現狀植被 的英文怎麼說

中文拼音 [xiànzhuàngzhíbèi]
現狀植被 英文
vegetation existing
  • : Ⅰ名詞1 (現在; 此刻) present; now; current; existing 2 (現款) cash; ready money Ⅱ副詞(臨時; ...
  • : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
  • : Ⅰ動詞1. (栽種) plant; grow; cultivate 2. (樹立) establish; set up Ⅱ名詞(姓氏) a surname
  • : Ⅰ名詞1 (被子) quilt 2 (姓氏) a surname Ⅱ動詞[書面語]1 (復蓋) cover; spread 2 (遭受) suffe...
  • 現狀 : present situation; current situation; status; existing circumstances; existing state of affairs
  • 植被 : vegetation; vegetative cover植被層 vegetable layer; 植被帶 [植物學] zone of vegetation; 植被類型 vegetation form
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明: 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化:隨海拔高度上升,機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒,海拔1600m以下出粘化層;土壤有機質豐富,表層有機碳含量一般在20g kg以上,有機碳含量隨海拔高度升高而相應增加,海拔3500 3700m的灌叢草甸下有機碳含量最高;土壤呈酸性或微酸性,並隨海拔上升, ph值略微降低,酸性增強,海拔2700m以上的土壤多呈鹽基不飽和態,表明土壤淋溶作用較強, ph值和鹽基飽和度呈極顯著正相關;土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定,土體中sio _ 2含量較高, cao含量較少, sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ,礦質元素含量的順序依次為: sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發了基於光譜整體形的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」象,對于譜形相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與生物量和蓋度都有密切的關系,是開展精細分類研究和定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。
  3. 2 with the correlative analysis between the landuse structure and economic development, the main problems of landuse in youyang county are summarized as follows : ( l ) a large proportion of farmland are leanness, so the land quantity is bad ; ( 2 ) the forest vegetation is broken seriously, and the soil erosion is severe and the eco - environment is depravating ; ( 3 ) the number of land for water conservancy facilities is small ; ( 4 ) the proportion of town and transportation land is not accorded with landuse plan ; ( 5 ) land collocation is inconsequent ; ( 6 ) the land resources is plenty and a lot of land are not used but the land which can be opened up for farming

    2通過對酉陽縣土地利用結構與經濟發展的相關分析,總結了酉陽縣土地利用存在的主要問題有以下幾點: ( 1 )中低產田比例大,土地質量差; ( 2 )森林破壞嚴重,水土流失嚴重,生態環境惡化; ( 3 )水利設施用地較少; ( 4 )城鎮和交通建設用地欠賬大( 5 )土地資源配置不合理; ( 6 )土地資源總量豐富,未利用地面積大,耕地后備資源不足。
  4. ( 2 ) there are few ideal techniques for mearsuring [ ca2 + ] cyt. in conclusion, both limitation delay studies of [ ca2 + ] cyt in embryo sac during fertilization. the thesis work is to investigate the connection of [ ca2 + ] cyt and fertilization by avoiding drawbacks noted above, say, employing an ideal experimental plant, torenia fournieri, with a naked embryo sac that protrudes from the micropyle

    針對這種,本工作選用具有裸露胚囊的玄參科的藍豬耳物為研究材料,研究ca ~ ( 2 + )與受精過程中相關的細胞學事件的關系,探索[ ca ~ ( 2 + ) ] _ ( cyt )在物雙受精過程中的作用。
  5. The no - tillage and culture focus more on creating better conditions for microbe decomposing the crop residue compared with no - tillage. there are four principle in it : 1 ) successive capillary water circulation ; 2 ) successive no - tillage ; 3 ) successive multiple crop rotation ; and 4 ) successive " ridge and furrow culture ". by these devices taken, the soil accumulate more organic matter in shorter period compared with general no - tillage

    將秸稈混入土壤中分解,壟、溝搭配,保持土壤的浸潤態和連續,不僅解決了覆蓋免耕制中有機質分解、轉化慢的問題,而且使輸入土壤的有機質分解、轉化更加迅速,所以在促進土壤有機質循環方面自然免耕製表出明顯的優越性,土壤有機質遂表為快速的增長。
  6. The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north

