Individuals vary in their relative fitness, and this variation is due partly to genetic differences among individuals and partly to environmental influences.
个体的相对适合度是有变化的，这种变化部分决定于个体的遗传区别，部分决定于环境的影响。
300 pieces of idioplasm resources of the Tibetan edible cultivation spring naked barley is identified for characteristic of shape, agronomic characters, rust-resisting property and grain thick protein, β-grape polymerization sugar and Vitamin E and so on from the Tibetan different region, which are analysed result in, for one thing, multiplicity of Tibetan spring naked barley is quite rich for the variation of the awn, leaves and the grain color, and multiple property are highest; Secondly, it has some fine hereditary characters of early maturation, big spike, many grains, many arrises and the strong anti-rust quality; Thirdly, genetic potential which is used possibly is enormous for characteristic of dense spike, exiguous spike, naked grain, the hook awn, short stem, the anti-rust and so on; Fourthly, thick protein, β-grape polymerization sugar and Vitamin E of grains are rather difference to environmental condition of the various areas.
从西藏各地征集的300余份食用栽培春青稞种质资源，从形态特征、农艺性状、抗锈性和籽粒粗蛋白、β-葡聚糖含量、维生素E等特征特性鉴定、评价。分析结果认为：（1）西藏春青稞多样性极为丰富，如芒、稃和籽粒颜色，具有变异最为丰富，多样性最高的特点；（2）具有早熟、大穗、多粒、棱型多，以及抗锈性强等和耐各种不良环境因素的优良遗传性状；（3）具有密穗、稀穗、裸粒、钩芒、矮生、抗锈等可利用基因潜力巨大等特色；（4）籽粒粗蛋白、β-葡聚糖、维生素E等成份因各地区环境条件不同差异较大。
In addition, the model can predict the degree of effects of topographic variation and other environmental factors such as river discharge and tide on the saline water intrusion.
结果表明，模式可以很好地模拟西江三角洲各水道日最大氯度及咸潮入侵范围，预报结果良好，同时该模式也能较好地预报磨刀门水道剧烈的地形变化及其它要素，如流量、潮汐对咸潮活动的影响程度。
Variation of vegetation is one of the important the secular vegetation change can reflect the variation indices for regional eco-environmental condition, and regulation of the eco-environment with time.
：植被状况的变化是反映区域性生态环境状况的重要指标之一，多年植被指数的变化则反映了植被生态环境随时间的变化规律。
Karst desertification is one of the most important environmental effect of territorial utilization and vegetational variation in karst region which including the labefaction of solid, vegetation and surface condition and the descend of productivity.
喀斯特石漠化是喀斯特地区土地利用与土地覆被变化的最重要环境效应之一，包括了土壤、植被、地表状况的恶化和生产力的下降。
OBJECTIVE To change the activity of SOD by variation of environmental factors, and examine their linear and non-linear correlation.
目的 通过改变环境因素的方式使超氧化物歧化酶的活性发生变化，并考察两者的相关性。
On the basis of the stem heat balance principle to measure the plant transpiration, with the instruments to collect meteorological data in greenhouse, we studied the variation rules of tomato sap flow under different environmental treatments through shading and obturating environment.
在茎热平街技术测定植株茎流的原理基础上，结合温室内气象数据采集仪器，通过对小温室做遮光、密闭处理，探讨番茄茎流的变化规律。
The different kinds and numbers of the protozoans in the process of sewage disposal reflect the variation of the environmental factors.
污水处理装置中原生动物的种类和数量可以反映环境因子的变化，因而具有污水处理效果的指示作用。
Raised abundance index and dificient index of the surface water environmental capaccty, and advanced a conception of seasonal variation coefficient, analysed the time-spaces different laws deeply for that in accondance with one, got on researching regionization for them firstly
提出水环境容量丰裕度指数、紧缺度指数及季节变差系数的概念，并以此为依据较深入分析了我国地表水环境容量时空分异规律，并率先开展了我国地表水环境容量区划研究
The system characteristic, exists in any system, also exists in the enterprise flow, but because the system characteristic is hides to the system internality, just like the enterprise the constitution, but the traditional enterprise flow management and the management method, usually all by the outward appearance angle of view and backwardness indicators, to evaluate the condition that enterprise target reach, achieves the goal by the flow operation achievement the means, often neglects the constitution flow intrinsic physique the characteristic, even not mention to in order to conforms to the industry to need and the environmental variation, the development enterprise manages some kind of system characteristic which should have.
系统的特性，存在於任何系统中，亦存在於企业流程中，但是由於系统特性是隐於系统的内在，犹如企业的体质，而传统的企业流程管理与经营方法，通常皆以外观的视角与落后指标，以评估企业目标达成的状况，以流程运作作为达成目标的手段，往往忽略构成流程内在体质的特性，更遑论为符合产业需要与环境变化，发展企业经营应该具备的某种系统特性。
The composition and distribution characteristics of saturated hydrocarbons in surface soil samples (0~25 cm) collected from different function districts of Tianjin were analyzed to reveal the sources and contamination levels of these compounds. In addition, the environmental significance, composition and distribution of normal alkanes, steranes and terpanes were also discussed. Furthermore, the geochemical indices and vertical variation of saturated hydrocarbons from different horizons (sub-horizon)(0~5 cm, 5~10 cm, 10~15 cm, 15~20 cm, and 20~25 cm) were compared.
