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transect vt.橫切,橫斷。n.【林業】樣條。 a belt tr...

transection

The vegetation type was classified in the east transect by unsupervised classification using the data ( ikmx 1km ) from noaa meteorology satellite from 1995 - 1996 , and the article analyzed the change of ndvi of all kinds of vegetation types , in the same time analyzed the forest dynamics in typical ecotone ( warm temperate zone to semitropical in qinling woods ) using the higher spatial resolution tm data 本論文利用1995 - 1996年noaa氣象衛星的ndvi ( 1km 1km )數據,采用無監督分類方法對中國東部樣帶南方部分進行植被類型的劃分,分析各植被類型的ndvi變化情況;并利用較高精度的tm數據分析典型交錯區域(暖溫帶到亞熱帶的秦嶺林區)的森林動態變化情況。

On the basis of on - the - spot investigation and information , this article puts forward the stratum separation scheme and field criterion for projects in gansu loess areas ; presents the geological structure model of the natural slope in this area for the first time ; counts and analyses the parameter of the loess ; analyses the stability of loess cut with the method of ultimate balance and finite element ; recommends different transect forms for the cut subgrade in gansu ' s loess areas ; evaluates these forms with grey system theory concerning stability , economy and anti - scour capability ; finally , puts forward the design method and procedures of reasonable heavy cuts transect 本文通過大量的現場調查和資料收集,提出了甘肅省黃土工程地層劃分方案和野外判定標準;首次提出了甘肅省黃土自然邊坡的不同地質結構模型;統計和分析了甘肅省黃土的土性參數;運用極限平衡法和有限元法對黃土路塹高邊坡穩定性進行了分析;推薦了甘肅省不同黃土地區路塹高邊坡的斷面形式,并結合穩定性、經濟性和抗沖刷性能,應用灰色系統理論對其進行評價;最后,提出了黃土路塹高邊坡合理斷面設計方法和設計步驟。

According to the design code for filling and emptying system of shiplocks and the layout characteristics of the second line of qililong sea route on fuchun river and the upstream navigation tunnel , the type of the filling and emptying system of shiplocks is determined , the area of the culvert transect at the valve is calculated , and the layout type and key size of the filling and emptying system are recommended 摘要根據富春江七里瀧航道第二通道工程船閘及其上游通航隧道總體布置的特點,按照《船閘輸水系統設計規范》的要求,確定了船閘的輸水系統型式,并計算了輸水閥門處廊道斷面的面積;推薦了通航船閘輸水系統的布置及關鍵尺寸。

5 , comparatively computation analysis is carried out among pcc pile and cast - in - situ concrete circular pile and prefabricate concrete square pile by program which is develop in the paper . two angles such as the same diameter and transect area of the pile are analysed . the advantages of the pcc pile have been proven on the aspects of technique and economy in the paper 5 、將pcc樁和工程中常用于承受水平荷載的灌注圓形樁及預制方形樁進行了對比計算分析,從相同的樁徑和等效的截面積兩個角度論證了pcc樁在承受水平荷載時的技術經濟的優越性,從對比分析中證明了pcc樁優于其他樁型的薄壁性能。

The east transect was classified thirty five vegetation types using ndvi data from 1995 - 1996 by gis technique . the paper concludes that the ndvi from meteorological satellite is sensitive indicator of vegetation growing condition , times series curves of ndvi can truly curve vegetation growing principle by drawing the seasonal change curve of ndvi data by three groups . the paper also concludes that the forest ' s ndvi curve is commonly single apex , while farmland ' s or shrub ' s curve is mostly double apex , the peak value of forest ' s ndvi is commonly higher than grassland , farmland and some other vegetation types 應用地理信息系統技術處理1995 - 1996年1kmndvi數據,將南方樣帶劃分為35類,分三組繪制35類植被的ndvi季節變化曲線,得出氣象衛星ndvi是反映植被生長狀況的敏感指示器, ndvi時間序列曲線真實地刻畫出植被的生長規律;經分析得知森林ndvi曲線一般為單峰曲線,而農田灌叢多為雙峰曲線;森林ndvi峰值一般高于草原、農田等其它類型。

Its applications include in the fields of information engineering , electronics industry , theory of controls and economic , etc . for example , we use geometric distribution to describe the life distribution of runs of a species in transect surveys of plant populations and inventory demand distributions . in the theory of reliability , geometric distribution is one of the most important discrete probability distributions because of its loss of memory 在可靠性理論中,由于幾何分布的無記憶性,使得其是離散型壽命分布中最為重要的壽命分布之一,其相當于指數分布在連續型壽命分布中的地位,這正如程侃研究員在文獻[ 5 ]中所指出的“在離散壽命的情形,幾何分布起著連續情形下指數分布所起的作用”一樣。

This paper summarizes briefly the innovative ideas on modern container terminals ' design , advances a functional transect layout for modem container terminals , describes the application of simulation technology in container terminals ' design , and analyzes the development trend of equipment of container terminals 摘要簡要歸納現代集裝箱港區的設計理念創新,提出現代集裝箱港區的功能橫斷面布置模式和有利于高效運行的生產能力不平衡配置模式,介紹虛擬仿真技術在集裝箱碼頭設計中的應用情況,對集裝箱碼頭裝備的發展趨勢做了初步分析。

