穩定種群 的英文怎麼說

中文拼音 [wěndìngzhǒngqún]
穩定種群 英文
stable population
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 種 : 種名詞（姓氏） a surname
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 穩定 : 1 （使穩定） stabilize; steady 2 （穩固安定） stable; steady 3 （物質的性能不易改變的作用） stabi...
  1. The reproductive characteristics and population structure of artemisia ordosica, hedysantm scoparium, caragana korshinskii and the reproductive characteristics of annual plants eragrostis poaeoides and bassia dasyphylla were observed in shapotou artificial revegetation area. stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition. the study showed that : the artificial - natural vegetation built with sandbreaks and plants is stable in shapotou area

    通過對沙坡頭人工固沙植被區主要建植種群檸條（ caraganakorshinskii ） 、花棒（ hedysarumscoparium ）和油蒿（ artemisiaordosica ）的繁殖特性及種群結構的研究，以及自然侵入的一年生草本植物小畫眉草（ eragrostispoaeoides ）和霧冰藜（ bassiadasyphylla ）繁殖特性的研究，探討了在植被的持久性和變異性，分析評價了主要受惡劣環境壓力下的人工固沙區植被的穩定性。
  2. Interspecific competition and community stability of variegated alfalfa awnless brome mixture

    雜花苜蓿與無芒雀麥混播群落種間競爭及穩定性
  3. It has reached to the point where the various features of group psychology are being studied, the aim of which is to effectively organize and control group activities so as to maintain social stability and promote economic development

    一百年來，該學科經歷了五個發展階段，目前的研究正深入群體心態所具有的種種機制，目的是為了有效組織並引導群體行為，促進經濟社會的穩定發展。
  4. How do the populations maintain this homeostasis ?

    種群如何能維持這種內穩定狀態呢？
  5. 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。
  6. In the light of the recent work in biological models, especially in the chemostat models, the dissertation provides a systematic study on the asymptotical behaviour of some chemostat models built by delay or diffusion differential equations. the main contents and results in this dissertation are as follows : i ) the global asymptotic behavior of the chemostat model with the beddington - deangelies functional responses and time delays is studied. the conditions for the uniform persistence of the competing populations are obtained via uniform persistence of infinite dimensional systems

    本論文基於當前生物學模型，特別是恆化器模型的研究現狀，深入系統的研究了時滯和擴散方程描述的幾類恆化器系統的漸近性態，本文的主要內容包括以下幾個方面：一、研究了具有beddington - deangelies功能性反應函數的時滯恆化器模型，利用無窮維連續動力系統的一致持續生存的理論給出了兩競爭種群一致持續生存的充分條件，利用單調動力學系統得到了系統的全局漸近穩定性。
  7. The locally asympoticl stability of a two - species competitive system with optimal harvesting and cannibalism

    帶收獲和自食的兩種群競爭系統局部漸近穩定性
  8. 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。
  9. To ensure public order and social stability, it is imperative that we correctly handle internal contradictions among the people as they crop up under changing circumstances, improve the mechanism for forestalling and resolving conflicts and disputes, and properly handle letters and complaints from the people

    正確處理新形勢下人民內部矛盾，健全預防、化解各種矛盾和糾紛的機制，重視做好人民群眾來信來訪工作，維護正常社會秩序和社會穩定。
  10. From outside, the 2, 711 dark gray slabs form a gentle wave, ankle - high in some places, designed to give visitors a sense of instability, a loss of orientation

    從外觀來看，紀念碑群由2711根長短不一的灰色碑柱組成，從遠處望去，黑灰色的石碑如同一片波濤起伏的石林，讓遊客不由自主產生一種不穩定的、迷失方向的感覺。
  11. The wusuli river group has its stationery tour route, the spawning population wing up heilongjiang river and swims into wusuli river in early may when ice has melt, reproduces during mid june to july in middle part of wusuli river

    烏蘇里江種群在烏蘇里江有較穩定的洄遊路線，產卵群體自5月初解凍后，沿黑龍江上溯，進入烏蘇里江並沿江上溯， 6月中旬至7月初在烏蘇里江中游產卵。
  12. According to the theory of differential inequality and the comparision theorem, we will establish some new and more practical criteria of the extinction, uniform persistence and globally asymptotical stability for partial species of the above system. since the narrate of the main theorem is long, we omit it. to see section 2 of chapter 3 for details

    通過利用微分不等式理論，比較定理及構造適當的lyapunov函數，得到了判別種群持續生存、滅絕和全局漸近穩定性的三個定理，這便是第三章的主要內容，由於定理較長，這里不作敘述，詳見第三章第二節。
  13. The changes of spider community structure in transitional zone has important effect on the changes in cotton field

    荒漠過渡帶蜘蛛群落的物種數、個體數量、多樣性、均勻度、穩定性都高於棉田蜘蛛群落的對應特徵。
  14. From the age structure of the studied monkey group, they belong to stable population. 2

    從本項研究得出的年齡結構看，該地區的川金絲猴種群屬于穩定型。
  15. Thinning stands with the thinning intensity of about 20 % and 30 % had no significant effects on species diversity, biomass of shrub and herb, and physical properties of soil

    各林分的樹種組成在12年間基本沒有發生變化，即間伐沒有顯著地改變林分的樹種組成，目前的樹種組成即落葉松、其他針葉樹（雲杉、冷杉和紅松）和闊葉樹組成比約為6 : 3 : 1可能是相對穩定的群落。
  16. It was shown that the species compositions became richer and richer from upper mountain slope to low mountain slope and pin us yunnanensis, keteleeria evelyniana, cyclobalanopsis delavayi populations as the dominant population belonged to degenerative growth type, up growth type and stable growth type, respectively

    結果表明：從山坡上部到下部，物種的組成越來越豐富，其中的優勢種群雲南松屬于衰退型、滇油杉屬于增長型、黃毛青岡屬于穩定型。
  17. It was found that high transplantation efficiency and stable production can be achieved by improving egg fertilization, and egg stocking pattern, by high density of fertilized eggs, and by fertilization and feeding

    結果表明，通過控制受精卵的質量，選擇適宜的投卵方式，保持比較高的受精卵投放密度，並在形成較大種群時進行施肥，增加餌料生物量等方法，可提高移植增殖效果，獲得持續穩定的高產。
  18. Stable groups and the presence of the stallion also help to fend off predators such as wolves, lions and hyenas

    有種馬存在的穩定群體，也較能防禦掠食動物如獅子、狼和鬣狗的攻擊。
  19. " in the first few years ( arctic ) spiders might have better chances but as stable populations come up of new species the situation will completely change, " he said

    尼克爾說： 「最初幾年的變化對北極蜘蛛而言也許是好事，不過一旦出現新種並形成穩定種群，情況就完全不同了。 」
  20. Green spaces moderate water cycles, absorb pollutants, regulate atmospheric gasses, buffer the spread of crop and livestock diseases, capture energy, stabilize populations, act as gene pools, and provide habitat for wildlife

    這綠地是用於調緩水資源，吸收污染物，調節大氣，緩沖作物和牲畜病害，獲取能源，穩定種群人口的。
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