| The Heinz
Center's State of the Nation's Ecosystems |
| ecosystem: |
Grasslands and Shrublands |
| indicator Name: |
Number and Duration
of Dry Periods in Grassland/Shrubland Streams and Rivers: Streams
That Have Zero-Flow Periods |
| page # in printed
report: |
166 |
| location on page: |
top |
| data source: |
U.S. Geological Survey;
analysis by the University of Colorado. Coverage: grassland/shrubland
regions (see map in Grasslands and Shrublands Introduction) in lower
48 states. |
| notes: |
please see technical
notes for further details on accessing these data from their original
source; this data table comes from a specific graphic in The State
of the Nation's Ecosystems report (www.heinzctr.org/ecosystems) |