次生葉 的英文怎麼說

中文拼音 [cìshēngyè]
次生葉 英文
secondary leaf
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  1. Leaves tufted ; stipes 15 - 30 cm long, densely scaly at base, glabrous above ; sterile lamina about 60 cm long and 20 cm wide, simply pinnate ; pinnae numerous, alternate or subopposite, linear - lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed ; veins close, forking once or twice and forming areoles near the midrib ; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0. 4 cm wide, lower surface almost entirely covered with sporangia

    葉簇生；葉柄長15 - 30厘米，基部密被鱗片，向上近光滑；不育葉片長約60厘米，寬20厘米，一回羽狀；羽片多數，互生或近對生，線狀披針形，最長者長達12厘米，寬約1厘米，頂端長漸尖，基部心形，邊緣有細密鋸齒；葉脈1 - 2次分叉，近中脈形成網眼；能育葉與不育葉相似，但較小，長約8厘米，寬約0 . 4厘米，下部滿布孢子囊。
  2. The pattern of the secondary growth of the soybean root is similar to that of most dicots.

    大豆根次生生長的類型和多數雙子葉植物相似。
  3. 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，並建立了衛星影像分類解譯標志。
  4. Directional silviculture experiment and benefits of natural secondary broad - leaf forest

    次生闊葉林定向培育試驗及效益研究
  5. Based on the principle of significant effect of soil fertility factors on forest growth, soil physical factors ( natural water content, bulk density, total porosity, capillary porosity, aggregate degree, coarse silt and physical clay ), chemical factors ( om. total n, alkali - hytrolyzable n, total p, humus and ha / fa ) and biological factors ( urease, acidphosphotase, invertase and microbes ) were selected as evaluation index system of soil fertility. applying principal component analysis, soil ifi of subalpine coniferous forest was calculated

    從土壤物理、化學、生物學三方面出發，建立了川西亞高山針葉林不同演替階段土壤肥力評價指標體系，應用主成分分析，計算出不同演替階段土壤肥力綜合指標值（ ifi ） ，各演替階段大小順序為： 10年生雲杉林地跡地原始林地次生樺木林地30年生雲杉林地20年生雲杉林地50年生雲杉林地60年生雲杉林地40年生雲杉林地。
  6. Utilization of tree species by forest birds during winter and summer in secondary deciduous woods

    次生闊葉林中某些鳥類對樹種利用的研究
  7. Results demonstrate that with the succession going on from herbosa shrubs coniferous forest theropencedrymion evergreen broad - leaved forest, abundance and diversity index of species, biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax

    結果表明：隨著草叢灌叢針葉林針闊混交林次生常綠闊葉林正向演替的進行，在未形成成熟而穩定的頂極群落之前，物種豐富度、物種多樣性指數、植被生物量及生產力都呈增大趨勢。
  8. The study has investigated and compared soil physical, chemical, biochemical properties of eight stands on paired sites in mountainous regions of northeastern china, trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity. the eight stands are 4 first rotation of larix olgensis plantations with different age classes, the second rotation of larix olgensis young stand, pinus sylvestris var

    本文通過固定和典型樣地，對東北山地不同生長發育階段落葉松人工林和二代落葉松幼齡林以及與二代落葉松幼齡林同一塊林地的樟子松幼齡林、天然次生林、落葉松水曲柳混交林等8個林型土壤質量進行了對比與分析，深入探討了落葉松人工林土壤質量降低的機理和不同發育階段土壤質量變化規律以及與森林生產力變化的關系，並提出了林地土壤質量調控措施。
  9. On the establishment of the social security system for the integration of urban and rural areas

    以廢次煙葉生產硫酸煙堿新方法的研究
  10. The conditions of its climate, moisture and soil are high quality. the mid - subtropical evergreen broad - leaved forest suffered the clear cutting fatally before 1950 ' s or in 1950 ' s. now the natural secondary evergreen broad - leaved forest grows well after half - century restoration

    在上世紀五十年代（包括五十年代）以前，這片中亞熱帶常綠闊葉林遭受毀滅性的皆伐作業，現在生長著的是經過半個世紀恢復的天然次生中亞熱帶常綠闊葉林，長勢良好。
  11. But the number of species actually distributed in the mountain is higher. 5 vegetation types were found in the mountain, they are : mountane rain forest, monsoon evergreen broad - leaved forest, mountane mossy evergreen broad - leaved forest, mountane top mossy thicket and secondary vegetation

    在西隆山分佈的植被類型有5種:山地雨林、季風常綠闊葉林、山地苔蘚常綠闊葉林、山頂苔蘚矮林和次生植被。
  12. The species diversity of the forest in this area is richer than in other secondary forests in the same region, which reveals that the community was disturbed moderately before

