種群增長 的英文怎麼說
中文拼音 [zhǒngqúnzēngzhǎng]
種群增長
英文
population growth-
The influence of temperature and host plants on the experimental population of aphis gossypii glover
溫度和寄主植物對瓜蚜實驗種群增長的影響Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew
運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。The method of modified simplex was applied to optimize the models, and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form. taxus chinensis var. mairei population, and the highest growth rate of basal area was the tenth age class, namely the phase when breast diameter was 68 ~ 76 cm
以胸高斷面積代替種群生物量，分別採用logistic常規模型及劉金福提出的logistic改進模型對南方紅豆杉種群的增長動態進行研究，運用改進單純形法對模型進行優化，擬合結果表明改進模型比logistic常規模型更符合南方紅豆杉種群的增長趨勢，南方紅豆杉種群的最大增長速度出現在第10齡級，即胸徑為68 76cm時期。It permits a population to spread as the population increases, and it enables the colonization of new sites.
它使得種群在其增長的時候得以擴展它的分佈區域並移居到新的場所。Effect of temperature on the population increase of liriomyza sativae and liriomyza huidobrensis diptera : agromyzidae
溫度對美洲斑潛蠅及南美斑潛蠅種群增長的影響The vegetative tiller can produce more buds than the reproductive tiller on hordeum brevisubulatum population, and the age structure of bud from either vegetative tiller or reproductive tiller is an increasing model
野大麥種群營養蘗分蘗節的營養繁殖力比生殖蘗強，營養蘗和生殖蘗上芽的組成亦均為明顯的增長型年齡結構。In this dissertation, the interactive system of delphastus catalinae ( horn ), its preys and competitor was studied, including comparison between alternative preys and natural prey consumed by d. catalinae ; the system of d. catalinae and its preys ; morphology comparison between d. catalinae and its competitor serangium japonicum chapin ; biology, ecology and predation of s. japonicum ; and also the interspecies competition between d. catalinae and s. japonicum. 1. besides whitefly pests, d. catalinae could also feed on two species of alternative preys : tetranychus nr
Fijiensis和桃蚜myzuspersicae （ sulzer ） ，並在實驗室條件下，以自然獵物煙粉虱bemisiatabaci為對照，研究了替代獵物對小黑瓢蟲的發育、存活、繁殖及對實驗種群增長的綜合影響，結果表明： （ 1 ）小黑瓢蟲以蚜蟲為獵物時，成蟲不會產卵，但可延長成蟲的壽命；以紅蜘蛛為獵物時，成蟲可產卵並可完成整個世代。Effect of temperature on the population increase of corn leaf aphid, rhopalosiphum maidis
溫度對玉米蚜種群增長的影響Effect of temperature on the population increase of corn leaf aphid rhopalosiphum maidis on wheat
溫度對小麥上玉米蚜種群增長的影響In addition, it has also been applied to the management and prediction of the ecology system, especially the marine ecology, and the control of the environment pollution
它已廣泛的應用於研究微生物的種群增長和相互作用規律，也應用於生態系統尤其是水生生態系統的管理，預測和環境污染的控制。The model was reliable and accurate, it can be used to forecast of diameter growth and can amplify and develop the methods of population ' s development and prediction
經檢驗，該模型預測胸徑的生長量具有較好的可靠性和精度高等優點，從而豐富和發展了種群增長模擬與預測預報的方法。Relative results which have obtained in [ 1 ] are generalized. results provide theory basis for objective management of renewable biological resources. many objective problems often be trans - ferred to how to find the solution of differential equation ( ode, fde )
本文在第二部分研究了以gilpin - ayala單種群增長模型為基礎，假定生產函數為ex ~ （為正常數）的捕獲模型的最優開發問題，確定了最優開發策略，推廣了文獻[ 1 ]中已有的相應結果，為可再生生物資源的實際管理提供了理論依據。Stability analysis of solutions to the mathematical model describing a class of biomass increases
一類生物種群增長的數學模型解的穩定性分析Tiller renewal rate ( rr ) was used to describe the population growth rate on modular level
提出以分蘗更新率r _這一指標來表示無性系構件水平的種群增長率。The temporal and spatial dynamics of a single species metapopulation is modelled by a model. the stability of spatial distribution of the population and relationships between the stable patchy distribution and migration rates and finite rate of growth of subpopulations are also investigated. finally measures to boost the growth of total population are presented through the model and analysis of the model
通過模型模擬了呈一般綴塊分佈的單種種群的時空動態.討論了種群空間分佈的穩定性及穩定綴塊分佈與種群在綴塊間遷移率和子種群增長率之間的關系，並由此提出了促進全局種群增長的措施Oscillation of positive solutions of a single population growth model
一類單種群增長模型正解的振動性In [ 17 - 20 ], some single - species models of growth were given
文獻[ 17 - 20 ] ，給出了一些單種群增長模型The influence of temperature on the population increase of takecallis taiwanus takahashi
溫度對竹梢凸唇斑蚜種群增長的影響The key factors, which influence the growth of population of troides aeacus, include habitat loss, abnormal climatic conditions and natural enemies
雌雄性比為： 1 : 3 。影響種群增長的主要原因是生境喪失、異常氣候條件和天敵。分享友人