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土壤评价
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  evaluation of soil
    The quantitative evaluation of soil erosion in China began in 1950s. Some empirical models for soil erosion evaluation were developed in the early 1980s. And physically based models has been developed since the late 1980s.
    近代中国土壤流失定量评价始于本世纪50年代,80年代初开始土壤评价统计模型的研究开发,80年代末开展了土壤侵蚀预报物理模型的探索,同时还在较大区域(如黄图高原)乃至全国尺度上进行了土壤侵蚀和水土保持的评价研究。
短句来源
  “土壤评价”译为未确定词的双语例句
    Evaluation on Soil Fertilized with Different Phosphate by Radioisotope Trace Technology
    利用同位素技术对不同磷肥的土壤评价
短句来源
    (3)Sustainable utilization of water resources、groundwater bearing capacity、groundwater quality and soil quality in the project region was evaluated respectively through using fuzzy matter-element model、matter-element model based on AHP、LOG evaluation model for water quality and LOG evaluation model for soil, so the used degree to water and land resources was evaluated.
    (3)采用模糊物元模型、基于层次分析法的物元模型、LOG水质评价模型、LOG土壤评价模型,分别对项目区的水资源可持续利用、地下水承载力、地下水质量、土壤质量进行评价。 评价了项目区的水土资源利用程度。
短句来源
    It is applied that a new technique of falling dimension named projection pursuit to soil study, through using the improved real coding based accelerating genetic algorithm to optimize the projection direction. Thus, it can transfer multi dimension data into one dimension data, through searching for the optimum projection direction to realize the soil classification and its grade evaluation. The method can avoid the artificial disturb, and acquire preferably effect.
    将高维降维技术——投影寻踪分类模型 (PPC)应用到土壤学科领域 ,利用改进的加速遗传算法 (RAGA)优化投影方向 (土壤评价指标 ) ,将多维数据指标转换到低维子空间 ,通过寻求最优投影方向及投影函数值来实现对土壤的分类与等级评价 ,避免了主观赋权的人为干扰 ,取得了较好效果 ,为土壤质量变化与等级评价研究提供一条新思路与方法。
短句来源
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  soil evaluation
The first soil evaluation was carried out by a traditional method developed by FAO using a productivity index, whereas the second method consisted of the application of a new method called SINDI, developed in New Zealand.
      
A general soil evaluation shows that the content of organic matter in most soil units in Vietnam ranges between 0.5 to 3.0% soil organic matter (in the A and B horizon only) with lower levels especially on sloping land.
      
Soil evaluation for Castanea sativa afforestation in Northeastern Spain
      
His activities concentrated on soil surveying and soil evaluation for strategic crops in the area.
      
Soil evaluation for on-site sewage management systems involves a specific location in the landscape that is difficult to describe without a map.
      
  evaluation of soil
New Criteria for the Evaluation of Soil Bacterial Complexes
      
To analyse nematode community structures appropriately for the evaluation of soil ecosystem status and function requires information on the life history traits of K-strategic nematodes.
      
Evaluation of soil nutrient status in poplar forest soil by soil nutrient systematic approach
      
Soil organic carbon (SOC) was considered to be a key index in evaluation of soil degradation and soil C sequestration.
      
Evaluation of soil bacterial biomass using environmental DNA extracted by slow-stirring method
      
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Through gradual regression analysis to ten kinds nutritions of soils of 54 counties, Saanxi province, the optimum regression model for soil nutritions (including alkaline—N, quick action P; quicick ackaction K, B and Zn) has been set up. It shows that soil fertility is the limit factor of wheat production in Guanzhong plain, but this is not ase in North Shaanxi loess plateau gully hill region. Finally, correlation analysis and fuzzy cluster on soil nutriments have been done.From above mentioned, we can get a...

Through gradual regression analysis to ten kinds nutritions of soils of 54 counties, Saanxi province, the optimum regression model for soil nutritions (including alkaline—N, quick action P; quicick ackaction K, B and Zn) has been set up. It shows that soil fertility is the limit factor of wheat production in Guanzhong plain, but this is not ase in North Shaanxi loess plateau gully hill region. Finally, correlation analysis and fuzzy cluster on soil nutriments have been done.From above mentioned, we can get a lot of information about wheat production,soil assessment and nutrition diagnosis.

本文通过对陕西省54个县(市、区)10种土壤营养物质和小麦产量进行相关和多元逐步回归分析研究,总结出小麦产量和土壤营养物质的关系,建立了由碱解氮、速效磷、速效钾、硼、锌构成的土壤营养物质和小麦产量的最优回归模型,揭示了在目前生产水平下,陕北黄土高原沟壑与丘陵沟壑区,土壤肥力还具有增产潜力;关中地区土壤肥力目前在不同程度上已得到发挥。并对土壤营养物质进行了模糊聚类分析,为土壤评价、小麦生产营养诊断提供了可靠信息。

The quantitative evaluation of soil erosion in China began in 1950s.Some empirical models for soil erosion evaluation were developed in the early 1980s.And physically based models has been developed since the late 1980s. Meanwhile, the larger regional and even national evaluations of soil erosion and conservation were made. The quantitative assessment on soil loss and conservation in China can be divided into three scales, i.e. hillslope small catchment region or whole nation, and two types, i.e. empirical...

The quantitative evaluation of soil erosion in China began in 1950s.Some empirical models for soil erosion evaluation were developed in the early 1980s.And physically based models has been developed since the late 1980s. Meanwhile, the larger regional and even national evaluations of soil erosion and conservation were made. The quantitative assessment on soil loss and conservation in China can be divided into three scales, i.e. hillslope small catchment region or whole nation, and two types, i.e. empirical and physically based models. Further researches should be focused on introducting overseas models, making models to be unification and generalization, intensifying the applications of remote sensing and GIS, and developing a complete erosion model system of China.

近代中国土壤流失定量评价始于本世纪50年代,80年代初开始土壤评价统计模型的研究开发,80年代末开展了土壤侵蚀预报物理模型的探索,同时还在较大区域(如黄图高原)乃至全国尺度上进行了土壤侵蚀和水土保持的评价研究。中国土壤流失与水土保持定量评价研究可概括为3个层次:地块—小流域—区域(或国家),2种类型:统计模型;物理模型。进一步的研究应致力于国外模型的引进,解决模型的统一和通用性问题,加强遥感与GIS技术的应用,并建立完整的中国水土流失评价模型系统。

It is applied that a new technique of falling dimension named projection pursuit to soil study, through using the improved real coding based accelerating genetic algorithm to optimize the projection direction. Thus, it can transfer multi dimension data into one dimension data, through searching for the optimum projection direction to realize the soil classification and its grade evaluation.The method can avoid the artificial disturb, and acquire preferably effect. Thus, the paper provides a new method to the...

It is applied that a new technique of falling dimension named projection pursuit to soil study, through using the improved real coding based accelerating genetic algorithm to optimize the projection direction. Thus, it can transfer multi dimension data into one dimension data, through searching for the optimum projection direction to realize the soil classification and its grade evaluation.The method can avoid the artificial disturb, and acquire preferably effect. Thus, the paper provides a new method to the research of soil classification and grade evaluation.

将高维降维技术——投影寻踪分类模型 (PPC)应用到土壤学科领域 ,利用改进的加速遗传算法 (RAGA)优化投影方向 (土壤评价指标 ) ,将多维数据指标转换到低维子空间 ,通过寻求最优投影方向及投影函数值来实现对土壤的分类与等级评价 ,避免了主观赋权的人为干扰 ,取得了较好效果 ,为土壤质量变化与等级评价研究提供一条新思路与方法。

 
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