解析 A。解析:植物在沙和黏土比例平衡的土壤里生长最好。sand and clay 沙和黏土平衡的土壤兼具排水性和保水性等优点。salt and water 盐和水不是土壤的主要成分且盐多了不利于植物生长。air and sunlight 空气和阳光不是土壤的成分。fertilizer and pesticides 肥料和农药不是土壤的正常组成部分。
avery thank your support on this issue 非常感谢您的支持关于这个论点[translate] aHowever, sand and clay make a soil more akin to concrete than the rich loam all gardeners desire. 然而,沙子和黏土比富有的沃土使土壤如同对混凝土所有花匠欲望。[translate]...
Sand and clay mineralogyquartzvermiculiteShorea robusta (sal)Doon valleymineralogy and petrologygeochemistry.The peteromineralogical characterization of the soil was carried out for the 12 soil profiles exposed in the Shorea robusta dominated forests of the Siwalik forest division, Dehradun. The quartz was...
Soil TextureNatural RadionuclidesIn this research, a gamma ray sensor (The Mole) was used to get the natural radionuclides concentration in in the surface layer of cultivated soils. For sand, silt and clay predictions, an adaptive neuro fuzzy inference system (ANFIS) was performed to predict ...
Sands have small surface areas and have an almost negligible role in the chemical activity of the soil, i.e. they are chemically insert or inactive. Sand acts as the framework for the active particles, i.e.: silts (fine) and clay. Sand does not hold much water because the particles ...
PartI:SoilTexture Soiliscomposedofparticlesthatarecategorizedintogroupsaccordingtotheirsize,asshowninthetablebelow. Onemethodofclassifyingsoilsistomeasuretherelativeamountsofsand,silt,andclayinasoilsample,thenuseasoil triangletodeterminethesoiltype.Inthislab,thetextural classificationofasoilsamplewillbedeterminedby ...
the Bay of Bengal.The sediment load of the Ganges-Brahmaputra-Meghna (GBM) river system consists exclusively of fine sand, silt and clay at their lower... DK Datta,V Subramanian - 《Environmental Geology》 被引量: 191发表: 1997年 Relationship between mineral composition or soil texture and av...
Deformation characteristics of a compacted clay in collapse under isotropic and triaxial stress state. Deformation behavior of an unsaturated soil in collapse was studied using a modified triaxial test apparatus. Three kinds of wetting test were conducted on compacted clay specimens. (i) wetting tests...
Soil-atmosphere flux of nitrous oxide and methane measured over two years on sand and clay soils in undisturbed forest at the flona Tapajos, Brazil.Soil-atmosphere flux of nitrous oxide and methane measured over two years on sand and cl...