environmental evolution 中文意思是什麼

environmental evolution 解釋
環境演化
  • environmental : adj. 1. 環境的,環境產生的。2. 環境藝術的。adv. -ly
  • evolution : n 1 發展,發育;開展。2 (氣體等的)放出;散出,放出物,散出物。3 發生;演變;【生物學】演化,進...
  1. Concurrent with the evolution of environmental engineering practice, analytical methods have been developed.

    與環境工程進展相一致,已發展了某些分析方法。
  2. We live a scant three score and 10 years, far too short a time to witness evolution, continental drift or long - term environmental changes

    我們的平均生命僅有70年,實在短得不可能目擊演化、大陸漂移或長期的環境變遷。
  3. But the recent discovery of detailed similarities in the skeletal structure of the flippers in all three groups undermines the attempt to explain away superficial resemblance as due to convergent evolution ? the independent development of similarities between unrelated groups in response to similar environmental pressures

    但是,最近的發現,這三種動物的鰭足的骨骼結構都有詳細的類似之處,這個發現削弱了下文的企圖,即把表面上的類似解釋為趨同進化的結果? ?是指類似結構的獨立發展,在不相關的種群之間,對于類似的環境壓力的反應。
  4. This work carries out a temporal - spatial analysis and comparison in facial pattern, grain - size, and susceptibility of the sediments of the hunshandake sandy land ( hsl ) on the basis of studies of more than fifty geological sections, a number of samples collected from surface sands as well as results derived from previous studies. the preliminary results of this work provide new environmental information of the working area, which makes it possible to have a brief discussion about the evolution of the hsl since the late glacial epoch. this work can be summarized as the followings

    晚冰期,渾善達克沙地全面擴張,達到了沙漠化最大規模,剖面中的古風成砂是最直接的證據,此時氣候乾冷;全新世早中期,渾善達克沙地成壤比較好,是一個大面積成壤期,相當于全新世適宜期,此時氣候暖濕;全新世晚期,渾善達克沙地沙漠化正過程加強,在沙地各剖面上普遍發育風沙沉積,氣溫較乾冷;目前:渾善達克沙地為另一成壤期,成壤作用相對于適宜期較差,氣候乾暖。
  5. Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model

    第二,討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據,發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大,這有利於對稱不穩定的發生。第三,採用f平面、非靜力平衡、濾聲波模式,討論了中尺度垂直環流非線性攝動分析及演變方程。
  6. The ways of study are followed : insp - ecting and observing their living condition on the open fields ; cultivating sp - rout, examining physiological and biochemical changes in plants ; paraffin sec - tioning. the study results show : due to the species diversity, though the sproutsof xerophyte have several strategies to adapt to environmental drought in the long term evolution process, they have obtained same adapting mechanism to the short of water

    研究結果表明:由於物種多樣性,在長期的適應演化過程中,旱生殖物幼苗對惡劣生境的適應方式多種多樣,但其對水分條件的適應機理卻是一致的。與生命周期短暫的短命植物不同,多年生旱生植物的當年生幼苗,當面臨水分脅迫時,其結構和生理功能具有迅速改組與完善的特徵。
  7. User can search their online catalogue, or browse for titles in the nine departments : biology & ecology, conservation & biodiversity, natural history & travel, palaeontology & evolution, earth & environmental sciences, sustainable development, reference, etc

    用戶可以通過著者、題名等入口直接檢索在線目錄,也可以通過瀏覽主題分類目錄(包括:生物學與生態學、自然保護與生物多樣性、古生物學與進化、地球科學與環境科學等九大類)了解相關信息。
  8. The pedosphere offers human beings and other terrestrial organisms resources and environment for survival and development. the paper elaborates the definition of soil environmental quality and the evolution process over the past 100 years. focusing on the analysis of factors influencing the evolution of soil environmental quality, some pollution prevention measures are put forward

    闡述了土壤環境質量的定義以及近百年來的土壤環境質量的演變,著重分析了土壤環境質量演變的諸多影響因素,並提出了土壤污染防治的對策。
  9. The strata and environmental evolution in the late quaternary in the chengdao area and modern yellow river delt coast

    埕島及現代黃河三角洲海域晚第四紀地層與環境演變
  10. As one of the typical environmental disasters at south strand plain in laizhou bay, occurrence, development and variation of salt - water intrusion have close relationship with paleo - environmental evolution since late pleistocene, and with modern environmental change and human activities

    摘要通過對萊州灣南岸鹹水入侵較嚴重地濰河下游地區晚更新世以來沉積特徵及現代自然環境條件變化的分析,探討了沉積相對鹹水入侵產生及空間范圍特徵的環境機理。
  11. The quaternary environmental evolution of the beijing plain region mainly depends upon the neotectonics and palaeoclimatic changes, which controlled and influenced the distribution, evolution of depositional areas and uplifting erosional areas and changes of sedimentary types, and also the scale and scope of quaternary transgressions

    冷暖交替的軟體動物組合,反映了本區第四紀時古氣候的變動特點。北京?通縣平原地區的第四紀環境演變,主要取決于氣候變化和新構造運動。
  12. With the widespread and profound impacts of global change on the natural elements and progress, the society and economy, and even the human activities, the study of global change has become one of the most active frontiers in the current earth science research field. especially, climatic and environmental changes of holocene and human history is a very important time scale of the study of global change. however, the geographic surroundings and the natural environment of the southern margin of tarim basin, which lies in the hinterland of eurasia continent, are so special that it is difficult to obtain the proxies indicating its environmental evolution