为揭示天津地区不同环境功能区表层土壤中饱和烃污染特征及其来源，分析了该地区几个具代表性的环境功能区表层土(0~25cm)中饱和烃化合物的组成和分布特征，重点讨论了正构烷烃和甾、萜烷烃类化合物的组成、分布及环境意义，比较了不同层次(0~5cm，5~10cm，10~15cm，15~20cm，20~25cm)中这些化合物及相关的地球化学参数的变化规律。
Genetic variation was evaluated using phenotypic traits and RAPD markers in 8 natural populations of Betula luminifera from Fujian Province, China. The relationship between genetic variation and environmental factors was also examined.
采用表型性状测定结合RAPD标记，研究福建境内8个光皮桦野生种群的遗传变异，探讨遗传变异与环境因子间的相关性。
As one of the typical environmental disasters at south strand plain in Laizhou Bay, occurrence, development and variation of salt-water intrusion have close relationship with paleo-environmental evolution since Late Pleistocene, and with modern environmental change and human activities.
摘要通过对莱州湾南岸咸水入侵较严重地潍河下游地区晚更新世以来沉积特征及现代自然环境条件变化的分析，探讨了沉积相对咸水入侵产生及空间范围特征的环境机理。
Although the variation of chemical elements fall behind that of the environment, it is undoubtedly an index for environmental change.
尽管元素的时序变化滞后于自然环境的波动，但对研究长城站地区自然环境演变仍具有一定的指示意义。
There was also evidence from the half-siblings and adoptive relatives that this risk is substantially due to genetic factors vs environmental factors, which allows us to conclude that there is a common genetic variation between these 2 psychotic disorders, Dr.
也有明显的来自异姓兄妹和收养亲属的证据表明风险应该基本上是由于遗传因素而不是环境因素引起的。这使我们认为在这两种精神疾病间有共同的遗传变异。
The environmental effects of temperature variation and buoyancy variability due to barometric pressure fluctuation can be arithmetically tared out of the weighing values.
温度变化以及由于大气压变化引起的浮力变化的这些环境影响可以在称重数据中去除掉。
Are mainly existed in those populations that are remote from each other of different altitude but did not exit in those in same region of same altitude. According to Gst and Nm, we could define the wild Anemone's propagation system to Out-Cross mainly (with few self-cross). These populationss introduced of A. rivularis、A. demissa、A. demissa var. yunnanensis, A. trullifolia var. linearis, A rupestris showed a high level of genetic variation compared to original populations. The reason we thought is that gradual change and genetic drift are progressing after Anemone being introduced from many other areas when they are under environmental and artificial collection press. But these population introduced of A. vitifolia、A. hupehensis Lem、A. hupehensis var. japonica showed a low level of genetic variation compared to original populations, And the indicate these wild species has better genetic stability and stronger adaptability to the various environments.
结果表明，草玉梅、展毛银莲花、野棉花等野生银莲花的遗传变异主要存在于地理隔离较远的不同海拔的居群之间，在同一海拔同一地域的居群间，遗传分化不明显；根据8个种的Gst及Nm值，可以初步界定野生种的繁育系统，属于以异交为主的交配类型；除野棉花、打破碗花花、秋牡丹外，草玉梅、展毛银莲花、云南银莲花、条叶银莲花、湿地银莲花等几个种的引种居群与自然居群相比，出现了明显的遗传分化，可能的原因是，异地引种后，通过环境及人为造成的压力，产生了渐变或漂变，导致了遗传多样性的增加，而野棉花、打破碗花花、秋牡丹分化低，变异小，表明其遗传稳定性较好、适应不同生境的能力较强，在引种过程中，其优良特性不易丧失，有望用来做育种的亲本材料。
From the bigger environment point of view, in recent years, the environmental variation such as greenhouse effect, climatic change abnormally, ect.
从大环境来看，近年来，温室效应、气候异常变化等因素导致了该系统的平衡向有利于虫和菌的方向发生较大偏移，这是诱发蠹害大发生的重要因素。
The variation of grain weight under different cultural and environmental treatments was essentially determined by the hull size, and that of grain weight among different specific gravities was essentially determined by grain plumpness, that were found to be consistent in the four varieties.
在不同栽培和环境条件下，谷壳大小是造成处理间粒重差异的主要原因，不同类型品种表现一致；在籽粒不同比重条件下，谷粒充实度高低是造成不同比重等级谷粒千粒重差异的主要原因，不同类型品种表现一致。
Two terrestrial isopods, Atlantoscia floridana and Balloniscus glaber that differ in size, morphology and behaviour were studied with respect to the influence of the environmental variation on their reproduction and population structure.
对体型大小不同的两种陆生等足类动物进行形态特征和行为特征研究，探讨环境变化对其繁殖特征和种群结构的影响。