United States
Department of
Agriculture
Instructions for
Natural
Resources
Conservation
Service
Collecting
Resource
Inventory
Division
1998 Special
Natural
Resources
Inventory
National
and Analysis
Institute
Resources
Resources
Inventory
Support
Branch
Inventory
Iowa State
University
Statistical
Laboratory
Study Data
August 1998
TABLE OF CONTENTS
1998 Special NRI Study CASI Overview (July 29, 1998)
ii
1998 Computer-Assisted Survey Instrument.......................................................................... ii
PSU Module I–General Information ...................................................................................... 1
PSU Module II–PSU Cropland Polygon and Conservation Practice....................................... 3
PSU Module III–Water Areas and Shorelines...................................................................... 13
Point Module I–General Information ................................................................................... 35
Point Module II–Conservation Reserve Program................................................................. 43
Point Module III–Land Use................................................................................................. 47
Point Module IV–Irrigation................................................................................................. 59
Point Module V–USLE Erosion .......................................................................................... 63
Point Module VI–WEQ Erosion.......................................................................................... 71
Point Module VII–Conservation Practices........................................................................... 81
Exhibit 1 ............................................................................................................................L-1
Exhibit 2 ..................................................................................................................... WEQ-1
1998 Special NRI Study CASI Overview