Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental...
-
date post
19-Dec-2015 -
Category
Documents
-
view
214 -
download
2
Transcript of Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental...
![Page 1: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/1.jpg)
Chuixiang Yi1, Daniel Ricciuto2, and 150 more co-authors
1School of Earth and Environmental SciencesQueens College, City University of New York
2Oak Ridge National Laboratory, Oak Ridge, TN
![Page 2: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/2.jpg)
We know that global warming is caused by increasing of atmospheric CO2.
positive coupling
![Page 3: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/3.jpg)
We do not know how climate affects atmosphere-biosphere CO2 exchanges
on annual or longer time scale.
positive coupling
![Page 4: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/4.jpg)
The temperature at northern-high latitudes will be increased much more than others near the end of 21th
century, as predicted by many climate models (IPCC, 2007)
![Page 5: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/5.jpg)
Projected decreases in precipitation are likely in most subtropical land regions near the end of 21th century, as
predicted by many climate models (IPCC, 2007)
![Page 6: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/6.jpg)
positive coupling
![Page 7: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/7.jpg)
![Page 8: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/8.jpg)
8
![Page 9: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/9.jpg)
http://www.ncdsnet.net/~kinney/library/biome2.gif
![Page 10: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/10.jpg)
![Page 11: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/11.jpg)
![Page 12: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/12.jpg)
![Page 13: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/13.jpg)
![Page 14: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/14.jpg)
![Page 15: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/15.jpg)
![Page 16: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/16.jpg)
Grouping method is described on the webhttp://iopscience.iop.org/1748-9326/5/3/034007/media/erl10_3_034007_supp.pdf
![Page 17: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/17.jpg)
![Page 18: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/18.jpg)
![Page 19: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/19.jpg)
![Page 20: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/20.jpg)
![Page 21: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/21.jpg)
![Page 22: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/22.jpg)
![Page 23: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/23.jpg)
![Page 24: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/24.jpg)
![Page 25: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/25.jpg)
![Page 26: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/26.jpg)
![Page 27: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/27.jpg)
![Page 28: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/28.jpg)
3 2
0.001 0.0143 0.0271 0.2399TNEE T T T
: Prototype T - Group
3 2
0.5726 0.7323 5.7007 9.9968DNEE D D D
Prototype D - Gro : up
mean annual temperature; drynessT D
![Page 29: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/29.jpg)
D T
D T
RE RERI
RE RE
30% RI T - Group
30% RI D - Group
30% RI B - Group
100%D obsD
obs
NEE NEERE
NEE
100%T obsT
obs
NEE NEERE
NEE
![Page 30: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/30.jpg)
Acknowledgements
This work was financially supported by the U.S. National Science Foundation DEB under
Grant No. 0949637.
http://iopscience.iop.org/1748-9326/5/3/034007/fulltexthttp://environmentalresearchweb.org/cws/article/news/43529
![Page 31: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/31.jpg)
These PPTs are posted on my homepage. You are welcome to use them in
your presentations!
http://qcpages.qc.cuny.edu/~cyi/
research-control.htm
![Page 32: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/32.jpg)
C4T-independent
Tropical/subtropical
J. Ehleringer
C3T-dependent
Most located above 45oN
![Page 33: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/33.jpg)
Map of C3 and C4 grasses: All forests are C3
0-30% C4
(Arctic and alpine tundra are 100% C3)
60-100% of grasses is T-independent C4
![Page 34: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/34.jpg)
Dryness IndexnRDP
nR= Annual sum of net radiation (MJ m-2 yr-1)= 2.5 MJ kg-1 , the enthalpy of vaporizationP= Annual sum of precipitation (mm yr-1)
nR
= Annual sum of potential evaporation (mm yr-1)
M.I. Budyko(1920-2001)
![Page 35: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/35.jpg)
Dryness Index nRDP
M.I. Budyko(1920-2001)
nR E H
max nn P
RE R E E E
Potential evapotranspiration EP
Maximum evapotranspiration, or capacity of evapotranspiration by available energy
![Page 36: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/36.jpg)
Dryness Index PEDP
1D what does this mean?1D what does this mean?
![Page 37: Chuixiang Yi 1, Daniel Ricciuto 2, and 150 more co-authors 1 School of Earth and Environmental Sciences Queens College, City University of New York 2 Oak.](https://reader038.fdocuments.us/reader038/viewer/2022110322/56649d3e5503460f94a16b7c/html5/thumbnails/37.jpg)
M.I. Budyko(1920-2001)
Needle
Steppe, prairieDeciduous
Subtropical
Wet Savanna
20
40
60
80
100
R (
kcal cm
-2 y
r-1)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Dryness index
Tropical
Savanna
Tund
ra