Spatiotemporal patterns and drivers of stem methane flux from two poplar forests with different soil textures
Abstract In forest ecosystems, the majority of methane (CH4) research focuses on soils, whereas tree stem CH4 flux and driving factors remain poorly understood. We measured the in situ stem CH4 flux using the static chamber–gas chromatography method at different heights in two poplar (Populus spp.)...
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| Veröffentlicht in: | Tree physiology 2022-12, Vol.42 (12), p.2454-2467 |
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| container_title | Tree physiology |
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| creator | Han, Menghua Feng, Huili Peng, Changhui Lei, Xiangdong Xue, Jianhui Malghani, Saadatullah Ma, Xuehong Song, Xinzhang Wang, Weifeng |
| description | Abstract
In forest ecosystems, the majority of methane (CH4) research focuses on soils, whereas tree stem CH4 flux and driving factors remain poorly understood. We measured the in situ stem CH4 flux using the static chamber–gas chromatography method at different heights in two poplar (Populus spp.) forests with separate soil textures. We evaluated the relationship between stem CH4 fluxes and environmental factors with linear mixed models and estimated the tree CH4 emission rate at the stand level. Our results showed that poplar stems were a net source of atmospheric CH4. The mean stem CH4 emission rates were 97.51 ± 6.21 μg·m−2·h−1 in Sihong and 67.04 ± 5.64 μg·m−2·h−1 in Dongtai. The stem CH4 emission rate in Sihong with clay loam soils was significantly higher (P |
| doi_str_mv | 10.1093/treephys/tpac091 |
| format | Article |
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In forest ecosystems, the majority of methane (CH4) research focuses on soils, whereas tree stem CH4 flux and driving factors remain poorly understood. We measured the in situ stem CH4 flux using the static chamber–gas chromatography method at different heights in two poplar (Populus spp.) forests with separate soil textures. We evaluated the relationship between stem CH4 fluxes and environmental factors with linear mixed models and estimated the tree CH4 emission rate at the stand level. Our results showed that poplar stems were a net source of atmospheric CH4. The mean stem CH4 emission rates were 97.51 ± 6.21 μg·m−2·h−1 in Sihong and 67.04 ± 5.64 μg·m−2·h−1 in Dongtai. The stem CH4 emission rate in Sihong with clay loam soils was significantly higher (P < 0.001) than that in Dongtai with sandy loam soils. The stem CH4 emission rate also showed a seasonal variation, minimum in winter and maximum in summer. The stem CH4 emission rate generally decreased with increasing sampling height. Although the differences in CH4 emission rates between stem heights were significant in the annual averages, these differences were driven by differences observed in the summer. Stem CH4 emission rates were significantly and positively correlated with air temperature (P < 0.001), relative humidity (P < 0.001), soil water content (P < 0.001) and soil CH4 flux (P < 0.001). At these sites, the soil emitted CH4 to the atmosphere in summer (mainly from June to September) but absorbed CH4 from the atmosphere during the other season. At the stand level, tree CH4 emissions accounted for 2–35.4% of soil CH4 uptake. Overall, tree stem CH4 efflux could be an important component of the forest CH4 budget. Therefore, it is necessary to conduct more in situ monitoring of stem CH4 flux to accurately estimate the CH4 budget in the future.</description><identifier>ISSN: 1758-4469</identifier><identifier>EISSN: 1758-4469</identifier><identifier>DOI: 10.1093/treephys/tpac091</identifier><identifier>PMID: 35870127</identifier><language>eng</language><publisher>Canada: Oxford University Press</publisher><subject>Ecosystem ; Forests ; Methane - analysis ; Populus ; Soil - chemistry ; Trees - chemistry</subject><ispartof>Tree physiology, 2022-12, Vol.42 (12), p.2454-2467</ispartof><rights>The Author(s) 2022. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com 2022</rights><rights>The Author(s) 2022. