Water retention and shrinkage curves of weathered pyroclastic soil
نویسندگان
چکیده
منابع مشابه
Physics of the soil medium organization part 1: thermodynamic formulation of the pedostructure water retention and shrinkage curves
1 Qatar Foundation, Qatar Environment and Energy Research Institute, Doha, Qatar 2 Institut de Recherche pour le Développement, Bondy, France 3 Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA 4 Valorhiz SAS, Parc Scientifique Agropolis II Bat 6, Montferrier-sur-Lez, France 5 Biological and Agricultural Engineering Department, and Zachry Departme...
متن کاملModeling the Soil Water Retention Curves of Soil-Gravel Mixtures with Regression Method on the Loess Plateau of China
Soil water retention parameters are critical to quantify flow and solute transport in vadose zone, while the presence of rock fragments remarkably increases their variability. Therefore a novel method for determining water retention parameters of soil-gravel mixtures is required. The procedure to generate such a model is based firstly on the determination of the quantitative relationship betwee...
متن کاملA new model for predicting relative nonwetting phase permeability from soil water retention curves
[1] Relative permeability of the nonwetting phase in a multiphase flow in porous media is a function of phase saturation. Specific expressions of this function are commonly determined by combining soil water retention curves with relative nonwetting phase permeability models. Experimental evidence suggests that the relative permeability of the nonwetting phase can be significantly overestimated...
متن کاملBiochar from Sugarcane Filtercake Reduces Soil CO2 Emissions Relative to Raw Residue and Improves Water Retention and Nutrient Availability in a Highly-Weathered Tropical Soil
In Brazil, the degradation of nutrient-poor Ferralsols limits productivity and drives agricultural expansion into pristine areas. However, returning agricultural residues to the soil in a stabilized form may offer opportunities for maintaining or improving soil quality, even under conditions that typically promote carbon loss. We examined the use of biochar made from filtercake (a byproduct of ...
متن کاملMultiscale Pedotransfer Functions for Soil Water Retention
Soil hydraulic properties are needed in globaland regionalscale circulation models for hydrologic and climate forecasting. They are also necessary in pointand nonpoint-source contaminant transport models. Prediction accuracy of these models is highly dependent on the quality of the model parameters. Collecting the required soil hydraulic parameters by direct measurement at any model grid scale ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: E3S Web of Conferences
سال: 2020
ISSN: 2267-1242
DOI: 10.1051/e3sconf/202019503003