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NSSH Amendment 2
November 1997
Specific changes:
1. Part 601
- 601.01 (d) - Add the following to the first line: including
the maintenance and updating of soil surveys;
2. Part 602
- Exhibit 602-1, Article III, Section 1.0 - Change to:
Director of Soil Survey
- Exhibit 602-1, Appendix A
- Change Agricultural Stabilization and Conservation Service to
Farm Services Agency
- Change National Bureau of Standards, U.S. Department of Commerce
to National Institute of Standards and Technology, U.S.
Department of Commerce
- Add Cooperative State Research, Education, and Extension
Service, U.S. Department of Agriculture
- Add National Agricultural Statistics Service, U.S.
Department of Agriculture
- Delete Federal Crop Insurance, U.S. Department of Agriculture
- Delete Science and Education Administration, U.S. Department
of Agriculture, Extension, CRIS
- Delete State Agricultural Experiment Stations
3. Part 606
- 606.01 (a) - Add the following as a paragraph under the bulleted
items: Total acreage for all surveys within the state should
total the Natural Resource Inventory acreage for the state. This
acreage is matched to the scheduler and the map unit records.
4. Part 607
5. Part 608
- 608.08 (a) - Under Scheduler attributes, add the following:
The total acres of the soil survey area is the same as used in the
Natural Resource Inventory (NRI). The total acres of all surveys
within a state is the same as used in the Natural Resource Inventory (NRI)
state total.
- 608.10 (b) - Replace the current paragraph with the following:
The operational status categories are displayed on the Status of
Soil Surveys map in the following colors:
Published (F), dark green; Project (P1),
yellow, indicating that the field mapping is in progress or
Project (P2), light green, indicating that the
field mapping is complete; Nonproject (N), white;
Out-of-Date (D), red;
Update (U1), blue, indicating that the field
mapping is in progress; and Update (U2),
orange, indicating that the field mapping is complete.
6. Part 610
- 610.06 (b) (3) - Change the general manual reference from 402.4
(c) to 402.5 (e)
7. Part 617
- 617.06 - Replace the last two paragraphs with the following:
The Memorandum of Understanding is to state which
interpretations are to be made for a soil survey area. The MLRA
office, state soil scientist, and cooperators should agree on whether
interpretations are generated for miscellaneous land types and minor
soil components. Entry of data and preparation of soil interpretations
for miscellaneous areas are encouraged. Omission of data elements is
by joint consensus of the MLRA office, state soil scientist, and
cooperators.
Data elements used as criteria in an interpretation must be completely
populated in order to generate reliable interpretations.
Data elements are to be completely populated for major soil components
including map unit components classified as higher taxonomic
categories. The MLRA office, state soil scientist, and cooperators
should reach a joint decision for special situations where it is not
practical to populate data elements for map unit components classified
at a higher taxonomic category than soil series. If the range of
properties is too wide for interpretations, these areas may not meet
the requirements of the user defined needs of the survey.
8. Part 618
- 618.48 (c), 2nd paragraph - Replace 2nd, 3rd, and 4th sentences
with the following: In general, soils that are either highly
alkaline or highly acid are likely to be corrosive to steel. Soils
that have pH < 5.5 are likely to be corrosive to concrete. Soils that
have pH > 8.5 are likely to be highly dispersible, and piping may be a
problem.
9. Part 627
- 627.07 - Add "can be" to the first sentence: Phases can be
used to create groupings ...
- 627.07 (a) (4) (ii) - Add "commonly": Surface phases are
commonly used if stones, boulders, ...
- 627.09 - Change the first sentence to the following: Each map unit
is given a name that accurately and uniquely identifies
the unit within the legend used.
10. Part 631
- 631.07 (a)
- First sentence - Change "over 20,000" to more than 23,000
- Second sentence - Change "over 800" to more than 600
- Add to the end of the paragraph - the internet, or CD-ROM
11. Part 647
- 647.07 (m) (3) - Replace the first paragraph with the following:
Statistics are generated for each quadrangle in the soil survey
area and for the survey area. The acreage statistics are generated by
UTM projection. In addition to quality control, acreage statistics
replace the grid dot counts or planimetered acreage normally
performed. These statistics are not submitted as a part of SSURGO.
Discrepancies of more than 10 percent of the total between the Natural
Resource Inventory (NRI) total and spatially determined totals are
noted in the SSURGO review. The state soil scientist and MLRA Office
leader review and decide where adjustments are needed.
