population ecology 中文意思是什麼

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 course covers productivity and biogeochemical cycles in ecosystems, trophic dynamics, community structure and stability, competition and predation, evolution and natural selection, population growth and physiological ecology

課程包含生態系之生產力與生物地質化學循環、營養動力學、群落結構與穩定性、競爭與捕食、演化與天擇、族群成長，及生理生態學。

Experimental population ecology of carcelia matsukarehae shima diptera : tachinidae

松毛蟲狹頰寄蠅實驗種群生態學研究

In this thesis, hordeum brevisubulatum ( trinius ) link, which is one of the fine and important forage grass species in the north of china, is researched on its growth and development, physiological ecology and population ecology

本論文對野大麥（ hordeumbrevisubularum （ trinius ） link ）這一北方優良牧草在個體生長發育、生理生態以及種群生物學等方面進行了較全面的系統研究。

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。

The authors analyzes the function change of urban in its evolvement and the eco - environmental problems caused by this change. based on this analysis and the method of systems ecology founded by odum h t, the authors discuss the aim and the principle of urban eco - environment planning under the sustainable development ; put forward the general view of urban eco - environment planning in which the kernel is the adjusting of industry structure, land - use structure and spatial pattern ; construct the dynamic simulating model of eco - environment planning of guangzhou city, china which organizes the models of economy, population, the equilibrium of carbon and oxygen, and other models of atmospheric diffusion, rainwater sedimentation, vegetation absorbing to so

在剖析城市演化歷程中的功能變遷與導引的生態環境滯脹類型和危害的基礎上，著重利用系統生態學的原理和方法，探討了可持續發展要求下的城市生態環境規劃的目標原理和研究的內容方法及過程提出了以產業結構土地利用結構和空間格局的調整為核心制定城市生態環境規劃的總體思路創造性地融大氣擴散雨水沉降和植被吸納so

The department of ecology and biodiversity of the university of hong kong has been appointed to carry out the 2001 - 02 programme. the main aspects of monitoring include sampling of marine benthic animals, analysing bird population data, habitat extent and conditions. cross reference will be made to environmental data such as mudflat sedimentation, water quality, sediment quality and land use changes

香港大學的生態學及生物多樣化學系，獲委派進行二零零一至零二年度的計劃，主要監測范圍包括抽樣調查海洋底棲動物、分析鳥類種群數據、生境分佈及狀況；亦會參考相關的環境數據，例如泥灘的沉積情況、水質、沉積物的質素、土地用途改變等，作為對照。

This paper briefly reviews the possible effects of climate change on avian biology and ecology all over the world, with emphasis on new findings from several long - term studies in europe and north america, which provide unique opportunities to investigate how long - term changes in climate affect birds at both individual and population levels

根據全球范圍內氣候變化對鳥類影響的研究資料，尤其是北美和歐洲的一些長期研究項目的成果，綜述了氣候變化對鳥類分佈范圍、物候、繁殖和種群動態變化等方面的可能影響。

Based on extensive field observation and population sampling in 71 populations of 20 provinces, this dissertation investigates morphology, ecology, cytology, cytogeography and its sequences of this complex. the results show that a. ageratoides polyploid complex might be originated in northeastern china, from which it migrated along three different routes

本研究基於對我國20個省、市、自治區43個地點71個三脈紫菀復合體居群的野外觀察和採集，從形態學、生態學、細胞學、細胞地理學和分子生物學等各方面，對三脈紫菀多倍體復合體進行了綜合性研究。

Logistic model is one of core theory in population ecology. it almost the only model to describle population growth for about one hundred

Logistic模型是種群生態學的核心理論之一。 100多年來，它幾乎是描述種群s型增長的唯一數學模型。

At present, because of the increasing of population and livestock in pasture areas, the grassland area appeared serious degeneration and desertification. many grassland areas have not entered a self - sustaining, non - sustainable development phase that is to say the environment is non - sustainable and so does the ecology system and social economics

目前，由於草原牧區人口與牲畜的增多，導致草原退化、沙化嚴重，許多地區的草原已進入一個不能自我維持、不可持續發展的階段? ?環境的不可持續性、生態系統的不可持續性以及社會經濟的不可持續性。

