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Wang Q, Zhang H, Yan Z, Wang J, Yu H, Yu D, Liu C. Decomposition of exotic versus native aquatic plant litter in a lake littoral zone: Stoichiometry and life form analyses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172271. [PMID: 38583606 DOI: 10.1016/j.scitotenv.2024.172271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
The decomposition rates and stoichiometric characteristics of many aquatic plants remain unclear, and our understanding of material flow and nutrient cycles within freshwater ecosystems is limited. In this study, an in-situ experiment involving 23 aquatic plants (16 native and 7 exotic species) was carried out via the litter bag method for 63 days, during which time the mass loss and nutrient content (carbon (C), nitrogen (N), and phosphorus (P)) of plants were measured. Floating-leaved plants exhibited the highest decomposition rate (0.038 ± 0.002 day-1), followed by submerged plants and free-floating plants (0.029 ± 0.002 day-1), and emergent plants had the lowest decomposition rate (0.019 ± 0.001 day-1). Mass loss by aquatic plants correlated with stoichiometric characteristics; the decomposition rate increased with an increasing P content and with a decreasing C content, C:N ratio, and C:P ratio. Notably, the decomposition rate of submerged exotic plants (0.044 ± 0.002 day-1) significantly exceeded that of native plants (0.026 ± 0.004 day-1), while the decomposition rate of emergent exotic plants was 55 ± 4 % higher than that of native plants. The decomposition rates of floating-leaved and free-floating plants did not significantly differ between the native and exotic species. During decomposition, emergent plants displayed an increase in C content and a decrease in N content, contrary to patterns observed in other life forms. The P content decreased for submerged (128 ± 7 %), emergent (90 ± 5 %), floating-leaved (104 ± 6 %), and free-floating plants (32 ± 6 %). Exotic plants released more C and P but accumulated more N than did native plants. In conclusion, the decomposition of aquatic plants is closely linked to litter quality and influences nutrient cycling in freshwater ecosystems. Given these findings, the invasion of the littoral zone by submerged and emergent exotic plants deserves further attention.
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Affiliation(s)
- Qiuyue Wang
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China
| | - Hongli Zhang
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China; Jianyang Middle School of Sichuan Province, Sichuan 641499, China
| | - Zhiwei Yan
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China; Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan 430019, China
| | - Junnan Wang
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China
| | - Haihao Yu
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China
| | - Dan Yu
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China
| | - Chunhua Liu
- The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Science, Wuhan University, Wuhan 430062, China.
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Osburn ED, Hoch PJ, Lucas JM, McBride SG, Strickland MS. Evaluating the roles of microbial functional breadth and home‐field advantage in leaf litter decomposition. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ernest D Osburn
- Department of Soil and Water Systems University of Idaho Moscow ID 83844 USA
| | - Peter J Hoch
- Department of Soil and Water Systems University of Idaho Moscow ID 83844 USA
| | - Jane M Lucas
- Department of Soil and Water Systems University of Idaho Moscow ID 83844 USA
- Cary Institute of Ecosystem Studies Millbrook NY 12545 USA
| | - Steven G McBride
- Department of Plant and Soil Science University of Kentucky Lexington KY 40546 USA
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3
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Influence of rhizosphere activity on litter decomposition in subtropical forest: implications of estimating soil organic matter contributions to soil respiration. JOURNAL OF TROPICAL ECOLOGY 2022. [DOI: 10.1017/s0266467422000013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Litter decomposition plays an important role in the carbon cycle and is affected by many factors in forest ecosystems. This study aimed to quantify the rhizosphere priming effect on litter decomposition in subtropical forest southwestern China. A litter decomposition experiment including control and trenching treatments was conducted using the litter bag method, and the litter decomposition rate was calculated by litter dry mass loss. Trenching did not change soil temperature, but increased the soil water content by 14.5%. In this study, the interaction of soil temperature and soil water content controlled the litter decomposition rate, and explained 87.4 and 85.5% of the variation in litter decomposition in the control and trenching treatments, respectively. Considering changes in soil environmental factors due to trenching, the litter decomposition rates were corrected by regression models. After correction, the litter decomposition rates of the control and trenching treatments were 32.47 ± 3.15 and 25.71 ± 2.72% year–1, respectively, in the 2-year period. Rhizosphere activity significantly primed litter decomposition by 26.3%. Our study suggested a priming effect of rhizosphere activity on litter decomposition in the subtropical forest. Combining previous interaction effect results, we estimated the contributions of total soil organic matter (SOM) decomposition, total litter decomposition, and root respiration to soil respiration in the subtropical forest, and our new method of estimating the components of soil respiration provided basic theory for SOM decomposition research.
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Nutrient effects on aquatic litter decomposition of free-floating plants are species dependent. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Fanin N, Lin D, Freschet GT, Keiser AD, Augusto L, Wardle DA, Veen GFC. Home-field advantage of litter decomposition: from the phyllosphere to the soil. THE NEW PHYTOLOGIST 2021; 231:1353-1358. [PMID: 34008201 DOI: 10.1111/nph.17475] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Plants often associate with specialized decomposer communities that increase plant litter breakdown, a phenomenon that is known as the 'home-field advantage' (HFA). Although the concept of HFA has long considered only the role of the soil microbial community, explicit consideration of the role of the microbial community on the foliage before litter fall (i.e. the phyllosphere community) may help us to better understand HFA. We investigated the occurrence of HFA in the presence vs absence of phyllosphere communities and found that HFA effects were smaller when phyllosphere communities were removed. We propose that priority effects and interactions between phyllosphere and soil organisms can help explain the positive effects of the phyllosphere at home, and suggest a path forward for further investigation.
