生境

在原生境中，木槿能长到25英尺高。

In its natural habitat , the hibiscus will grow up to 25ft

芦苇和互花米草生境土壤的N、P养分元素含量随着土壤深度的增加而减少。

The concentration of N and P in the habitat soil decreased with the increase of the soil depth .

群落生境对生物群落有作用。

The biotope acts on the biocoenosis .

灰色关联分析结果显示，土壤有机质含量和土壤pH值分别与生境中土壤动物的个体数和类群数的关联度较大。

Grey correlation analysis revealed that soil organic matter and soil pH are significant factors which respectively affected soil fauna individual number and group number .

随机小生境Pareto遗传算法多目标优化

Random niched Pareto genetic algorithm for multi-objective optimization

DTM在高黎贡山羚牛潜在生境研究中的应用

Application of Digital Terrain Model in the Potential Habitat of Takin in the Gaoligong Mountain

原始森林土壤NH4~+/NO3~-生境特征与某些针叶树种的适应性

Soil NH_4 ~ + / NO_3 ~ - nitrogen characteristics in primary forests and the adaptability of some coniferous species

基于云模型的小生境MAX-MIN相遇蚁群算法

MAX-MIN meeting ant colony algorithm based on cloud model theory and niche ideology

多目标演化算法的研究热点集中在Pareto最优概念的种群个体的比较与排序、适应值赋值与小生境技术等方面。

The researches on multi-objective evolutionary algorithms focus mainly on the Pareto-based comparison and ordering of individuals , fitness assignment and niche techniques , etc.

不同生境下瘤胃菌丛菌体密度与VFA的关系

Interrelationship between Bacteria Density and VFA Yield When the Leaving Ruminal Microbial Flora in Changing Eco-Environment

湿地一词译自英文Wetland，本意是潮湿的土地，指一种特殊的土地资源和生境。

The Chinese word " Shidi " comes from the English word " Wetland " . It means the wet lands , refers to a kind of special land resource and environment of living beings .

栖息地的地理特征中，海拔1000m左右、坡度30°～40°的生境对红腹锦鸡最为适宜。

The habitat of the elevation 1000 m and slope 30 °~ 40 ° isthe most suitable to Golden pheasant .

2，在果实生长发育过程中，同一生境的脐橙和夏橙果实，除幼果期的脐橙和夏橙果实可食部分的Cx活性都很低，几乎检测不到以外。

During the course of fruit developing and maturating , Cx activity of sweet orange pulp were low at young stage .

3种生境中匍匐茎节间长度分布偏斜度（skewness）的大小分别为：林缘旷地>林缘>林下。

The skewness in distribution of stolon internode length was in the order of open land of forest edge > forest edge > forest understory ;

通过两个小生境相互作用机制，使GA群体搜索的特点得到很好的利用，保证群体的多样性，加速搜索速度。

Finally , in order to make good use of the population search characteristics of GA , ensure the diversity of population , and accelerate the search speed , OGA adopted the interaction mechanism between two NICHEs .

为强化系统的脱氮能力，提出在沼液中添加未经消化的养殖场原粪污水，可维持系统合适的pH值的生境条件，从而达到提高系统硝化效果的目的。

To strengthen the system of the capacity of nitrogen , adding undigested raw dairy farming wastewater to the slurry can maintain the suitable habitat conditions of proper pH , so as to achieve the purpose of improving the removal of nitrification in the system .

采用无线电跟踪技术和全球定位系统（CPS）对大兴安岭阿巴河流域紫貂冬季的生境选择进行了研究。

The habitat selection of sables ( Martes zibellina ) in winter was studied by radio-tracking and GPS ( Global Positing System ) in Daxing ' anling Mountains , China .

介绍了微量遗传算法（MGA），并将之与小生境（Niche）技术及洗牌（Shuffle）技术相结合，优化选择遗传算法（GA）的初始群体，明显地减少了内存需求及运算工作量。

Micro genetic algorithm ( MGA ) is presented in this paper . Combining with niche and shuffle technique , it can optimize the GA initial population and efficiently reduce the memory requirement .

