The study results showed that the spore density,species richness,and diversity index of arbuscular mycorrhizal fungi in a grassland soil had a seasonal variation and reached the maximum in winter,which were not synchronous with the rhythm of plant community.
以草坪为研究对象,研究草坪土壤中丛枝菌根真菌种群的孢子组成、孢子密度、物种丰富度、多样性及其季相变化规律。
Examining seasonal variations of Leymus chinensis photosynthetic rates in the Hulunbeier Grassland:a case study of a grassland meteorological experiment station in Ewenke;
呼伦贝尔草原羊草(Leymus chinensis)光合速率的季节变化——以鄂温克旗牧业气象试验站为例
It is found from the drifter data that the North Equatorial Current(NEC),Mindanao Current(MC),and North Equatorial Counter Current(NECC) have strong seasonal variations.
利用漂流浮标、ADCP和Argo等观测资料,对太平洋低纬度西边界流和涡旋结构的季节变化进行了分析。
Comparative study on seasonal variations in rotifers of the waters with different trophic states in Lake Taihu;
太湖不同富营养水平湖区轮虫季节变化的比较
Accumulation and seasonal variation of heavy metals in Phragmites australis and Scirpus mariqueter;
芦苇与海三棱 草中重金属的累积及季节变化
Concentration level and seasonal variation of organic carbon and elemental carbon in Beijing aerosols;
北京大气颗粒物中有机碳和元素碳的浓度水平和季节变化
The factors regulating the seasonal variability of p(CO_2) in the two reservoirs have been analyzed.
针对贵州喀斯特地区富营养水库(红枫湖、百花湖)表层水中的CO2分压p(CO2)进行为期1 a的监测,分析了影响两湖p(CO2)季节变化的因素并阐明了两湖p(CO2)季节变化的机理。
Based on static chamber techniques, measurements of NOx emission from a wheat-rice rotation ecosystem in southeast China showed that NOx emission had an obvious seasonal variability.
本文利用静态暗箱法技术，通过对华东稻麦轮作生态系统进行的NO_x(NO_x=NO+NO_2)排放观测研究指出华东稻麦轮作田的NO_x排放具有明显的季节变化规律，大约85％的NO排放发生在小麦生长季，仅有大约15％的NO排放发生在水稻生长季。
Distribution and seasonal changes of polycyclic aromatic hydrocarbons (PAHs) in surface water from Humen tidal channel;
珠江虎门潮汐水道水体中多环芳烃的分布及季节变化
Seasonal Changes of Substances Related with Stress Resistancein 3 Grass Species in Hunshandak Sandland;
浑善达克沙地3种禾本科牧草抗逆性物质季节变化动态研究
Studies on the seasonal changes of camptothecin content in the leaves of Camptotheca acuminata;
喜树叶片中喜树碱含量的季节变化研究
A Study of Seasonal Variation and Models of Directional Thermal Radiance over Row-planted Winter Wheat Canopy;
冬小麦冠层方向性热辐射的季相变化和模型研究
Analysis on the Phase Transformation of Precipitation During a Strong Cold Wave Happened in Spring
一次春季强寒潮的降水相态变化分析
To go from one phase to another, as the moon or the seasons.
转相从一个阶段变到另一阶段，如月相变化或季节变化
Changes of Hormone and Cloning of Senescence-related Gene in Short Season Cotton
短季棉衰老的激素变化及衰老相关基因的克隆
Seasonal Changes in Physiological Parameters Related to Adaptation to Hypoxia in Plateau Zokors;
高原鼢鼠对低氧适应相关生理指标的季节变化
Empirical Investigation on the Influence of Seasonal Variation on the Correlated Immune Material of Lung
季节变化对肺相关免疫物质影响的实验研究
Variations of whole-tree transpiration at different diameter-classes in Acacia mangium during dry and wet seasons
不同径级马占相思(Acacia mangium)整树蒸腾的湿、干季变化
linearly changing seasonal variation
线性变化型季节变动
Interaction between Quarterary-ammonium Gemini Surfactant and SDS in Aqueous Solution--Phase Behavior, Micellization and Rheological Properties;
季铵盐Gemini表面活性剂与SDS的相互作用——相行为、胶团化及流变特性
The Relationship between the Boreal Spring Southern Hemisphere Annular Mode and the Summer Precipitation in the Yangtze River Valley and the Associated Patterns of Global SST Variability
春季南半球环状模与长江流域夏季降水的关系及相关联的全球海温变化模态
Traveling is often seasonal. It will be in season soon.
旅游随季节变化，很快又要到旺季了。
Similarly, in equatorial and polar marine regions, ocean temperatures change very little with season.
同样，在赤道和极地海区，海水温度的季节变化也相当
Study on the Carbon Aerosol Characteristic and the Analysis of Influence Factor in Spring in Xi'an;
西安市春季大气碳气溶胶变化特征及其影响因素的相关分析
Interannual and Interdecadal Varieties of Summer Rain-belt s Propagation and Corresponding Characters of Height and Sea Temperature;
中国夏季雨带推进过程的年际年代际变化及其相关海气背景分析
Change of relative extreme high temperature events and climate risk in rice growing period in China from 1981 to 2000
1981-2000年水稻生长季相对极端高温事件及其气候风险的变化
Diurnal Variations of Air Temperature and Relative Humidity in the Surface Layer on Clear Day in Summer in Marsh
夏季晴天沼泽湿地贴地气层气温和相对湿度日变化特征
Coherence between Seasonal Variation and Methane Sulfonic Acid Particles in Marine Atmosphere of Zhuhai
珠海海洋大气中甲磺酸粒子与季节变化的相关性
Analysis on Correlation and Concentration Variation of Atmospheric PAN and PPN in Beijing
2006年夏季北京大气中PAN与PPN浓度变化和相关性分析