Predicting Soil Properties Using Topographic and Climatic Variables

Predicting active-layer soil thickness using topographic variables at a small watershed scale

Knowledge about the spatial distribution of active-layer (AL) soil thickness is indispensable for ecological modeling, precision agriculture, and land resource management. However, it is difficult to obtain the details on AL soil thickness by using conventional soil survey method. In this research, the objective is to investigate the possibility and accuracy of mapping the spatial distribution ...

Soil properties and topographic relationships of some representative entisols and inceptisols in western iran

Predicting Africa Soil Properties Using Machine Learning Techniques

Different machine learning algorithms were assessed for estimating five functional soil parameters (SOC content, Calcium content, Phosphorous content, sand content, and pH value). The algorithms used include variants of linear regression and support vector regression. A closer look at the prediction performance for each target revealed that apart from pH, which consistently had worse performanc...

Soil water balance performs better than climatic water variables in tree species distribution modelling

Aim: Soil water is essential for the physiological processes of plant growth and fitness. Owing to the difficulty of assessing wide variations in soil water reserves, plant distribution models usually estimate available water for plants through such climatic proxies as precipitation data (P) or climatic water balance (P minus potential evapotranspiration). We evaluated the ability of simple cli...

Modelling complex soil properties as contaminated regionalized variables

Robust estimators of the variogram can be used to identify a random function that describes the background variation of a soil property with the minimum influence of contaminants from a quasi point process. A method is proposed to exploit this to identify data which are best treated as a realization of a quasi point process rather than of a continuous random function for purposes of spatial ana...