Microbial functional changes mark irreversible course of Tibetan grassland degradation
文献类型：期刊论文
| 作者 | Breidenbach, Andreas; Schleuss, Per-Marten; Liu, Shibin; Schneider, Dominik; Dippold, Michaela A.; de la Haye, Tilman; Miehe, Georg; Heitkamp, Felix; Seeber, Elke; Mason-Jones, Kyle |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2022 |
| 卷号 | 13期号:1页码:2681 |
| 关键词 | ARBUSCULAR MYCORRHIZAL STATUS LIGNOCELLULOSE DEGRADATION ALPINE MEADOWS CARBON PLATEAU PASTURE PLANTS FUNGI INTENSITY ECOSYSTEM |
| DOI | 10.1038/s41467-022-30047-7 |
| 英文摘要 | The Tibetan Plateau's Kobresia pastures store 2.5% of the world's soil organic carbon (SOC). Climate change and overgrazing render their topsoils vulnerable to degradation, with SOC stocks declining by 42% and nitrogen (N) by 33% at severely degraded sites. We resolved these losses into erosion accounting for two-thirds, and decreased carbon (C) input and increased SOC mineralization accounting for the other third, and confirmed these results by comparison with a meta-analysis of 594 observations. The microbial community responded to the degradation through altered taxonomic composition and enzymatic activities. Hydrolytic enzyme activities were reduced, while degradation of the remaining recalcitrant soil organic matter by oxidative enzymes was accelerated, demonstrating a severe shift in microbial functioning. This may irreversibly alter the world ' s largest alpine pastoral ecosystem by diminishing its C sink function and nutrient cycling dynamics, negatively impacting local food security, regional water quality and climate. The Tibetan Kobresia pastures store 2.5% of the world's soil organic carbon. Here the authors show that soil degradation and microbial shifts may irreversibly diminish the carbon sink function and accelerate nutrient losses. |
| WOS记录号 | WOS:000795204200008 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/74654]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Breidenbach, Andreas,Schleuss, Per-Marten,Liu, Shibin,et al. Microbial functional changes mark irreversible course of Tibetan grassland degradation[J]. NATURE COMMUNICATIONS,2022,13(1):2681. |
| APA | Breidenbach, Andreas.,Schleuss, Per-Marten.,Liu, Shibin.,Schneider, Dominik.,Dippold, Michaela A..,...&Spielvogel, Sandra.(2022).Microbial functional changes mark irreversible course of Tibetan grassland degradation.NATURE COMMUNICATIONS,13(1),2681. |
| MLA | Breidenbach, Andreas,et al."Microbial functional changes mark irreversible course of Tibetan grassland degradation".NATURE COMMUNICATIONS 13.1(2022):2681. |
入库方式： OAI收割
来源：昆明植物研究所
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