vegetation change 中文意思是什麼

vegetation change 解釋
植被變化
  • vegetation : n. 1. 【植物；植物學】營養體生長，發育；〈集合詞〉植物，植被，植生，草木。2. 無所作為的生活，單調的生活。3. 【醫學】贅生物，增殖體。adj. -al
  • change : vt 1 改變，變更，變換，變革。2 交換；兌換；把（大票等）換成零錢；把（支票等）兌成現金。3 換（車、...
  1. 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；發現了基於光譜整體形狀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」現象，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；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被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，是進行植被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。
  2. The baric field and the tempreture field of high latitude will have some changes because of the change in the vegetation states of the landuse

    由於下墊面植被狀況的變化，高空氣壓場和溫度場也隨之發生一些變化。
  3. In typical watershed, quxi watershed, the result of external forcing, submerge and migrant, is the resource change of slope cultivated lands, economical forest, vegetation, water, habitant etc. of the ecosystem, and the changes of demand for food supplies, energy resource and education

    移民區典型小流域? ?曲溪小流域，受淹沒、移民2個驅動力的作用，耕地、經濟林、植被、水、棲息地等資源發生了顯著變化，系統的糧食、能源、教育需求也隨之而變，在內在反饋機制的作用下，導致系統輸出為水土流失加劇、生物多樣性受到破壞、土地退化嚴重等。
  4. We selected dongzhaitang profile in the zhaitang basin of xishan mountain, beijing area from which the malan loess got its name and study the sequence of vegetation change recorded in the malan loess of xishan mountain by means of spore - pollen analysis

    本研究選取馬蘭黃土的命名地?北京西山齋堂盆地東齋堂磚廠剖面，以孢粉分析為手段來研究末次冰期中期北京西山黃土中的植被演化過程。
  5. At the first outset, heavy, miry ground and a matted, marish vegetation, greatly delayed our progress ; but by little and little the hill began to steepen and become stony under foot, and the wood to change its character and to grow in a more open order

    一開始，泥濘難走的地面和亂蓬蓬的沼澤植物大大地耽誤了我們趕路。但坡面逐漸趨于陡峭，腳下的土質趨于結實，樹木變得高大稀疏，我們正走近的是整個海島最迷人的地方。
  6. Vegetation change in late miocene and evolution of photosynthesis

    晚中新世植被變更與光合作用演化
  7. The paper concludes that the changing rate of ndvi of rain forest in tropic is the smallest, the changing curve is smooth, while the changing rate of ndvi of the deciduous broad leaf forest in warm - temperate zone is the largest the change of ndvi is the most conspicuous in winter and spring ( especially in april ) while is not conspicuous in summer and autumn by analyzing the change of ndvi along latitude using the ndvi value of different vegetation types along the same longitude. the vegetation index from warm temperate zone to semitropical zone has obvious transition, while other areas have no distinct change by analyzing the change of ndvi from temperate zone to semitropical zone to tropical zone using ndvi averagejn the same time it is concluded that the sink value in the beginning of the year 1995 is from the influence of the monsoon in east of china by analyzing the ndvi curve of several typical needle leaf forests. the relation between ndvi value and temperature is conspicuous while the relation of precipitation is less or not by analyzing the relation between ndvi and temperature and precipitation finally it can get the conclusion that the change of river area is the smallest, the change of sienna area is the greatest by analyzing two phases of tm data in 1987 and 1997 with rs technic

    利用從同一經度的不同森林類型ndvi值分析，沿緯度方向ndvi變化可得出， ndvi在冬春季變化最明顯（尤其是在4月份最大） ，而在夏季和秋季變化不明顯。利用ndvi均值進行分析，從暖溫帶到亞熱帶到熱帶的變化情況發現，從暖溫帶到亞熱帶ndvi指數形成明顯的階躍，而其它區域沒有太大的變化，同時對幾種典型的針葉林曲線分析可知其年初的凹值源自於我國東部季風的影響。利用ndvi數據分析其與月均溫度與降水的相關性得出與溫度相關性較為顯著，而與降水相關性不顯著或無相關性。
  8. 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，採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；並利用較高精度的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。
  9. Thermal, precipitation and humidity affected vegetation types and it ' s distributing, while vegetation types choosing terrene - ecosystem. as the drive power will change along with different space - time scale, we must base on specifically district and period, when study on the drive power of terrene - ecosystem development

    熱量、降水和濕度決定著地表植被類型及其分佈，植被類型決定著陸地生態系統，而促成地球陸地生態系統演變的驅動力隨著時空尺度的不同會有變化。
  10. The authors analyzes the function change of urban in its evolvement and the eco - environmental problems caused by this change. based on this analysis and the method of systems ecology founded by odum h t, the authors discuss the aim and the principle of urban eco - environment planning under the sustainable development ; put forward the general view of urban eco - environment planning in which the kernel is the adjusting of industry structure, land - use structure and spatial pattern ; construct the dynamic simulating model of eco - environment planning of guangzhou city, china which organizes the models of economy, population, the equilibrium of carbon and oxygen, and other models of atmospheric diffusion, rainwater sedimentation, vegetation absorbing to so

