极端干旱区沙土掩埋对凋落物分解速率及盐分含量动态的影响

范琳杰, 李成道, 李向义, Henry J. SUN, 林丽莎, 刘波

Effects of sand burial on litter decomposition rate and salt content dynamics in an extremely arid region

Fan Lin-Jie, LI Cheng-Dao, LI Xiang-Yi, Henry J. SUN, LIN Li-Sha, LIU Bo

表1 极端干旱区3种叶凋落物的初始化学组成(平均值±标准误)

Table 1 Initial leaf litter chemical composition of the three species in extremely arid region (mean ± SE)

物种 Species	C (g·kg^-1)	N (g·kg^-1)	C:N	纤维素 Cellulose (%)	半纤维素 Semi-cellulose (%)	木质素 Lignin (%)	水溶性盐 Water-soluble salt (%)
花花柴 Karelinia caspia	367.4 ± 1.07^b	4.65 ± 0.07^b	79.07 ± 1.20^b	24.9 ± 1.4^b	14.3 ± 1.9^a	14.7 ± 0.8^a	18.1 ± 0.6^a
骆驼刺 Alhagi sparsifolia	419.4 ± 0.58^a	11.75 ± 0.60^a	35.87 ± 1.83^c	28.1 ± 0.7^b	2.8 ± 0.3^b	10.7 ± 0.3^b	11.8 ± 0.3^b
胡杨 Populus euphratica	413.8 ± 0.70^a	3.57 ± 0.24^b	116.94 ± 7.68^a	35.7 ± 0.2^a	14.2 ± 1.2^a	12.9 ± 1.3^a	5.5 ± 0.1^c