Response of soil respiration and microbial biomass carbon and nitrogen to nitrogen application in subalpine forests of western Sichuan
With rapid increase of global atmospheric nitrogen deposition, the nitrogen-limited subalpine forest ecosystem in western China maybe significantly affected. Soil microorganisms are important component part of the ecosystem and they are essential participants in the matter circulation and energy flo...
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| Veröffentlicht in: | Sheng tai xue bao 2019, Vol.39 (19), p.7197 |
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| container_title | Sheng tai xue bao |
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| creator | Wang, Zexi Chen, Qianmei Huang, Youyou Deng, Huini Shen, Xian Tang, Shiyu Zhang, Jian Liu, Yang |
| description | With rapid increase of global atmospheric nitrogen deposition, the nitrogen-limited subalpine forest ecosystem in western China maybe significantly affected. Soil microorganisms are important component part of the ecosystem and they are essential participants in the matter circulation and energy flow. Due to different background of ecosystem types, soil nutrients, and nitrogen deposition values, there are many uncertainties of soil respiration and soil microbial biomass carbon and nitrogen（MBC and MBN）in response to nitrogen application. Will nitrogen application promote the immobilization of soil carbon and nitrogen by soil respiration and microbial biomass in the subalpine forest ecosystem?Based on this assumption, a 60-year-old Larix mastersiana of subalpine coniferous forest in western Sichuan was taken as the research object.Dynamic of soil respiration and soil microbial biomass carbon and nitrogen were measured under four levels of nitrogen application control tests(CK: 0 g m-2a-1, N1:2 g m-2a-1, N2:5 g m-2a-1, N3:10 g m-2a-1)during a growing season（April-October）.The results showed that nitrogen application had significant effects on soil respiration and soil microbial carbon and nitrogen, which significantly promote these indicators. Soil respiration flux increased by 11%-15%, soil microbial biomass carbon increased by 5%-9%, and soil microbial biomass nitrogen increased by 23%-34%. The promotion of soil respiration is most facilitatedunder the level of nitrogen(5 g m-2a-1).Correlation analysis found that soil respiration had significant positive correlation with MBC, MBN and microbial metabolic quotient, and MBC and MBN had significant positive correlation with soil temperature and negative correlation with soil humidity.General linear regression analysis found soil respiration rate had significant positive correlation with soil temperature and negative correlation with soil moisture（P |
| doi_str_mv | 10.5846/stxb201805271164 |
| format | Article |
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Soil microorganisms are important component part of the ecosystem and they are essential participants in the matter circulation and energy flow. Due to different background of ecosystem types, soil nutrients, and nitrogen deposition values, there are many uncertainties of soil respiration and soil microbial biomass carbon and nitrogen（MBC and MBN）in response to nitrogen application. Will nitrogen application promote the immobilization of soil carbon and nitrogen by soil respiration and microbial biomass in the subalpine forest ecosystem?Based on this assumption, a 60-year-old Larix mastersiana of subalpine coniferous forest in western Sichuan was taken as the research object.Dynamic of soil respiration and soil microbial biomass carbon and nitrogen were measured under four levels of nitrogen application control tests(CK: 0 g m-2a-1, N1:2 g m-2a-1, N2:5 g m-2a-1, N3:10 g m-2a-1)during a growing season（April-October）.The results showed that nitrogen application had significant effects on soil respiration and soil microbial carbon and nitrogen, which significantly promote these indicators. Soil respiration flux increased by 11%-15%, soil microbial biomass carbon increased by 5%-9%, and soil microbial biomass nitrogen increased by 23%-34%. The promotion of soil respiration is most facilitatedunder the level of nitrogen(5 g m-2a-1).Correlation analysis found that soil respiration had significant positive correlation with MBC, MBN and microbial metabolic quotient, and MBC and MBN had significant positive correlation with soil temperature and negative correlation with soil humidity.General linear regression analysis found soil respiration rate had significant positive correlation with soil temperature and negative correlation with soil moisture（P<0.001）,Soil temperature sensitivity coefficient Q10value（7.10） was significantly higher than the control Q10value（4.26）.