geographical variation 中文意思是什麼

geographical variation 解釋
地理變異
  • geographical : adj. 地理學的，地理的。adv. -ically
  • variation : n 1 變化，變動。2 變量，變度，偏差。3 【語言】語尾變化；變體，異體；【數學】變分，協變；順列；【...
  1. Salt - tolerant variation in asian cultivated rice oryza sativa l. an alyzed from classificatory and geographical differences

    從分類和地理差異看亞洲栽培稻的耐鹽性
  2. In this dissertation, the author analyzed plant biodiversity in yunmengshan forest region with field survey on plant species and forest vegetation, the results show that : the vascular plants in yunmengshan forest region include 548 species ( variation ) which belong to 319 genera, 98 families, the flora geographical composition are complex, the dominant characteristics of flora are temperate zone plants which account for 55 percent, herbaceous species occupy 75 percent exclusively. evaluating the threatened hierarchy of plants in yunmengshan forest region, the results show that the number of critically endangered species is 7, endangered species isll, vulnerable species is 53, lower risk species is79, safty species 376

    本文在對雲蒙山林區的植物物種、植被進行調查的基礎上，進行植物多樣性分析，研究結果如下：雲蒙山林區共有維管束植物98科319屬548種和變種，地理成分復雜，包括中國全部屬的15個分佈區類型，區系組成以溫帶成分為主，佔55 ；生活型譜中，草本植物種類占絕對優勢，比例為75 . 3 ；通過瀕危評價，得出雲蒙山林區植物極危種7種，瀕危種11種，漸危種53種，敏感種79種，安全種376種。
  3. Variation in population characteristics across a geographical area ; may be related to environmental gradients or may have no functional significance

    族群特性在穿越一個地理區不同的地理環境之間之變異性。
  4. The result of the cluster analysis at the individuals level shows that most of the individuals from different populations cluster together and the individuals from one or two populations does n ' t emerge in some phenons, which means that certain degree of morphological and genetic differentiation occurred among populations. this also reflects that there is genetic heterogeneity among individuals or the variation of micro - habitats in a same population. from cluster analysis at the population level we found that there is obvious differentiation between the populations from east hot spring and the populations from other places, this differentiation probably caused by the geographical isolation among those populations

    對所測量的形態特徵的數據在個體水平上進行聚類結果表明，同一種群的個體並不是完全有序地聚在一起，而不同種群間的個體常無序地聚在一起，同時也有一些大的表徵群不出現某些種群的個體，說明部分種群間有一定的分化，這也反映了種群內部個體間的遺傳異質性或由於種群內部微生境的差異導致的種群內個體間的形態異質性。
  5. The genesis and variation characteristics are suggested on the basis of the analysis of typical groundwater hydro - chemical section monitoring, geographical prospection data and hydro - chemical analysis from more than 100 geological cores

    通過對濰河下游地區100餘個地質鉆孔水化學連續監測資料分析，闡明了鹹水入侵的特徵，有針對性地提出了鹹水入侵的防治措施。
  6. Normally water resources is affected by human activities and climatic change, but it is affected mainly by climatic change in runoff forming regions located in the high and middle mountainous area in the northwestern china. river runoff in the hexi inland arid region all originates from the qilian mt. area and the change of mountainous runoff resulted from global weather warming up and will bring an important effect to the development of society and economy in the hexi region. so the response on mountainous runoff and its changing trends are analyzed on the basis of the measured data of precipitation, air temperature, and discharges observed from some weather and hydrologic stations in the studied area. the results show that seasonal variation of mountainous runoff in the hexi inland region is mainly affected by the river ' s geographical location and supply source, and the yearly change by precipitation and that in the west of the region by air temperature besides precipitation. there are some obviously regional differences in the influences of climatic change on surface runoff in the hexi inland arid region, that is, rivers runoff in the west of the hexi area have been increasing and rivers in the east part have been decreasing, and the rivers runoff in the central part presented slowly increase trend, such as the heihe river, but it is not quite obvious

    一般情況下，水資源的變化主要受氣候變化和人類活動的影響，但在位於我國西北內陸乾旱地區的中高山地帶，徑流的形成主要受前者的影響.甘肅省的河西內陸乾旱區是該省重要的工農業生產和經濟開發區，這里各項社會和經濟活動與出山徑流的變化都有著十分密切的關系.因此，筆者根據有關水文氣象臺站的降水、氣溫和徑流觀測資料，分析了以黑河、昌馬河、西營河等主要河流為代表的河西內陸區出山徑流的變化特徵與規律.結果表明，河西內陸區出山口徑流的季節變化主要受地理位置和河流補給來源的影響，而年際變幅則受山區降水量年際變化及變幅的影響十分明顯.目前，梨園河以西河流水量處于上升階段，梨園河以東的河流則處于下降的階段;以黑河幹流鶯落峽水文站年徑流為代表的走廊中部地區的出山口徑流正處於1990年開始的枯水段的上升段.但總體而言，河西內陸乾旱區出山口徑流的變化相對比較穩定.預計今後若干年內，河西內陸乾旱區東段河流出山口徑流的變化以偏枯為主，中段、西段河流出山口徑流的變化以平水或平水偏豐為主
  7. Geographical variation in the breeding systems of an invasive plant, eichhornia crassipes, within china

    入侵植物鳳眼藍繁育系統在中國境內的地理變異
  8. It refer to the biologically fixed character of their relationship to the environment, even if geographical variation is introduced

    這涉及到生物的固定特徵與環境的關，即便考慮到地理的變異因素。
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