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| DOI | 10.1016/j.soilbio.2024.109321 |
| Soil enzyme activity and stoichiometry in response to precipitation changes in terrestrial ecosystems | |
| 发表日期 | 2024 |
| ISSN | 0038-0717 |
| EISSN | 1879-3428 |
| 起始页码 | 191 |
| 卷号 | 191 |
| 英文摘要 | Soil extracellular enzymes play a key role in catalyzing organic matter decomposition, and enzymatic stoichiometry is a critical metric for reflecting shifts in soil microbial functions. Changes in precipitation can influence belowground ecosystem processes by regulating soil microbial functions under global change. However, the effects of increased (+PRE) and decreased precipitation (-PRE) on soil enzyme activity and stoichiometry remain poorly understood. In this study, we performed a global meta-analysis using 167 observations from 61 field studies to investigate the effects of precipitation changes on soil enzyme activity and stoichiometry. The results showed that + PRE increased the N- and P-acquiring enzyme activities by an average of 26% and 13%, respectively. +PRE led to a decrease in the enzymatic C:N ratio in the forests and dry areas. The -PRE had no general effect on soil C- and N-acquiring enzymes or their ratios. Soil N-acquiring enzyme activity, enzymatic C:N and N:P ratios were sensitive to slight + PRE, suggesting that moderate precipitation is conducive to enzyme production by microbial communities. Soil enzyme activity and stoichiometry were predominantly influenced by the experimental duration of precipitation changes, and their response to precipitation were closely associated with root biomass and the fungi-to-bacteria ratio. Collectively, precipitation changes may have a general impact on N-acquiring enzyme activity with consequences for the stoichiometry of soil resource recycling under global changes. |
| 英文关键词 | Drought; Enzymatic stoichiometry; Precipitation changes; Precipitation duration; Soil enzyme activity; Soil microorganisms |
| 语种 | 英语 |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| WOS记录号 | WOS:001181416100001 |
| 来源期刊 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297396 |
| 作者单位 | Northwest A&F University - China; Chinese Academy of Sciences; Institute of Soil & Water Conservation (ISWC), CAS; Chinese Academy of Sciences; Institute of Soil & Water Conservation (ISWC), CAS; Ministry of Water Resources; Chinese Academy of Sciences; Institute of Earth Environment, CAS; Free University of Berlin; Ningxia University; Ningxia University |
| 推荐引用方式 GB/T 7714 | . Soil enzyme activity and stoichiometry in response to precipitation changes in terrestrial ecosystems[J],2024,191. |
| APA | (2024).Soil enzyme activity and stoichiometry in response to precipitation changes in terrestrial ecosystems.SOIL BIOLOGY & BIOCHEMISTRY,191. |
| MLA | "Soil enzyme activity and stoichiometry in response to precipitation changes in terrestrial ecosystems".SOIL BIOLOGY & BIOCHEMISTRY 191(2024). |
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