Page 5 - World Reference Base for Soil Resources of Thailand
P. 5
Land Development Department Library
Contents
Page
Preface 5
Chapter 1 Background and basics 6
Basic Principles of WRB ............................................................................................... 6
Structure of WRB .......................................................................................................... 7
Rules for classification in the WRB ........................................................................... 9
Diagnostic horizons, properties and materials ...................................................... 10
Chapter 2 Keys to the Reference Soil Groups 15
Chapter 3 The Reference Soil Groups of Thailand 18
Acrisols ........................................................................................................................... 21
Arenosols ........................................................................................................................ 39
Cambisols ....................................................................................................................... 48
Ferralsols......................................................................................................................... 57
Fluvisols .......................................................................................................................... 66
Gleysols .......................................................................................................................... 75
Histosols .......................................................................................................................... 87
Kastanozems .................................................................................................................. 93
Leptosols ........................................................................................................................ 99
Luvisols ............................................................................................................................ 105
Plinthosols ...................................................................................................................... 120
Podzols ............................................................................................................................ 132
Solonchaks ..................................................................................................................... 138
Solonetz .......................................................................................................................... 144
Vertisols ........................................................................................................................... 150
References 160
