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soilassessment (version 0.3.1)

Soil Health Assessment Models for Assessing Soil Conditions and Suitability

Description

Soil health assessment builds information to improve decision in soil management. It facilitates assessment of soil conditions for crop suitability [such as those given by FAO ], groundwater recharge, fertility, erosion, salinization [], carbon sequestration, irrigation potential, and status of soil resources.

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Version

Install

install.packages('soilassessment')

Monthly Downloads

211

Version

0.3.1

License

GPL

Maintainer

Christian Thine Omuto

Last Published

February 22nd, 2026

Functions in soilassessment (0.3.1)

RotCmoistcorrection

A function for estimating moisture effects in RothC carbon turnover modelling

A function for calculating net primary production using air temperature and mean rainfall amount

A function for assessing pH suitability requirements for certain crops and trees

Models for converting soil pH (KCl or CaCl) to the equivalent pH (water)

Mixed-effects model for harmonizing soil electrical conductivity to the equivalent conductivity of saturated paste extract

Harmonization models for soil pH

Information on performance of soil pH (water) harmonization models

NDVIcoverfactor

Estimating Cover Factor for Erosion Models Using NDVI Remote Sensing Index for Vegetation

Mixed-effects model for harmonizing soil pH (KCl or CaCl2) to the equivalent pH (water)

Harmonization models for soil electrical conductivity

Detrmining Erosion Cover Factor (C Factor) from Vegetation Cover Fraction

A function to query global SAS data

appendTextureclass

A function for attaching soil textural classes

A function for implementing RothC carbon turnover model in the soil

A function for assessing soil carbon suitability requirements for certain crops and trees

Information on available SAS models in the harmonization service

RotCtempcorrection

A function for estimating temperature effects in organic matter decomposition rates in the soil

A function for assessing soil depth suitability requirements for certain crops and trees

A function for harmonizing soil property between uniform depth intervals in observation pits

A function for developing own harmonization model

SASdata_densityInfo

Information on global spatial distribution of locations with measured soil properties for salt-affected soils (SAS)

createTexturedata

A function for creating spatial dataframe of normalized soil texture proportions

A function for displaying names of class codes of soil conditions in the soilassessment package

A grid stack map of indicators for crop fertility requirements

Sample data of decision ranking table for mapping soil nutrient condition

A function for classifying salt-affected soils using EC and PH only

A function for guiding selection of a predition model for modelling soil properties

Correcting negative entries in classes for intenisty of salt-affected soils

A function to classify salt intensity in soil

A function for developing remote sensing indices for soil assessment

A function to classify types of salt-affected soils using EC, PH, and ESP

A function for assessing rainfall suitability requirements for certain crops and trees

A function for developing Look-up Table (LUT) for the soil condition class map

fertilityRating

A function for determining soil fertility levels for given soil property (fertility indicator)

A function to assess how well landscape features are represented in descrete samples

A function for re-classifying raster maps based on input look-up table

A function for accuracy assessment between an array of two variables

A function for assessing texture suitability requirements for certain crops and trees

A function to develop spatial map of modelling uncertainty using the bootstrap approach

A function for assessing temperature suitability requirements for certain crops and trees

comparisonTable

A function for normalizing decision ranking table

A function to display class names and codes as used in the soilassessment package

A function for assessing calcium carbonate suitability requirements for certain crops and trees

Checking internet connectivity for functions with remote call

A function for assessing drainage suitability requirements for certain crops and trees

A function to estimate rainfall erosivity from annual rainfall amounts

A function to estimate soil erodibility factor

erodibilityRisk

A function to determine soil erodibility risk

A function for assessing slope suitability requirements for certain crops and trees

Sample grid stack map of nutrient indicators for crop fertility requirements

A function to generate georeferenced locations for monitoring soil conditions

A function for estimating slope-length factor for soil erosion

Harmonization model for salt-affected soils

A function for assessing soil fertility suitability requirements for certain crops

A function for assessing stoniness suitability requirements for certain crops and trees

permeabilityClass

A function to determine permeability class

A pedotransfer function to predict electrical conductivity or any other soil property using other soil properties

Sample soil dataset for salinity mapping

A function to determine soil suitability for agricultural crops

suitabilityClass

A function to determine suitability classes for given indicator values

Sample texture dataset for mapping soil texture

Information on performance of soil electrical conductivity (EC) harmonization models

A function for assessing Cation Exchange Capacity (CEC) suitability requirements for certain crops and trees

A function for harmonizing electrical conductivity of a soil solution to that of the saturated paste extract for all textural classes

A function for assessing Electrical Conductivity suitability requirements for certain crops and trees

DataAvailabilityIndex

A function for showing sampling point density map in a geographic area

A function for harmonizing electrical conductivity of a soil solution to that of the saturated paste extract

A function for developing own harmonization model

A function for assessing Exchangeable Sodium Percent (ESP) suitability requirements for certain crops and trees

A function for assessing Length of Growing Period (LGP) suitability requirements for certain crops and trees

A function for harmonizing salt measurements into equivalent electrical conductivity in dS/m