WSP00649

• File Number: 8143
• Description: John Martin Reservoir
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 1/1/1966
• Title: Available Data at Colorado State University for the Arkansas Valley of Colorado
• Water Supply Pro - Doc Type: Data

,;

,,'

'='
(."":")
o
W
-
-

2

Aerial color slides were made during the fall of the year that show
some distribution of the phreatophyte species. Aerial photographs
helonging to the SCS and ASCS were used to map all the phreatophyte
area from Pueblo to the state line. The total phreatophyte area was
subdivided into five subcategories based on density and type as deter-
mined from the photographs, The tracing of phreatophyte area (as
obtained from photos) was then transferred to a I: ,:4, 000 scale
(7 1/2 minute Quadrangle) map and copies were provided to the
USGS in either 1963 or 1964, Aerial photograph>; for 1936, 1947, and
1957 were used to compare the changes in phreatophyte area and
density with time, The 1962 field >;tudie>; updated the analyses, and
some evaluation of 1964 photographs for the area immediately downstream
from Pueblo have been made. Estimate>; were made and published by
Bittinger and Stringham on the total acreage and water use by the
phreatophytes for the entire river valley, The maps of phreatophytes
have not been published,

Crop Pattern Data'
A windshield survey of the irrigated crop>; helwt:en La Junta
and Las Animas was made in the fall of 1961, Aerial photographs
taken in 1957 were used to map tht: individual Cl'OP pattern (field by
field) and crop acreages were measured from the photographs. This
data was used in conjunction with the Colorado Agrlcultural Statistics
publication to determine historic crop acreages within the La Junta
to Las Animas >;tudy area,

Domestic, Industrial and lrrigation Use of Water -
A study was made by Morris Skinner for the Colorado Department
of 'Commerce'and Development. in. I 964,and-I.96 5--to,evaluate the water.
use and potential water resources of the Arkansas Valley, Data on
municipal and industrial use for many of the cities was compiled for
various periods of record, Summaries of streamflow and diversion
records were also included,

Groundwater Data'
Other data supplied by the USGS to Colorado State University
is available with some on IBM cards.