- Exhibit 647-11
- Identification Information Section, under Description, first
paragraph - change the first two sentences to the following:
This data set is a digital soil survey and generally is the most
detailed level of soil geographic data developed by the National
Cooperative Soil Survey. The information was prepared by ...
- Identification Information Section, under Description, second
paragraph - change the third sentence to the following: A
special soil features layer (point and line features) is optional.
- Identification Information Section, under Description, third
paragraph - Replace the paragraph with the following:
Purpose: SSURGO depicts information about the kinds and
distribution of soils on the landscape. The soil map and data used
in the SSURGO product were prepared by soil scientists as part of
the National Cooperative Soil Survey.
- Identification Information Section, under Cross Reference -
Replace the last paragraph with the following: Purpose: This
soil survey depicts information about the kinds and distribution of
soils on the landscape. The soil map and data used in the SSURGO
product were prepared by soil scientists as part of the National
Cooperative Soil Survey.
- Data Quality Information Section, under Attribute Accuracy - At
the end of the second paragraph, add the following:
Edge Match Statements: Edge matching of digital data is
described in terms of accuracy of matching of feature edges, feature
labels, and descriptive attributes between quadrangles or data sets.
In SSURGO, all three are required to match between adjacent
quadrangles within the survey. Only the soil survey boundaries are
required to match between surveys. Examples of edge match statements
for adjacent soil surveys:
The quadrangles in this soil survey are not edge matched
to quadrangles in adjacent soil surveys.
The quadrangles in this soil survey are edge matched to
quadrangles in adjacent soil surveys.
The quadrangles in this soil survey are edge matched to
quadrangles in the Alpha Soil Survey, but are not edge matched to
those in the Beta or Gamma Soil Surveys.
Feature edges and descriptive attributes of quadrangles
in this soil survey are matched to those in adjacent soil surveys.
Feature labels do not match.
- Data Quality Information Section, under Attribute Accuracy,
following the paragraph on Completeness Reporting - Replace the
three paragraphs with the following:
Soil scientists identify small areas of soils or miscellaneous
(nonsoil) areas that have properties and behavior significantly
different than the named soils in the surrounding map unit. These
minor components may be indicated as special features. If they have
a minimal effect on use and management, or could not be precisely
located, they may not be indicated on the map.
Specific National Cooperative Soil Survey standards and procedures
were used in the classification of soils, design and name of map
units, and location of special soil features. These standards are
outlined in Agricultural Handbook 18, Soil Survey Manual, 1993,
USDA, SCS; Agricultural Handbook 436, Soil Taxonomy, Soil Survey
Staff, 1975, USDA, SCS; and all Amendments; Keys to Soil Taxonomy,
Soil Survey Staff, (current issue); National Soil Survey Handbook,
title 430-VI, 1996.
The actual composition and interpretive purity of the map unit
delineations were based on data collected by scientists during the
course of preparing the soil maps. Adherence to National Cooperative
Soil Survey standards and procedures is based on peer review,
quality control, and quality assurance. Quality control is outlined
in the memorandum of understanding for the soil survey area and in
documents that reside with the Natural Resources Conservation
Service state soil scientist. Four kinds of map units are used in
soil surveys: consociations, complexes, associations, and
undifferentiated groups.
- Under Explanation of Template Metadata Numbered Elements Section
- Change the zip code in item 15 to 50309-2180
- Under Explanation of Template Metadata Numbered Elements Section
- Add the following as 20a:
20a - Edge Match Statements: Edge matching of digital data is
described in terms of accuracy of matching of feature edges, feature
labels, and descriptive attributes between quadrangles or data sets.
In SSURGO, all three are required to match between adjacent
quadrangles within the survey. Only the soil survey boundaries are
required to match between surveys. Examples of edge match statements
for adjacent soil surveys:
The quadrangles in this soil survey are not edge matched
to quadrangles in adjacent soil surveys.
The quadrangles in this soil survey are edge matched to
quadrangles in adjacent soil surveys.
The quadrangles in this soil survey are edge matched to
quadrangles in the Alpha Soil Survey, but are not edge matched to
those in the Beta or Gamma Soil Surveys.
Feature edges and descriptive attributes of quadrangles
in this soil survey are matched to those in adjacent soil surveys.
Feature labels do not match.
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