|
|||||
|
|
| 三江平原典型草甸小叶章湿地土壤的反硝化作用 | |
| 引用本文： | 孙志高,刘景双,于君宝.三江平原典型草甸小叶章湿地土壤的反硝化作用[J].农业系统科学与综合研究,2010,26(1):117-122. |
| 作者姓名： | 孙志高 刘景双 于君宝 |
| 作者单位： | 1. 中国科学院烟台海岸带可持续发展研究所,山东,烟台,264003;中国科学院东北地理与农业生态研究所,吉林,长春,130012 2. 中国科学院东北地理与农业生态研究所,吉林,长春,130012 3. 中国科学院烟台海岸带可持续发展研究所,山东,烟台,264003 |
| 基金项目： | 中国科学院知识创新工程重要方向项目，山东省黄河三角洲生态环境重点实验室开放基金项目，中国科学院"优秀博士学位论文、院长奖获得者"科研启动专项资金项目 |
| 摘 要： | 选择三江平原典型草甸小叶章湿地土壤（草甸沼泽土）为研究对象，采用厌氧淹水培养法，研究了不同土层的反硝化率、反硝化能力及反硝化速率。结果表明，不同土层的反硝化率均随培养时间延长而增加，0～30cm土层的反硝化率较高，30cm以下土层较低且相近；不同土层的氖损失贡献率在不同阶段具有明显的时空分异特征，0～30cm土层的氮损失贡献率较高，介于52．39％和57．91％之间；不同土层的反硝化速率与培养时间均符合一阶指数衰减模型（R2≥0．97），上层土壤的反硝化速率明显高于下层土壤。不同土层的反硝化率和反硝化速率与土壤理化性质密切相关，反硝化细菌的剖面分布可能对其具有重要影响。图3，表4，参24。 |
| 关 键 词： | 反硝化作用 土壤 小叶章湿地 三江平原 |
Denitrification of Nitrogen in Typical Meadow Calamagrostis angustifolia Wetland Soils in the Sanjiang Plain |
|
| SUN Zhi-gao,LIU Jing-shuang,YU Jun-bao.Denitrification of Nitrogen in Typical Meadow Calamagrostis angustifolia Wetland Soils in the Sanjiang Plain[J].System Sciemces and Comprehensive Studies In Agriculture,2010,26(1):117-122. | |
| Authors: | SUN Zhi-gao LIU Jing-shuang YU Jun-bao |
| Institution: | 1. Yantai Institute of Coastal Zone Research for Sustainable Development/a>;Chinese Academy of Sciences/a>;Yantai 264003/a>;China/a>;2. Northeast Institute of Geography and Agricultural Ecology/a>;Changchun 130012/a>;China |
| Abstract: | The typical Calamagrostis angustifolia wetland soil (meadow marsh soil ) was selected as study objects,and the denitrification ratios,capacities and rates of different soil layers were studied by anaerobic submerged incubation method. Results showed that the denitrification ratios of different soil layers increased as the lapse of incubation time,and the values of 0-30cm layers were much higher,while those of 30cm-80cm layers were much lower and approximate. In different incubation phases,the nitrogen loss ... |
| Keywords: | demtrification soil Calamagrostis angustifoliawethnd Sanjiang Plain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |