Effects of Nitrogen Fertilization on Soil Microbial Biomass and Community Functional Diversity in Temperate Grassland in Inner Mongolia, China
文献类型：SCI/SSCI论文
| 作者 | Peng Q. |
| 发表日期 | 2013 |
| 关键词 | Biolog Grassland Nitrogen fertilization Soil microbial biomass northern hardwood forests net primary productivity upland grassland plant diversity litter decay ecosystems water responses additions availability |
| 英文摘要 | Nitrogen (N) fertilization may profoundly affect soil microbial communities. In this study, a field fertilization experiment was conducted in temperate grassland in Inner Mongolia, China to examine the effect of N fertilization on soil microbial properties and the main factors related to the characteristics of soil microbial community. Soil microbial biomass carbon (MBC) and microbial functional diversity along an N gradient were measured over three months (June to August). The result showed that N fertilization significantly decreased MBC under high N treatment (N200, 200kgNha(-1)y(-1)) compared with the control (N0, 0kgNha(-1)y(-1)) in the three months. Microbial functional diversity in July and August were significantly increased by low N treatment (N50, 50kgNha(-1)y(-1)). Among the three fertilization treatments, microbial functional diversity under N200 in the three months was significantly lower than that of N50. The decrease of MBC and functional diversity under N200 were mainly due to the significant decline of plant belowground biomass under high N treatment. The increase of functional diversity under N50 treatment was due to the higher plant aboveground biomass as a result of the higher soil moisture availability. This finding highlighted that the higher N fertilization (N200) was not suitable for the growth and improvement of functional diversity of the soil microbial community, and that site and plant community play an important role in regulating the characteristics of soil microbial community. |
| 出处 | Clean-Soil Air Water |
| 卷 | 41 |
| 期 | 12 |
| 页 | 1216-1221 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1863-0650 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30518]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Peng Q.. Effects of Nitrogen Fertilization on Soil Microbial Biomass and Community Functional Diversity in Temperate Grassland in Inner Mongolia, China. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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