| 黑碳不同添加量对土壤有机碳矿化的影响 |
| |
| 引用本文： | 李淑香,李芳芳.黑碳不同添加量对土壤有机碳矿化的影响[J].安徽农业科学,2011,39(36):22395-22396,22500. |
| |
| 作者姓名： | 李淑香 李芳芳 |
| |
| 作者单位： | 福建师范大学地理科学学院,福建福州,350007 |
| |
| 基金项目： | 福建省自然科学基金项目(2010J01248) |
| |
| 摘 要： | 目的]探讨黑碳不同添加量对土壤有机碳矿化的影响。方法]将350℃下制备的黑碳分别以0％（BCO）、1％（BCl）、2％（BC2）、3％（BC3）、4％（BC4）和5％（BC5）6个不同用量添加到土壤中，恒温25℃培养56d。结果]在整个培养过程中，土壤CO：释放速率和土壤gO：-C累积释放量均表现为BC5〉BC4〉BC3〉BC2〉BCl。培养至56d，BC分解率介于0．24％～2．12％。结论]黑碳对维持土壤碳库平衡具有重要的作用。．
|
| 关 键 词： | 黑碳 添加量 碳矿化 |
Effects of Different Addition Rate of Black Carbon on Soil Organic Carbon Mineralization |
| |
| Institution: | LI Shu-xiang et al (College of Geographical Sciences,Fujian Normal University,Fuzhou,Fujian 350007) |
| |
| Abstract: | Objective] The study aimed to study the effects of addition rate of black carbon on soil organic carbon mineralization.Method] BC was produced by charring the rice straw under 350 ℃ and was mixed into soil with different addition rate(BC0,BC1,BC2,BC3,BC4,BC5,respectively),and incubated for 56 days at 25 ℃.Results] During the whole incubation period,soil CO_2 releasing rate and the accumulation amount of soil CO_2-C changed with the following order: BC5>BC4>BC3>BC2>BC1.After 56 days of incubation,the decomposition rate of black carbon ranged from 0.24% to 2.12%.Conclusion] Black carbon was of great importance in maintaining the balance of soil carbon pool. |
| |
| Keywords: | Black carbon Different addition rate Carbon mineralization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
