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Morphological constraints on plant-mediated methane release and oxidation under experimental warming in a peatland and meadow on the Qinghai-Tibetan Plateau

文献类型：期刊论文

作者Ge, Mengyu2; Laiho, Raija1; Korrensalo, Aino1,3; Wang, Jinsong4; Niu, Shuli4; Wang, Weifeng2
刊名FUNCTIONAL ECOLOGY
出版日期2025-10-30
卷号N/A
关键词CH4 transport mechanisms experimental warming plant-mediated CH4 fluxes Qinghai-Tibetan Plateau shading and clipping experiments
ISSN号0269-8463
DOI10.1111/1365-2435.70202
产权排序4
文献子类Article ; Early Access
英文摘要Alpine meadows and peatlands on the Qinghai-Tibetan Plateau, respectively, act as sinks and sources of atmospheric CH4. Yet, little is known about plant-mediated CH4 fluxes in these ecosystems. We measured CH4 flux from shoots of plants in both ecosystems (45 and 7 species, respectively) and investigated its response to experimental warming. We further investigated the CH4 transport mechanism of key plant species in the peatland through shading and clipping experiments and scanning electron microscope analysis. In the meadow, most plant families showed negative plant CH4 flux (CH4 uptake), ranging from -0.0005 to -0.04 mg CH4 g-1 g h-1. The plant CH4 flux in the peatland was positive for all species but showed large between-species variation, ranging from 0.0006 to 0.167 mg CH4 g-1 g h-1. Experimental warming did not affect plant CH4 flux in the peatland, while it negatively affected CH4 uptake in the meadow. Plant CH4 transport mechanisms in the peatland were species-specific: the dense exodermes of the primary roots restrained transport in Blysmus sinocompressus and Carex myosuroides, while leaves controlled transport in Carex muliensis due to small aerenchyma and limited connectivity. Our findings have important implications for the regional CH4 budget and show that species-level differences should be considered when assessing plant-mediated CH4 emissions.Read the free for this article on the Journal blog.
URL标识查看原文
WOS关键词WATER-TABLE ; EMISSION ; TRANSPORT ; VEGETATION ; NORTHERN ; BIOMASS ; COMMUNITIES ; RHIZOSPHERE ; TEMPERATURE ; RESPONSES
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001604104400001
出版者WILEY
源URL[http://ir.igsnrr.ac.cn/handle/311030/217760]  
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; Wang, Weifeng
作者单位1.Nat Resources Inst Finland, Helsinki, Finland;
2.Nanjing Forestry Univ, Coll Ecol & Environm, Nanjing, Peoples R China;
3.Univ Eastern Finland, Sch Forest Sci, Joensuu, Finland;
4.Inst Geog Sci & Nat Resources Res CAS, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Ge, Mengyu,Laiho, Raija,Korrensalo, Aino,et al. Morphological constraints on plant-mediated methane release and oxidation under experimental warming in a peatland and meadow on the Qinghai-Tibetan Plateau[J]. FUNCTIONAL ECOLOGY,2025,N/A.
APA Ge, Mengyu,Laiho, Raija,Korrensalo, Aino,Wang, Jinsong,Niu, Shuli,&Wang, Weifeng.(2025).Morphological constraints on plant-mediated methane release and oxidation under experimental warming in a peatland and meadow on the Qinghai-Tibetan Plateau.FUNCTIONAL ECOLOGY,N/A.
MLA Ge, Mengyu,et al."Morphological constraints on plant-mediated methane release and oxidation under experimental warming in a peatland and meadow on the Qinghai-Tibetan Plateau".FUNCTIONAL ECOLOGY N/A(2025).

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来源：地理科学与资源研究所

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