Datasets

creator: Darrell Schulze

Total is 10 Results
Soil Explorer

10.4231/ACC5-MB58

Darrell Schulze Nicole Kong, Shirley Li

03/04/2021

Soil Explorer is an interactive mapping tool built on publicly available soil data from a variety of sources. Viewers can zoom in on a number of states and global regions, and explore data on soil moisture, temperature, drainage and many other facets. The...

Soil Science Digital Soil Mapping Geographic Information Systems (GIS) Maps

Busia Soil Class Map

10.4231/6D95-RH34

Darrell Schulze Joshua Minai

11/18/2019

The soil landscape rule-based model was used to disaggregate the soil map units by exploiting information in the Busia soil map legend and the map unit descriptions. These descriptions were used to generate rules that were applied to a fuzzy soil class map...

Agronomy Busia Area Digital Soil Mapping Disaggregate K-Means Clustering Kenya Multiresolution Ridgetop Flatness Multiresolution Valley Bottom Flatness Planform Curvature Profile Curvature Topographic Position Index

Busia Crop Suitability Maps

10.4231/VA77-JB85

Darrell Schulze Joshua Minai

11/18/2019

To determine specific crop suitability ratings for Busia area, decision matrices developed by Rachilo and Michieka (1991) were used to generate crop suitability classes for each soil map unit. Land suitability is the fitness of a given tract of land for a...

Agronomy Beans Busia Area Cabbage Cassava Coffee Corn Cotton Crop Suitability Map Decision Matrix Forage Crops Grazing Guavas Kale Kenya Land Suitability Map Unit Millets Onions Peanuts Rice Sorghum Sugarcane Sunflower Tomato

Environmental Covariate Data for Spatial Prediction of Soil Properties for the Busia Area, Kenya

10.4231/7F9R-4W74

Darrell Schulze Joshua Minai

11/18/2019

A raster stack of 23 environmental covariates primarily based on remote sensing for predicting soil properties. These covariates were selected to represent the factors of soil formation and included the following. (1) The 1 Arc-Second (30 m) NASA shuttle R...

Agronomy Busia Area Environmental Covariates Kenya Landsat Terrain Attributes WorldClim

Environmental Covariate Data for the Disaggregation of the Reconnaissance Soil Map of the Busia Area, Kenya

10.4231/4DBT-2W68

Darrell Schulze Joshua Minai

11/18/2019

How can soil classes within a soil map unit be disaggregated? To answer this question, a soil landscape-rule based approach was used to disaggregate the soil map units by exploiting information in the map legend and the map unit descriptions. The descripti...

Agronomy Busia Area Digital Soil Mapping Disaggregate Geographic Information Systems (GIS) Kenya Soil Land Rule-Based Approach

Busia Fuzzy Soil Class Map

10.4231/TDN8-PM14

Darrell Schulze Joshua Minai

11/18/2019

Soil landscape inference model (SoLIM) maps soil type, not soil mapping units, under the assumption that soil properties are fairly homogeneous over a small spatial extent. Thus, typically it takes a raster-based approach which means that it divides the ar...

Agronomy Busia Area Digital Soil Mapping Fuzzy Membership Values Geographic Information Systems (GIS) Kenya SoLIM

Busia K-Means Cluster Map

10.4231/4Q9T-FT90

Darrell Schulze Joshua Minai

11/18/2019

Six terrain attributes were subjected to K-means clustering performed in SAGA-GIS using the hill-climbing method (Rubin, 1967) using a terrain attribute combination of multiresolution valley bottom flatness, multiresolution ridgetop flatness, planform curv...

Agronomy Geographic Information Systems (GIS) K-Means Clustering Multiresolution Ridgetop Flatness Multiresolution Valley Bottom Flatness Planform Curvature Profile Curvature Slope Position Terrain Attributes Topographic Position Index

Busia Land Quality Maps

10.4231/KYJ5-S732

Darrell Schulze Joshua Minai

11/18/2019

Although in many systems of land evaluation, single or land characteristics such as drainage condition or texture are used as a basis for diagnosis and for establishing suitability class-determining specifications, it is most useful and ideal to consider t...

Agronomy Busia Area Decision Matrix Kenya Land Evaluation Key Map Unit

Principal Components for Stepwise Multiple Linear Regression

10.4231/0FGR-Z715

Darrell Schulze Joshua Minai

11/18/2019

To ensure that multivariate covariates are independent of each other, Gobin (2000) used principal components instead of the original environmental covariates as predictors to improve on the prediction for soil-landscape modelling. Therefore, all the origin...

Agronomy Environmental Covariates PCA Raster Stack RStoolbox Package RStudio Soil-Landscape Modelling Stepwise Multiple linear Regression

Soil Property Data for Spatial Prediction of Soil Properties for the Busia Area, Kenya

10.4231/00R1-HM25

Darrell Schulze Joshua Minai

11/18/2019

The use of legacy soil data for digital soil mapping is determined by the type of data available. When soil profile data is available, it can be used as inputs to predict soil properties at unsampled locations (McBratney et al., 2003). This dataset contain...

Agronomy Busia Area Digital Soil Mapping Equal Area Quadratic Smoothing Spline Function Kenya R ithir Package RStudio

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