群空間 的英文怎麼說
中文拼音 [qúnkōngjiān]
群空間
英文
group space-
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 competition among those species like s. tsinyunensis, dryopteris erythrosora and veronicastrum stenostachyum etc., is intense in the communities, which may be one of the reasons why s. tsinyunensis is going to be endangered and with a very restricted distribution. the distribution patterns of the seven populations of s. tsinyunensis are clumped among the eight populations we studied, except population v of random distribution. the spatial pattern of 6 populations of s. tsinyunensis have high consistency with the negative binominal distribution, while another 2 populations, i. e., i and iii are poisson distributions
6 ）縉雲黃芩各種群空間分佈格局基本呈聚集分佈，其中7個種群的分佈格局類型是聚集分佈，其聚集強度較高，另有一個種群為隨機分佈；其種群的離散分佈擬合結果也嚴格符合一定的數學模式，其中負二項分佈、 poisson分佈分別是該物種種群空間分佈的理論分佈模式，其中6個種群擬合出的結果是負二項分佈，種群i和種群m擬合出的結果是poisson分佈。Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切The key to accelerate cities colony ' s development is to reinforce the city layout to direct the development of cities colony
以城市群總體規劃為基礎，從空間結構調整和強化空間聯系兩個層面加強城市群管理，加速城市群空間整合和協調發展。Base on the data collected from the field investigations, we analyzed the static life table, age structure, spatial distribution patterns of the populations of e. chloranthoides. we further studied the intraspecific competitions within the species and the interspecific competitions between the species and other concomitant species in the communities. with the helps of the logistic equation, leslie ' s matrix and the average moving law method we simulated and estimated the population dynamics of this endangered plant species
本研究以縉雲衛矛為研究對象，通過對三個種群的野外調查，研究和分析了縉雲衛矛的種群年齡結構、種群空間分佈格局及種內和種間的競爭關系，並利用logistic方程、 leslie矩陣及移動平均法模擬和預測了三個種群的數量和結構動態，在此基礎上分析了造成縉雲衛矛瀕危的原因，提出了相應的保護措施，旨在為縉雲衛矛的保護提供理論依據。Spatial distribution pattern of tree species populations and interspecific association in fraxinus mandshurica and juglans mandshurica forest community
水胡林群落樹木種群空間分佈及種間關聯性Species diversity and arbor population distribution pattern of ulmus pumila l scattered grassland of horqin sand
科爾沁沙地榆樹疏林草地物種多樣性及喬木種群空間格局Characteristics of spatial distribution for the main populations of scarabaeoideal larvae in stipa grandis steppe
大針茅草原蠐螬群落主要種群空間分佈特徵研究The distribution pattern of pinus taiwanensis population in natural forestry community
屏南天然黃山松種群空間分佈格局Research on the species diversity and spatial pattern of pinus tawanensis population in wuyishan mountain
武夷山黃山松群落物種多樣性與種群空間格局的研究Spatial interactions between brown planthopper and white back planthopper in the rice fields
褐飛虱與白背飛虱自然種群空間關系3 the relationship between cluster and building group in shape. 4 > integration research of cluster space. 5 analysis in practice.,
依照文章順序分別從形成觀、形態觀、整合觀三個方面來研究簇群空間。Spatial pattern of cinnamomum burmanni seedling populations on karst hills of guilin
桂林巖溶石山陰香幼苗種群空間格局分析The second, open out the definition, the character, the element and the structure of the cis, and bring forward the model of csp ( the core - level determinants, the supplementary - level determinants, and the periphery - level determinants ), then, based on which, aiming at the model of csp, we explain that the basic pattern of the mode of cluster learning which is the dynamic mechanism of cis, and consider that the degree of the interact between the actors of clusters and the knowledge base are the two crucial dimensions in the research of cluster learning, go step farther that we put forward the four corresponding kinds of spatial forms clusters and the three - phrase evolution path, and so the integrated framework of cluster learning is built
在此基礎上，針對csp模型，從動態知識學習和靜態知識積累兩個角度解釋了集群學習模式（集群創新系統動態機制）的基本範式、機制模式，明確了集群成員之間知識互動的緊密度和集群靜態知識基礎的水平是考察集群學習的兩個維度，並由此進一步提出了對應的四種集群空間形態和三階段演進路徑，從而構建了集群學習的模式框架。This paper discusses the theories of spatial contacts and functional contacts, calculates and analyzes the economic contact intensity and urban flows intensity, researches on the course and mechanism about urban agglomerations spatial economic contacts, and also brings forward relevant theory summarizes and suggestions. besides preface and conclusions, this thesis consists of four parts
本文從城市之間的空間聯系和功能聯系的理論探討出發，通過對經濟聯系強度和城市流強度的定量計算與分析，研究省域和城市群空間經濟聯系形成發展過程及其演化機制，並提出了相應的理論總結與發展建議。Study cluster from development shape and integration three angle in sequence
形成觀：古鎮簇群空間的發展與起源。Integration angle : in the end of paper, we carry a systematic analysis on protect and renew of the cluster space
整合觀：對簇群空間的演進與整合策略思考，重點在整體策略的建構。Shape angle : in the second and third chapter, concentrating the cluster space composes. form two different angel - " street and lane " and " building group ", we main base on the space shape and emphases the physical space
並在形態研究中，重點將簇群空間分為兩個部分來探討，即街巷空間和建築組群，分別從不同角度來剖析古鎮簇群形態。Development angle : in the second chapter, analysis the developed source of cluster space with tradition town. approaches how the cluster space develops with the town develop. analysis the develop power inside the physical part contacting with other influencing facts from local cultvu society religion
探討了聚居形態在發展中簇群空間的如何形成，並從歷史、文化傳統的角度，分析了簇群空間發展的內在動力與其它因素間的關系和作用，並結合人文意識的作用，分析了簇群空間發展中與文化、地域、宗教、社會等方面的關系。Species diversity dominance niche community ordination and classificationx population spatial pattern in desert - oasis ecotone in fukang, along with their relation to soil factors, are analyzed by quantitative vegetation analyze methods. the characteristic x dynamic of landscape ecological pattern and their influence factors are also analyzed by the partition of landscape transect. oasis stability is primary explored by the successive observation of soil water and salt in sangonghe basin in fukang
採用植被數量分析方法，分析了荒漠綠洲過渡帶植物群落的物種多樣性、優勢種生態位、群落排序與分類、種群空間格局，以及它們與土壤因子之間的關系；通過劃分景觀樣帶，分析了阜康土地利用景觀生態格局的特徵、動態及其影響因子；通過阜康三工河流域土壤水鹽的動態觀測，對于綠洲穩定性進行了初步探索。分享友人