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Table 2 CNP stoichiometry of particulate and dissolved organic matter

From: C:N:P stoichiometry of particulate and dissolved organic matter in river waters and changes during decomposition

Total organic matter   TOC TON TOP C:N N(%) C:P P(%) N:P
Mean 4430 1667 63 3.10 17 181 0.64 59
Median 3980 1560 39 2.98 18 263 0.44 89
SD 2920 984 84 3.46 15 90 1.29 26
Total organic matter after 20 days decomposition   TOC TON TOP C:N N(%) C:P P(%) N:P
Mean 3080 894 38 4.02 13 209 0.56 52
Median 2970 1030 26 3.37 16 295 0.39 88
SD 1220 337 47 4.22 12 67 1.73 16
Particulate organic matter   POC PON POP C:N N(%) C:P P(%) N:P
Mean 1750 864 50 2.36 22 90 1.29 38
Median 1350 680 29 2.32 23 120 0.97 52
SD 2180 592 78 4.30 12 72 1.61 17
Labile particulate organic matter   LPOC LPON LPOP C:N N(%) C:P P(%) N:P
Mean 710 447 17 1.85 28 108 1.08 58
Median 460 310 9 1.73 30 132 0.88 76
SD 1290 382 27 3.94 13 123 0.94 31
Recalcitrant particulate organic matter   RPOC RPON RPOP C:N N(%) C:P P(%) N:P
Mean 930 407 33 2.67 20 73 1.60 27
Median 690 240 17 3.36 16 105 1.11 31
SD 1150 455 55 2.95 18 54 2.15 18
Dissolved organic matter   DOC DON DOP C:N N(%) C:P P(%) N:P
Mean 2680 838 13 3.73 14 532 0.22 143
Median 2280 780 8 3.41 15 735 0.16 216
SD 1350 793 21 1.99 26 166 0.70 84
Labile dissolved organic matter   LDOC LDON LDOP C:N N(%) C:P P(%) N:P
Mean 640 326 8 2.29 23 206 0.56 90
Median 550 220 4 2.92 18 355 0.33 122
SD 410 281 10 1.70 31 106 1.10 62
Recalcitrant dissolved organic matter   RDOC RDON RDOP C:N N(%) C:P P(%) N:P
Mean 1800 511 5 4.11 13 929 0.13 226
Median 1540 410 4 4.38 12 993 0.12 227
SD 970 703 4 1.61 33 626 0.19 389
  1. Concentrations (mg m−3) of total organic carbon (TOC), total organic nitrogen (TON), and total organic phosphorus (TOP); POC, DOC, POP, DOP, PON, and DON, and their labile and recalcitrant fractions in the studied rivers (n = 197)