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Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary

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Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary. / Zhao, Mingliang; Han, Guangxuan; Wu, Haitao; Song, Weimin; Chu, Xiaojing; Li, Juanyong; Qu, Wendi; Li, Xinge; Wei, Siyu; Eller, Franziska; Jiang, Changsheng.

I: Plant and Soil, Bind 454, Nr. 1-2, 09.2020, s. 87-102.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Zhao, M, Han, G, Wu, H, Song, W, Chu, X, Li, J, Qu, W, Li, X, Wei, S, Eller, F & Jiang, C 2020, 'Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary', Plant and Soil, bind 454, nr. 1-2, s. 87-102. https://doi.org/10.1007/s11104-020-04612-2

APA

Zhao, M., Han, G., Wu, H., Song, W., Chu, X., Li, J., Qu, W., Li, X., Wei, S., Eller, F., & Jiang, C. (2020). Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary. Plant and Soil, 454(1-2), 87-102. https://doi.org/10.1007/s11104-020-04612-2

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Author

Zhao, Mingliang ; Han, Guangxuan ; Wu, Haitao ; Song, Weimin ; Chu, Xiaojing ; Li, Juanyong ; Qu, Wendi ; Li, Xinge ; Wei, Siyu ; Eller, Franziska ; Jiang, Changsheng. / Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary. I: Plant and Soil. 2020 ; Bind 454, Nr. 1-2. s. 87-102.

Bibtex

@article{742dfb950f014f4299301015e233be4d,
title = "Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary",
abstract = "Aims: Climate change (extreme rainfall) and water management activities have led to variation in hydrological regimes, especially inundation, which may alter the function and structure of wetlands as well as wetland-atmosphere carbon (C) exchange. However, the degree to which different inundation depths (standing water depth above the soil surface) affect ecosystem CH4 fluxes, ecosystem respiration (Reco) and net ecosystem CO2 exchange (NEE) remains uncertain in wetland ecosystems. Methods: We conducted a field inundation depth manipulation experiment (no inundation, i.e. only natural precipitation; 0, water-saturated; 5, 10, 20, 30 and 40 cm inundation depth) in a freshwater wetland of the Yellow River Delta, China. The CH4 fluxes, Reco and NEE were measured with a static chamber technique during the growing seasons (May–October) of 2018 and 2019. Results: Inundation depth significantly increased plant shoot density, above-water level leaf area index (WLAI), above-water level plant shoot height (WHeight), aboveground and belowground biomass of the dominant grass Phragmites australis in both years. Meanwhile, inundation depth increased the CH4 fluxes, Reco (except for 0 cm) and NEE compared to no inundation, which could be attributed partly to the increased plant productivity (shoot density, WLAI, WHeight, biomass). Additionally, the CH4 fluxes, Reco or NEE exhibited parabolic responses to inundation depth. Furthermore, global warming potential (GWP) was significantly decreased under different inundation depths during the growing season, especially from 5 to 40 cm inundation depth in 2019. NEE was the largest contributor to the seasonal GWP, which indicates that the inundated wetlands are a net sink of C and have a cooling climate effect in the Yellow River Delta. Conclusions: Inundation depth substantially affects the magnitude of CH4 fluxes, Reco and NEE, which were correlated with altered plant traits in wetland ecosystems. Inundation depth could mitigate greenhouse gas emissions in the P. australis wetlands during the growing season. Inundation depth-induced ecosystem C exchange should be considered when estimating C sequestration capacity of wetlands due to climate change and water management activities, which will assist to accurately predict the impact of hydrological regimes on C cycles in future climate change scenarios.",
keywords = "Inundation depth ∙ Plant productivity ∙ Net ecosystem CO exchange ∙ Ecosystem respiration ∙ Ecosystem CH fluxes",
author = "Mingliang Zhao and Guangxuan Han and Haitao Wu and Weimin Song and Xiaojing Chu and Juanyong Li and Wendi Qu and Xinge Li and Siyu Wei and Franziska Eller and Changsheng Jiang",
year = "2020",
month = sep,
doi = "10.1007/s11104-020-04612-2",
language = "English",
volume = "454",
pages = "87--102",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer",
number = "1-2",

}

RIS

TY - JOUR

T1 - Inundation depth affects ecosystem CO2 and CH4 exchange by changing plant productivity in a freshwater wetland in the Yellow River Estuary

