油松人工林火烧迹地早期土壤入渗动态

秦倩倩, 邱聪, 郑大柽, 刘艳红

Soil infiltration dynamics in early period of a post-fire Pinus tabulaeformis plantation

QIN Qian-Qian, QIU Cong, ZHENG Da-Cheng, LIU Yan-Hong

表1 油松人工林土壤结构性质的三因素方差分析

Table 1 Three-way ANOVA analysis of soil structural properties in a Pinus tabulaeformis plantation

指标 Index		火烧干扰 Fire disturbance (df = 1)	土壤深度 Soil depth (df = 3)	时间 Time (df = 7)	火烧×深度 Fire × Depth (df = 3)	火烧×时间 Fire × Time (df = 7)	深度×时间 Depth × Time (df = 21)	火烧×深度×时间 Fire × Depth × Time (df = 21)
机械性团聚体含量 Mechanical aggregate content	>5 mm	13.09^***	2.76^*	37.85^***	3.85^*	31.49^***	8.26^***	5.33^***
	2-5 mm	22.73^***	10.87^***	168.02^***	13.63^***	26.08^***	5.44^***	3.04^***
	1-2 mm	152.67^***	4.10^**	73.87^***	55.90^***	7.32^***	4.75^***	5.43^***
	0.5-1 mm	250.59^***	88.04^***	248.94^***	19.25^***	81.65^***	45.44^***	36.07^***
	0.25-0.5 mm	75.74^***	12.68^***	144.97^***	11.12^***	27.16^***	7.55^***	5.86^***
	<0.25 mm	220.90^***	5.56^**	505.52^***	98.28^***	43.76^***	14.44^***	10.70^***
初始含水率 Initial water content		7.04^**	16.99^***	107.52^***	45.01^***	136.38^***	8.40^***	12.91^***
饱和持水量 Saturation moisture capacity		236.75^***	6.13^**	11.61^***	5.71^**	1.07	2.61^**	2.59^**
毛管持水量 Capillary moisture capacity		144.93^***	7.43^***	9.18^***	1.55	1.29	1.89^*	1.69
田间持水量 Field moisture capacity		147.69^***	6.24^**	37.18^***	0.68	1.46	3.42^***	1.53
容重 Bulk density		290.39^***	4.49^**	5.80^***	5.45^**	3.44^**	2.47^**	4.49^***
总孔隙度 Total porosity		90.39^***	2.03	18.35^***	7.12^***	3.56^**	2.17^*	0.93
毛管孔隙度 Capillary porosity		70.17^***	6.13^**	14.13^***	2.79^*	6.00^***	2.51^**	1.28
非毛管孔隙度 Non-capillary porosity		33.90^***	26.91^***	39.63^***	17.38^***	10.96^***	3.36^***	3.88^***
有机质含量 Organic matter content		196.99^***	100.15^***	3.48^**	1.82	1.99	1.06	0.71