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c335t-79ffbb5a49aac6acc20880fb473991125cf140fd0434d90feffe2d0f2e40eb9f3</citedby><cites>FETCH-LOGICAL-c335t-79ffbb5a49aac6acc20880fb473991125cf140fd0434d90feffe2d0f2e40eb9f3</cites><orcidid>0000-0002-9752-6185</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1584,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35870127$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Sevanto, Sanna</contributor><creatorcontrib>Han, Menghua</creatorcontrib><creatorcontrib>Feng, Huili</creatorcontrib><creatorcontrib>Peng, Changhui</creatorcontrib><creatorcontrib>Lei, Xiangdong</creatorcontrib><creatorcontrib>Xue, Jianhui</creatorcontrib><creatorcontrib>Malghani, Saadatullah</creatorcontrib><creatorcontrib>Ma, Xuehong</creatorcontrib><creatorcontrib>Song, Xinzhang</creatorcontrib><creatorcontrib>Wang, Weifeng</creatorcontrib><title>Spatiotemporal patterns and drivers of stem methane flux from two poplar forests with different soil textures</title><title>Tree physiology</title><addtitle>Tree Physiol</addtitle><description>Abstract
In forest ecosystems, the majority of methane (CH4) research focuses on soils, whereas tree stem CH4 flux and driving factors remain poorly understood. We measured the in situ stem CH4 flux using the static chamber–gas chromatography method at different heights in two poplar (Populus spp.) forests with separate soil textures. We evaluated the relationship between stem CH4 fluxes and environmental factors with linear mixed models and estimated the tree CH4 emission rate at the stand level. Our results showed that poplar stems were a net source of atmospheric CH4. The mean stem CH4 emission rates were 97.51 ± 6.21 μg·m−2·h−1 in Sihong and 67.04 ± 5.64 μg·m−2·h−1 in Dongtai. The stem CH4 emission rate in Sihong with clay loam soils was significantly higher (P < 0.001) than that in Dongtai with sandy loam soils. The stem CH4 emission rate also showed a seasonal variation, minimum in winter and maximum in summer. The stem CH4 emission rate generally decreased with increasing sampling height. Although the differences in CH4 emission rates between stem heights were significant in the annual averages, these differences were driven by differences observed in the summer. Stem CH4 emission rates were significantly and positively correlated with air temperature (P < 0.001), relative humidity (P < 0.001), soil water content (P < 0.001) and soil CH4 flux (P < 0.001). At these sites, the soil emitted CH4 to the atmosphere in summer (mainly from June to September) but absorbed CH4 from the atmosphere during the other season. At the stand level, tree CH4 emissions accounted for 2–35.4% of soil CH4 uptake. Overall, tree stem CH4 efflux could be an important component of the forest CH4 budget. Therefore, it is necessary to conduct more in situ monitoring of stem CH4 flux to accurately estimate the CH4 budget in the future.</description><subject>Ecosystem</subject><subject>Forests</subject><subject>Methane - analysis</subject><subject>Populus</subject><subject>Soil - chemistry</subject><subject>Trees - chemistry</subject><issn>1758-4469</issn><issn>1758-4469</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkE1Lw0AQhhdRbK3ePcncJXY32TTZoxS_oOBBPYdNMkMjSXbZ3dj23xtpK948zQzzfsDD2LXgd4KrZB4col3v_DxYXXElTthUZGkeSblQp3_2Cbvw_pNzkea5OmeTJM0zLuJsyro3q0NjAnbWON3CeAV0vQfd11C75gudB0PgRwV0GNa6R6B22AI500HYGLDGttoBGYc-eNg0YQ11Q4QO-wDeNC0E3IZhfF-yM9Ktx6vDnLGPx4f35XO0en16Wd6voipJ0hBliqgsUy2V1tVCV1XM85xTKbNEKSHitCIhOdVcJrJWnHAsi2tOMUqOpaJkxvg-t3LGe4dUWNd02u0KwYsfcsWRXHEgN1pu9hY7lB3Wv4YjqlFwuxeYwf4f9w2vsoDU</recordid><startdate>20221212</startdate><enddate>20221212</enddate><creator>Han, Menghua</creator><creator>Feng, Huili</creator><creator>Peng, Changhui</creator><creator>Lei, Xiangdong</creator><creator>Xue, Jianhui</creator><creator>Malghani, Saadatullah</creator><creator>Ma, Xuehong</creator><creator>Song, Xinzhang</creator><creator>Wang, Weifeng</creator><general>Oxford University Press</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-9752-6185</orcidid></search><sort><creationdate>20221212</creationdate><title>Spatiotemporal patterns and drivers of stem methane flux from two poplar forests with different