Ecological Archives E086-177-A2

M. Knorr, S. D. Frey, and P. S. Curtis. 2005. Nitrogen additions and litter decomposition: a meta-analysis. Ecology 86:3252–3257.

Appendix B. Site and soil characteristics.

Reference

Soil description

Vegetation type

Ambient N deposition
(kg ·ha-1·yr-1)

MAP
(mm/yr)

MAT
(°C)

N additions
(kg ·ha-1·yr-1)

Field studies

           

1. Adams and Angradi (1995)

mesic typic dystrochrept; silt loam

mixed hardwood

19.21

1444

9

53.8

2. Berg and Tamm (1991)

glacial till

Norway spruce

17.5

775

3.4

60

3. Bryant et al. (1998)

inceptisols overlain with loess

Alpine tundra spp.

10.08

930

-3.8

600

4. Carreiro et al. (2000)

ND

mixed hardwood

10

828

8

20, 80

5. Flanagan et al. (1983)

ND

mixed taiga spp.

0.48

550

-4.5

24

6. French (1988)

Humus-iron podzol on a granitic till

Calluna vulgaris

ND

725

6

40, 160, 400

7. Gill and Lavender (1982)

Hembre and Astoria silt loam

Western hemlock

1.94

1290

9

336

8. Hobbie (2000)

Tephra on pahaohoe lava

mixed mesic forest

0.28

2500

16

100

9. Hobbie and Vitousek (2000)

Tephra overlying lava

mixed mesic forest

0.1

2500

16

100

10. Hunt et al. (1988)

Cryoboroll or Ustic haplargid of sandy loam

Blue grama, wheatgrass or Lodgepole pine

11.34

310, 600

3, 7

154

11. Magill and Aber (1998)

Typic dystrochrepts of stony to sandy loam

mixed forest

8

1120

7

50, 150

12. Pastor et al. (1987)

Typic or alfic udipsamments of Sartell sand

mosaic of ecotypes

12.13

624

9

35, 99, 284

13. Prescott (1995)

Orthohumo-ferric podzol of sandy texture

Jack pine and mixed hardwood

ND

850

2.5

84, 500

14. Prescott et al. (1992)

Eutric brunisols

Mixed pine forest

ND

660

2

160

15. Prescott et al. (1999)

Brunisolic gray luvisols, orthic luvic gleysol

Trembling aspen

ND

467

2

200

16. Seastedt and Crossley (1983)

Typic and humic hapludults

Oak-hickory forest

11.05

1000

11

25

17. Theodorou and Bowen (1990)

Orthic podzol of Aeolian podzolized sand

ND

ND

720

15

100

18. Titus and Malcolm (1987)

post-glacial peaty gley

Sitka spruce

ND

1300

7.5

150

19. Will et al. (1983)

Pumice of Kaingaroa silty sand

Pinus radiata

ND

1470

10.7

200

Laboratory incubations

           

20. Frey, unpublished data

Sand

None

ND

Field capacity

24

2.8, 14, 28.7

21. Magill and Aber (2000)

Typic dystrochrepts; stony to sandy loam

Mixed hardwood

17.91

1120

21.5

50

22. Rai and Srivastava (1982)

ND

ND

ND

ND

29.5

150

23. Thirukkumaran et al. (2000)

Orthic eutric brunisols of sandy texture

Lodgepole pine

ND

850

15

188, 300

24. Vestgarden (2001)

ND

Scots pine

17.5

Field moist

15

30, 90

   Notes: ND = no data provided; MAP = mean annual precipitation; MAT = mean annual temperature. For the laboratory studies, the incubation temperature and moisture content are given instead of MAP and MAT.



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