    實驗結果表明:粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用;磁化率和全鐵很好地指示生物風化成壤作用; sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用;總有機碳( toc )含量的高低,在一定程度上反應了土壤發育過程中氣候和況的變化,指示著成壤過程中腐殖質化的程度; caco3含量的變化,可以反映了黃土古土壤形成時的風化成壤作用的強弱程度,指示成壤過程中的淋溶作用和次生碳酸鹽化作用;並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異,即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表出南部強于北部。
  7. The present statues and characteristics analysis of the plants and vegetation diversity in the chishui alsophila spinulosa nature reserve

    赤水桫欏自然保護區物和多樣性及特點分析
  8. Most of the pandas are distributed between 2 600 - 2 800 m ; 2 ) the pandas more often exploit the conifer - and - broadleaf - mixed forests and prefer to feed fargesia denudafa and more of their activities happen in forests where arrow bamboo grows better ; 3 ) the pandas avoid habitats where human disturbance is intensive ( x2 = 22. 000, df - 3, p = 0. 000 ) ; logging and livestock grazing significantly influence feeding habitats of pandas, while herb collecting and poaching has not. the giant pandas prefer the habitats where no human disturbance occurs. in conclusion, human activitires have intensively influenced feeding and other activities of the giant panda and its habitats

    垂直主要分佈在海拔2600 - 2800m范四川大學碩士學位論文圍內; 2 )主要利用類型中的針闊混交林,選擇有缺苞箭竹、而且缺苞箭竹生長良好的生境,對位置和森林起源這兩個生境因素的不同水平,都是隨機利用,沒有表出明顯的偏好; 3 )大熊貓明顯迴避那些人類干擾強度大的生境( xz二22 . 000 , df = 3 , p = 0 . 000 ) ;伐木和放牧對大熊貓食竹的生長態有明顯影響,對發生采藥和偷獵的生境沒有明顯迴避;對於人類干擾強度大的生境,大熊貓利用頻度很低,干擾弱或中等時,表出隨機利用;對于沒有干擾的生境,是高頻利用。
  9. This paper discusses the current situation, types, origins and developing trends of the bank caving, and then puts forwards countermeasures to prevent the geologic hazard by protecting natural vegetation, construction to conserve the banks and restoring grass and forests

    本文全面論述了黑龍江、烏蘇里江沿岸塌岸的、類型、成因及未來發展態勢,提出了保護天然、護岸工程建設、退耕還林草等防治塌岸的具體措施和對策。
  10. Moreover, evapotranspiration consumes mainly net radiation on a clear day and sensible heat flux is greater than latent heat flux on a cloudy day above spring wheat field

    在有覆蓋或裸地下墊面,晴天、陰天的凈輻射、潛熱、感熱及土壤熱通量均表出了與平均況一樣的日變化特徵。
  11. In light of the problems of aggravated soil erosion and litho - desertification of the karst regions in northwest guangxi as a result of degradation of forest ecosystems, six " grain - for - green " models ( five models of artificial afforestation or grass planting, and one model of desertation for natural vegetation restoration ) were screened out for quick restoration of vegetations in the regions and evaluated for their respective ecological effect

    摘要針對桂西北喀斯特地區森林生態系統退化造成的水土流失加劇以及石漠化嚴重的,篩選適合該地區快速恢復的5種人工造林(草)方式和自然拋荒恢復模式,分析評價各種模式的生態效應。
  12. Thirdly, the mathematics model of forecasting low flow was established in fengcong and fenglin regions according to these factors influencing the amount of low flow in karst drainage ( the area of drainage, lithology, the type of landforms and its special assembly and forest ) the conception of low water resources carrying capacity was first put forward according to the changing law of low water resources in space and the situation of exploitation and utilization in karst drainage ( ie, under the condition of the virtuous ecological environment and the available technology, the explorable amount of water resources in certain areas is capacity and limitation which is able to coordinate the development of population, enviroment and economy during the period of low flow seasons ) and preliminarily analyzed its connotation, characteristic and established the index system of low flow in karst drainage

    三是根據影響喀斯特流域枯水徑流的下墊面因素(空間尺度、巖性、地貌類型、) ,分別對峰叢和峰林等喀斯特地區建立枯水徑流預測模型。根據喀斯特流域枯水資源的空間變化規律以及實際開發利用況,首次提出了枯水資源承載力的概念,即在枯水季節期間,保持良性的生態環境和有的技術條件下,某一區域內可開採的水資源量對支持該地區人口、經濟與環境協調發展的能力和限度。並初步分析了枯水資源承載力的內涵、特性,從水資源的供需方面確立了喀斯特流域枯水資源承載力的指標體系。
  13. Meanwhile, most aspects about this perspective are concerned, which include quantification of the soil water background of the plateau area, the regional spatial variation of soil water background and variation along the slope, mosaic structure and seasonal changes etc. the results show that : ( 1 ) for the fundamental circumstance for vegetation development is the original debilitated slope, so the perspective of soil water background specially for the loess plateau refers to the soil water conditions on the original slope. ( 2 ) the value of soil water background appears to be a descending trend from south to north based on the difference of vegetation zones. in the forest zone, soil moisture contents beneath 3m depth from the soil surface are more than 12 % usually ; in the forest - pasture zone, the values of soil moisture content beneath 4m depth underground are more than 6 % and stable, and tend to be ascending while the depth increases ; but the values in the dry pasture zone is lingering between 4 % to 6 % from the surface layer to sub - layers

    發展了「土壤水分背景」的概念,並以之為基礎對其各個方面進行了研究,使之形成一個相對獨立和完整的體系,主要包括黃土高原土壤水分的背景值、土壤水分背景的區域分異、坡面分異、鑲嵌結構及其季節分異等: ( 1 )由於生長發展、演替的基礎階段是天然草群落,故認為黃土高原的土壤水分背景在概念上是特指該區天然草群落下的土壤水分況; ( 2 )黃土高原的土壤水分背景值,根據地帶的不同表出自南向北逐漸降低的規律:森林地帶3米以下土層水分背景值普遍穩定地高於12 ,森林草原地帶4米以下土層水分背景值穩定大於6 ,且均隨土層的加深水分含量逐漸增加,而草原帶的土壤水分背景值自土表至底土層一直在4 6之間徘徊。
  14. Based on the serious shortage of soil moisture, soil aridity and vegetation recession in this region, the following issues are studied in this dissertation : ( 1 ) the meaning of soil water and its role in the water circulation ; ( 2 ) soil water deficit and its influence to vegetation growth ; ( 3 ) the definition of soil dried layer and the causes of its formation ; ( 4 ) soil dried layer distribution and characteristics in north of shaanxi loess plateau ; ( 5 ) the primary study of measurable index of soil dried layer

    本論文主要針對黃土高原土壤水分嚴重虧缺以及因之而形成的土壤干化和林草衰退象,主要對以下幾方面的問題進行了研究: ( 1 )土壤水分的意義及其在生態系統水分循環過程中的作用; ( 2 )林草土壤水分虧缺況及其對生長的影響; ( 3 )土壤干層的涵義及成因分析; ( 4 )陜北黃土高原土壤干層的分佈及特徵; ( 5 )土壤干層的量化指標初步研究。
  15. 3. study on vegetation succession : by using place to make succession, instead of using time, we have a useful try to hope to support helpful use for reference. on the other hand, we reveal actuality and stages of community succession of midland of taihang mountain to presume the succession direction in the future

    的演替研究:本文對用空間代替時間的方法進行演替研究時,選取樣地應遵循的原則進行了有益探索,以期對今後的研究提供有益借鑒,並且科學揭示了太行山中段地區的群落演替和各群落的演替階段,對各演替階段今後的演替方向作出推測。
  16. A preliminary study on the species composition, ecological characteristics and present distribution of vegetations in mengyang area, the largest part of xishuangbanna nature reserve, shows that there are 7 vegetation types, 15 formations, 24 community types in this area. the vegetation map was made by using gis software ( arc / info ), and the area and distribution pattern of each community was obtained. the subtropical monsoon evergreen broad leaved forest occupies the largest part, with an area of 41. 26 % of the whole, and the tropical rain forest occupies less than 10 % of the whole area. according to the topography, altitude, climate characters and present distribution of the vegetation, and based on the landscape type map, an original vegetation map under natural conditions was obtained, which could provid a theory for the vegetation restoration, especially for the tropical rain forest and its habitat, and for the development of the nature reserve

