1)Species abundance distribution物种多度分布
1.Kernel density estimation of species abundance distribution in rare and endangered Castanopsis kawakamii natural forest.;格氏栲天然林物种多度分布的核估计研究
2.Study on fitting the model of species abundance distribution by the power-exponent equation;幂指数方程拟合物种多度分布模型的研究
3.Dynamics and modeling of species abundance distribution during natural restoration of degraded hilly grassland in south China华南退化草坡自然恢复中物种多度分布的动态与模拟
英文短句/例句
1.Study on species abundance distribution of Orchidaceae in Fujian Province福建兰科植物不同区域物种多度分布研究
2.Study on the Distribution Pattern of Arboreal Species Abundance of Mountainous Rain Forest in Dawei Mountains,Yunnan,China大围山山地雨林乔木层物种多度分布格局研究
3.Kernel density estimation of species abundance distribution in rare and endangered Castanopsis kawakamii natural forest.格氏栲天然林物种多度分布的核估计研究
4.Weibull model of species abundance distribution of Huodendron biaristatum community in Damingshan Nature Reserve大明山云贵山茉莉群落物种多度分布的Weibull模型
5.Dynamics and modeling of species abundance distribution during natural restoration of degraded hilly grassland in south China华南退化草坡自然恢复中物种多度分布的动态与模拟
6.(4) The result of the study of species abundance distribution of woody plant is the same as that of species diversity indices.物种—多度分布分析与物种多样性分析结果是一致的。
7.Classification,species diversity,and species distribution gradient of permafrost wetland plant communities in Great Xing'an Mountains valleys of Northeast China大兴安岭沟谷冻土湿地植物群落分类、物种多样性和物种分布梯度
8.Species abundance distribution pattern of forest communities on Loess Plateau黄土高原森林群落物种多度的分布格局
9.Species composition, abundance distribution and diversity of Planktonic Ostracoda in the Beibu Gulf北部湾海域浮游介形类物种组成、丰度分布及多样性
10.Distributing Structure of Biodiversity of Edible Mountain Wild Herbs Along Altitude Gradient in Baotianman Nature Reserve宝天曼自然保护区山野菜物种多样性的海拔梯度分布格局
11.Effects of sampling scale on latitudinal patterns of species diversity in seed plants in northwestern Yunnan,China取样尺度效应对滇西北地区种子植物物种多样性纬度分布格局的影响
12.STUDY ON BIODIVERSITY OF FOREST COMMUNITY IN NANYUE OF HUNAN PROVINCE (Ⅲ)--MODEL ON DISTRIBUTION PATTERN OF PLANT SPECIES RELATIVE ABUNDANCE IN GUANGJI TEMPLE南岳森林群落生物多样性研究(Ⅲ)广济寺森林群落植物物种相对多度分布格局
13.An Algorithm and Hardware Implementation of Multiscale Dot Distribution一种多尺度墨点分布算法及硬件实现
14.Mammal Diversity and Its Distribution Patterns in Anhui Province;安徽省兽类物种多样性及其分布规律
15.Objective To investigate the species abundance distribution of ectoparasitic gamasid mites on Rattus flavipectus and illustrate the relationship between species and their corresponding individuals in the gamasid mite community.目的研究黄胸鼠体表寄生革螨的种多度分布,阐明革螨群落内物种数与个体数之间的关系。
