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- The application of ~3H tracer in soil aerated zone tracing experiment 氚示踪剂在土壤包气层实验中的应用
- soil aerated zone 示踪实验
- Abstract: In this paper, the methods and main results of a study on moisture migration in aerated zone at CIRP's Field Test Site are presented. 摘 要: 本文主要介绍在核素迁移试验现场进行的黄土包气带水分运移研究的方法和主要结果。
- Based on the theory of fluid dynamics in proous media,a numerical model of gas migration in aerated zone is developed with the consideration of gas density change due to pressure variation. 以多孔介质流体动力学理论为基础,充分考虑了气体密度随压力变化气体的特点,建立了包气带气体运移数值模型。
- Poor drainage causes deficient soil aeration and death of the roots. 排水不良能减低土壤的透气性,使根死亡。
- The effects of soil aeration on physiological characters and root tuber yield formation of Ipomoea batatas (L.) Lam.CV Lushu7 and Xushul8 were studied. 摘要选用鲁薯7号和徐薯18为材料,研究了土壤通气性对甘薯某些生理特性和块根产量形成的影响。
- Numerical model of compressible gas migration in aerated zone 包气带可压缩气体流动数学模型研究
- A large amount of nitrogen that is not absorbed by crops enters as nitrate nitrogen into soils of the aeration zone after nitrification by microbial processes. 大量的氮素没有被农作物吸收,经微生物硝化作用后,以硝态氮的形式进入包气带土体,使包气带土体普遍受到氮素不同程度的污染。
- The improved soil aeration also accelerated the transportation of (superscript 14)C-photosynthates from leaves to root tubers, increased the ratio of root tuber dry weight to top dry weight. 促进(上标14)C同化物由叶片向块根的运转和分配,提高干物质在块根中的分配率;
- The soil around existing plants is cultivated (by hand using a hoe, or by machine using a cultivator) to destroy weeds and promote growth by increasing soil aeration and water infiltration. 在现存植物周围的土壤用锄耘(用手锄,或用耕耘机)除去杂草,使土壤透气与水份入渗来促进生长。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Insitu permeation test plays an important position in calculating parameters of rock formation included aeration zone, because of its high precision, convenient , simple and low cost. 原位渗水试验因精度高(较室内试验)、简便易行和经济成本低而在包气带岩层参数的求取中占有重要地位。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么?
- aerated zone soil 土壤
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- There are some clods of soil on the mat. 垫子上有些土块。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- NUMERICAL SIMULATION ON MIGRATION OF NUCLIDES UNDER WATER BYPASSING CONDITION IN LOESS AERATED ZONE 黄土包气带水分绕流条件下核素迁移的数值模拟