introduction to the soil survey and land management
TRANSCRIPT
Introduction to the
Mahmoud AlferihatAmman, 29 -07 December 2015
Soil Survey and Land
Management
History of Soil Survey
Soils information challenging because:
Outdated methods
Several classification systems
Different lab methodologies
Pre-computer logic
What is the rate of soil carbon loss in the Region?
What is the effect on food production and human
health?
How much will it cost to reverse it?
Table of Contents- Manual
Database and Management system
Geographical Information Systems-GIS
Activities
Data Entry
Data Checking
Data maintenance of soil database
Data retrieval
Data security – backup and archive
Digitizing maps
Introduction , Soil database Structure
Sources for data are:
Filed
Lab
Computer
Sources for data are:
Soil Surface Data
Horizon data – pit description
Horizon data – Bore description
Analytical Data – Chemical and Physical
Satellite images
Digital
terrain models
Climate surfaces
Legacy data:
maps & soil profiles
Legacy Data and Soil Covariates
Methodology for preparation of data
Example: Region 15 represents Mafraq area with
20 soil mapping units at scale 1:250000
Unit : 17The big area of unit :Yermic CambisolCalcaric CambisolWRB system
Jordan Soil map
Jordan Profile Distribution
1479 profiles
Syria Soil map
Unit : 14The big area of unit :Aridic Calcisols
WRB system
Palestine Soil map
Unit : 18The big area of unit :Eutric Luvisols
WRB system
Lebanon Soil map
Unit : 14The big area of unit :Lithic Leptosols
WRB system
Surface-sealed sandy soils
Burkina Faso
Erosion rate (tons/ha/year)Warburgia ugandensis pedestals, Tugen Hills, Kenya (2006) ~ 100 yrs. old.
Markus Walsh
Soil Erosion
Nutrient Deficiencies
N
P
Water Storage/Erosion Control
Mountain Province Philippines
Thank You