Impact of Texture on Sesquioxide Distribution in Southeastern Nigerian Soils
作者: Bethel UzohoNnaemeka OkoliUgochi Ekwugha
作者单位: 1Federal University of Technology, Owerri Nigeria
刊名: International Journal of Environment, 2019, Vol.8 (1), pp.43-58
来源数据库: Progressive Sustainable Developers
DOI: 10.3126/ije.v8i1.23148
原始语种摘要: Sesquioxides which play significant roles in soil classification and dominant soil properties vary in soils with particle size fractions. Using randomized complete block design, this study was conducted in the month of June 2018 to evaluate the impact of texture on sesquioxide distribution in humid rainforest soils of Southeastern Nigeria. Four mini-pedons were dug at four landscape positions (upslope, midslope, downslope and flat surface) and triplicate soil samples taken from 0-20, 20-40 and 40-60 cm depths, summing to total of 36 samples. Crystalline and amorphous Al, Fe, Mn and Si oxides were then determined at a depth of 0-20 cm using Dithionate Citrate Bicarbonate (DCB) and ammonium oxalate reagents. Dithionate and oxalate fractions in bulk soil ranged between 9300-11,400 (Fed),...
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  • sesquioxide 倍半氧化物
  • oxalate 草酸盐
  • crystallinity 结晶度
  • dithionate 连二硫酸盐
  • properties 道具
  • amorphous 非晶质的
  • particle 颗粒
  • upslope 往上
  • mobility 活动性
  • surface