| 若尔盖高原草甸土与泥炭土氧化CH4研究 |
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| 引用本文： | 王长科,吕宪国,蔡祖聪,罗勇. 若尔盖高原草甸土与泥炭土氧化CH4研究[J]. 冰川冻土, 2007, 29(4): 584-588. DOI: 10.7522/j.issn.1000-0240.2007.0083 |
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| 作者姓名： | 王长科 吕宪国 蔡祖聪 罗勇 |
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| 作者单位： | 1. 中国气象局, 气候研究开放实验室, 北京, 100081;2. 中国科学院, 东北地理与农业生态研究所, 吉林, 长春, 130012;3. 中国科学院, 南京土壤研究所, 江苏, 南京, 210008 |
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| 基金项目： | 国家科技支撑计划项目(2006BAD20B05)，国家重点基础研究发展计划项目(2006CB403707)，中国气象局气候变化专项(CCSF2007-36)资助 |
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| 摘 要： | 若尔盖高原草甸土氧化大气CH4的速率为-0.092～0.125 ng·g-1·h-1,氧化速率随着土壤深度的增加而减小,深度超过25cm的土层没有氧化大气CH4的潜力;而高原泥炭土CH4排放速率为0.236～1.088 ng·g-1·h-1,排放速率亚表层土(10～25 cm)最大.两种土壤均能氧化高浓度CH4,泥炭土氧化大气浓度CH4的速率是草甸土的15～22倍.两种土壤不同层次氧化高浓度CH4的潜力都没有显著差异.降水减少或人为排水导致的泥炭地水位下降,将加强若尔盖高原土壤氧化CH4从而减少CH4排放.
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| 关 键 词： | CH4氧化 草甸土 泥炭地 若尔盖高原 |
| 文章编号： | 1000-0240（2007）04-0584-05 |
| 收稿时间： | 2007-01-03 |
| 修稿时间： | 2007-01-03 |
Methane Oxidation in the Meadow Soil and Peat Soil in Zoigê Plateau |
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| WANG Chang-ke,LU Xian-guo,CAI Zu-cong,LUO Yong. Methane Oxidation in the Meadow Soil and Peat Soil in Zoigê Plateau[J]. Journal of Glaciology and Geocryology, 2007, 29(4): 584-588. DOI: 10.7522/j.issn.1000-0240.2007.0083 |
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| Authors: | WANG Chang-ke LU Xian-guo CAI Zu-cong LUO Yong |
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| Affiliation: | 1. Laboratory of Climate Study, China Meteorological Administration, Beijing 100081, China;2. Northwest Institute ofGeography and Agricultural Ecology, Chinese Academy of Sciences, Changchun Jilin 130012, China;3. Institute of Soil Science, Chinese Academy of Sciences, Nanjing Jiangsu 210008, China |
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| Abstract: | The meadow soil in the Zoigê Plateau could consume atmospheric CH4 at a rate of-0.092～0.125 ng·g-1·h-1,and the potential CH4 oxidation rates decreases with increasing soil depth.The peat soil CH4 releases to atmosphere at a rate of 0.236～1.088 ng·g-1·h-1.Both soils can oxidize high-concentration CH4(9000 μL·L-1),but the peat soil can oxidize high-concentration CH4 more quick than the meadow soil does.Different soil layers have almost the same potential of oxidizing high-concentration CH4.CH4 emission form the peat land decreases with the increase of soil CH4 oxidation as the water level dropping in the peat land. |
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| Keywords: | methane oxidation meadow soil peat land Zoige Plateau |
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