PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf ·...
Transcript of PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf ·...
![Page 1: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/1.jpg)
![Page 2: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/2.jpg)
![Page 3: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/3.jpg)
![Page 4: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/4.jpg)
![Page 5: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/5.jpg)
Nitrogen = NPP
Right?
![Page 6: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/6.jpg)
Theoretical Nutrient Response Curve
![Page 7: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/7.jpg)
PredictedPost N
deposition
Pre N
deposition
Theoretical Nutrient Response Curve
![Page 8: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/8.jpg)
![Page 9: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/9.jpg)
![Page 10: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/10.jpg)
DGIF
RICE
![Page 11: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/11.jpg)
![Page 12: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/12.jpg)
A multi-year study• 10 total plots (4 at Rice,
6 at DGIF)• Calculated change in
biomass from 2010-2012, 2012-2014, and 2014-2015
• Data set includes DBH and species data for each tree in 2010, 2012, and 2014
![Page 13: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/13.jpg)
Litter collection baskets
![Page 14: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/14.jpg)
Waste water discharge as experimental
chronic nitrogen deposition treatments
![Page 15: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/15.jpg)
![Page 16: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/16.jpg)
Lysimeters at 20 cm depth
![Page 17: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/17.jpg)
Canopy structural complexity with portable
canopy LiDAR (PCL)
![Page 18: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/18.jpg)
*error bars denote standard error
Wood NPP
![Page 19: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/19.jpg)
2012 2015Leaf NPP
![Page 20: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/20.jpg)
2012 2015Leaf NPP
DGIF Treatment
![Page 21: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/21.jpg)
Species effects
Hickory, Poplar
Oak, Pine
![Page 22: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/22.jpg)
Lysimeter data
![Page 23: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/23.jpg)
• No differences in LAI or
fPAR
• Light use efficiency
(LUE) in treatments more
than double that of control
![Page 24: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/24.jpg)
Canopy complexityHardiman et al. 2011
![Page 25: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/25.jpg)
Canopy complexityHardiman et al. 2011
![Page 26: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/26.jpg)
Canopy complexityHardiman et al. 2011
![Page 27: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/27.jpg)
![Page 28: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/28.jpg)
Future directions• Leaf canopy
analysis
• Soil respiration
• Soil chemistry and
physics
![Page 29: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/29.jpg)
ACKNOWLEDGMENTS
Funding sources: National Science
Foundation (Emerging Frontiers, Award
No. 1550657), VCU Rice Rivers Center
Special thanks to the Forest Ecology
students 2010, 2012, 2014, and 2015; the
Gough lab group (Ben, Jeff-Ben, Ellen,
Lisa, and Cynthia), Tim Assal (U of M),
Brady Hardiman (Purdue), and Bob Fahey
(UCONN), Aaron Mills (UVA)
![Page 30: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/30.jpg)
*Significant differences by location and treatment (p < 0.5) based on ANOVA
![Page 31: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/31.jpg)
And Michael’s stuff maybe…
![Page 32: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/32.jpg)
Future directions…
![Page 33: PowerPoint Presentationatkinsjeff.github.io/pdfs/rice_npp_esa_2016_atkins_STANDARD_FORMAT.pdf · Nitrogen = NPP Right? Theoretical Nutrient Response Curve. Post N Predicted deposition](https://reader033.fdocuments.us/reader033/viewer/2022041507/5e25917377ccea54b645d501/html5/thumbnails/33.jpg)
Let’s look at rugosity stuff
Add species specific and use relative growth rate
And add error bar notation to bars in boxplotAdjust litter traps by area to
Add error bars to NPP woodAdd leaf NPP graphIf you want to highlight Look at 2012 and 2015 moving windowLook at LEAF NPP and biomass change.
Treatment response changes voer time. Three-interaction
Funders: NSF, Rice Rivers Center, NSF No. Award 1550657
Only a couple of thoughts, really:1.Intersting to see the relative growth rate stuff, but I wonder if it’s too much (27 slides for 15 minute talk!); plus, trends are difficult to pick out. Will definitely be useful later.2.Rugosity v NPP — Would be interesting and maybe revealing to first adjust NPP values for N trt/site to see if they then correlate with rugosity. You could model Ndep v NPP (since we don’t have Ndep yet from Mike (?), some numeric categorical ranking) and then plot residuals against rugosity. Or, you could run a stepwise analysis and see what is retained in the model: NPP (2016 only) = rugosity + site + N (categorical low = 0; high = 1) + rugosity*site + rugosity*N + N*site + rugosity*site*N. This would be a way to statistically test our hypothesis that there’s an N x structure interaction affecting NPP.Love the VA map, and other stylistic liberties.
Chris