殼升降運動等)有關,海拔高、海岸大、地殼長期穩定上升的基巖海岸的適應能力較強,反之,海岸平緩、地殼長期下降、地勢平坦的平原海岸和三角洲海岸的適應能力較弱。
  13. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的資源和農業生產情況,研究了典型地降雨徑流中的氮、磷污染物的輸出規律,利用annagnps模型估算流域農業非點源污染物輸入負荷,並在千島湖內設點采樣,對水質理化指標和浮游植物群落進行系統的研究,得出以下結論: 1989 2001年間的水環境常規監測資料統計分析表明,有毒物質和重金屬濃長期在監測下限內, no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃均符合類標準,但湖泊水庫特定項目tn和tp濃分別為超類和類,呈嚴重超標狀況,湖區主要污染因子是將導致富營養化的物質tn和tp 。
  14. With synthesize slope ratio increasing, the stability of cutting slopes decreases, but the stability of sharpen slope affected by natural slopes ratio changes rarely, the stability of cutting slope that height is 30m is change notably due to slope type, whose single slope ratio with madao is inferior to the slope that upper ratio is less than lower ratio with platform in middle part. but the stability of cutting slope with 50m height is little change with the slope type change. with same stratum, slope height, slope type, the cutting slope is inferior to the sharpen slope in stability

    結果表明,地層含水量在12 . 0 18 . 0變化范圍內,各種挖方邊穩定性均隨濕的增大而顯著降低;路塹邊的穩定性隨綜合比的增大而降低,但削比影響,隨綜合比的增大其穩定性基本不變;高30m的路塹邊穩定性因型改變而有明顯變化,且單一比多級馬道型邊的穩定性較上緩下陡平臺型邊的穩定性差,但高50m的路塹邊穩定性因型變化而基本不變;當高、型、地層條件相同時,路塹邊的穩定性較削的穩定性差。
  15. The driving condition of western district highway net of our country is bad, the highway standard is low and natural disasters such as hill landslide and mud - rock flow etc are very much. there are many difficulties in highway construction and maintaining. the workload and the difficulty of the roadbed protects engineering are more and more great

    我國西部地區公路網的行車條件差、公路技術等級和通達水平低,山體滑、泥石流等災害較多,給公路建設和公路養護帶來了許多困難,路基邊防護工程的工作量和難也越來越大。
  16. The results indicate that the stability of the landfall reduces with the increase of gradient of it. furthermore, the landfall is only stable when its gradient is no bigger than its natural gradient ( 40 ? 45 ?. 3

    計算結果表明:宅基邊傷亡性黃土崩塌的穩定性隨谷緣的增大而降低;當其不大於自然坡度( 40 45 )時,此類崩塌方能處于穩定狀態。
  17. Finally, based on the survey on the ventilation of double ( rack tunnels in operation representative parameters were selected and a series of computations were carried o ' ut to examine the train passing capacity of tunnels with different lengths and slopes

    最後,根據對我國雙線鐵路隧道運營通風的調查分析,選擇具有代表性的參數,利用數值計算程序,對不同長的隧道在通風情況下列車的通過能力進行了模擬計算。
  18. This thesis, according to limestone environmental characteristic and characteristic of construction of highway of mountain area of limestone, sets out in excavating from the road bed of the angle of environmental protection, according to trying not to excavate, how to reduce to excavate, how to reduce and excavate the impact on surrounding environment of the course, how to go on the expressway view and ecological environment and how to carry on environmental quality resume, we employ theories such as engineering of traffic, rock soil engineering, traffic psychology, traffic aesthetics, operations research, etc. we have excavated environmental protection theory and method and carried on research to the mountain area expressway road bed of limestone systematically, propose the road bed to excavate and optimize, slope protect, discard cubic meter of earth and stone deal with, natural river system recuperate recovery, view environmental recovery, environmental quality resume theory system of appraising etc.

    本論文依據石灰巖山區環境特徵和石灰巖山區高速公路建設特徵,從路基開挖中環境保護角出發,按照盡量不開挖、如何減少開挖、如何減少開挖過程對周圍環境的影響以及如何對高速公路景觀和生態環境進行恢復、如何對建設項目進行環境質量評價等思路,應用交通工程學、巖土工程學、交通心理學、交通美學、運籌學等理論與方法,系統地對石灰巖山區高速公路路基開挖環境保護理論與方法進行了研究,構建了包括路基開挖優化、邊防護、土石方處理、水系調治恢復、景觀環境恢復、環境質量評價等理論或方法的石灰巖山區高速公路環境保護理論框架,為促進石灰巖山區高速公路的可持續發展提供了基本思路。
  19. The northern part of ailao mountain, located in the middle of yunnan province, was selected as study area. based on three landsat mss / tm / etm satellite images, as well as “ 3s ” technology combining with the method of mathematical statistics, the objective of this paper was to analyze the law of spatial ( gradient, slope orientation and elevation ) and temporal changes in land use / land cover on the northern part in the periods of 1974 1987 and 1987 2003. and analyzes land use / land cover change character in nature reserve and its meighbour region within the confine of the study area

    本文選擇滇中哀牢山北段作為研究區域,以1974年mss影像, 1987年tm影像和2003年etm影像為主要數據源,運用「 3s 」技術,並結合統計分析,探討研究區1974 1987年、 1987 2003年間土地利用的時間和空間(向、海拔)變化規律,並分析了研究區內的保護區及其周邊土地利用/覆蓋變化特徵,以期為山地土地資源的可持續利用和生態保護等方面提供依據。
  20. As a research authority in nanjing university from 1997, he has being taken charge of five projects on multimedia computing and graphic recognition, supported by national post - doctoral science foundation ( 1997 ) and national science foundation ( 1999, 2003 and 2004 ), program for excellent college teacher ( 1999 ) and program for new century excellent talent ( 2004 ) of the ministry of education

    到南京大學任教以來,先後主持「中國博士后科學基金」項目一項( 1997年) 、 「國家科學基金」項目兩項( 1999年和2003年) ,教育部「高等學校骨幹教師資助計劃」 ( 1999年)和「新世紀優秀人才資助計劃」 ( 2004年)各一項,主持與南京市地方稅務局和新加貝克比科技有限責任公司橫向合作項目多項,協助主持「國家科學基金」項目一項( 2004年) 。
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