    野外調查結果表明，該群落的組成與結構比較復雜，群落的區系組成以落葉闊葉樹種為主，顯示出由中亞熱帶向北亞熱帶過渡性植被地段次生群落的特徵。
  13. Effects of sucrose and light on the growth and production of secondary metabolites in pueraria phaseoloides hairy roots

    蔗糖和光對三裂葉野葛毛狀根生長及次生物質產生的影響
  14. Today, the forest has been fairly well reestablished, tending to a mixed forest of evergreen broad - leaf and deciduous broad - leaf trees in succession

    該群落的物種多樣性在同地區的次生林類型中處于較高水平，表明群落以前受到過中度干擾，目前的恢復狀況較好，群落的演替趨勢是常綠闊葉落葉闊葉混交林。
  15. In addition, the pith of root and stem is flourishing for prosperous growth period and declining period, the vascular tissue storing the nutrient and providing the nourishment for the biennial plant in next year from abnormal secondary growth is developing in pith, unusual structure eg. epidermis and vice - epidermis, bubble form cell, short pipe numerators and wreath grid types leaf etc. in each organ of pugionium comutum ( l. ) gaertn. had been formed to adapt to dry environment, so the characteristics on appearance and anatomies in pugionium cornutum ( l ) gaertn. has closely of relation with its anti - drought and its adapting to desert environment

    此外，葉片旺盛生長期、衰退期根莖具發達的髓，髓內有異常次生生長形成的維管組織，貯藏養分，為沙芥次年形成二年生植株提供營養，沙芥各器官在解剖結構方面都形成了特化結構如具表皮及副表皮、泡狀細胞、短的導管分子及環柵型葉等以適應乾旱的環境，因此沙芥各器官的形態及解剖特點與其抗旱、適應沙漠環境有密切的關系。
  16. ( 2 ) compared to secondary natural forest, the amount of three main types of microbes in rhizosphere soil of different age of larix olgensis plantation correspondingly decreased largely, enzyme activity in non - rhizosphere soil reduced, the biochemical activities abated, and soil physical and chemical properties deteriorated

    （ 2 ）與天然次生林相比，落葉松人工林不同發育階段根際土壤三大類微生物數量均相應地有較大幅度的降低，非根際土壤酶活性減弱，土壤生化作用強度降低，土壤理化性質變壞。
  17. The results showed that the activity of pal in leaves was higher than in other organs in the stage of seedling, strong sprout and anthesis. the difference is highly significant in organs in vegetative growth. the content of isoflavones and pal activity in leaves both increased by degress, but they decreased progressively in stems, and little increase or decrease in roots from seedling to strong sprout to anthesis

    大豆界黃酮代謝機理的研究指要結實前的營養生長期苯丙氨酸解氨酶在組織中的活性變化表明，在幼苗期、壯苗期和盛花期，葉片中pal的活性都遠高於其它組織，依次為葉莖根，這種差異在結實前各時期表現極明顯。
  18. The regeneration trait of logging gaps in relation to sizes and ages in secondary broad - leaved forest which was predominated by tilia amurensis, acer mono and quercus mongolica in changbai mountain was studied

    摘要從林隙大小和林隙年齡兩個方面研究了以鍛樹、色木械和蒙古櫟為主的次生闊葉林經營採伐形成的林隙及其更新特徵。
  19. Pangquangou natural reserve lies in guandi hills in the west of shanxi province. it was established to protect crossoptilon mantchuricum, larixprincipis - rupprechtii, picea meyeri and picea wilsonii

    龐泉溝自然保護區位於山西省西部的關帝山林區內，是以保護一類重點保護鳥類? ?褐馬雞和華北落葉松、青桿、白桿天然次生林為目的的。
  20. In original and jamming slightly vegetation, because dead roots, branch and leaves back to soil, soil organic matter higher, soil available phosphorus higher, too ; chemical and physical characters of soil were stabilization. the reason were original vegetation have more species and structure of community was stable. the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community

    在人為干擾小的原生性森林，植物種類豐富，群落結構穩定，植物死根系和枯枝落葉全部回歸土壤，土壤有機質含量高，養分呈有機態為多，故有效磷較高，土壤理化性質較穩定；次生植被群落土壤結構和肥力的退化是由於群落組成和結構的改變導致枯枝落葉成分和土壤發規白山地還小問沙消民俗一非定俗地征王卿喬忡旺w比收財育環境差異而引起，次生植被土壤的退化狀態隨植被退化程度不同而有差異。
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