Studies on population ecology showed that d. versipellis is able to grow on the hillsides of subtropical broadleaf or acicularleaf secondary forest where soil is fertile and the content of n, p, k is high and the ph is 5. 49 - 6. 59

種群生態研究表明八角蓮適宜生長的土壤為中性偏酸（ ph5 . 49 6 . 59 ） 、有機質含量為7 . 34 33 . 33和n 、 p 、 k養分含量高的黃棕壤；其生長環境的植被為亞熱帶針葉混交林，伴生植物多為當地優勢種。

Study on population ecology of small mammal in an abandoned landfill using mark and recapture method

用標志重捕法研究廢棄地小型獸類群落物種組成及種群生態學特徵

Of the species, . characters of ecology, reproductive biology, genetic diversity, population genetic structure, endangering mechanisms, and sampling strategy have been studied in view of conservation biology. the results may be summarized as follows : by field investigation, we found that the localities recorded for four specimens of d. versipellis and d. pleiantha had disappeared, and most of the present populations are located in protected subforests. the distributional range of d. versipellis has also been reduced greatly, evidently, the number of present populations has decreased, the resources are reduced sharply, and the species are clearly endangered

從保育生物學的角度，對八角蓮種群生態學和生物學特性、遺傳多樣性水平和遺傳結構、瀕危機制及保育取樣策略進行了研究，結果如下：通過野外調查發現，原標本記載的一些八角蓮和六角蓮種群已難以找到，該類群目前多分佈於自然保護區外圍次生林地帶，分佈范圍明顯縮小，現存群體的規模也明顯減少，資源量貧乏，物種處于瀕危狀況。

The research can offer some important references to the population ecology of endangerous plant, too. based on the dates of two different circumstances, two standard life tables of form. taais chinensis var. mcarei population are founded by mathematical technique according to premising with " space deducing time ", and the curves of survival rate, mortality rate and killing power were drew. the results showed both of the survival curves of population appeared to be a type of deevey - iii and the high mortality of seeding is one of the important reasons which caused taxus chinensis var. mairei to be endangered, which badly limited the enlargement of form. taxus chinensis var. mcarei population

由於南方紅豆杉無解析木，因而以「空間推時間」 、 「橫向導縱向」方法，將林林依胸徑大小分級，以立木級結構代表年齡結構，採用分段勻滑技術，對兩個不同生境的南方紅豆杉種群編制特定時間生命表，繪制存活曲線，結果表明不同生境的南方紅豆杉種群的存活曲線均趨于deevey -型，兩地差異較小，幼苗死亡率極高，不同生境的幼苗死亡率均達到96以上。

An analysis of population distribution took place on all of the 11 sites, and population size and density of 8 sites out of these 11 sites were estimated by direct counting method, in order to get basic information of the population ecology of cathaica cavimargo

進行種群分佈分析時評估了石灰巖、純灌木、石灰石灌木、石灰石草地、花崗石灌木、花崗巖、純草地和花崗石草地8個樣地種群大小和密度，以便獲得cathaicacavimargo種群生態基本數據。

Review on population, population ecology and population behavior

模型和種群動力學

Thirdly, this chapter puts forwards the trend of thought of structuring the agile production - operation, organizational struture through process agility, staff agility, and value chain agility. chapter 6 inter - firm structure with obscure boundary this chapter first analyzes how people comprehend the inter - firm relation. secondly, it explains the origin of inter - firm relation from the perspectives of the theories of inter - firm coordination, economics of transaction costs, resource dependence and population ecology of organizations

重點提出與分析了敏捷生產運作組織結構的構建思路:即在具備了敏捷生產運作組織結構的外部基礎設施及技術平臺的同時，通過業務流程的「敏捷化」 、人員的「敏捷化」 、價值鏈的「敏捷化」 ，實現生產運作組織結構的「敏捷化」 。

Trends and advances in researches on plant population ecology

植物種群生態研究進展

Document summary about the research of population ecology theory

種群生態理論研究文獻綜述