soil textures</title><author>Han, Menghua ; Feng, Huili ; Peng, Changhui ; Lei, Xiangdong ; Xue, Jianhui ; Malghani, Saadatullah ; Ma, Xuehong ; Song, Xinzhang ; Wang, Weifeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c335t-79ffbb5a49aac6acc20880fb473991125cf140fd0434d90feffe2d0f2e40eb9f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Ecosystem</topic><topic>Forests</topic><topic>Methane - analysis</topic><topic>Populus</topic><topic>Soil - chemistry</topic><topic>Trees - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Han, Menghua</creatorcontrib><creatorcontrib>Feng, Huili</creatorcontrib><creatorcontrib>Peng, Changhui</creatorcontrib><creatorcontrib>Lei, Xiangdong</creatorcontrib><creatorcontrib>Xue, Jianhui</creatorcontrib><creatorcontrib>Malghani, Saadatullah</creatorcontrib><creatorcontrib>Ma, Xuehong</creatorcontrib><creatorcontrib>Song, Xinzhang</creatorcontrib><creatorcontrib>Wang, Weifeng</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Tree physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Han, Menghua</au><au>Feng, Huili</au><au>Peng, Changhui</au><au>Lei, Xiangdong</au><au>Xue, Jianhui</au><au>Malghani, Saadatullah</au><au>Ma, Xuehong</au><au>Song, Xinzhang</au><au>Wang, Weifeng</au><au>Sevanto, Sanna</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spatiotemporal patterns and drivers of stem methane flux from two poplar forests with different soil textures</atitle><jtitle>Tree physiology</jtitle><addtitle>Tree Physiol</addtitle><date>2022-12-12</date><risdate>2022</risdate><volume>42</volume><issue>12</issue><spage>2454</spage><epage>2467</epage><pages>2454-2467</pages><issn>1758-4469</issn><eissn>1758-4469</eissn><abstract>Abstract
In forest ecosystems, the majority of methane (CH4) research focuses on soils, whereas tree stem CH4 flux and driving factors remain poorly understood. We measured the in situ stem CH4 flux using the static chamber–gas chromatography method at different heights in two poplar (Populus spp.) forests with separate soil textures. We evaluated the relationship between stem CH4 fluxes and environmental factors with linear mixed models and estimated the tree CH4 emission rate at the stand level. Our results showed that poplar stems were a net source of atmospheric CH4. The mean stem CH4 emission rates were 97.51 ± 6.21 μg·m−2·h−1 in Sihong and 67.04 ± 5.64 μg·m−2·h−1 in Dongtai. The stem CH4 emission rate in Sihong with clay loam soils was significantly higher (P < 0.001) than that in Dongtai with sandy loam soils. The stem CH4 emission rate also showed a seasonal variation, minimum in winter and maximum in summer. The stem CH4 emission rate generally decreased with increasing sampling height. Although the differences in CH4 emission rates between stem heights were significant in the annual averages, these differences were driven by differences observed in the summer. Stem CH4 emission rates were significantly and positively correlated with air temperature (P < 0.001), relative humidity (P < 0.001), soil water content (P < 0.001) and soil CH4 flux (P < 0.001). At these sites, the soil emitted CH4 to the atmosphere in summer (mainly from June to September) but absorbed CH4 from the atmosphere during the other season. At the stand level, tree CH4 emissions accounted for 2–35.4% of soil CH4 uptake. Overall, tree stem CH4 efflux could be an important component of the forest CH4 budget. Therefore, it is necessary to conduct more in situ monitoring of stem CH4 flux to accurately estimate the CH4 budget in the future.</abstract><cop>Canada</cop><pub>Oxford University Press</pub><pmid>35870127</pmid><doi>10.1093/treephys/tpac091</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-9752-6185</orcidid></addata></record> |
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| source | MEDLINE; Oxford University Press Journals All Titles (1996-Current); Alma/SFX Local Collection |
| subjects | Ecosystem Forests Methane - analysis Populus Soil - chemistry Trees - chemistry |
| title | Spatiotemporal patterns and drivers of stem methane flux from two poplar forests with different soil textures |
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