Table S1 Summary of all experiments included in the meta-analysis. Stars indicate which experiment provided that type of data. Con:
experimental condition; LAT: latitude; LON: longitude; method: UV treatment method; type: types of UV; Trt: treatments (+: increased the level
of UV radiation; -: reduced the level of UV radiation); microbe: whether microbial decomposition was or was not inhibited; L: length of the
experiment (month); M: litter mass; K: litter decomposition rate; C: carbon; N: nitrogen; Lig: lignin; DOC: dissolved organic carbon; MBC:
microbial biomass carbon; MR: microbial respiration.
Citation
Ecosystem
Austin & Ballaré,
Semi-arid
2010
grassland
Austin & Ballaré,
Semi-arid
2010
grassland
Austin & Ballaré,
Semi-arid
2010
grassland
Austin & Ballaré,
Semi-arid
2010
grassland
Austin & Vivanco,
Semi-arid
2006
steppe
Austin & Vivanco,
Semi-arid
2006
steppe
Bao et al., 2014
Agriculture
ecosystem
M
Con
LAT
LON
Method
Type
Trt
Microbe
L
Field
-31.04
-64.31
Filter
UVB
-
Inhibited
4
*
Field
-31.04
-64.31
Filter
UV
-
Inhibited
4
*
Field
-34.35
-58.29
Filter
UVB
-
Inhibited
2.5
*
Field
-34.35
-58.29
Filter
UV
-
Inhibited
2.5
*
Field
-45.41
-70.16
Filter
UVB
-
Not Inhibited
18
*
Field
-45.41
-70.16
Filter
UVB
-
Inhibited
18
*
Lab
--
--
Lamp
UVB
+
Not Inhibited
2.5
K
C
N
C/N
Lig
DOC
MBC
*
MR
Bao et al., 2014
Bao et al., 2014
Bao et al., 2014
Barnes et al., 2012
Barnes et al., 2012
Barnes et al., 2012
Brandt et al., 2010
Brandt et al., 2010
Brandt et al., 2010
Brandt et al., 2010
Agriculture
ecosystem
Agriculture
ecosystem
Agriculture
ecosystem
Semi-desert
savanna
Semi-desert
savanna
Semi-desert
savanna
Mesic
grassland
Mesic
grassland
Semi-arid
grassland
Semi-arid
grassland
Lab
--
--
Lamp
UVB
+
Not Inhibited
2.5
*
Lab
--
--
Lamp
UVB
+
Not Inhibited
2.5
*
Lab
--
--
Lamp
UVB
+
Not Inhibited
2.5
*
Field
31.47
-110.53
Lamp
UV
-
Inhibited
7.5
*
*
Field
31.47
-110.53
Lamp
UV
-
Inhibited
7.5
*
*
Field
31.47
-110.53
Lamp
UV
-
Inhibited
7.5
*
*
Field
45.40
-93.20
Filter
UV
-
Not Inhibited
24
*
*
*
*
Field
45.40
-93.20
Filter
UV
-
Not Inhibited
24
*
*
*
*
Field
40.80
-104.80
Filter
UV
-
Not Inhibited
24
*
*
*
*
Field
40.80
-104.80
Filter
UV
-
Not Inhibited
24
*
*
*
*
*
Brandt et al., 2010
Arid grassland
Field
34.40
-106.90
Filter
UV
-
Not Inhibited
24
*
*
*
Brandt et al., 2010
Arid grassland
Field
34.40
-106.90
Filter
UV
-
Not Inhibited
24
*
*
*
Field
40.49
-104.46
Filter
UV
-
Not Inhibited
36
*
*
Brandt et al., 2007
Semi-arid
grassland
Brandt et al., 2007
Brandt et al., 2007
Brandt et al., 2007
Brandt et al., 2007
Brandt et al., 2007
Semi-arid
grassland
Semi-arid
grassland
Semi-arid
grassland
Semi-arid
grassland
Semi-arid
grassland
Field
40.49
-104.46
Filter
UV
-
Not Inhibited
36
*
*
Field
40.49
-104.46
Filter
UV
-
Not Inhibited
36
*
*
Field
40.49
-104.46
Filter
UV
-
Not Inhibited
36
*
*
Field
40.49
-104.46
Filter
UV
-
Not Inhibited
36
*
Field
40.49
-104.46
Filter
UV
-
Not Inhibited
36
*
Day et al., 2007
Arid desert
Field
33.50
-111.80
Filter
UVB
-
Not Inhibited
5
*
Day et al., 2007
Arid desert
Field
33.50
-111.80
Filter
UVB
-
Not Inhibited
5
*
Day et al., 2007
Arid desert
Field
33.50
-111.80
Filter
UVB
-
Not Inhibited
5
*
Day et al., 2007
Arid desert
Field
33.50
-111.80
Filter
UVB
-
Not Inhibited
4
*
Day et al., 2007
Arid desert
Field
33.50
-111.80
Filter
UVB
-
Not Inhibited
4
*