Therefore , it might be very essential to study the cable stayed bridge of the super breadth composite beam . additionally , the main problems of the study are as follows : 5 、 the distributing for stress of lengthways and transverse in transect ; 6 、 discussing the change of stress of lengthways and transverse , while the breadth of bridge is changing ; 7 、 in the cable stayed bridge of the super breadth composite beam , the lengthways reinforce rib and rigidity crossbeam exert influence on stress of bridge board ; 8 、 while tower and beam are concretion , main tower affects bridge board 鑒于目前關于此類橋型研究成果不多,就此作了下列若干問題的研究: 1 、超寬疊合梁斜拉橋橫斷面上縱向應力分布和橫向應力分布特點的研究; 2 、對超寬疊合梁斜拉橋隨著橋寬變化時,上述兩種應力分布變化規律進行探討; 3 、在超寬疊合梁斜拉橋中,縱向加勁肋對橋面板受力的影響;橫梁尤其是剛性橫梁在橋面板受力中所起的作用; 4 、塔梁固結時,主塔對橋面板的作用。

Species diversity dominance niche community ordination and classificationx population spatial pattern in desert - oasis ecotone in fukang , along with their relation to soil factors , are analyzed by quantitative vegetation analyze methods . the characteristic x dynamic of landscape ecological pattern and their influence factors are also analyzed by the partition of landscape transect . oasis stability is primary explored by the successive observation of soil water and salt in sangonghe basin in fukang 采用植被數量分析方法,分析了荒漠綠洲過渡帶植物群落的物種多樣性、優勢種生態位、群落排序與分類、種群空間格局,以及它們與土壤因子之間的關系;通過劃分景觀樣帶,分析了阜康土地利用景觀生態格局的特征、動態及其影響因子;通過阜康三工河流域土壤水鹽的動態觀測,對于綠洲穩定性進行了初步探索。

The paper establishes a ecological transect , with a length of 90 km and width of 16 km , utilizing the part of tm data on 16th august 1998 , from harbin to the natural secondary forests in maoershan , heilongjiang province . with supervised classification , the tm data which had been corrected and enhanced via erdas , combining the data of gps in the field , was classified by seven types including : residential area , glebe , paddy field 本論文利用1998年8月16日的tm衛星數據的一部分,設置從黑龍江省哈爾濱市到帽兒山天然次生林區,長90km ,寬16km的生態研究樣帶。通過用erdas對衛星數據的校正、圖像增強等處理,結合gps野外實地調查數據,進行有監督分類。共分為7種類型:居民點、旱田、水田、河流、灌叢、闊葉林、針葉林,并建立了衛星影像分類解譯標志。

This study aims at censusing of the panda population , panda ' s exploitation of habitats and impacts of various human activities on the giant pandas and its habitats . the route transect method was used and plots were set along the route in each valley at wanglang 調查方法是在王朗保護區內設置樣線,沿樣線設置樣方,在樣方中收集大熊貓各類痕跡的數量、特征、空間位置和生物與非生物環境因子。

After five years of diving trips , wherebye mumby and his international team scuba - dived transect after transect of caribbean ocean , the group is pleased to report in this week ' s science that the corals are faring well1 馬姆比和他的國際團隊潛水研究了加勒比海的一個又一個橫斷面,經過5年研究之后,該小組欣喜地在本周的《科學》雜志上報告:珊瑚生活得很好。

Based on plot investigation , transect plot investigation and radial growth analysis , we studied the population characteristics , disturbance effect of gap of neolitsea aurata var . glauca in jinyun mountain and its regeneration 通過樣方調查、樣帶調查及徑向生長格局分析法,對縉云山白毛新木姜子種群特征、林隙干擾效應及更新策略進行了研究。

Coral reef fish and invertebrate species such as butterfly fish , groupers , wrasses , lobsters , sea urchins , and the coverage of hard coral species are quantified around a transect line placed in a similar position every year 每年普查均會在相同位置展開基線,統計如鰈魚石斑鸚鵡魚蝦海膽等的珊瑚魚和無脊椎動物的數目,以及珊瑚的覆蓋率。

Growth indices of artificial cultivated hedysarummaxim . are studied by line transect methods , species diversity indices are calculated to study the sand - fixing effects of hedysarummaxim 摘要采用樣線法對人工種植羊柴進行研究,調查其生長狀況,并通過研究其物種多樣性來分析羊柴對流沙的固定效果。

The gis technique supported by arc / info software was used to analyze the heterogeneity of oasis - desert ecosystem and its mosaic of patch structure , landscape change in fukang transect 利用地理信息系統軟件對阜康綠洲-荒漠生態系統的景觀結構的異質性、鑲嵌結構及其格局變化進行了較全面的分析。

The construction of road model and the terrain - matching method . following the transect - based road model , an adaptive road - modeling method based on terrain - matching has been brought forward in this paper 以橫截面道路模型結構為基礎,提出了一種基于地形匹配的自適應道路模型的建模方法。

It is the only protected area in the world to incorporate a continuous , intact transect from snowcap to tropical marine environment , including extensive lowland wetlands 它位于兩個大陸板塊碰撞的地方,這里的地質情況很復雜,既有山脈的形成又有冰河作用。

Therefore wwf commenced systematic morning counts of waterbirds in june 2003 using a circular transect route around the perimeter of the nature reserve 因此,本會于2003年6月開始采用一條環繞米埔自然保護區的路線,有系統地記錄清晨的水鳥數目。