AU - Zhao, Mingliang

AU - Han, Guangxuan

AU - Wu, Haitao

AU - Song, Weimin

AU - Chu, Xiaojing

AU - Li, Juanyong

AU - Qu, Wendi

AU - Li, Xinge

AU - Wei, Siyu

AU - Eller, Franziska

AU - Jiang, Changsheng

PY - 2020/9

Y1 - 2020/9

N2 - Aims: Climate change (extreme rainfall) and water management activities have led to variation in hydrological regimes, especially inundation, which may alter the function and structure of wetlands as well as wetland-atmosphere carbon (C) exchange. However, the degree to which different inundation depths (standing water depth above the soil surface) affect ecosystem CH4 fluxes, ecosystem respiration (Reco) and net ecosystem CO2 exchange (NEE) remains uncertain in wetland ecosystems. Methods: We conducted a field inundation depth manipulation experiment (no inundation, i.e. only natural precipitation; 0, water-saturated; 5, 10, 20, 30 and 40 cm inundation depth) in a freshwater wetland of the Yellow River Delta, China. The CH4 fluxes, Reco and NEE were measured with a static chamber technique during the growing seasons (May–October) of 2018 and 2019. Results: Inundation depth significantly increased plant shoot density, above-water level leaf area index (WLAI), above-water level plant shoot height (WHeight), aboveground and belowground biomass of the dominant grass Phragmites australis in both years. Meanwhile, inundation depth increased the CH4 fluxes, Reco (except for 0 cm) and NEE compared to no inundation, which could be attributed partly to the increased plant productivity (shoot density, WLAI, WHeight, biomass). Additionally, the CH4 fluxes, Reco or NEE exhibited parabolic responses to inundation depth. Furthermore, global warming potential (GWP) was significantly decreased under different inundation depths during the growing season, especially from 5 to 40 cm inundation depth in 2019. NEE was the largest contributor to the seasonal GWP, which indicates that the inundated wetlands are a net sink of C and have a cooling climate effect in the Yellow River Delta. Conclusions: Inundation depth substantially affects the magnitude of CH4 fluxes, Reco and NEE, which were correlated with altered plant traits in wetland ecosystems. Inundation depth could mitigate greenhouse gas emissions in the P. australis wetlands during the growing season. Inundation depth-induced ecosystem C exchange should be considered when estimating C sequestration capacity of wetlands due to climate change and water management activities, which will assist to accurately predict the impact of hydrological regimes on C cycles in future climate change scenarios.

AB - Aims: Climate change (extreme rainfall) and water management activities have led to variation in hydrological regimes, especially inundation, which may alter the function and structure of wetlands as well as wetland-atmosphere carbon (C) exchange. However, the degree to which different inundation depths (standing water depth above the soil surface) affect ecosystem CH4 fluxes, ecosystem respiration (Reco) and net ecosystem CO2 exchange (NEE) remains uncertain in wetland ecosystems. Methods: We conducted a field inundation depth manipulation experiment (no inundation, i.e. only natural precipitation; 0, water-saturated; 5, 10, 20, 30 and 40 cm inundation depth) in a freshwater wetland of the Yellow River Delta, China. The CH4 fluxes, Reco and NEE were measured with a static chamber technique during the growing seasons (May–October) of 2018 and 2019. Results: Inundation depth significantly increased plant shoot density, above-water level leaf area index (WLAI), above-water level plant shoot height (WHeight), aboveground and belowground biomass of the dominant grass Phragmites australis in both years. Meanwhile, inundation depth increased the CH4 fluxes, Reco (except for 0 cm) and NEE compared to no inundation, which could be attributed partly to the increased plant productivity (shoot density, WLAI, WHeight, biomass). Additionally, the CH4 fluxes, Reco or NEE exhibited parabolic responses to inundation depth. Furthermore, global warming potential (GWP) was significantly decreased under different inundation depths during the growing season, especially from 5 to 40 cm inundation depth in 2019. NEE was the largest contributor to the seasonal GWP, which indicates that the inundated wetlands are a net sink of C and have a cooling climate effect in the Yellow River Delta. Conclusions: Inundation depth substantially affects the magnitude of CH4 fluxes, Reco and NEE, which were correlated with altered plant traits in wetland ecosystems. Inundation depth could mitigate greenhouse gas emissions in the P. australis wetlands during the growing season. Inundation depth-induced ecosystem C exchange should be considered when estimating C sequestration capacity of wetlands due to climate change and water management activities, which will assist to accurately predict the impact of hydrological regimes on C cycles in future climate change scenarios.

KW - Inundation depth ∙ Plant productivity ∙ Net ecosystem CO exchange ∙ Ecosystem respiration ∙ Ecosystem CH fluxes

UR - http://www.scopus.com/inward/record.url?scp=85087703239&partnerID=8YFLogxK

U2 - 10.1007/s11104-020-04612-2

DO - 10.1007/s11104-020-04612-2

M3 - Journal article

AN - SCOPUS:85087703239

VL - 454

SP - 87

EP - 102

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1-2

ER -