开垦对科尔沁沙地土壤团聚体分布及稳定性的影响

曹立悦, 李玉霖, 詹瑾, 石丽娜

Effects of tillage on distribution and stability of soil aggregates in Horqin Sandy Land

Liyue Cao, Yulin Li, Jin Zhan, Lina Shi

表2 各粒级水稳性团聚体含量与团聚体稳定性指标的相关性

Table 2 Correlation between the content of water-stable aggregates of each particle size and aggregate stability indexes

	>1 mm	1—0.5 mm	0.5—0.25 mm	<0.25 mm	W_0.25	MWD	GMD	D	K
>1 mm	1
1—0.5 mm	-0.204	1
0.5—0.25 mm	-0.530^**	0.298	1
<0.25 mm	-0.961^**	-0.024	0.335	1
W_0.25	0.961^**	0.024	-0.335	-1.000^**	1
MWD	0.999^**	-0.164	-0.511^*	-0.972^**	0.972^**	1
GMD	0.857^**	-0.090	-0.493^*	-0.963^**	0.963^**	0.968^**	1
D	-0.987^**	0.108	0.508^*	0.969^**	-0.969^**	-0.990^**	-0.967^**	1
K	-0.982^**	-0.253	0.267	0.979^**	-0.979^**	-0.987^**	-0.958^**	0.977^**	1