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6 温度和覆膜处理下土壤有机碳库矿化参数的双因素方差分析

Table 6 Two-factor variance analysis of SOC pool mineralization parameters under temperature and film mulching measures

变异来源 Source of variation 平方和 Sum of squares 自由度 Degree of freedom 均方 Mean square F值 F value P值 P value Ca 温度 Temperature (T) 0.1316 2 0.0658 0.2249 0.8004 覆膜 Film mulching (F) 0.3592 3 0.1197 0.4091 0.7480 温度×覆膜 T×F 2.7988 6 0.4665 1.5941 0.1960 Ka 温度 Temperature (T) 0.0348 2 0.0174 0.4279 0.6572 覆膜 Film mulching (F) 0.0842 3 0.0281 0.6900 0.5678 温度×覆膜T×F 0.0341 6 0.0057 0.1395 0.9893 Cs 温度 Temperature (T) 20103.4300 2 10051.7100 18.4349 0.0001 覆膜 Film mulching (F) 15772.3800 3 5257.4620 9.6422 0.0003 温度×覆膜T×F 649.0932 6 108.1822 0.1984 0.9737 Ks 温度 Temperature (T) 0.0004 2 0.0002 4.4409 0.0240 覆膜 Film mulching (F) 0.0001 3 0.0000 0.6656 0.5821 温度×覆膜 T×F 0.0002 6 0.0000 0.6096 0.7201