key species 中文意思是什麼

key species 解釋
關鍵種
  • key : n 1 鑰匙。2 要害,關口,要沖。3 關鍵,線索,秘訣;解法。4 (外國書的)直譯本,圖例,題解,圖解,...
  • species : n. 〈sing. , pl. 〉1. 種類;【生物學】(物)種。2. 【邏輯學】種。3. 【原子能】核素。4. 【法律】形式。5. 【宗教】聖餐物。
  1. The site protects key threatened species, including giant arapaima fish, the amazonian manatee, the black caiman and two species of river dolphin

    保護區為許多珍稀瀕危動物提供保護,例如巨骨舌魚、亞馬遜海牛、黑凱門鱷和兩種淡水豚類。
  2. Another key management measure to regulate fishing activities is the establishment of fpas, areas protected from all fishing activity, in which commercially important species such as sea bream, snapper and grouper may spawn and grow

    另一項主要的監管漁業活動措施是設立漁業保護區,全面禁止捕魚活動,讓石斑鯛魚和魚等高價魚能產卵及繁殖。
  3. The insect community of lichee orchard can be divided into 4 nutrient classes, which is phytophagous insect, predacity, parasite and saprophagous. the insect community also can be divided into 7 guilds : underground pest, eating - leaf - flower - fruit pest, puncture and suck pest, bristletail, predacity, parasite and moderate insect, and be divided into 32 groups, 41 dominance species and 10 key species

    荔枝園昆蟲群落可劃分為植食類,捕食類,寄生類,腐食類4個營養層; 7個功能集團:即地下害蟲,食葉、花、果害蟲,刺吸害蟲,蛀干害蟲,捕食類,寄生類,中性昆蟲; 32個類群; 41個優勢種; 10個關鍵物種。
  4. The functions of system include the display of classification information, the search of classification data, the background manage of database, and the identification of unknown species of termite based on the dichotomous key or multi - way search

    本系統具有分類資料顯示、分類資料檢索、數據庫的后臺管理和基於二項式檢索表的鑒定或多途徑檢索鑒定四個功能。
  5. Among them, euphausia pacifica, pseudeuphausia latifrons and p. sinica are dominant species that play a key role in the china sea. by means of the vertical slab polyacrylamide gel electrophoresis, genetic heterogeneity of three krill was investigated, in order to elucidate the genetic diversity and differentiation among them

    全世界海洋中磷蝦類近90種,中國近海磷蝦類迄今已記錄2科7屬47種,其中以太平洋磷蝦、長額磷蝦、寬額假磷蝦和中華假磷蝦為主要優勢種。
  6. In china, the species diversity of myxomycetes in the north temperate regions is well known, but that in the tropical and subtropical regions is still inadequately known and will become a key research point in the future

    研究表明,中國北溫帶地區粘菌多樣性比較明了,但熱帶和亞熱帶地區的物種多樣性研究是滯后的,不過這也是此領域在未來研究的重點。
  7. So the inve stigations of rempi in different systems have comprehensive value in basic field or applied field. in recently years, the photodissociation of sulfur and carbon contained polyatomic molecule has been attracted much attention because these species play a key role in atmospheric physics, environment pollution and ecological preservation

    對含硫、碳化合物的研究在大氣物理、環境污染、生態維護和生產應用中具有重要的作用,因此含硫、碳氫化合物的光解離動力學研究受到了較多關注。
  8. In the present study, eighty - one species of suborder flabellifera are found and described, of which 13 are new species and the other 29 species are recorded for the first time from chinese waters. key to chinese families and genera are provided. discussion on taxonomic problems is given and brief notes of the distribution are provided

    本文以傳統的形態分類為主,結合現代分類學的手段和方法解決近似種、疑難種的準確鑒定問題,搞清中國的屬種及分類上存在的錯誤和混淆,並結合已有的此類群研究結果,進行地理區系的比較。
  9. Finally, the level identification, classification of these nine endophytic fungi are studied through literature retrieving and comparison with related genus or type species, during which the characteristics of conidia and the result of physiological experiment are regarded as key words and as assist respectively. the ultimate result of these strains " classification are that one new species coniothyrium macrospora y. xiang et j. x. cui sp. nov. ( 1026 ) ; five new recorded - genus in china : papularia sphaerosperma ( pers. ex fr. )

    以形態學性狀中的分生孢子特徵為主題,以生理實驗結果為輔助,檢索文獻,與相關種和模式種進行對照比較,對這些內生真菌進行水平的菌種鑒定分類,其中菌株1026為一新種:大孢盾殼霉( coniothyriummacrosporay . xiangetj . x . cuisp . nov . ) , 5株為中國新記錄屬種: 1005球乳突孢[ papulariasphaerosperma ( pers . exfr . ) vonh (
  10. In nature conditions, without the injection of the extraneous hormone, the females and males of f _ 9 - f _ 12 could mate each other to produce new next generation of tetraploids. with the stable genetic tetraploidy and the fertility in the nature environments, this allotetraploid population possessed the key factors to form a new species with 200 chromosomes

    F _ 9 ? f _ ( 12 )染色體數目的穩定性和正常的性腺結構以及自然條件下的生殖傳代行為,說明該異源四倍體鯽鯉已成為一個染色體數目為4n = 200 、遺傳性狀穩定的新型四倍體魚群體,具備形成一個新的種群所需的關鍵因素。
  11. The order euphausiacea consists of 86 or 87 species distributed over the ocean of the world, plays an important role in marine ecosystem, particularly in southern ocean, and is the key link of marine primarily productivity and higher trophic levels. krill fisheries are relatively recent developments. 47 species belonging to seven genera of two families in krill were recorded in china seas