    在剖析城市演化歷程中的功能變遷與導引的生態環境滯脹類型和危害的基礎上，著重利用系統生態學的原理和方法，探討了可持續發展要求下的城市生態環境規劃的目標原理和研究的內容方法及過程提出了以產業結構土地利用結構和空間格局的調整為核心制定城市生態環境規劃的總體思路創造性地融大氣擴散雨水沉降和植被吸納so
  11. Current research projects deals with the influence of climate change and land use, the extent of the last interglacial and other glacier studies, basin analysis, vegetation changes etc

    當今的研究計劃處理氣候變化和土地使用的影響、最後的間冰期和其他冰河研究的范圍、盆地分析、植物變化等。
  12. V ) occupying space and covering ground should be served as the main strategy in early stage of vegetation restoration, which would enable the community coverage to rehabilitate rapidly. in mid - stage, due to the change of light environment and the species substitution, component adjustment should be chose as the main strategy

    5 ）植被恢復的策略是早期階段以搶占空間、覆蓋地面的對策為主，群落蓋度恢復很快;中期階段，林內光照環境改變，物種替代，恢復對策以物種組成成分的調整為主;後期則是生物量積累與組成結構調整並重。
  13. 4 ) soil nutrient of leguminosae also higher than non - vegetation soil ; while organic matter and available k increased, there was no significant change in total n ( it increased slightly ) ; available p and soil ph decreased

    4 ）豆科植物較無植被覆蓋地，土壤養分朝著良性循環轉變。土壤有機質、速效鉀含量提高，全氮含量稍有增加，速效磷含量降低， ph值有所下降；這些變化主要發生在土壤表層。
  14. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  15. The percentage of autumn degradation bacteria was the biggest, it was 0. 547 %. among degradation bacteria genus, the bacillus proportion in each season was the biggest, that was 44. 44 %, 50. 00 %, 48. 15 % and 47. 22 % in spring, summer, autumn and winter respectively, other bacteria genus ' s proportion were less than bacillus. this was probably related to the basic proterties of soil, the alternation of four seasons, the change of temprature and the difference of vegetation were fairly suitable to the growth of bacillus

    在土壤細菌總數上，夏季的細菌數量最多，其次分別為春、秋、冬各季；在土壤中降解氧樂果的細菌數量上，夏季土壤中的降解菌株數量也最多，其次分別為春、秋、冬各季，土壤磷的含量與降解氧樂果細菌的數量之間並沒有太大的相關性（ r = 0 . 494 ） ；在降解菌占細菌總數百分比上，秋季降解菌株所佔百分比最大，為0 . 547 % ；在降解菌株中，芽孢桿菌屬（ bacillus ）在每一季節所佔的比例都是最大的，春、夏、秋、冬分別為44 . 44 % 、 50 . 00 % 、 48 . 15 % 、 47 . 22 % ，其它菌屬所佔比例都比較少，這可能跟土壤的基本性狀有關，春夏秋冬四季的輪換，氣溫的變化，植被的差異，耕作的不同，比較適合抗逆性較強的芽孢桿菌屬（ bacillus ）的生長。
  16. Oasis vegetation change in gansu hexi area by meteorological satellite monitoring

    氣象衛星遙感監測甘肅河西綠洲植被變化
  17. This paper examined the vegetation change from 2000 to 2004 by using the modis - ndvi data

    本文利用modis - ndvi遙感數據，對銀川平原2000 ~ 2004年間的植被變化趨勢進行了研究。
  18. Using by the method of difference analyze and the theory of regression analyze, the analyzed the spatial characteristic of vegetation change in arid land 6

    在差值分析和回歸理論的支持下，分析了乾旱區植被變化的空間特徵； 6
  19. The results of the study show that the affections to the local climate are rather obvious when the vegetation are changed in the west of liaoning province. of the several kinds of vegetation change in the west of liaoning province, the vanish and the resume of the forest is the mo

    本研究結果表明：遼西地區植被變化對當地氣候的影響是比較明顯的，在遼西地區植被變化的幾種形式中，森林的消失和恢復是影響當地氣候變化最重要的形式。
  20. According to the derived spore - pollen percent diagram and spore - pollen concentration diagram, the sequence of vegetation change recorded in the malan loess of xishan mountain, beijing area is as follows : zone p1 : in this zone the herbal pollens were overwhelming and the total pollen concentration was relatively high, so the vegetation during this period was arid grassland

    P3帶，該帶總體上花粉濃度較小，花粉濃度出現了多次波動，表明該時期氣候不穩定，植被在荒漠草原和乾草原之間變化。該帶可以分成下列5個亞帶： p3 ） ， p3 2p34pm和p3 5 。
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