Table S3Plant biomass and plant N pool infifteen plant communities.

Plant community / Above-
ground biomass
(g m-2) / Below-
ground biomass
(g m-2) / Total biomass
(g m-2) / Above-
ground
N pool
(g m-2) / Below-
ground
N pool
(g m-2) / Total N pool
(g m-2)
Rj / 828.95cde / 487.37b / 1380.12cdef / 18.38bcd / 3.41cd / 21.79bcd
Oj / 824.14bcd / 767.45c / 1648.76fg / 23.95cd / 6.06ef / 30.01de
Pa / 204.21a / 75.75a / 279.96a / 5.26a / 1.10a / 6.37a
Je / 334.79ab / 105.84a / 452.47a / 4.71a / 1.50ab / 6.22a
Rj×Oj / 1089.81e / 682.05bc / 1771.87g / 32.3d / 6.31ef / 38.60e
Rj×Pa / 682.29bcd / 397.11b / 1175.63bcd / 11.61b / 4.4cde / 16.01b
Rj×Je / 581b / 494.69b / 1075.69bc / 15.30bc / 4.03cd / 19.33bc
Oj×Pa / 884.85cde / 749.96c / 1634.81fg / 5.00a / 1.49ab / 27.58cde
Oj×Je / 849.97bcde / 652.56bc / 1533.00defg / 24.09cd / 7.97f / 31.68de
Pa×Je / 292.29a / 102.54a / 394.83a / 21.92cd / 5.66f / 6.49a
Rj×Oj×Pa / 924.77de / 712.00c / 1636.77fg / 25.68d / 7.97f / 33.65de
Rj×Oj×Je / 940.49de / 595.64bc / 1551.59efg / 25.32d / 5.1ddef / 30.42de
Rj×Pa×Je / 596.19b / 255.38a / 851.57b / 14.38b / 2.44bc / 16.82b
Oj×Pa×Je / 635.56bc / 572.26bc / 1227.64cde / 16.17bcd / 5.45def / 21.63bcd
Rj×Oj×Pa×Je / 907.58de / 521.12b / 1374.66cdef / 24.16cd / 4.11de / 28.28cde
P-value / < 0.001 / < 0.001 / < 0.001 / < 0.001 / < 0.001 / < 0.001

Note:Rj:Rumexjaponicus;Oj: Oenanthejavanica; Pa:Phalarisarundinacea; Je:Juncus effuses. Different letters within columns indicate significant difference by applying the least significant difference (LSD) test at P < 0.05.