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| 耕作方式对潮土有机碳及碳库管理指数的影响 | |
| 引用本文： | 姬艳艳,张贵龙,张瑞,刘玉升,杨殿林.耕作方式对潮土有机碳及碳库管理指数的影响[J].中国农学通报,2012,28(15):73-77. |
| 作者姓名： | 姬艳艳 张贵龙 张瑞 刘玉升 杨殿林 |
| 作者单位： | 1. 山东农业大学植物保护学院,山东泰安271018;农业部环境保护科研监测所/农业部转基因生物生态环境安全监督检验测试中心,天津300191 2. 农业部环境保护科研监测所/农业部转基因生物生态环境安全监督检验测试中心,天津,300191 3. 农业部环境保护科研监测所/农业部转基因生物生态环境安全监督检验测试中心,天津300191;山西农业大学生命科学院,山西太谷030801 4. 山东农业大学植物保护学院,山东泰安,271018 |
| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金(农业部环境保护科研监测所) |
| 摘 要： | 为了探明华北潮土区农田耕作方式对土壤有机碳库及碳库管理指数的影响,应用田间试验,研究撂荒、翻耕、免耕和旋耕4种方式下,耕层(0～20 cm)土壤总有机碳和不同态活性有机碳含量的变化,对比分析不同耕作方式对土壤碳库管理指数的影响。结果表明:免耕和旋耕均有利于土壤有机碳累积,与撂荒相比,免耕和旋耕处理土壤总有机碳含量分别增加26.42%和12.52%;土壤活性有机碳对不同耕作措施的响应不同,与撂荒相比,翻耕、免耕和旋耕处理,土壤易氧化有机碳含量分别提高23.72%,44.34%和27.84%,水溶性有机碳含量分别降低了24.11%,24.56%和43.89%。土壤微生物量碳含量仅在免耕方式下提高了109%,其他耕作方式下没有显著变化;免耕、旋耕和翻耕处理下,土壤碳库活度、碳库指数均显著增加,碳库管理指数分别比撂荒处理提高47.82%,27.18%和30.47%,可见耕作对优化土壤碳库管理具有显著促进作用。 |
| 关 键 词： | 潮土 耕作方式 土壤有机碳 活性有机碳 碳库管理指数 |
| 收稿时间： | 2011/11/22 0:00:00 |
| 修稿时间： | 1/9/2012 12:00:00 AM |
Effects of Different Tillage Modes on Soil Organic Carbon and Carbon Pool Management Index in Fluvo-aquic Soils |
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| Ji Yanyan , Zhang Guilong , Zhang Rui , Liu Yusheng , Yang Dianlin.Effects of Different Tillage Modes on Soil Organic Carbon and Carbon Pool Management Index in Fluvo-aquic Soils[J].Chinese Agricultural Science Bulletin,2012,28(15):73-77. | |
| Authors: | Ji Yanyan Zhang Guilong Zhang Rui Liu Yusheng Yang Dianlin |
| Institution: | 1Plant Protection College,Shandong Agricultural University,Tai’an Shandong 271018;2Agro-Environmental Protection Institution,Eco-safety Supervision/Inspection & Testing Center of Genetically Modified Organisms,Ministry of Agriculture,Tianjin 300191;3College of Life Science,Shanxi Agriculture University,Taigu Shanxi 030801) |
| Abstract: | Applied field trials,four tillage patterns including abandoned,tilled,no-tillage and rotary were designed to study the effects of different tillage modes on soil organic carbon and carbon management index(CMI) in North China Plain.The change in the SOC contents and different form labile organic carbon in these four different tillage modes were studied.Then contrastive analyzed the effect of different tillage modes on carbon management index.The results showed that,no-tillage and rotary were both beneficial to the accumulation of SOC.Compared with abandoned,total organic carbon under no-tillage and rotary respectively increased 26.42% and 12.52%.The active organic carbon responded to different tillage modes in different ways.Compared with abandoned,when took the mode of tilled,no-tillage and rotary,easily oxidized organic carbon respectively increased 23.72%,44.34%,27.84%,water oxidized organic carbon respectively increased 24.11%,24.56%,43.89%.Soil microbial biomass increased 109% under no-tillage.There were no significant change under other tillage modes,soil cultivation had promotion effect to optimize carbon management index,the mode of tilled,no-tillage and rotary had respective increased at 47.82%,27.18% and 30.47%.It conclnded that different tillage modes had significant effect on organic carbon library activities in fluvo-aquic soils. |
| Keywords: | fluvo-aquic soils tillage modes soil organic carbon labile organic carbon carbon pool management index |
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