Day et al., 2007
Arid desert
Field
33.50
-111.80
Filter
UVB
-
Not Inhibited
4
*
Field
31.36
34.15
Shade
Total
-
Not Inhibited
4
*
*
*
Field
32.30
34.55
Shade
Total
-
Not Inhibited
4
*
*
*
Dirk et al., 2010
Dirk et al., 2010
Mediterranean
shrubland
Mediterranean
shrubland
*
Duguay &
Agriculture
Klironomos, 2000
ecosystem
Duguay &
Agriculture
Klironomos, 2000
ecosystem
Feng et al., 2011
Feng et al., 2011
Gallo et al., 2009
Gallo et al., 2009
Gallo et al., 2009
Gallo et al., 2006
Gallo et al., 2006
Gehrke et al., 1995
Gehrke et al., 1995
Gehrke et al., 1995
Gehrke et al., 1995
Agriculture
ecosystem
Forest
ecosystem
Semi-arid
riparian
Semi-arid
riparian
Semi-arid
riparian
Arid
ecosystem
Arid
ecosystem
Subarctic
heathland
Subarctic
heathland
Subarctic
heathland
Subarctic
heathland
Lab
--
--
Lamp
UVB
-
Not Inhibited
2
*
*
Lab
--
--
Lamp
UVB
-
Not Inhibited
2
*
*
Lab
--
--
Lamp
UV
+
Inhibited
3
*
Lab
--
--
Lamp
UV
+
Inhibited
3
*
Field
35.13
-106.69
Shade
Total
-
Not Inhibited
23
*
Field
35.13
-106.69
Shade
Total
-
Not Inhibited
23
*
Field
35.13
-106.69
Shade
Total
-
Not Inhibited
16
*
Lab
--
--
Lamp
UV
-
Not Inhibited
6
*
*
Lab
--
--
Lamp
UV
-
Not Inhibited
6
*
*
Field
68.21
18.49
Lamp
UV
+
Not Inhibited
12
*
Lab
--
--
Lamp
UVB
-
Not Inhibited
2
*
Lab
--
--
Lamp
UVB
-
Not Inhibited
2
Lab
--
--
Lamp
UV
+
Not Inhibited
0.2
*
*
Gehrke et al., 1995
Henry et al., 2008
Henry et al., 2008
Johnson et al.,
2002
Johnson et al.,
2002
Kirschbaum et al.,
2011
Subarctic
--
--
Lamp
UV
+
Not Inhibited
2
Field
37.40
-122.22
Shade
Total
-
Not Inhibited
12
*
Field
37.40
-122.22
Shade
Total
-
Not Inhibited
12
*
Arctic
Lab
--
--
Lamp
UVB
+
Not Inhibited
60
*
Arctic
Lab
--
--
Lamp
UVB
+
Not Inhibited
60
*
Grassland
Lab
--
--
Lamp
UV
-
Inhibited
2
*
*
Lab
--
--
Lamp
UV
-
Inhibited
2
*
*
Field
43.42
-102.20
Filter
UV
-
Inhibited
12
*
Field
43.42
-102.20
Filter
UV
-
Not Inhibited
12
*
Field
32.14
118.42
Lamp
UVB
+
Not Inhibited
8
*
Field
32.14
118.42
Lamp
UVB
+
Not Inhibited
8
*
Field
51.07
-0.49
Filter
UV
-
Not Inhibited
12
*
*
Field
51.07
-0.49
Filter
UV
-
Not Inhibited
12
*
*
Mediterranean
grassland
Mediterranean
grassland
Kirschbaum et al.,
Forest
2011
ecosystem
Lin & King, 2014
Lin & King, 2014
Lou et al., 2011
Lou et al., 2011
*
Lab
heathland
Semi-arid
grassland
Semi-arid
grassland
Agriculture
ecosystem
Agriculture
ecosystem
Messenger et al.,
Forest
2012
ecosystem
Messenger et al.,
Forest
2012
ecosystem
*
*
*
*
*
Moody et al., 2001
Moody et al., 2001
Moody et al., 2001
Subarctic
shrub heath
Dune
grassland
Experimental
garden
Moody et al., 2001
Arctic tundra
Newsham et al.,
Temperate
1997
woodland
Newsham et al.,
Temperate
1997
woodland
Pancotto et al.,
Sub-Antarctic
2005
shrubland
Pancotto et al.,
Sub-Antarctic
2005
shrubland
Pancotto et al.,
Sub-Antarctic
2003
shrubland
Pancotto et al.,
Sub-Antarctic
2003
shrubland
Pancotto et al.,
Sub-Antarctic
2003
shrubland
Pancotto et al.,
Sub-Antarctic
2003
shrubland
Rinnan et al., 2008
Subarctic mire
Field
68.00
18.00
Lamp
UV
+
Inhibited
14
*
*
*
Field
52.00
4.00
Lamp
UV
+
Inhibited
14
*
*
*
Field
38.00
29.00
Lamp
UV
+
Inhibited
14
*
*
*
Field
78.00
16.00
Lamp
UV
+
Inhibited
14
Field
52.24
-0.14
Lamp
UVA
+
Not Inhibited
15
*
*
Field
52.24
-0.14
Lamp
UV
+
Not Inhibited
15
*
*
Field
-54.51
-68.36
Filter
UVB
-
Not Inhibited
29
*
*
*
Field
-54.51
-68.36
Filter
UVB
