不同植物来源可溶性有机质对亚热带森林土壤酶活性的影响

梅孔灿, 程蕾, 张秋芳, 林开淼, 周嘉聪, 曾泉鑫, 吴玥, 徐建国, 周锦容, 陈岳民

Effects of dissolved organic matter from different plant sources on soil enzyme activities in subtropical forests

MEI Kong-Can, CHENG Lei, ZHANG Qiu-Fang, LIN Kai-Miao, ZHOU Jia-Cong, ZENG Quan-Xin, WU Yue, XU Jian-Guo, ZHOU Jin-Rong, CHEN Yue-Min

表3 可溶性有机质(DOM)输入对土壤理化性质的影响(平均值±标准偏差)

Table 3 Effects of dissolved organic matter (DOM) addition on physicochemical properties of the soil (mean ± SD)

处理 Treatment	土壤总有机碳含量 Total soil organic carbon content (g·kg^-1)	总氮含量 Total soil nitrogen content (g·kg^-1)	碳氮比 C:N	酸碱度 pH	溶解有机碳含量 Dissolved organic carbon content (mg·kg^-1)	溶解有机氮含量 Dissolved organic nitrogen content (mg·kg^-1)
CT	75.96 ± 0.14^a	4.72 ± 0.13^ab	16.11 ± 0.45^ab	4.49 ± 0.02^b	32.65 ± 12.20^b	5.39 ± 1.32^b
CL	70.94 ± 2.17^a	4.26 ± 0.23^b	16.69 ± 0.72^a	4.70 ± 0.12^a	139.02 ± 24.90^a	26.95 ± 8.65^a
SL	70.55 ± 1.77^a	4.53 ± 0.10^ab	15.58 ± 0.07^b	4.72 ± 0.09^a	154.06 ± 56.81^a	9.42 ± 1.44^b
PL	75.63 ± 5.22^a	4.89 ± 0.40^a	15.48 ± 0.31^b	4.59 ± 0.12^ab	110.24 ± 20.41^a	6.51 ± 1.78^b
p	0.10	0.06	0.04	0.06	0.01	<0.01