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- Later, some other experiments about simulating water flow and salt transport in soil under drip irrigation with saline water were conducted in field and laboratory. 塔克拉玛干沙漠绿地土壤盐分绝大部分来源于灌溉用水,咸水灌溉前后,根系土层土壤盐分种类由以Cl~-和K~+、Na~+为主转变为以SO_4~(2-)和K~+、Na~+为主。
- Experiment on Salt Transport in Soil after Irrigation with Clear Water and Spate 清、洪水灌溉条件下土壤中盐分运移规律的试验研究
- Ligang Xu, Jingsong Yang, Qi Zhang, Hailin Niu. Modelling water and salt transport in a soil-water-plant system under different groundwater tables. Water and Environment Journal. 李正兆,高海鹰,张奇,徐力刚.;抚仙湖流域典型农田区地下水硝态氮污染及其影响因素
- The water flow and salt transport in Takelamakan Desert artificial oasis, which was irrigated with saline underground water, were been studied in this dissertation. 针对塔克拉玛干沙漠绿地现有的咸水灌溉方式和制度,研究了塔克拉玛干沙漠绿地咸水灌溉条件下的土壤水盐运动规律。 其中,对于咸水沟灌条件下土壤水盐运动的宏观规律,采用了小区试验和田间调查的研究方法;
- On the basis of the model,the effect of the immobile water on contaminants transport in soil was analyzed. 在该模型基础上,针对不可动水对污染物运移的影响进行了分析。
- The structure of macropore plays an important role in water flow and solutes transport in soil, and influences the environment of underground water. 摘要土壤大孔隙结构对土壤中水流及溶质运移以及地下水环境有着深刻影响。
- This paper reviews the research result o. modeling solute transport in soil and discusses the advantage and disadvantage of these models. 本文回顾了关于土壤中溶质运移模型的研究成果,讨论了各个模型的优势及其不足之处,介绍了应用最为广泛的传统微分方程模型。
- The soil water and salt transport were studied under 3 crop planting condition. 对3种作物种植条件下土壤水盐运移规律进行了研究。
- Soil moisture curve is elementary curve that shows the relation between potential energy and the content of water soil and analyses retaining and transporting in soil water belt. 摘要土壤水分特征曲线是表征土壤中水的含量与势能之间的关系,是研究包气带土壤水分的保持和运移所用到的基本特性曲线。
- Simulation Research on Numerical Model of Water Salt Transport of Trapezoid Canal Bottom 梯形渠道渠底土层水分溶质运移模拟研究
- The adsorption and desorption behaviors of a herbicide on soil is one of the important factors governing bio-availability and persistency of the herbicide, and play an important part in predicting its transport in soil and aquifer. 摘要除草剂在土壤上的吸附和解吸行为是支配该除草剂的环境中的生物有效性和持久性的重要因素之一,同时对于预测除草剂在土壤和潜层水中的运动也是有重要作用。
- Sorption is one of the most important mechanisms deciding Dinoseb transport in soils. 吸附是决定除草剂地乐酚在土壤中迁移的重要机制之一。
- An increase in soil water content would decrease their movement. 土壤水分含量的增加将减低它们的移动。
- This is true whether plants are grown in soil or water. 无论植物种在土里或水里这都是客观事实。
- Amounts of moisture in soil vary greatly. 土壤中湿度变化很大。
- Trains are most used for transport in that country. 那个国家的运输火车用得最多。
- The seed may grow if you plant it in soil. 如果你把这种子种在土里,它可能会生长。
- The characteristics of the infiltration, saltconcentration distribution, the influence of initial soil moisture contenton the soil water and salt transport processes and the relation between waterand salt transport are analyzed. 就一维积水入渗条件下土壤水分运动特性、盐分分布变化特征的规律、土壤初始含水量对水盐运移的影响以及水盐耦合迁移特性间的定量关系进行了重点分析。
- Research reactor fuel transport in the U.K. 英国研究堆燃料运输。
- Their role in soil has not been defined adequately. 它们在土壤中的作用还未充分肯定。