-
Not Inhibited
29
*
*
*
Field
-54.51
-68.35
Filter
UVB
-
Not Inhibited
4
*
*
Field
-54.51
-68.35
Filter
UVB
-
Not Inhibited
4.6
*
*
Field
-54.51
-68.35
Filter
UVB
-
Not Inhibited
4.6
Field
-54.51
-68.35
Filter
UVB
-
Not Inhibited
4.6
Field
67.22
28.38
Lamp
UVB
+
Not Inhibited
30
*
*
*
*
Rinnan et al., 2008
Rinnan et al., 2006
Rinnan et al., 2006
Rinnan et al., 2005
Rinnan et al., 2005
Subarctic mire
Mire
ecosystem
Mire
ecosystem
Arctic
heathland
Arctic
heathland
Rozema et al.,
Dune
1997
grassland
Rozema et al.,
Dune
1997
grassland
Rozema et al.,
Dune
1997
grassland
Rozema et al.,
Dune
1997
grassland
Rozema et al.,
Dune
1997
grassland
Rozema et al.,
Dune
1997
grassland
Smith et al., 2010
Smith et al., 2010
Forest
ecosystem
Forest
ecosystem
Field
67.22
28.38
Lamp
UVB
+
Not Inhibited
30
*
Field
55.41
12.06
Lamp
UVB
+
Not Inhibited
2
*
Field
55.41
12.06
Lamp
UVB
+
Not Inhibited
2
*
Field
74.30
-20.30
Filter
UV
-
Not Inhibited
36
*
Field
74.30
-20.30
Filter
UV
-
Not Inhibited
36
*
Field
52.30
4.40
Lamp
UVB
+
Not Inhibited
2
*
Field
52.30
4.40
Lamp
UVB
+
Not Inhibited
2
*
Field
52.30
4.40
Lamp
UVB
+
Not Inhibited
1.5
*
*
Field
52.30
4.40
Lamp
UVB
+
Not Inhibited
1.5
*
*
Field
52.30
4.40
Lamp
UVB
+
Not Inhibited
2
*
Field
52.30
4.40
Lamp
UVB
+
Not Inhibited
2
*
Lab
--
--
Lamp
UV
+
Not Inhibited
6
*
*
Lab
--
--
Lamp
UV
+
Not Inhibited
6
*
*
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Smith et al., 2010
Song et al., 2014
Song et al., 2014
Song et al., 2014
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Forest
ecosystem
Subtropical
forest
Subtropical
forest
Subtropical
forest
Lab
--
--
Lamp
UV
+
Not Inhibited
6
*
*
Lab
--
--
Lamp
UV
+
Inhibited
6
*
*
Lab
--
--
Lamp
UV
+
Inhibited
6
*
*
Lab
--
--
Lamp
UV
+
Inhibited
6
*
*
Lab
--
--
Lamp
UV
-
Not Inhibited
6
*
*
*
Lab
--
--
Lamp
UV
-
Not Inhibited
6
*
*
*
Lab
--
--
Lamp
UV
-
Not Inhibited
6
*
*
*
Lab
--
--
Lamp
UV
-
Inhibited
6
*
*
*
Lab
--
--
Lamp
UV
-
Inhibited
6
*
*
*
Lab
--
--
Lamp
UV
-
Inhibited
6
*
*
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
32
*
*
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
32
*
*
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
32
*
*
*
Song et al., 2014
Song et al., 2014
Song et al., 2014
Song et al., 2012
Song et al., 2012
Song et al., 2011
Song et al., 2011
Uselman et al.,
2011
Uselman et al.,
2011
Uselman et al.,
2011
Our experiment
Our experiment
Subtropical
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
32
*
*
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
32
*
*
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
32
*
*
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
12
*
Field
30.16
119.44
Lamp
UV
+
Not Inhibited
12
*
Field
30.14
119.42
Lamp
UV
+
Not Inhibited
12
*
*
*
*
Field
30.14
119.42
Lamp
UV
+
Not Inhibited
12
*
*
*
*
Desert riparian
Field
39.51
-119.23
Filter
UV
-
Not Inhibited
12
*
*
*
Desert riparian
Field
39.51
-119.23
Filter
UV
-
Not Inhibited
12
*
*
*
Desert riparian
Field
39.51
-119.23
Filter
UV
-
Not Inhibited
12
*
*
*
Lab
--
--
Lamp
UV
+
Inhibited
6.5
*
*
*
*
*
Lab
--
--
Lamp
UV
+
Not Inhibited
6.5
*
*
*
*
*
forest
Subtropical
forest
Subtropical
forest
Subtropical
forest
Subtropical
forest
Subtropical
forest
Subtropical
forest
Semi-arid
grassland
Semi-arid
grassland
*
*
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