Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations
AbstractHydrological fluctuations are key abiotic stresses that influence plant growth and photosynthetic processes of wetland plants. However, the response mechanism of the plant characteristics and photosynthesis of Carex schmidtii, with respect to hydrological fluctuations, are still unclear. Com...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-07-01
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| Series: | Journal of Freshwater Ecology |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/02705060.2023.2271502 |
| _version_ | 1827586388643545088 |
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| author | Dongjie Zhang Xuepeng Liu Shiya Gao Cheng Liu Yuan Xin Tongxin Wang Mingye Zhang Shouzheng Tong |
| author_facet | Dongjie Zhang Xuepeng Liu Shiya Gao Cheng Liu Yuan Xin Tongxin Wang Mingye Zhang Shouzheng Tong |
| author_sort | Dongjie Zhang |
| collection | DOAJ |
| description | AbstractHydrological fluctuations are key abiotic stresses that influence plant growth and photosynthetic processes of wetland plants. However, the response mechanism of the plant characteristics and photosynthesis of Carex schmidtii, with respect to hydrological fluctuations, are still unclear. Comparative studies of plant size parameters, biomass parameters, and photosynthesis parameters of C. schmidtii under the interactive influence of initial water depth (WD), water-level amplitude (WA), and duration time, were performed. The coupling relationship between any two factors of the plant characteristics of C. schmidtii was also examined. Generally, the results showed that the WD and WA treatments, and the duration time, significantly affected plant size, biomass, and photosynthesis of C. schmidtii. The exception was the effect by the WA on the biomass and the NPQ. Furthermore, the biomass and photosynthesis of C. schmidtii were significantly affected by the interactive effects by WD and WA. The plant size, biomass, and photosynthesis parameters of C. schmidtii first increased and then decreased over time. Larger values of plant size, biomass, and photosynthesis parameters (except for qL and NPQ) were found for the treatment with an initial water depth of 0 cm. As was the situation with WD, the largest values of plant height, chlorophyll content, Fv/Fm, and ΔFv/Fm’ were obtained for a water-level amplitude of 0 cm. Furthermore, the chlorophyll content was positively related to the plant size parameters, Fv/Fm, ΔFv/Fm’, and qL. Except for qL, ΔFv/Fm’ had a significant relationship with all plant factors. Lower water levels and smaller water level changes are more conducive to the growth and photosynthese of C. schmidtii. Plant size, biomass accumulation and photosynthesis of C. schmidtii collectively coped with hydrological fluctuations. The findings have improved understanding of the response of C. schmidtii to hydrological fluctuations. They have thereby provided invaluable information for the restoration, management and conservation of tussock wetlands. |
| first_indexed | 2024-03-09T00:00:15Z |
| format | Article |
| id | doaj.art-e3c934e80b014e578cf49ee5ae6f8a84 |
| institution | Directory Open Access Journal |
| issn | 0270-5060 2156-6941 |
| language | English |
| last_indexed | 2024-03-09T00:00:15Z |
| publishDate | 2023-07-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Freshwater Ecology |
| spelling | doaj.art-e3c934e80b014e578cf49ee5ae6f8a842023-12-12T20:20:41ZengTaylor & Francis GroupJournal of Freshwater Ecology0270-50602156-69412023-07-0138110.1080/02705060.2023.2271502Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuationsDongjie Zhang0Xuepeng Liu1Shiya Gao2Cheng Liu3Yuan Xin4Tongxin Wang5Mingye Zhang6Shouzheng Tong7Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou, Shandong Province, ChinaShandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou, Shandong Province, ChinaShandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou, Shandong Province, ChinaShandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou, Shandong Province, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province, ChinaKey Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province, ChinaAbstractHydrological fluctuations are key abiotic stresses that influence plant growth and photosynthetic processes of wetland plants. However, the response mechanism of the plant characteristics and photosynthesis of Carex schmidtii, with respect to hydrological fluctuations, are still unclear. Comparative studies of plant size parameters, biomass parameters, and photosynthesis parameters of C. schmidtii under the interactive influence of initial water depth (WD), water-level amplitude (WA), and duration time, were performed. The coupling relationship between any two factors of the plant characteristics of C. schmidtii was also examined. Generally, the results showed that the WD and WA treatments, and the duration time, significantly affected plant size, biomass, and photosynthesis of C. schmidtii. The exception was the effect by the WA on the biomass and the NPQ. Furthermore, the biomass and photosynthesis of C. schmidtii were significantly affected by the interactive effects by WD and WA. The plant size, biomass, and photosynthesis parameters of C. schmidtii first increased and then decreased over time. Larger values of plant size, biomass, and photosynthesis parameters (except for qL and NPQ) were found for the treatment with an initial water depth of 0 cm. As was the situation with WD, the largest values of plant height, chlorophyll content, Fv/Fm, and ΔFv/Fm’ were obtained for a water-level amplitude of 0 cm. Furthermore, the chlorophyll content was positively related to the plant size parameters, Fv/Fm, ΔFv/Fm’, and qL. Except for qL, ΔFv/Fm’ had a significant relationship with all plant factors. Lower water levels and smaller water level changes are more conducive to the growth and photosynthese of C. schmidtii. Plant size, biomass accumulation and photosynthesis of C. schmidtii collectively coped with hydrological fluctuations. The findings have improved understanding of the response of C. schmidtii to hydrological fluctuations. They have thereby provided invaluable information for the restoration, management and conservation of tussock wetlands.https://www.tandfonline.com/doi/10.1080/02705060.2023.2271502Plant traitswater-level fluctuationphotosynthetic responsesfreshwater marshtussock wetland |
| spellingShingle | Dongjie Zhang Xuepeng Liu Shiya Gao Cheng Liu Yuan Xin Tongxin Wang Mingye Zhang Shouzheng Tong Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations Journal of Freshwater Ecology Plant traits water-level fluctuation photosynthetic responses freshwater marsh tussock wetland |
| title | Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations |
| title_full | Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations |
| title_fullStr | Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations |
| title_full_unstemmed | Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations |
| title_short | Ecological and photosynthetic characteristics of Carex schmidtii with respect to hydrological fluctuations |
| title_sort | ecological and photosynthetic characteristics of carex schmidtii with respect to hydrological fluctuations |
| topic | Plant traits water-level fluctuation photosynthetic responses freshwater marsh tussock wetland |
| url | https://www.tandfonline.com/doi/10.1080/02705060.2023.2271502 |
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