    在多年來前人研究成果的基礎上,本文通過尼雅剖面年代解析度可達10a的沉積物質量磁化率、碳酸鹽碳同位素、粒度等氣候替代性指標及約特干剖面的地球化學元素、孢粉等氣候指標信息的結果分析,並結合達木溝、塔格勒等剖面的成果及相關資料,得出以下結論: ( 1 ) 、南疆塔里木盆地南緣中全新世6 . 7 3 . 0kab . p .以氣候溫暖偏乾的荒漠環境為總體特徵。
  13. The neogene is a key stage of terrestrial environmental evolution in yunnan. three stratigraphic sections including luhe ( late miocene ), yangyi and longling ( late pliocene ) were selected to reconstruct vertical landscape of paleovegetation in these areas, based on palynological data. according to principle of the coexistence approach, seven quantitative paleoclimatic parameters of each deposit area were obtained by using meteorological data ( 1951 - 1980 ) of the distribution area of extant taxa found each palynoflora in china

    晚第三紀是雲南地區環境演變過程中的關鍵地質歷史時段,本論文以晚第三紀晚中新世(呂合) 、晚上新世(羊邑和龍陵)地層中的孢粉為研究對象,結合同層位大化石植物證據,參照現代植被,恢復了雲南三個化石出產地區的古植被垂直分佈景觀,並定性地描述了古氣候;同時運用共存分析方法( theco - existenceapproach )定量化地重建了三個地區的古氣候參數值;初步推測了沉積地可能的古海拔。
  14. The studies to exhibit the sedimentary source in the east china sea during the last glacial age are of great significance to reveal the hydrologic situation of paleo - continent and paleo - ocean, climate change and environmental evolution

    分析末次冰期東海沉積物來源,對揭示古陸、古海洋水文狀況、氣候變化和環境演化都有重要意義。
  15. On the basis of the analysis on the yangtze vole ' s disaster history and condition in dongting lake area, the influence of the lake beach ' s environmental evolution on the vole disaster is studicd in this paper. the rise of low - middle - level beach area causes the vole ' s population explosion, the reduction of high - level beach area forces the voles into the farmland during the flood season, and the emergence period ' s continual increase extends the vole ' s habitat areas and forces them to migrate into the farmland. the discarded dike provides a rest place halfway for the voles, which escape the flood, and the natural enemies of the voles, which are a natural barrier against the vole ' s population expansion, decreases. according to this study, the conclusions are put for ward as follows : after three - gorge project ' s construction it will produce great influences on the beach evolution in dongting lake area, leading to the changes of the vole ' s ecological environment situation and resulting in the vole ' s population changes which deserves attention

    在分析洞庭湖區東方田鼠暴發成災史及災情的基礎上,研究了洞庭湖區洲灘演變對東方田鼠暴發成災的影響.研究認為,中低位洲灘出露面積不斷增大使東方田鼠種群迅速膨脹,高位洲灘出露面積減小造成汛期東方田鼠大量向垸內農田遷移;湖區洲灘冬春季連續出露天數增加延長了東方田鼠的繁殖期;汛期洪峰水位增高,洲灘大面積淹沒迫使東方田鼠大量遷向垸內;湖內廢棄湖堤為東方田鼠逃避洪水提供了中途休養之地;洲灘地抑制東方田鼠種群膨脹的天敵數量已大大減少.據此,本文指出,三峽工程建成后將對洞庭湖區洲灘演變產生重大影響,因而將改變東方田鼠種群生態環境條件,引起種群動態變化,值得注意
  16. In this study, three typical high - resolution holocene soil profiles in the weihe valley were studied using particle - size analysis, measurement of magnetic susceptibility, total fe, toc, caco3, rare earth elements and others. the results provide new insights into pedogenic environmental evolution and human impact of cultivation on soil development in this climatically sensitive semiarid zone

    通過對各指標實驗結果及其成壤環境意義的分析,探討了全新世渭河流域成壤環境的演變以及土壤發育的特點;並藉助歷史文獻和環境考古的成果,分析了人類活動與成壤環境之間的相互作用及其人地關系演變的過程。
  17. Geographic environmental evolution in the qingdao coastal area under the influence of global change

    全球變化影響下青島海岸帶地理環境的演變
  18. Water - land resources utilization and environmental evolution in middle to lower reaches of heihe river basin during the past 2000 years

    000年來黑河中下游水土資源利用與下游環境演變
  19. The research on eco - environmental evolution, control and adjustment for the arid land in western china : research progress and prospect

    中國西部乾旱區生態環境演變與調控研究進展與展望
  20. ( 3 ) combining experimental data of environmental evolution with high resolution with historical data, it is showed that some coupling relationships exist between evolution of human culture and evolution of soil formation in the weihe valley during holocene. during 8 500 - 3 100 a b. p.,

    ( 3 )通過將環境資源演變較高解析度的實驗數據資料和史料記載相結合,分析發現全新世以來,渭河流域人類文化的演進與成壤環境的演變之間存在著一定的耦合關系。
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