</description><identifier>ISSN: 1000-0933</identifier><identifier>DOI: 10.5846/stxb201805271164</identifier><language>chi</language><publisher>Beijing: Science Press</publisher><subject>Biomass ; Carbon ; Coniferous forests ; Correlation analysis ; Deposition ; Ecosystems ; Energy flow ; Forest ecosystems ; Forests ; Growing season ; Immobilization ; Microorganisms ; Nitrogen ; Nutrients ; Quotients ; Regression analysis ; Respiration ; Soil analysis ; Soil dynamics ; Soil microorganisms ; Soil moisture ; Soil nutrients ; Soil temperature ; Soils ; Subalpine environments ; Terrestrial ecosystems</subject><ispartof>Sheng tai xue bao, 2019, Vol.39 (19), p.7197</ispartof><rights>Copyright Science Press 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c186t-8b3a8ede98b3880a99667f86ebef3bc3a7cbe5c87f5bcf7f92a9080eccfa14ed3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Wang, Zexi</creatorcontrib><creatorcontrib>Chen, Qianmei</creatorcontrib><creatorcontrib>Huang, Youyou</creatorcontrib><creatorcontrib>Deng, Huini</creatorcontrib><creatorcontrib>Shen, Xian</creatorcontrib><creatorcontrib>Tang, Shiyu</creatorcontrib><creatorcontrib>Zhang, Jian</creatorcontrib><creatorcontrib>Liu, Yang</creatorcontrib><title>Response of soil respiration and microbial biomass carbon and nitrogen to nitrogen application in subalpine forests of western Sichuan</title><title>Sheng tai xue bao</title><description>With rapid increase of global atmospheric nitrogen deposition, the nitrogen-limited subalpine forest ecosystem in western China maybe significantly affected. Soil microorganisms are important component part of the ecosystem and they are essential participants in the matter circulation and energy flow. Due to different background of ecosystem types, soil nutrients, and nitrogen deposition values, there are many uncertainties of soil respiration and soil microbial biomass carbon and nitrogen（MBC and MBN）in response to nitrogen application. Will nitrogen application promote the immobilization of soil carbon and nitrogen by soil respiration and microbial biomass in the subalpine forest ecosystem?Based on this assumption, a 60-year-old Larix mastersiana of subalpine coniferous forest in western Sichuan was taken as the research object.Dynamic of soil respiration and soil microbial biomass carbon and nitrogen were measured under four levels of nitrogen application control tests(CK: 0 g m-2a-1, N1:2 g m-2a-1, N2:5 g m-2a-1, N3:10 g m-2a-1)during a growing season（April-October）.The results showed that nitrogen application had significant effects on soil respiration and soil microbial carbon and nitrogen, which significantly promote these indicators. Soil respiration flux increased by 11%-15%, soil microbial biomass carbon increased by 5%-9%, and soil microbial biomass nitrogen increased by 23%-34%. The promotion of soil respiration is most facilitatedunder the level of nitrogen(5 g m-2a-1).Correlation analysis found that soil respiration had significant positive correlation with MBC, MBN and microbial metabolic quotient, and MBC and MBN had significant positive correlation with soil temperature and negative correlation with soil humidity.General linear regression analysis found soil respiration rate had significant positive correlation with soil temperature and negative correlation with soil moisture（P<0.001）,Soil temperature sensitivity coefficient Q10value（7.10） was significantly higher than the control Q10value（4.26）.</description><subject>Biomass</subject><subject>Carbon</subject><subject>Coniferous forests</subject><subject>Correlation analysis</subject><subject>Deposition</subject><subject>Ecosystems</subject><subject>Energy flow</subject><subject>Forest ecosystems</subject><subject>Forests</subject><subject>Growing season</subject><subject>Immobilization</subject><subject>Microorganisms</subject><subject>Nitrogen</subject><subject>Nutrients</subject><subject>Quotients</subject><subject>Regression analysis</subject><subject>Respiration</subject><subject>Soil analysis</subject><subject>Soil dynamics</subject><subject>Soil microorganisms</subject><subject>Soil moisture</subject><subject>Soil nutrients</subject><subject>Soil temperature</subject><subject>Soils</subject><subject>Subalpine environments</subject><subject>Terrestrial ecosystems</subject><issn>1000-0933</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpdUMtKBDEQzEHBdfXuMeB5tJPMI3OUxRcsCD7OQyebaJbZZExmUH_A794suyB46qK7qKouQi4YXFWyrK_T-K04MAkVbxiryyMyYwBQQCvECTlNaQ0ggIl2Rn6fTRqCT4YGS1NwPY154SKOLniKfkU3TsegHPZUubDBlKjGqA5H78YY3o2nY_jDOAy903sF52maFPaD84bakMXHtLP6ysBET1-c_pjQn5Fji30y54c5J293t6-Lh2L5dP-4uFkWmsl6LKQSKM3KtBlICdi2dd1YWRtlrFBaYKOVqbRsbKW0bWzLsQUJRmuLrDQrMSeXe90hhs8pZ-jWYYo-W3ZccM54xcsqs2DPyp-nFI3thug2GH86Bt2u4e5_w2ILo592BQ</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Wang, Zexi</creator><creator>Chen, Qianmei</creator><creator>Huang, Youyou</creator><creator>Deng, Huini</creator><creator>Shen, Xian</creator><creator>Tang, Shiyu</creator><creator>Zhang, Jian</creator><creator>Liu, Yang</creator><general>Science Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7ST</scope><scope>7UA</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>2019</creationdate><title>Response of soil