16.Study of Original Forest Communities in Nanyue of Hunan Province:Ⅴ.Species Diversity and Distribution Pattern of Species Relative Abundance湖南省南岳原生性森林群落的研究——Ⅴ.物种多样性与相对多度分布格局
17.Species Diversity and Arbor Population Distribution Pattern of Fagus longipetiolata Community in Leigong Mountain水青冈群落物种多样性及乔木种群分布格局
18.Study on Concentration Depth Distribution of Ions Implanted into Plant Seeds with Low Energy;低能离子注入植物种子中浓度—深度分布的研究
相关短句/例句
species-abundance distribution种-多度分布
3)Species abundance distribution model物种多度分布模型
4)distribution pattern of plant species relative abundance物种相对多度分布格局
5)Speciesrelativeabundancedistribution物种相对多度分布
1.SpeciesrelativeabundancedistributioninTsoongiodendron odorum communityinWanmulin NatureReserve,FujianProvince,was studiedby usingpatternsof geometricseriesdistribution,log seriesdistribution,lognormaldistribution,brokenstickmodelandWeibulldistributionto evaluatethe simulationof suchmethods.应用群落物种相对多度分布的几何级数分布模型、对数级数分布模型、对数正态分布模型、分割线段模型和Weibull模型,对观光木群落物种相对多度分布进行了对比研究。
6)species distribution物种分布
1.Application and comparison of generalized models and classification and regression tree in simulating tree species distribution;广义模型及分类回归树在物种分布模拟中的应用与比较
2.The stability constants and species distributions of complexes of two lanthanide ions,Eu(Ⅲ) and Tb(Ⅲ),with a macrocyclic ligand,3,6,9,17,20,23-hexaazo-29,30-dihydroxy-13,27-dimethyl-tricylco-[23,3,1,1~(11,15)]triaconta-1(28),11,13,15(30),25,26-hexane(BDBPH),in 1∶1 and 2∶1 system,were determined potentiometrically in 50% ethanol solution,at 35.用电位滴定法研究了24元大环多胺(BDBPH)-Eu(Ⅲ)和BDBPH-Tb(Ⅲ)溶液中络合物的稳定性和物种分布,分析了不同pH条件下各物种的存在形式及变化趋势。
3.The review focus on that the response of species distribution to global warming.综述了物种分布对全球变暖的响应。
延伸阅读
多项分布多项分布ultinoniial distribution g?polynomial distribution 多项分布〔nl过山目画闯血方山团阅或p01ynom血ldistribu-tion;uo月”IloMH幼‘Hoep舰Ilpe几e几ellHe] 随机变量X:，…，X*的联合分布，它对于任意一组满足条件n，+…十。*二。，。j=0，…，n，j=1，…，k的非负整数摊:，…，n*，由下列公式定义 p{Xl二n，，二，X*=n*}= n! n一!‘’‘n众!其中n，，.，二，，*(，，)o，艺药一l)为分布的参数.多项分布是一种多元离散分布—满足X:+…+X，=。的随机向量(X、，…，X*)的分布(这个分布实质上是(k一l)维的，因为它在k维E谓Ud空间中是退化的).多项分布是二项分布(binorrnial曲川bution)的自然推广，后者即同于k=2的情形.这个分布名称的来由是因为概率(*)是(P:十…+p*)”多项展开式的通项.多项分布出现在如下的概率概形中.每个随机变量X‘是互不相容事件A，(j=1，2，…，k)之一在重复独立试验中发生的次数.如果事件Aj在每次试验中的概率为巧(j=1，…，k)，那么概率(，)就等于在”次试验中事件A，，二，A*分别出现nl，…，n*次的概率.每个随机变量Xj有数学期望为。Pj且方差为”马(1一Pj)的二项分布. 随机向量(X，，…，X*)有数学期望(nP:，‘二，n，*)与协方差阵B=}lb，，11，其中 厂。P‘(l一P‘)，i=j， b:=之i，j=1，…，k 贬一np，p，，i笋j，(因为艺李二1。。=。，故矩阵B的秩为k一1).多项分布的特征函数是 f(tl，…，t*)=(P le’r’+…+P*e’“)”.当n~的l付，有正规化分量 X，一nP: 艺一不益亡责一的向量(Yl，…，Y七)的分布，趋于某一多元正态分布(nom笼幻曲颐bution)，而和 k 艺(l一夕‘)y) 口=I的分布(它在数理统计中常用来构造xZ检验(’chi-squared‘招t))趋于k一1自由度的x’分布(’chi-sq珑川刃‘distribution).
