地膜覆盖麦田土壤有机碳矿化特征及其温度敏感性

曹寒冰,谢钧宇,刘菲,高健永,王楚涵,王仁杰,谢英荷,李廷亮

Mineralization Characteristics of Soil Organic Carbon and Its Temperature Sensitivity in Wheat Field Under Film Mulching

CAO HanBing,XIE JunYu,LIU Fei,GAO JianYong,WANG ChuHan,WANG RenJie,XIE YingHe,LI TingLiang

表7 长期不同覆膜处理下土壤有机碳库矿化参数

Table 7 Mineralization parameters of soil organic carbon pool under long-term different film mulching measures

培养温度 Incubation temperature (℃)	矿化参数 Mineralization parameters	处理 Treatment
培养温度 Incubation temperature (℃)	矿化参数 Mineralization parameters	FP	MF	RF	FH
15	Ca (g·kg^-1)	1.552	0.631	0.461	0.329
	Ka (d^-1)	0.300	0.392	0.301	0.242 a
	Cs (g·kg^-1)	2.319b	34.331a	40.624a	53.517aB
	Ks (d^-1)	0.0121A	0.0025	0.0119	0.0033
	R²	0.981	0.990	0.988	0.995
25	Ca (g·kg^-1)	0.773	0.775	1.008	0.994
	Ka (d^-1)	0.276	0.294	0.229	0.209
	Cs (g·kg^-1)	41.307b	82.268ab	72.154ab	103.473aA
	Ks (d^-1)	0.0003B	0.0004	0.0003	0.0002
	R²	0.974	0.981	0.986	0.987
35	Ca (g·kg^-1)	0.599	0.748	0.793	1.001
	Ka (d^-1)	0.434	0.354	0.262	0.245
	Cs (g·kg^-1)	50.893b	90.210ab	101.647a	109.849aA
	Ks (d^-1)	0.0011AB	0.0004	0.0003	0.0004
	R²	0.972	0.990	0.988	0.992