Xylem Water Estimation Lab.

DUE:  Tuesday, 11/8

Class data & statistics

October 29, 2004

Tree Measurements

tree height µ= 8.4 m

crown diameter µ= 6.4 m

trunk diameter µ= 17 cm

ratio living:dead branch xylem 1:0 (all alive); so infer that ALL trunk tissue is alive.

Scoring Matrix

Category

Include

Pts. possible

Pts. earned

Title
Reflect topic variables?
2.5
  

Introduction
-xylem function (2 pts.)

-2° growth (3 pts.)

-mechanism of H2O transport (3 pts.)

-hypothesis? (2 pts.)
10
  

Methods 
Since we MADE the experiment, carefully describe the methods
7.5
  

Results

 Data table- summarizing measures (5 pts.)
Show ALL formulas and calculations; may be neatly handwritten.
20
  

Discuss/

Conclusion

 Discuss your estimate regarding the tree & its environment;

need to know typical growth environment of the Sasafrass ( S. albidum Nutt.) tree.
10