| 1. | Seasonal dynamics and structures of insect communities in wheat fields 麦田昆虫群落的结构与时序动态 |
| 2. | Seasonal dynamics of structure and diversity of insect communities in wheat fields 麦田昆虫群落结构及多样性的季节动态 |
| 3. | Seasonal dynamics of structure and diversity of insect communities in the poplar nursery 杨树苗圃昆虫群落结构及多样性季节动态 |
| 4. | Distribution and seasonal dynamics of sulfur in the plant - soil system in the calamagrostis angustifolia wetland in the sanjiang plain 土壤系统中硫素分布及季节变化动态 |
| 5. | Seasonal dynamic variations in nitrate nitrogen in marsh soils from phragmites wetlands in xianghai national natural reserve 向海芦苇沼泽湿地土壤硝态氮含量的季节动态变化 |
| 6. | Seasonal dynamics of nitrogen , phosphorus and biomass of phragmites commuis at mengqingyuan garden artificial wetland in shanghai 梦清园人工湿地芦苇的氮磷和生物量动态及其适宜收割期的研究 |
| 7. | Concentrations of exchangeable cations of soil and their seasonal dynamics in three representative forests of dinghushan biosphere reserve 鼎湖山主要森林类型土壤交换性阳离子含量及其季节动态特征 |
| 8. | The seasonal dynamics of vertical distribution of the dominant guilds and their relationship in arthropod community in intercropped and managed jujube yard ecosystems 枣园节肢动物群落优势功能集团的空间时序动态及其相关性 |
| 9. | To understand the characteristics of carbohydrate storage of perennial grasses , we analyzed the content and seasonal dynamics of carbohydrate components in below ground organs of l . chinensis and s . grandis using high performance liquid chromatography 为了研究草原植物碳水化合物贮藏特性,采用高效液相色谱技术对羊草和大针茅的贮藏性碳水化合物的种类组成及季节变化进行了测定。 |
| 10. | The work on seasonal dynamics of litter input and decomposition and the relationship between them and environmental factors was studied through the method of harvest and weight loss . soil respiration rate was measured by alkali - absorption method and the contribution from soil microorganism respiration and from root respiration was determined through trendline method of linear regression between soil respiration rate and belowground biomass . mathematical models were established between the seasonal dynamics of main components of soil total respiration including soil respiration , root respiration , soil microorganism respiration , litter respiration and environmental factors 应用收获法和重量损失法对枯枝落叶输入与分解的季节动态及其与环境因子的关系进行了研究;应用静态气室法测定了土壤总呼吸和凋落物呼吸,应用土壤呼吸量与地下生物量线性回归趋势线法测定了土壤微生物呼吸及根呼吸的贡献量,运用相关分析法建立了土壤总呼吸、根呼吸、土壤微生物呼吸及其凋落物呼吸季节动态与环境因子之间的数学模型;应用灰色分析比较了两群落土壤呼吸季节动态产生差异的原因;应用干重换算法对土壤微生物能量积累量的季节动态进行了测定,建立了土壤微生物能量积累量与环境因子的数学模型;应用系统分析方法,利用分室模型,对两群落枯枝落叶与微生物之间的能量流动进行了定量测定和稳定性分析。 |