TABLE 4.

Changes in the cellulose and lignin degradation rates (k, g⋅g^–1⋅day^–1) of the leaves of bald cypress, Chinese willow, and the mixed-leaf samples under different water treatments.

Foliage type	Water treatment	Cellulose		Lignin
		k′	R2	k′	R2
Bald cypress	CK	2.43	0.62	4.62	0.80
	SS	4.65	0.76	6.89	0.92
	DS	4.12	0.73	5.85	0.85
Chinese willow	CK	5.57	0.80	3.89	0.83
	SS	9.53	0.89	5.36	0.75
	DS	6.91	0.81	4.94	0.78
Mixtures	CK	4.07	0.84	4.67	0.89
	SS	7.66	0.89	5.78	0.80
	DS	6.42	0.85	6.25	0.79

CK, SS, and DS represent no submergence, shallow submergence, and deep submergence, respectively. k′, k × 10³; all P < 0.001.