Table 1. Mean decay class 1 fine woody debris (FWD) and coarse woody debris (CWD) nutrient concentrations pooled across species and FWD nutrient concentrations for each species by decay class. Standard errors are in parentheses. Carbon is presented in percent total (%), while all other nutrients are in mg kg–1. Sample sizes are n = 50 for decay class 1 FWD and CWD nutrient concentrations within each group and n = 10 for FWD nutrient concentrations within each species/decay class combination. Within each row, values with similar letters are not significantly different (p > 0.05) for decay class 1 FWD and CWD nutrient concentrations pooled across species and separately for FWD nutrient concentrations by species and decay class.
Nutrient Size Species
FWD CWD Populus tremuloides Acer rubrum Betula papyrifera Fraxinus nigra Abies balsamea
Decay class Decay class Decay class Decay class Decay class Decay class
1 1 2 1 2 1 2 1 2 1 2
C 50.9 (0.2)a 48.6 (0.2)b 50.8 (0.4)bc 51.1 (0.1)bc 49.5 (0.2)d 49.7 (0.2)d 52.2 (0.4)ab 53.5 (0.6)a 49.7 (0.1)d 50.5 (0.2)cd 52.1 (0.5)ab 51.8 (0.4)ab
N 1821 (334)a 275 (73)b 3583 (447)a 1622 (321)ab 378 (317)b 976 (356)ab 2365 (921)ab 3711 (1053)ab 1790 (849)ab 2486 (782)ab 991 (696)b 1570 (800)ab
P 465 (41)a 125.9 (7.5)b 649 (90)a 172 (15)d 325 (41)abcd 198 (24)cd 539 (111)ab 351 (40)abc 409 (102)abcd 211 (29)cd 403 (80)abc 330 (83)bcd
K 2336 (180)a 1704 (143)b 2555 (306)ab 718 (135)c 1424 (115)bc 754 (248)c 1526 (235)bc 842 (136)c 3984 (353)a 1459 (312)bc 2191 (351)ab 1601 (369)bc
Ca 5539 (390)a 3185 (247)b 8628 (951)a 7699 (1181)ab 4346 (644)bc 5333 (858)abc 4840 (477)abc 7829 (894)ab 5766 (425)abc 5653 (489)abc 4115 (958)c 5206 (1004)abc
Na 30.1 (1.8)a 26.0 (1.7)a 35.6 (3.0)ab 35.5 (4.3)ab 30.9 (3.9)ab 27.4 (3.9)ab 37.9 (4.4)a 40.6 (5.4)a 21.0 (3.9)b 30.8 (3.2)ab 25.2 (3.3)ab 35.3 (5.2)ab
Mg 558 (37)a 338 (16)b 866 (98)a 474 (34)b 405 (51)b 412 (48)b 500 (56)b 561 (76)ab 605 (57)ab 593 (89)ab 416 (56)b 576 (70)ab
Mn 101 (14)a 69.2 (8.5)a 25.5 (3.2)c 20.8 (3.1)c 222.7 (18.6)a 237.9 (39.4)a 144.5 (20.7)ab 200.9 (26.6)a 11.3 (1.5)c 20.2 (2.5)c 99.5 (31.8)b 256.7 (42.1)a
Al 21.9 (5.7)a 7.0 (1.2)b 8.6 (2.5)c 26.7 (8.6)bc 19.9 (6.4)bc 21.7 (4.2)abc 6.8 (1.7)c 36.9 (6.5)ab 15.4 (3.3)bc 43.0 (8.5)ab 58.6 (25.0)ab 110.3 (36.9)a
B 7.7 (0.5)a 3.4 (0.2)b 9.4 (0.9)abc 6.2 (0.8)bcd 7.7 (1.1)abcd 6.0 (0.8)bcd 5.7 (0.7)cd 6.6 (0.8)abcd 10.6 (1.2)ab 13.0 (2.9)a 5.1 (0.9)d 4.4 (0.8)d
Cu 3.8 (0.4)a 1.6 (0.1)b 6.4 (1.4)c 5.1 (0.9)bc 2.4 (0.2)a 2.8 (0.3)ab 2.9 (0.4)abc 4.0 (0.6)abc 4.1 (0.9)abc 5.3 (1.1)bc 3.0 (0.2)abc 3.0 (0.5)abc
Fe 27.1 (4.7)a 18.4 (2.8)b 16.9 (3.4)b 39.3 (11.3)ab 35.7 (6.0)ab 34.9 (6.1)ab 13.5 (3.0)b 46.6 (8.2)ab 30.0 (6.4)ab 76.7 (14.2)a 39.1 (21.3)ab 104.0 (38.9)a
Zn 56.6 (8.0)a 28.2 (3.8)b 87.9 (8.3)ab 88.7 (10.9)ab 16.2 (2.3)de 19.4 (2.6)cde 130.9 (18.4)a 173.4 (26.9)a 10.2 (3.2)e 14.0 (3.6)e 37.6 (11.6)cd 56.3 (18.8)bc