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| 耕作方式对紫色水稻土活性有机碳的影响 | |
| 引用本文： | 吴艳,郝庆菊,江长胜. 耕作方式对紫色水稻土活性有机碳的影响[J]. 地理科学, 2011, 31(4): 485-489. DOI: 10.13249/j.cnki.sgs.2011.04.485 |
| 作者姓名： | 吴艳 郝庆菊 江长胜 |
| 作者单位： | 1. 西南大学三峡库区生态环境教育部重点实验室 西南大学资源环境学院, 重庆 400715;2. 重庆市农业资源与环境研究重点实验室, 重庆 400716 |
| 基金项目： | 国家自然科学基金项目(40805050和41005069); 教育部博士点新教师基金(200806351014); 中央高校基本科研业务费专项 |
| 摘 要： | 以位于西南大学试验农场的紫色土长期免耕试验田为研究对象,探讨不同耕作方式-冬水田平作(DP)、水旱轮作(SH)、垄作免耕(LM)、厢作免耕(XM)和垄作翻耕(LF)对紫色水稻土总有机碳、活性有机碳及稳态碳的影响。结果表明,在0~60 cm的土壤深度内,不同耕作方式下总有机碳的平均含量为LM(22.74 g/kg)>DP(14.57 g/kg)>XM(13.73 g/kg)>LF(13.10 g/kg)>SH(11.92 g/kg);活性有机碳的平均含量为DP(3.67 g/kg)>LF(3.49 g/kg)>LM(3.28 g/kg)>XM(3.17 g/kg)>SH(2.69 g/kg);稳态碳占土壤总有机碳的百分比为LM (85%)>SH (78%)>XM (77%)>LF (75%)>DP (74%)。长期垄作免耕具有明显的碳截存效应和良好的固碳能力。 |
| 关 键 词： | 耕作制度 总有机碳 活性有机碳 稳态碳 紫色水稻土 |
| 收稿时间： | 2010-09-12 |
| 修稿时间： | 2010-12-09 |
Tillage Effects on Soil Active Organic Carbon in Purple Paddy Soil |
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| WU Yan,HAO Qing-ju,JIANG Chang-sheng. Tillage Effects on Soil Active Organic Carbon in Purple Paddy Soil[J]. Scientia Geographica Sinica, 2011, 31(4): 485-489. DOI: 10.13249/j.cnki.sgs.2011.04.485 | |
| Authors: | WU Yan HAO Qing-ju JIANG Chang-sheng |
| Affiliation: | 1. Key Laboratory of Eco-environments in Three Gorges Reservoir Region of Ministry of Education, College of Resources and Environment, Southwest University, Chongqing, 400715, China;2. Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing 400716, China |
| Abstract: | The effects of tillage system on total soil organic carbon,soil active organic carbon and soil stable organic carbon were studied in a long-term field experimental station in Chongqing,China.The content of total soil organic carbon in the 0-60 cm soil layers under different tillage systems was LM: no-till and ridge culture with rotation of rice and rape system(22.74 g/kg) >DP: conventional tillage with rice only system(14.57 g/kg) >XM: no-till and plain culture with rotation of rice and rape system(13.73 g/... |
| Keywords: | tillage system total soil organic carbon soil active organic carbon soil stable organic carbon purple paddy soil |
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