侵入新的生境后，Bambusicola和Gallus的共同祖先迅速从地Francolinus分歧出来；

After the invasion into new environment , the common ancestors of Bambusicola and Gallus rapidly diverged from Francolinus ;

沿CCA排序图的第一轴从左至右将28种植被类型划分为4个类群，揭示出重要的环境梯度和每一个类群具有其特定的生境特点。

Along the first axis of CCA ordination chart , all of the vegetation were divided to four taxas , revealing important environmental gradients and each one has its taxa-specific habitat characteristics .

通过比较不同生境蝗虫群落的相似性，并经聚类和PCA分析，可将松花湖库区5种生境划分为三大类型，分别为远湖区生境，包括采伐迹地和农田；

By comparing the similarity of grasshoppers ' community in different habitat regions and clustering and PCA analyzing , the different habitat regions could be divided into 3 types : far off lake region including cutting blank and farmland region ;

植物种原始生境的水分状况用Ellenberg水分序数定量。

Moisture status of the species ' habitats was quantified as Ellenberg moisture number .

对标准遗传算法（SGA）进行了分析、研究，并在SGA的基础上进行了改进，形成了自适应小生境遗传算法（ANGA）。

The author analysed and studied the Standard Genetic Algorithms ( GA ), improved the algorithm based on SGA named Adaptive Niche Genetic Algorithms ( ANGA ) .

信仰空间接收群体空间中的精英粒子，并采用了交叉操作和小生境Pareto竞争策略保证所产生的最优解集能够均匀地分布在Pareto前沿。

The belief space accepts the elitist particles from the population space . A crossover operation and niche Pareto competition strategy are further executed to ensure that the optimal set can be distributed uniformly on the Pareto frontier .

CCA分析显示影响这5种群落物种组成的主要生境因子有土壤含水率、土壤总氮、土壤总磷、土壤C：N、土壤坚实度。

CCA analysis showed that the effect of community species composition of the five main habitat factors are soil moisture content , soil total nitrogen , total phosphorus , soil C : N , soil compactibility .

利用SPSS（11.0）软件对实验数据进行了统计、分析和比较，研究了两个样地及灌丛样地两种生境各种土壤养分的平均含量、空间异质性和相关关系。

Have been done statistical work , analyzed and compared these experimental data using the SPSS ( 11.0 ), studied the mean concentration 、 spacial heterogeneity and correlation relation of each soil nutrient of the two studied sites and two living surroundings of shrubland .

基于小生境技术，根据Pareto最优性理论，在MATLAB中编制多目标遗传算法优化程序，成功地实现了结构最优化设计，获得了高频轻质的结构。

Based on the technique of niche , with the optimum theory of Pareto , and by the software of MATLAB , the multi-objective optimization program of Genetic Algorithms was developed to search for the optimum design , which was low in weight and high in frequencies .

调查到的这些小生境的长度在31～340cm，宽度在10～261cm。

The ranges of microhabitats is 31 ~ 340cm in length and 10 ~ 261cm in width .

通过比较不同干扰样地中各生境因子的差异和变化，进而对不同干扰背景下各优势种幼苗幼树的Pn-PFD曲线、光合作用速率日进程、蒸腾作用速率日进程等生理生态指标进行比较。

Through comparing the differences and changes of the niche factors in different disturbed plots , then comparing the ecophysiological indexes ( Pn-PFD curve , daily photosynthesis rates , daily transpiration rates etc. )

海拔单因素评价结果表明：海拔高度在500-700m的区域为驼鹿的优良生境，该区域的面积为105.6km~2，占研究区总面积的67.86%，是驼鹿活动最频繁的区域；

The results revealed that : Altitude One-factor assessing results : Excellent and Good & the altitude was between 500-700m with area of 105.6 km ~ 2 , which in the study area , and moose frequently appeared in it ;