respiration and microbial biomass carbon and nitrogen to nitrogen application in subalpine forests of western Sichuan</title><author>Wang, Zexi ; Chen, Qianmei ; Huang, Youyou ; Deng, Huini ; Shen, Xian ; Tang, Shiyu ; Zhang, Jian ; Liu, Yang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c186t-8b3a8ede98b3880a99667f86ebef3bc3a7cbe5c87f5bcf7f92a9080eccfa14ed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>chi</language><creationdate>2019</creationdate><topic>Biomass</topic><topic>Carbon</topic><topic>Coniferous forests</topic><topic>Correlation analysis</topic><topic>Deposition</topic><topic>Ecosystems</topic><topic>Energy flow</topic><topic>Forest ecosystems</topic><topic>Forests</topic><topic>Growing season</topic><topic>Immobilization</topic><topic>Microorganisms</topic><topic>Nitrogen</topic><topic>Nutrients</topic><topic>Quotients</topic><topic>Regression analysis</topic><topic>Respiration</topic><topic>Soil analysis</topic><topic>Soil dynamics</topic><topic>Soil microorganisms</topic><topic>Soil moisture</topic><topic>Soil nutrients</topic><topic>Soil temperature</topic><topic>Soils</topic><topic>Subalpine environments</topic><topic>Terrestrial ecosystems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Zexi</creatorcontrib><creatorcontrib>Chen, Qianmei</creatorcontrib><creatorcontrib>Huang, Youyou</creatorcontrib><creatorcontrib>Deng, Huini</creatorcontrib><creatorcontrib>Shen, Xian</creatorcontrib><creatorcontrib>Tang, Shiyu</creatorcontrib><creatorcontrib>Zhang, Jian</creatorcontrib><creatorcontrib>Liu, Yang</creatorcontrib><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Sheng tai xue bao</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Zexi</au><au>Chen, Qianmei</au><au>Huang, Youyou</au><au>Deng, Huini</au><au>Shen, Xian</au><au>Tang, Shiyu</au><au>Zhang, Jian</au><au>Liu, Yang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Response of soil respiration and microbial biomass carbon and nitrogen to nitrogen application in subalpine forests of western Sichuan</atitle><jtitle>Sheng tai xue bao</jtitle><date>2019</date><risdate>2019</risdate><volume>39</volume><issue>19</issue><spage>7197</spage><pages>7197-</pages><issn>1000-0933</issn><abstract>With rapid increase of global atmospheric nitrogen deposition, the nitrogen-limited subalpine forest ecosystem in western China maybe significantly affected. Soil microorganisms are important component part of the ecosystem and they are essential participants in the matter circulation and energy flow. Due to different background of ecosystem types, soil nutrients, and nitrogen deposition values, there are many uncertainties of soil respiration and soil microbial biomass carbon and nitrogen（MBC and MBN）in response to nitrogen application. Will nitrogen application promote the immobilization of soil carbon and nitrogen by soil respiration and microbial biomass in the subalpine forest ecosystem?Based on this assumption, a 60-year-old Larix mastersiana of subalpine coniferous forest in western Sichuan was taken as the research object.Dynamic of soil respiration and soil microbial biomass carbon and nitrogen were measured under four levels of nitrogen application control tests(CK: 0 g m-2a-1, N1:2 g m-2a-1, N2:5 g m-2a-1, N3:10 g m-2a-1)during a growing season（April-October）.The results showed that nitrogen application had significant effects on soil respiration and soil microbial carbon and nitrogen, which significantly promote these indicators. Soil respiration flux increased by 11%-15%, soil microbial biomass carbon increased by 5%-9%, and soil microbial biomass nitrogen increased by 23%-34%. The promotion of soil respiration is most facilitatedunder the level of nitrogen(5 g m-2a-1).Correlation analysis found that soil respiration had significant positive correlation with MBC, MBN and microbial metabolic quotient, and MBC and MBN had significant positive correlation with soil temperature and negative correlation with soil humidity.General linear regression analysis found soil respiration rate had significant positive correlation with soil temperature and negative correlation with soil moisture（P<0.001）,Soil temperature sensitivity coefficient Q10value（7.10） was significantly higher than the control Q10value（4.26）.</abstract><cop>Beijing</cop><pub>Science Press</pub><doi>10.5846/stxb201805271164</doi></addata></record> |
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| subjects | Biomass Carbon Coniferous forests Correlation analysis Deposition Ecosystems Energy flow Forest ecosystems Forests Growing season Immobilization Microorganisms Nitrogen Nutrients Quotients Regression analysis Respiration Soil analysis Soil dynamics Soil microorganisms Soil moisture Soil nutrients Soil temperature Soils Subalpine environments Terrestrial ecosystems |
| title | Response of soil respiration and microbial biomass carbon and nitrogen to nitrogen application in subalpine forests of western Sichuan |
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