    磷蝦是一類大型的海洋浮遊動物,數量大,分佈廣,是海洋浮遊動物的重要類群之一,在海洋生態系統中具有重要地位,尤其在南大洋,是維系海洋初級生產者與更高營養階的主要環節之一;同時,磷蝦又是許多經濟魚類的主要餌料,近年來,磷蝦作為新興的漁業資源正引起人們的高度重視。
  12. An identification key of chinese ophichthidae is provided for each of the 13 genera and 33 species recognized

    對中國已有種類進行了詳盡的整理,編制了包括13屬33種蛇鰻科魚類的屬種檢索表。
  13. The first chinese isoptera classification information and key database were built by the lamp in this paper. this databank could provide us the termite classification information and let us identify the unknown species through two ways of dichotomous key or multi - way search

    本系統以此作為開發和應用平臺,第一次建立起了中國等翅目昆蟲的分類信息和檢索表數據庫,實現了對分類資料的數據庫化和基於二項式檢索表的分類鑒定和已有種多途徑檢索。
  14. The key database consists of family key tables, genus key tables and species key tables

    檢索表數據庫包括分科檢索表、分屬檢索表和分種檢索表。
  15. This would involve considering the food requirements of key species in ecosystems ( notably those of marine mammals ), phasing out fishing gear that destroys the sea bottom, and implementing marine reserves, or “ no - take zones, ” to mitigate the effects of fishing

    這樣的管理會在顧及漁業的同時,設法維持(必要時重建)生態系的結構與功能;包括考慮生態系中關鍵物種(如海洋哺乳類)的食物需求、分階段撤出破壞海床的漁具及實施海洋保留區或禁捕區,緩和漁撈的影響。
  16. The moderate insect includes 227 species, which hold the 61. 52 % of the whole community. the total quantity of pest in the three experimentation sections is 4935, and the sequence of quantity to the three sections is blank section ( 2213 ) > harmless section ( 1551 ) > general section ( 1171 ). the key pests are olethreutes leucaspis meyrick, conopomorpha sinemis bradley, xyleborm fornicatus eichhoff, dasineura sp

    三個試驗區害蟲調查總數量為4935頭,各區數量大小依次為:空白區( 2213頭)無公害區( 1551頭)常規區( 1171頭) ,關鍵害蟲為三角新小卷葉蛾,荔枝蛀蒂蟲,茶材小蠹,荔枝葉癭蚊,荔枝癭蟎,樟翠尺蛾,荔枝蝽。
  17. The alga regulates its inside turgor to adapt the outside osmotic change by synthesizing a large amount of glycerol. it is important to study glycerol - 3 - phosphate dehydrogenase, the key enzyme of the glycerol metabolism to know how the species can sustain the hyperosmotics press by accumulating so much glycerol

    該藻通過甘油進行細胞膨壓的調節,因此對甘油合成途徑上的關鍵酶3 -磷酸甘油脫氫酶( glycerol - 3 - phosphatedehydrogenase ,簡稱為gpdh )的研究是至關重要的。
  18. With the acceleration of extinction of species, biodiversity conservation is extensively concerned. the extinction of species is concerned with the degree of threat by biotic and abiotic factors. so, taking action to preserve plant species is very necessary and paramount before their extinction. one of the most effective biological techniques to conserve the biodiversity is the establishment of genebanks, i. e. ex situ conservation. the elucidation of various factors that regulate seed viability and vigor in storage is essential. an ideal condition to prolong the longevity is mainly depended on seed water content, temperature, humidity and types of containers used during storage. the optimum stage of seed maturity, harvesting techniques and processing, in addition to physiological features such as degree of dormancy, also play key roles in seed storage. certainly, desiccated seeds deteriorate with time even under extremely good genebanking conditions. according to seed storage behavior, it is necessary to consider three principal factors : storage environment, storage duration and plant species which will affect seed survival under good genebanking conditions. the present review is an attempt to discuss the importance of the aforementioned aspects of seeds in detail in order to conserve plant germplasms ( especially wild rare and endangered plants ) for ex situ conservation through seed - gene bank

    一個物種的滅絕是與其受生物因子和非生物因子的威脅程度相關的.隨著物種的加速絕滅,保護生物多樣性受到廣泛地關注.保護生物多樣性的最有效的生物技術之一是建立種子基因庫,進行遷地保護.種子庫理想的貯藏條件主要取決于種子含水量、貯藏環境(如溫度和濕度)和貯存種子的容器.進行種子貯藏,了解種子生命力和活力的影響因子的作用機理是十分重要和必要的.除了種子自身的生理特徵外,種子的貯藏壽命與種子成熟度、收獲技術、加工處理方法也是息息相關的.即使在最適的庫存條件下,種子也會隨時間發生劣變.因此,必須根據種子特定的貯藏行為,加以考慮影響種子存活的3個主要方面(貯藏環境、貯藏期和植物種類)而選擇有效的貯藏方案.本文試圖討論種子貯藏生理的幾個重要方面及其需解決的技術問題,以便更好地通過種子基因庫,長期有效地保存植物種質資源
  19. Some dominance species can be turned into key species under proper conditions

    個別優勢種在適當的條件下可演變為關鍵物種。
  20. Key keyboard control around mobile, the next key species radish, radish on the press button watering of course, you can wait rain, a carrot cooked blinks immediately by pulling on the bond, otherwise, it was a rabbit stole 1, 10

    鍵盤左右鍵控制移動,下鍵種蘿卜,在蘿卜上按下鍵可以澆水當然你也可以等下雨,蘿卜熟了會閃爍,馬上按上鍵拔出,否則就被兔子偷走咯。
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