The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau
Mycorrhizal fungi can form symbiotic associations with tree species, which not only play an important role in plant survival and growth, but also in soil carbon (C) and nitrogen (N) cycling. However, the understanding of differences in soil C and N cycling patterns among forests with different mycor...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2022-09-01
|
| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/14028.pdf |
| _version_ | 1797410591368806400 |
|---|---|
| author | Miaomiao Zhang Shun Liu Miao Chen Jian Chen Xiangwen Cao Gexi Xu Hongshuang Xing Feifan Li Zuomin Shi |
| author_facet | Miaomiao Zhang Shun Liu Miao Chen Jian Chen Xiangwen Cao Gexi Xu Hongshuang Xing Feifan Li Zuomin Shi |
| author_sort | Miaomiao Zhang |
| collection | DOAJ |
| description | Mycorrhizal fungi can form symbiotic associations with tree species, which not only play an important role in plant survival and growth, but also in soil carbon (C) and nitrogen (N) cycling. However, the understanding of differences in soil C and N cycling patterns among forests with different mycorrhizal types is still incomplete. In order to determine the similarities and differences of soil C and N cycling patterns in different mycorrhizal forest types, three primary forests dominated by ectomycorrhizal (EcM), arbuscular mycorrhizal (AM) and ericoid mycorrhizal (ErM) trees respectively were studied on the eastern Qinghai-Tibetan Plateau. Indicators associated with soil C and N cycling, including leaf litter quality, soil C and N contents, soil C and N fluxes, and soil microbial biomass C and N contents were measured in each mycorrhizal type forest. The results showed that leaf litter quality was significantly lower with high C:N ratio and lignin: N ratio in ErM forest than that in AM and EcM forests. Soil CO2 flux (508.25 ± 65.51 mg m−2 h−1) in AM forest was significantly higher than that in EcM forest (387.18 ± 56.19 mg m−2 h−1) and ErM forest (177.87 ± 58.40 mg m−2 h−1). Furthermore, soil inorganic N content was higher in the AM forest than that in EcM and ErM forests. Soil net N mineralization rate (−0.02 ± 0.03 mg kg−1 d−1) was lower in ErM forest than that in EcM and AM forests. We speculated that AM and EcM forests were relatively characterized by rapid soil C cycling comparing to ErM forest. The soil N cycling in EcM and ErM forests were lower, implying they were ‘organic’ N nutrition patterns, and the pattern in ErM forest was more obvious. |
| first_indexed | 2024-03-09T04:32:25Z |
| format | Article |
| id | doaj.art-e7b112a6edd94e87961e013e89b52bf0 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T04:32:25Z |
| publishDate | 2022-09-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-e7b112a6edd94e87961e013e89b52bf02023-12-03T13:34:53ZengPeerJ Inc.PeerJ2167-83592022-09-0110e1402810.7717/peerj.14028The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan PlateauMiaomiao Zhang0Shun Liu1Miao Chen2Jian Chen3Xiangwen Cao4Gexi Xu5Hongshuang Xing6Feifan Li7Zuomin Shi8Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, ChinaMycorrhizal fungi can form symbiotic associations with tree species, which not only play an important role in plant survival and growth, but also in soil carbon (C) and nitrogen (N) cycling. However, the understanding of differences in soil C and N cycling patterns among forests with different mycorrhizal types is still incomplete. In order to determine the similarities and differences of soil C and N cycling patterns in different mycorrhizal forest types, three primary forests dominated by ectomycorrhizal (EcM), arbuscular mycorrhizal (AM) and ericoid mycorrhizal (ErM) trees respectively were studied on the eastern Qinghai-Tibetan Plateau. Indicators associated with soil C and N cycling, including leaf litter quality, soil C and N contents, soil C and N fluxes, and soil microbial biomass C and N contents were measured in each mycorrhizal type forest. The results showed that leaf litter quality was significantly lower with high C:N ratio and lignin: N ratio in ErM forest than that in AM and EcM forests. Soil CO2 flux (508.25 ± 65.51 mg m−2 h−1) in AM forest was significantly higher than that in EcM forest (387.18 ± 56.19 mg m−2 h−1) and ErM forest (177.87 ± 58.40 mg m−2 h−1). Furthermore, soil inorganic N content was higher in the AM forest than that in EcM and ErM forests. Soil net N mineralization rate (−0.02 ± 0.03 mg kg−1 d−1) was lower in ErM forest than that in EcM and AM forests. We speculated that AM and EcM forests were relatively characterized by rapid soil C cycling comparing to ErM forest. The soil N cycling in EcM and ErM forests were lower, implying they were ‘organic’ N nutrition patterns, and the pattern in ErM forest was more obvious.https://peerj.com/articles/14028.pdfSoil C and N cyclingEcM forestAM forestErM forestMycorrhizal association |
| spellingShingle | Miaomiao Zhang Shun Liu Miao Chen Jian Chen Xiangwen Cao Gexi Xu Hongshuang Xing Feifan Li Zuomin Shi The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau PeerJ Soil C and N cycling EcM forest AM forest ErM forest Mycorrhizal association |
| title | The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau |
| title_full | The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau |
| title_fullStr | The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau |
| title_full_unstemmed | The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau |
| title_short | The below-ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern Qinghai-Tibetan Plateau |
| title_sort | below ground carbon and nitrogen cycling patterns of different mycorrhizal forests on the eastern qinghai tibetan plateau |
| topic | Soil C and N cycling EcM forest AM forest ErM forest Mycorrhizal association |
| url | https://peerj.com/articles/14028.pdf |
| work_keys_str_mv | AT miaomiaozhang thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT shunliu thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT miaochen thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT jianchen thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT xiangwencao thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT gexixu thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT hongshuangxing thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT feifanli thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT zuominshi thebelowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT miaomiaozhang belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT shunliu belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT miaochen belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT jianchen belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT xiangwencao belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT gexixu belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT hongshuangxing belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT feifanli belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau AT zuominshi belowgroundcarbonandnitrogencyclingpatternsofdifferentmycorrhizalforestsontheeasternqinghaitibetanplateau |