    對西雙版納勐養自然保護區的類型進行了劃分,包括人工和自然群落,共有7個大類、 15個群系、 24個群落類型分佈.對每個類型的主要組成種類、生態特徵和分佈進行了初步研究.利用地理信息系統軟體制取圖並獲得了各種類型的分佈面積和分佈格局特徵,這一地區亞熱帶季風常綠闊葉林的分佈面積和所佔比例最大,達總面積的41 . 26 % ;而熱帶雨林面積不超過總面積的10 % .依據地形、海拔、氣候和現狀植被分佈的規律,在獲得景觀類型圖的基礎上,得到了可以反映這一地區在完全自然條件下可能分佈的況的還原圖,為保護區的發展和的恢復提供了理論依據。
  17. Soil water content was measured at 28 points in the catchment. biomass and productivity of the plant communities, transpiration rates of dominant plants, and plant community diversity were also measured at various points along the slope. l. in general, it seemed that soil water content increased from the top to the bottom of the catchment.,

    在相似及坡面形條件下,土壤水分沿坡面向上逐漸降低;類型及其分佈與土壤水分的坡面分佈密切相關,對上述趨勢有減弱的作用,研究發在偏旱的2002年生長季末,陰坡灌叢坡面坡下的土壤水分含量明顯低於坡上。
  18. The indexes of diversity, evenness, dominance, isolation, fragmentation and fractal dimension are used in this study. the landscape structure evaluation was from three levels, which are sub - compartments, compartments and work region. used stores per square kilometer of forest and tm4 remote sensing image the author give the scaling analysis

    根據中山陵森林資源調查數據,在分析其景觀的基礎之上,應用景觀生態學原理,結合具體情況和考慮研究的可操作性,選取多樣性指數、優勢度指數、均勻度指數、分離度指數、破碎度指數、分維數指數6個指標,從地類景觀要素、林分類型和小班三個層次,對中山陵景觀進行結構評價初步分析。
  19. The differences of biodiversity indices and vegetation coverage between the designed vegetation restoration pattern and the field data indicated that alpha and beta diversity indices were decreased in some parts of the region after vegetation restoration, however, vegetation coverage was reasonably increased, which would enhance the capability of soil and water preservation, thus could improve the ecological security of the region

    通過對比分析現狀植被蓋度及生物多樣性與恢復格局預測結果的差異,對區域恢復的效果進行評價,認為盡管恢復格局設計使部分區域生物多樣性下降,但它整體提高了地表覆蓋度,增強了抵禦土壤侵蝕的能力,對保障區域生態安全具有積極的效果。
  20. It was found that : ( 1 ) the vegetation type of xiaozhaizigou nature reservation are broad leaved forest and coniferous deciduous forest, subalpine coniferous forests ; ( 2 ) there are " fargesia rufa, f. denudata, f. nitida, bashania fangiana " in various vegetation type in xiaozhaizigou nature reserve, especially mixed coniferous and broad - leaved forests and subalpine coniferous forests ; ( 3 ) in xiaozhaizigou, the broad - leaved forest, mixed coniferous and broad - leaved forests, and subalpine coniferous forests were suitable habitat for pandas ; ( 4 ) with the ascension of altitude, the vegetation type alters naturally and takes on natural state

    結果表明: ( 1 )小寨子溝大熊貓生境的類型有2種:闊葉林和針葉林; ( 2 )小寨子溝自然保護區內分佈有青川箭竹、缺苞箭竹、華西箭竹、冷箭竹等多種箭竹,這些作為大熊貓食料的箭竹廣布在各種類型中,尤其是針闊混交林和亞高山針葉林; ( 3 )大熊貓對生境的群落結構有較廣的適宜性,闊葉林、針闊混交林、亞高山針葉林均可作為它的適宜生境; ( 4 )小寨子溝自然保護區內的類型是隨海拔的升高而自然過渡的,呈出受人類活動影響較小的自然態。
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