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Affiliation(s)
- Nicolas Fanin
- INRAE, UMR 1391 ISPA, Bordeaux Sciences Agro, 71 Avenue Edouard Bourlaux, CS 20032, Villenave-d'Ornon Cedex, F33882, France
| | - Dunmei Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, 174th Shapingba Zhengjie Street, Shapingba District, Chongqing, 400045, China
| | - Grégoire T Freschet
- Station d'Ecologie Théorique et Expérimentale, CNRS, 2 route du CNRS, Moulis, 09200, France
| | - Ashley D Keiser
- Stockbridge School of Agriculture, 311 Paige Laboratory, University of Massachusetts, 161 Holdsworth Way, Amherst, MA, 01003, USA
| | - Laurent Augusto
- INRAE, UMR 1391 ISPA, Bordeaux Sciences Agro, 71 Avenue Edouard Bourlaux, CS 20032, Villenave-d'Ornon Cedex, F33882, France
| | - David A Wardle
- Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - G F Ciska Veen
- Department of Terrestrial Ecology, Netherlands Institute of Ecology, Droevendaalstesteeg 10, Wageningen, 6708 PB, the Netherlands
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Cui L, Pan X, Li W, Zhang X, Liu G, Song YB, Yu FH, Prinzing A, Cornelissen JHC. Phragmites australis meets Suaeda salsa on the "red beach": Effects of an ecosystem engineer on salt-marsh litter decomposition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 693:133477. [PMID: 31362230 DOI: 10.1016/j.scitotenv.2019.07.283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Suaeda salsa is a pioneer species in coastal wetlands of East Asia and recently an ecosystem engineer species, Phragmites australis, has started to enter into S. salsa communities owing to either autogenic or external drivers. The consequences of this phenomenon on the ecosystem functions of coastal wetlands are still unclear, especially for decomposition processes. Here we compared the decomposition rate of S. salsa litter, and associated litter chemistry dynamics, between sites with and without P. australis encroachment. We conducted a litter transplantation experiment to tease apart the effects of litter quality and decomposing environment or decomposer community composition. Our results showed that P. australis encroachment led to higher carbon and phosphorus losses of S. salsa litter, but equal losses of total mass, lignin, hemicellulose and nitrogen. Phragmites australis encroachment might affect decomposition rate indirectly by making S. salsa produce litter with higher lignin concentrations or via increasing the fungal diversity for decomposition. Moreover, P. australis as an ecosystem engineer might also alter the allocation of total phosphorus between the plants and the soils in coastal wetlands. Our findings indicate that P. australis could impact aboveground and belowground carbon and nutrient dynamics in coastal wetlands, and highlight the important consequences that encroaching plant species, especially ecosystem engineers, can have on ecosystem functions and services of coastal wetlands, not only in East Asia but probably also elsewhere in the world.
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Affiliation(s)
- Lijuan Cui
- Beijing Key Laboratory of Wetland Services and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing 100091, China
| | - Xu Pan
- Beijing Key Laboratory of Wetland Services and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing 100091, China.
| | - Wei Li
- Beijing Key Laboratory of Wetland Services and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing 100091, China
| | - Xiaodong Zhang
- Beijing Key Laboratory of Wetland Services and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing 100091, China
| | - Guofang Liu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Yao-Bin Song
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
| | - Fei-Hai Yu
- Institute of Wetland Ecology & Clone Ecology, Taizhou University, Taizhou 318000, China
| | - Andreas Prinzing
- Université de Rennes 1, Centre National de la Recherche Scientifique Campus de Beaulieu, Research Unit Ecobio, Bâtiment 14 A, 35042 Rennes, France
| | - Johannes H C Cornelissen
- Systems Ecology, Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, the Netherlands
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Yang X, Qu YB, Yang N, Zhao H, Wang JL, Zhao NX, Gao YB. Litter species diversity is more important than genotypic diversity of dominant grass species Stipa grandis in influencing litter decomposition in a bare field. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 666:490-498. [PMID: 30802664 DOI: 10.1016/j.scitotenv.2019.02.247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/15/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Studies have indicated that plant litter diversity can affect litter decomposition at both species diversity and genotypic diversity level within a species. However, the essence and relative importance of these two diversity levels on litter decomposition remain unknown. Here, two independent one-factor experiments, litter species diversity and litter genotypic diversity of the dominant species-Stipa grandis, were carried out to explore the effects of initial litter quality, litter composition and diversity on decomposition of mass, nitrogen (N), carbon (C) and phosphorus (P) simultaneously. The results showed that: (1) there were significant relationships between the initial litter N, C/N, lignin/N and the decomposition rate of N, between the initial litter P, N/P and the decomposition rate of P, and the litter composition significantly influenced litter mass, N, C and P remaining in both litter species and genotypic diversity experiments; and (2) litter species diversity significantly affected litter mass, N, C and P remaining, and non-additive relative mixture effects were mainly contributed by synergistic effects especially in 6-species mixtures; however, similar patterns were not found in litter genotypic diversity experiment. The present results emphasized that initial litter quality played the most important role in influencing litter decomposition of mass N, C and P, and suggested that litter species mixtures rather than litter genotypic mixtures of a dominant species could favor nutrient cycling in ecosystem of the semi-arid Inner Mongolia Steppe of China.
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Affiliation(s)
- Xue Yang
- Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Yao-Bing Qu
- Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Nan Yang
- Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin 300071, PR China; College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin 300384, PR China
| | - Hang Zhao
- Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin 300071, PR China
| | - Jin-Long Wang
- College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin 300384, PR China.
| | - Nian-Xi Zhao
- Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin 300071, PR China.
| | - Yu-Bao Gao
- Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin 300071, PR China.
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