Table 1. Environmental parameters used to predict the potential geographic distribution of Platycladus orientalis.

Code	Name	Resolution	Unit	Source
Bio1	Annual mean air temperature	30″×30″	°C×10	http://www.worldclim.org/
Bio2	Mean diurnal air temperature range	30″×30″	°C×10	http://www.worldclim.org/
Bio3	Isothermality	30″×30″	×100	http://www.worldclim.org/
Bio4	Air temperature seasonality	30″×30″	×100	http://www.worldclim.org/
Bio5	Max air temperature of the warmest month	30″×30″	°C×10	http://www.worldclim.org/
Bio12	Annual precipitation	30″×30″	mm	http://www.worldclim.org/
Bio14	Precipitation of the driest month	30″×30″	mm	http://www.worldclim.org/
Bio15	Precipitation seasonality (coefficient of variation)	30″×30″	mm	http://www.worldclim.org/
FRS	Ground-frost frequency	30″×30″		http://www.ipcc-data.org/obs/cru_ts2_1.html
GDD	Growing degree days	0.5°×0.5°	day	http://www.sage.wisc.edu/atlas/index.php
SC	Soil organic carbon	0.5°×0.5°		http://www.sage.wisc.edu/atlas/index.php
SpH	Soil pH	0.5°×0.5°		http://www.sage.wisc.edu/atlas/index.php
VAP	Vapor pressure	0.5°×0.5°	hPa	http://www.ipcc-data.org/obs/cru_ts2_1.html
WET	Wet-day frequency	0.5°×0.5°		http://www.ipcc-data.org/obs/cru_ts2_1.html
UVB1	Annual mean UV-B	30″×30″	J m-2 •day-1	http://www.ufz.de/gluv/
UVB2	UV-B seasonality	30″×30″	J m-2 •day-1	http://www.ufz.de/gluv/
UVB3	mean UV-B of lightest month	30″×30″	J m-2 •day-1	http://www.ufz.de/gluv/
UVB4	mean UV-B of lowest month	30″×30″	J m-2 •day-1	http://www.ufz.de/gluv/