川西亚高山森林凋落物去除对土壤腐殖质动态的影响

刘谣, 焦泽彬, 谭波, 李晗, 王丽霞, 刘思凝, 游成铭, 徐振锋, 张丽

Litter removal effects on dynamics of soil humic substances in subalpine forests of western Sichuan, China

LIU Yao, JIAO Ze-Bin, TAN Bo, LI Han, WANG Li-Xia, LIU Si-Ning, YOU Cheng-Ming, XU Zhen-Feng, ZHANG Li

表4 川西亚高山森林不同凋落物处理下土壤腐殖质与土壤理化性质之间的相关性

Table 4 Correlations of soil humic substances with soil physical and chemical properties under different litter treatments in subalpine forests of western Sichuan

指标 Index	凋落物输入 Soil retained litter					凋落物去除 Soil removed litter
指标 Index	EHS	HA	FA	HA/FA	PQ	EHS	HA	FA	HA/FA	PQ
SWC	0.157	0.223	0.089	0.168	-0.021	0.564^**	0.355	0.472^*	-0.389^*	-0.018
pH	-0.122	-0.213	-0.068	0.023	0.025	-0.194	-0.139	-0.154	-0.004	0.179
TM	-0.493^**	-0.547^**	-0.338	0.005	0.007	-0.512^**	-0.432^*	-0.370	0.062	0.015
SOC	0.578^**	0.707^**	0.366	0.105	0.025	0.755^**	0.409^*	0.656^**	-0.399^*	-0.107
TN	0.414^*	0.513^**	0.257	0.181	-0.012	0.658^**	0.418^*	0.546^**	-0.185	-0.127
TP	0.338	0.218	0.315	-0.181	-0.156	0.314	0.387^*	0.182	0.218	-0.055