中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
  4. 生态系统研究网络观测与模拟重点实验室
  5. 外文论文
Threshold response of arbuscular mycorrhizal mycelial respiration to a nitrogen addition gradient in an alpine grassland

文献类型：期刊论文

作者Wang, Quan-Cheng2,3; Shi, Jiawei2,3; Wang, Jinsong1,2,3; Pan, Junxiao3; Ma, Fangfang3; Zhang, Ruiyang3; Tian, Dashuan2,3; Liu, Ning1,2,3; Zhou, Ronglei2,3; Gao, Zhangwei2,3
刊名FUNCTIONAL ECOLOGY
出版日期2025-03-18
卷号N/A
关键词alpine grassland arbuscular mycorrhizal mycelial respiration mesh exclusion method N addition gradient threshold
ISSN号0269-8463
DOI10.1111/1365-2435.70033
产权排序1
文献子类Article ; Early Access
英文摘要Arbuscular mycorrhizal fungi (AMF) are crucial symbiotic partners for plant nitrogen (N) acquisition and are sensitive to exogenous N inputs. However, the AMF mycelial respiration (RAMF) has always been overlooked in previous studies, and the extent to which different levels of N input can induce changes in RAMF remains elusive. Based on a long-term field experiment with a gradient of N addition rates (0, 2, 4, 8, 16, 32 g N m-2 year-1) in an alpine meadow on the Qinghai-Tibetan Plateau, we investigated the response of RAMF to N enrichment and explored the underlying mechanisms. RAMF exhibited a threshold response to N enrichment, with no changes observed at low N addition rates, but a significant decrease above the threshold of 8 g N m-2 year-1. RAMF accounted for 33% of soil respiration across different treatments. N-induced changes in plant (richness, coverage and root biomass), soil (available N, pH and moisture) and AMF attributes (biomass, Shannon diversity and relative abundance of Glomeraceae) collectively explained 64% of the variation in RAMF, and soil factors contributed more to the variation of RAMF than plant and AMF factors. Our findings confirm the significant contribution of RAMF to soil carbon emissions, and incorporating its threshold response into carbon cycling models is imperative to inform soil carbon dynamics under climate change.Read the free Plain Language Summary for this article on the Journal blog.
URL标识查看原文
WOS关键词SOIL CO2 FLUX ; ECOSYSTEM RESPONSES ; FUNGI ; DEPOSITION ; COMPONENTS ; FOREST ; PHOTOSYNTHESIS ; RHIZOSPHERE ; TEMPERATURE ; PATTERNS
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001446694500001
出版者WILEY
源URL[http://ir.igsnrr.ac.cn/handle/311030/213252]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Wang, Jinsong
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Sichuan Zoige Alpine Wetland Ecosyst Natl Observat, Beijing, Peoples R China;
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China;
推荐引用方式
GB/T 7714		 Wang, Quan-Cheng,Shi, Jiawei,Wang, Jinsong,et al. Threshold response of arbuscular mycorrhizal mycelial respiration to a nitrogen addition gradient in an alpine grassland[J]. FUNCTIONAL ECOLOGY,2025,N/A.
APA Wang, Quan-Cheng.,Shi, Jiawei.,Wang, Jinsong.,Pan, Junxiao.,Ma, Fangfang.,...&Niu, Shuli.(2025).Threshold response of arbuscular mycorrhizal mycelial respiration to a nitrogen addition gradient in an alpine grassland.FUNCTIONAL ECOLOGY,N/A.
MLA Wang, Quan-Cheng,et al."Threshold response of arbuscular mycorrhizal mycelial respiration to a nitrogen addition gradient in an alpine grassland".FUNCTIONAL ECOLOGY N/A(2025).

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

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。