A mechanistic model to predict soil thickness in a valley area of Rio Grande do Sul, Brazil
作者: Benito R. BonfattiAlfred E. HarteminkTom VanwalleghemBudiman MinasnyElvio Giasson
作者单位: 1Universidade Federal do Rio Grande do Sul, UFRGS – Faculdade de Agronomia, Porto Alegre, RS, Brazil
2University of Wisconsin - Madison, Department of Soil Science, FD Hole Soils Lab, Madison, WI, USA
3Univesity of Cordoba, Department of Agronomy, Campus de Rabanales, Cordoba, Spain
4University of Sydney, Department of Environmental Sciences, Faculty of Agriculture and Environment, Eveleigh, New South Wales, Australia
刊名: Geoderma, 2018, Vol.309 , pp.17-31
来源数据库: Elsevier Journal
DOI: 10.1016/j.geoderma.2017.08.036
关键词: Landscape evolution modelSoil production functionSoil thicknessPedogenesis
英文摘要: Abstract(#br)Soil thickness is an important soil characteristic changing over space and time. In this study, we used a mechanistic soil landscape models to predict soil thickness and show it under development over time. The study was conducted in an 8,118ha area in Vale dos Vinhedos, Rio Grande do Sul State, Brazil. Different soil production functions (SPF) combined with a landscape evolution model (LEM) were explored. The SPF calculated the soil production rates and LEM calculated erosion and deposition patterns. We evaluated two types of model. Model 1 was used to predict the current soil thickness. The model equals the erosion estimations (by a LEM) to the soil production rate (by a SPF). Three types of SPF were tested, based on a spatial variation of soil moisture....
全文获取路径: Elsevier  (合作)
影响因子:2.345 (2012)

  • mechanistic 机械的
  • Brazil 巴西
  • thickness 厚度
  • valley 
  • predict 预见
  • model 模型