黑土旱地改稻田土壤水稳性团聚体有机碳和全氮的变化特征
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马原,迟美静,张玉玲,范庆峰,虞娜,邹洪涛
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Change Characteristics of Organic Carbon and Total Nitrogen in Water-Stable Aggregate After Conversion from Upland to Paddy Field in Black Soil
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Yuan MA,MeiJing CHI,YuLing ZHANG,QingFeng FAN,Na YU,HongTao ZOU
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表5 旱地改稻田后不同年限土壤团聚体中的δ13C和δ15N
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Table 5 δ13C and δ 15N of soil aggregate after conversion from upland to paddy field for different years
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年限
Year (a) | 土层深度
Soil depth (cm) | >2 mm | 0.25 mm | 0.25-0.053 mm | <0.053 mm | | δ13C (‰) | δ15N (‰) | δ13C (‰) | δ15N (‰) | δ13C (‰) | δ15N (‰) | δ13C (‰) | δ15N (‰) | | 0 | 0-20 | -24.1±0.2 | 6.5±0.2 | -24.1±0.1 | 6.7±0.4 | -24.1±0.2 | 6.7±0.3ab | -24.1±0.2 | 7.0±0.2 | | 20-40 | -24.2±0.1 | 6.8±0.1 | -24.1±0.1 | 7.3±0.2 | -23.9±0.1 | 7.4±0.2ab | -23.8±0.2 | 7.4±0.0 | | 40-60 | -24.1±0.1 | 6.2±0.3 | -23.7±0.1 | 7.0±0.1 | -23.8±0.0 | 6.6±0.3ab | -23.8±0.1 | 7.0±0.3 | | 3 | 0-20 | -23.7±0.2 | 5.4±0.5 | -23.6±0.1 | 6.2±0.4 | -23.3±0.1 | 6.3±0.3ab | -23.2±0.1 | 6.3±0.2 | | 20-40 | -23.7±0.3 | 6.1±0.4 | -23.4±0.3 | 6.3±0.1 | -23.3±0.2 | 6.6±0.2ab | -23.0±0.3 | 6.5±0.3 | | 40-60 | -23.7±0.6 | 4.7±0.6 | -23.2±0.4 | 5.8±0.3 | -23.0±0.4 | 6.1±0.2ab | -23.1±0.3 | 6.0±0.3 | | 5 | 0-20 | -24.3±0.3 | 6.9±0.5 | -24.3±0.2 | 6.7±0.4 | -24.2±0.2 | 6.8±0.2ab | -24.0±0.1 | 6.0±0.3 | | 20-40 | -24.5±0.1 | 6.2±0.1 | -24.3±0.1 | 6.7±0.1 | -24.1±0.1 | 6.7±0.0ab | -24.0±0.1 | 6.8±0.1 | | 40-60 | -24.6±0.1 | 5.9±0.3 | -23.9±0.2 | 6.6±0.2 | -23.9±0.2 | 7.0±0.3ab | -23.6±0.1 | 6.7±0.2 | | 10 | 0-20 | -24.7±0.1 | 6.0±0.4 | -24.7±0.1 | 5.7±0.3 | -24.3±0.2 | 6.1±0.3ab | -24.1±0.2 | 6.1±0.2 | | 20-40 | -24.5±0.1 | 5.8±0.1 | -24.3±0.1 | 6.2±0.1 | -24.0±0.2 | 6.5±0.3ab | -23.9±0.2 | 6.4±0.1 | | 40-60 | -24.4±0.4 | 6.0±0.1 | -24.0±0.2 | 6.7±0.2 | --23.9±0.2 | 6.9±0.2ab | -23.8±0.1 | 7.0±0.2 | | 17 | 0-20 | -24.6±0.3 | 6.2±0.1 | -24.6±0.2 | 6.1±0.1 | -24.5±0.1 | 6.1±0.3b | -24.3±0.1 | 6.3±0.4 | | 20-40 | -24.2±0.1 | 6.3±0.2 | -23.9±0.1 | 6.6±0.2 | -23.9±0.1 | 6.7±0.1ab | -23.8±0.0 | 6.5±0.2 | | 40-60 | -24.5±0.3 | 6.5±0.1 | -24.0±0.3 | 7.0±0.1 | -24.1±0.2 | 7.0±0.1ab | -23.9±0.2 | 7.3±0.2 | | 20 | 0-20 | -24.7±0.1 | 6.2±0.1 | -24.5±0.1 | 6.4±0.1 | -24.2±0.1 | 6.7±0.1ab | -24.1±0.1 | 6.6±0.1 | | 20-40 | -23.8±0.4 | 6.5±0.3 | -24.0±0.2 | 6.9±0.3 | -24.0±0.2 | 7.1±0.2ab | -23.7±0.1 | 7.2±0.0 | | 40-60 | -23.9±0.1 | 7.0±00.3 | -23.8±0.2 | 7.0±0.2 | -23.7±0.2 | 7.1±0.2ab | -23.7±0.2 | 7.0±0.1 | | 25 | 0-20 | -24.7±0.3 | 5.7±0.1 | -24.6±0.1 | 6.0±0.2 | -24.3±0.2 | 6.2±0.2ab | -24.2±0.2 | 6.3±0.2 | | 20-40 | -24.2±0.3 | 6.6±0.2 | -24.0±0.3 | 6.9±0.1 | -23.9±0.4 | 7.5±0.5a | -23.8±0.3 | 7.7±0.2 | | 40-60 | -24.5±0.5 | 6.4±0.5 | -24.3±0.7 | 6.2±0.5 | -24.1±0.6 | 6.2±0.4ab | -23.9±0.6 | 6.2±0.4 | | 双因素方差分析的P值 P values of two-ways ANOVA | | 年限Year | 0.020* | 0.010** | 0.010** | 0.000*** | 0.000*** | 0.045* | 0.000*** | 0.020* | | 土层Soil depth | 0.280 ns | 0.490 ns | 0.000*** | 0.003** | 0.010** | 0.020** | 0.020* | 0.000*** | 年限×土层
Years×Soil depth | 0.690 ns | 0.100 ns | 0.810 ns | 0.132 ns | 0.970 ns | 0.035* | 0.950 ns | 0.130 ns |
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