| 1. | Test for soil compaction principle by impaction and vibration 静碾复合压实滚轮与土壤系统的动力学模型 |
| 2. | Design of automatic soil identification and classification system from remote sensing data based on soil taxonomy 基于土壤系统分类的土壤遥感自动识别分类系统的设计 |
| 3. | 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 |
| 4. | The main results are shown as follows : 1 . establishment and application of the database system of soil taxonomy for hubei province 1湖北省土壤系统分类数据库系统的建立与应用1 |
| 5. | Analysis of the area proportions and standard deviations of a certain gscc soil classified to cst showed that the lower the unit in referencing , the easier the referencing would be 分析高山土参比后分属的系统分类不同类型土壤面积比例及其标准偏差,表明土壤参比的单元级别越低,越易于参比和把握,进一步开展土壤系统分类的基层分类研究显得十分必要。 |
| 6. | 1 . 1 the database system , developed wiht the softwares : the foxpro 2 . 6 for windows and the visual basic 3 . 0 , fully utilizes the system resources of windows and the powerful functions of the relation db of foxpro 1湖北省土壤系统分类数据库系统利用foxpro2 . 6forwindows及visualbasic3 . 0软件开发,充分利用了windows的系统资源及foxpro强大的关系数据库功能。 |
| 7. | 4 . the result of soil taxonomy consist fundamentally with that of the genetic classification and the boundaries roughly identify with each other , indicating the taxonomic classification is based on the genesis theory and the two classification system are touched tightly 土壤系统分类与地理发生分类的分类结果是基本吻合的,分布界线也大体一致,说明系统分类是以土壤发生学理论为基础的,两种分类体系有密切联系。 |
| 8. | So not only is user ' s surface menu - like and friendly , but also the operations are easy . moreover the powerful functions of relation db helps to build a complete data inquery with which user can do individual , ambiguous or multinomical inquery 因此菜单式用户界面友好,操作简便;而且强大的关系数据库功能提供了一个完备的数据查询手段,可实现单项、模糊及多项查询,为土壤系统分类数据库的开发应用打下了基础。 |
| 9. | 1 . 4 based on the attribute db , the soil classification graphic db is set up by using arc / info cis . the soil order , suborder sketchs and basic classification unit ( series ) sample maps , make the distribution of soil in hubei province clear at a glance 4在属性数据库的基础上,利用arc infogis建立了湖北省土壤分类图形数据库(空间数据库) ,运用计算机编制和输出了全省土壤系统分类土纲、亚纲概图和基层分类单元(土系)样块图,使全省土壤分布状况一目了然。 |
| 10. | Abstract : on the basis of the atmosphere - crop - soil systems , the synthetical production potentiality model of the grain crops is established in guizhou , the concept of crop increase production potentiality index is posed , the prospects of the synthetical increase production potentialities of crop uder the present and future circumstances are analysed 文摘:从大气作物土壤系统出发,建立了贵州省主要粮食作物综合生产潜力模式,提出了作物增产潜力指数的概念,分析了在现实条件下和未来条件下作物综合增产潜力的前景。 |