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| 秸秆还田循环利用对土壤碳库的影响研究 | |
| 引用本文： | 刘定辉,蒲波,陈尚洪,朱钟麟,舒丽. 秸秆还田循环利用对土壤碳库的影响研究[J]. 西南农业学报, 2008, 21(5) |
| 作者姓名： | 刘定辉 蒲波 陈尚洪 朱钟麟 舒丽 |
| 作者单位： | 1. 农业部长江上游农业资源与环境重点开放实验室,四川省农科院土肥所,四川成都610066 2. 四川省农业厅,四川成都,610041 3. 农业部长江上游农业资源与环境重点开放实验室,四川省农科院土肥所,四川成都610066;四川农业大学资源环境学院,四川雅安625014 |
| 摘 要： | 为了阐明秸秆还田对土壤质量的影响机理,以冲积土和紫色土稻田为研究对象,通过4年定位试验研究了秸秆还田对稻田土壤活性碳(CA)、微生物碳(CMB)、矿化碳(CM)和碳库管理指数(CPMI)及土壤NPK养分的影响。结果表明:秸秆还田提高了土壤不同形态碳素含量和碳库管理指数及养分含量;旋耕比免耕更能改善土壤有效碳库质量,CA、CMB、CM和CPMI分别提高5.81%~31.76%、33.87%~39.33%、15.42%~21.56%和4.03%~21.13%。 |
| 关 键 词： | 秸秆还田 免耕 土壤养份 碳素形态 碳库管理指数 |
Effect of crop straw returning to paddy soil on soil carbon pool in Sichuan basin |
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| LIU Ding-hui,PU Bo,CHEN Shang-hong,ZHU Zhong-lin,SHU Li. Effect of crop straw returning to paddy soil on soil carbon pool in Sichuan basin[J]. Southwest China Journal of Agricultural Sciences, 2008, 21(5) | |
| Authors: | LIU Ding-hui PU Bo CHEN Shang-hong ZHU Zhong-lin SHU Li |
| Abstract: | To clarify the mechanism of effect of crop straw returning to paddy soil on soil quality,different available carbons and CPMI and soil nutrient were discussed in this document through four years fixed field experiment on alluvium and purple paddy soil in Sichuan Basin.The results indicated that straw-mulching treatment increased the content of soil organic matter,total N,P,K,available N,P,K,different available carbons and CPMI.Treatment of straw-mulching-spiral-tillage could improve the quality of available carbon cool compared with straw-mulching-no-tillage,and CA,CMB,CM and CPMI were increased by 5.81 %-31.76 %,33.87 %-39.33 %,15.42 %-21.56 % and 4.03 %-21.13 %,respectively. |
| Keywords: | straw-mulching different carbons fractions carbon pool management index |
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