Climate Change Data Portal
DOI | 10.1016/j.scitotenv.2024.171078 |
Decreased snow depth inhibits litter decomposition via changes in litter microbial biomass and enzyme activity | |
发表日期 | 2024 |
ISSN | 0048-9697 |
EISSN | 1879-1026 |
起始页码 | 921 |
卷号 | 921 |
英文摘要 | Decreased snow depth resulting from global warming has the potential to significantly impact biogeochemical cycles in cold forests. However, the specific mechanisms of how snow reduction affects litter decomposition and the underlying microbial processes remain unclear, this knowledge gap limits our ability to precisely predict ecological processes within cold forest ecosystems under climate change. Hence, a field experiment was conducted in a subalpine forest in southwestern China, involving a gradient of snow reduction levels (control, 50 %, 100 %) to investigate the effects of decreased snow on litter decomposition, as well as microbial biomass and activity, specifically focused on two common species: red birch (Betula albosinensis) and masters larch (Larix mastersiana). After one year of incubation, the decomposition rate (k -value) of the two types of litter ranged from 0.12 to 0.24 across three snow treatments. A significant lower litter mass loss, microbial biomass and enzyme activity were observed under decreased snow depth in winter. Furthermore, a hysteresis inhibitory effect of snow reduction on hydrolase activity was observed in the following growing season. Additionally, the high initial quality (lower C/N ratio) of red birch litter facilitated the colonization by a greater quantity of microorganisms, making it more susceptible to snow reduction compared to the low -quality masters larch litter. Structural equation models indicated that decreased snow depth hindered litter decomposition by altering the biological characterization of litter (e.g., microbial biomass and enzyme activity) and environmental variables (e.g., mean temperature and moisture content). The findings suggest that the potential decline in snow depth could inhibit litter decomposition by reducing microbial biomass and activity, implying that the future climate change may alter the material cycling processes in subalpine forest ecosystems. |
英文关键词 | Snow; Decomposition; Microbial biomass; Extracellular enzymes; Subalpine forest |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:001196543200001 |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/287236 |
作者单位 | Sichuan Agricultural University |
推荐引用方式 GB/T 7714 | . Decreased snow depth inhibits litter decomposition via changes in litter microbial biomass and enzyme activity[J],2024,921. |
APA | (2024).Decreased snow depth inhibits litter decomposition via changes in litter microbial biomass and enzyme activity.SCIENCE OF THE TOTAL ENVIRONMENT,921. |
MLA | "Decreased snow depth inhibits litter decomposition via changes in litter microbial biomass and enzyme activity".SCIENCE OF THE TOTAL ENVIRONMENT 921(2024). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
百度学术 |
百度学术中相似的文章 |
必应学术 |
必应学术中相似的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。