秸秆还田与化肥配施对汉中盆地稻麦轮作农田土壤固碳及经济效益的影响
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吴玉红,郝兴顺,田霄鸿,陈浩,张春辉,崔月贞,秦宇航
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Effect of straw returning combined with NPK fertilization on soil carbon sequestration and economic benefits under rice-wheat rotation in Hanzhong basin
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Yu-Hong WU,Xing-Shun HAO,Xiao-Hong TIAN,Hao CHEN,Chun-Hui ZHANG,Yue-Zhen CUI,Yu-Hang QIN
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表3 不同秸秆还田处理对土壤碳储量及碳库管理指数的影响
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Table 3 Effects of different straw return treatments on SCS and CPMI
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处理
Treatment | 0-15 cm | | 15-30 cm | | 0-30 cm | 容重
Soil bulk
density
(g cm-3) | 碳储量
SCS
(×103 kg hm-2) | 碳库管理
指数
CPMI | 容重
Soil bulk
density
(g cm-3) | 碳储量
SCS
(×103 kg hm-2) | 碳库管理
指数
CPMI | 碳储量
SCS
(×103 kg hm-2) | | SN+NPK | 1.39 | 21.71 c | 100.00 e | | 1.74 | 14.38 b | 100.00 c | | 36.20 | | S+NPK | 1.27 | 23.33 b | 152.49 b | | 1.67 | 14.61 b | 131.36 b | | 37.89 | | SD+NPK | 1.31 | 25.98 a | 164.07 a | | 1.73 | 16.95 a | 161.00 a | | 42.79 | | SD+85%NPK | 1.19 | 21.08 d | 148.37 c | | 1.64 | 11.94 c | 70.29 d | | 33.19 | | SD+70%NPK | 1.28 | 20.86 d | 131.47 d | | 1.66 | 11.77 c | 65.63 e | | 32.64 |
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