高寒森林倒木在不同分解阶段的质量变化

常晨晖, 吴福忠, 杨万勤, 谭波, 肖洒, 李俊, 苟小林

Changes in log quality at different decay stages in an alpine forest

CHANG Chen-Hui,WU Fu-Zhong,YANG Wan-Qin,TAN Bo,XIAO Sa,LI Jun,GOU Xiao-Lin

表4 岷江冷杉倒木在不同分解阶段木质素:N, 木质素:P和纤维素:N, 纤维素:P变化特征(平均值±标准偏差, n = 3)

Table 4 Characteristics of lignin:N, lignin:P, cellulose:N and cellulose:P in logs of Abies faxoniana at different decay stages (mean ± SD, n = 3)

	组分 Component	I	II	III	IV	V
木质素:N Lignin:N	心材 Heartwood	181 ± 48^ab	179 ± 83^ab	112 ± 52^a	244 ± 44^b	224 ± 95^ab
	边材 Sapwood	218 ± 57^a	773 ± 986^a	143 ± 34^a	237 ± 84^a	212 ± 179^a
	树皮 Bark	61 ± 16^a	66 ± 19^a	78 ± 19^a	52 ± 38^a	44 ± 15^a
木质素:P Lignin:P	心材 Heartwood	2 882 ± 647^a	3 161 ± 784^a	9 435 ± 577^b	4 609 ± 353^c	5 200 ± 1 259^c
	边材 Sapwood	24 244 ± 4 849^a	10 410 ± 5 464^a	3 028 ± 1 005^a	4 125 ± 789^a	3 824 ± 506^a
	树皮 Bark	1 643 ± 368^a	3 367 ± 176^a	2 655 ± 165^a	2 022 ± 1 402^a	2 882 ± 309^a
纤维素:N Cellulose:N	心材 Heartwood	276 ± 27^a	248 ± 31^ab	77 ± 52 ^c	183 ± 51^bd	100 ± 62^cd
	边材 Sapwood	228 ± 80^a	864 ± 1 167^a	119 ± 28^a	172 ± 21^a	72 ± 35^a
	树皮 Bark	31 ± 6^a	23 ± 7^a	36 ± 9^a	11 ± 4^a	17 ± 11^a
纤维素:P Cellulose:P	心材 Heartwood	4 403 ± 214^ab	4 701 ± 842^a	6 355 ± 3 463^b	3 417 ± 551^ab	2 102 ± 201^a
	边材 Sapwood	24 771 ± 3 043^a	11 068 ± 6 874^a	2 498 ± 712^a	3 106 ± 479^a	1 519 ± 372^a
	树皮 Bark	836 ± 169^a	1 187 ± 79^a	1 235 ± 124^a	441 ± 262^a	1 016 ± 437^a