BEN LOCKWOOD DAVID C. LEBLANC DEPT. OF BIOLOGY, BALL STATE UNIVERSITY Growth-Climate Associations for White Ash (Fraxinus americana L.) in Monroe County,

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Presentation transcript:

BEN LOCKWOOD DAVID C. LEBLANC DEPT. OF BIOLOGY, BALL STATE UNIVERSITY Growth-Climate Associations for White Ash (Fraxinus americana L.) in Monroe County, Indiana

Introduction Justification  Limited information regarding white ash  Limited time to acquire it  Climate is changing Objective  Identify growth-climate association for white ash in well drained soil  Compare white ash & white oak growth- climate associations

Study Site Hoosier National Forest

Methods Sampling  D/C-D  > 50 yrs.  Undamaged  15 trees  2 cores per tree Measuring  Earlywood (EW)  Latewood (LW)  Total (RW)

Methods Mean chronology  1932 – 2012  Cross-dating & standardization  Standard dendrochronological methods Climate Data  NOAA & Historical Climate Network  Monthly climate variables  Seasonal climate variables Pearson’s correlation coefficient

Mean Monthly Maximum Temperature

Total Monthly Precipitation

Palmer Drought Severity Index

White Ash & White Oak Comparison (Total RW)

Results White ash EW  Prior to growing season White ash LW  Water stress during current growing season (June) White ash & white oak (total RW)  Similar growth-climate associations Summary

Discussion Minimal influence of climate on EW during growing season Most climate sensitivity found in LW during growing season Carbon allocation model Foster and LeBlanc (1993)

Acknowledgements Indiana Academy of Science Ball State University ASPIRE Program Zach Jameson, Ball State University

QUESTIONS?