Data set code PWV02

TITLE OF DATA SET-- Importance values of gallery forest vegetation

ABSTRACT:
       Eighteen gallery forest stands, representing nearly all of the nondisturbed forests on
Konza Prairie, were sampled during the 1983 growing season. The point-quarter method at 20
sample points was used to sample overstory vegetation. Species names and diameter were
recorded for the four sampled trees in each plot. From these data frequency, density and
dominance were calculated to derive importance values for each species in a stand.

Keywords that describe data set: importance values, gallery forests, point-quarter method,
ordination

DATE DATA COMMENCED: 05/15/83
DATE DATA TERMINATED: 07/15/83
PRINCIPLE INVESTIGATOR: John M. Briggs

Data Format Specification
1. DATACODE                                                          1-5    A5     
2. RECTYPE                                                           6      I1     
3. YEAR                                                              7-8    I2
4. MONTH                                                             9-10   I2
5. DAY                                                               11-12  I2
6. STAND             Stand identification number                     18-19  I2
7. POINT             Point (1-20)                                    21-22  I2
8. QUADRANT          Quadrant (1-4)                                  24     I1
9. SPECCODE          Species code                                    26-28  I3     
10. GENUS            Abbreviation of genus                           30-35  A6
11. SPECIES          Abbreviation of species                         37-41  A5
12. VARIETY          Abbreviation of variety                         43-46  A4
13. DISTANCE         Distance from tree to point center meters       48-52  F5.2   
14. DIAMETER         Diameter of tree at breast height-- cm          54-58  F5.1   
15. AGE TREE         Age based on ring count years                   60-62  I3

Name                 Value                       Definition of Code Value

SPECCODE             158                         Ulmus americana
                     199                         Gleditsia triacanthos
                     200                         Celtis occidentalis
                     293                         Juniperus virginiana
                     304                         Quercus muehlenbergii
                     305                         Quercus macrocarpa
                     307                         Aesculus glabra
                     310                         Juglans nigra
                     317                         Gymnocladus dioica
                     324                         Cercis canadensis
                     328                         Morus alba
                     329                         Fraxinus pennsylvanica
                     339                         Platanus occidentalis
                     382                         Tilia americana
                     394                         Acer negundo

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