scholarly journals Intraspecific facilitation explains the persistence of Phragmites australis in modified coastal wetlands

Ecosphere ◽  
2019 ◽  
Vol 10 (8) ◽  
Author(s):  
Valérie C. Reijers ◽  
Marloes Akker ◽  
Peter M. J. M. Cruijsen ◽  
Leon P. M. Lamers ◽  
Tjisse Heide
Keyword(s):  
Phragmites Australis ◽  
Coastal Wetlands ◽  
Intraspecific Facilitation

Biochar-compost addition benefits Phragmites australis growth and soil property in coastal wetlands

2021 ◽  
Vol 769 ◽  
pp. 145166
Author(s):  
Jin-Feng Liang ◽  
Qian-Wei Li ◽  
Jun-Qin Gao ◽  
Jiu-Ge Feng ◽  
Xiao-Ya Zhang ◽  
...  
Keyword(s):  
Phragmites Australis ◽  
Coastal Wetlands ◽  
Soil Property

scholarly journals The Impact of Sea Embankment Reclamation on Greenhouse Gas GHG Fluxes and Stocks in Invasive Spartina alterniflora and Native Phragmites australis Wetland Marshes of East China

2021 ◽  
Vol 13 (22) ◽  
pp. 12740
Author(s):  
Jian Li ◽  
Zhanrui Leng ◽  
Yueming Wu ◽  
Guanlin Li ◽  
Guangqian Ren ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Greenhouse Gas ◽  
Spartina Alterniflora ◽  
Phragmites Australis ◽  
Salt Marshes ◽  
Coastal Wetlands ◽  
Organic N ◽  
C And N ◽  
The Impact ◽  
Ghg Fluxes

The introduction of embankment seawalls to limit the expansion of the exotic C4 perennial grass Spartina alteniflora Loisel in eastern China’s coastal wetlands has more than doubled in the past decades. Previous research focused on the impact of sea embankment reclamation on the soil organic carbon (C) and nitrogen (N) stocks in salt marshes, whereas no study attempted to assess the impact of sea embankment reclamation on greenhouse gas (GHG) fluxes in such marshes. Here we examined the impact of sea embankment reclamation on GHG stocks and fluxes of an invasive Spartina alterniflora and native Phragmites australis dominated salt marsh in the Dongtai wetlands of China’s Jiangsu province. Sea embankment reclamation significantly decreased soil total organic C by 54.0% and total organic N by 73.2%, decreasing plant biomass, soil moisture, and soil salinity in both plants’ marsh. It increased CO2 emissions by 38.2% and 13.5%, and reduced CH4 emissions by 34.5% and 37.1%, respectively, in the Spartina alterniflora and Phragmites australis marshes. The coastal embankment wall also significantly increased N2O emission by 48.9% in the Phragmites australis salt marsh and reduced emissions by 17.2% in the Spartina alterniflora marsh. The fluxes of methane CH4 and carbon dioxide CO2 were similar in both restored and unrestored sections, whereas the fluxes of nitrous oxide N2O were substantially different owing to increased nitrate as a result of N-loading. Our findings show that sea embankment reclamation significantly alters coastal marsh potential to sequester C and N, particularly in native Phragmites australis salt marshes. As a result, sea embankment reclamation essentially weakens native and invasive saltmarshes’ C and N sinks, potentially depleting C and N sinks in coastal China’s wetlands. Stakeholders and policymakers can utilize this scientific evidence to strike a balance between seawall reclamation and invasive plant expansion in coastal wetlands.

A comparison of silage and dried common reed (phragmites australis) for finishing male calves

2003 ◽  
Vol 2003 ◽  
pp. 114-114 ◽  
Author(s):  
A. R. Aghashahi ◽  
A. Nikkhah
Keyword(s):  
Chemical Composition ◽  
Phragmites Australis ◽  
Coastal Wetlands ◽  
Dry Matter ◽  
Native Plants ◽  
Common Reed ◽  
The Common ◽  
Other World ◽  
Final Effect

The common reed (CR) is one of the plants which grows in some area of Iran and other world countries especially in coastal wetlands. Feed resource restriction is the most problem in animal production in some area and native plants have a key role. Ensiling may improve the quality of crop or decrease by high fermentation. These effects depend on stage of growth, chemical composition, dry matter and nutrients of plant, and final effect is not as same as for all crops. For understanding the effect of ensiling on quality of each plant must be investigate. For this reasons goals of this experiment was investigation on various methods of utilization of CR for finishing male calves and comparison with alfalfa.

Using unmanned aerial vehicles for high-resolution remote sensing to map invasive Phragmites australis in coastal wetlands

2016 ◽  
Vol 38 (8-10) ◽  
pp. 2199-2217 ◽  
Author(s):  
Sathishkumar Samiappan ◽  
Gray Turnage ◽  
Lee Hathcock ◽  
Luan Casagrande ◽  
Preston Stinson ◽  
...  
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Unmanned Aerial Vehicles ◽  
Phragmites Australis ◽  
Coastal Wetlands ◽  
Aerial Vehicles

scholarly journals Conceptual Model of Ecosystem Service Flows from Carbon Dioxide to Blue Carbon in Coastal Wetlands: An Empirical Study Based on Yancheng, China

2021 ◽  
Vol 13 (9) ◽  
pp. 4630
Author(s):  
Zheng Zang
Keyword(s):  
Carbon Sequestration ◽  
Spartina Alterniflora ◽  
Phragmites Australis ◽  
Coastal Wetlands ◽  
Coastal Wetland ◽  
Net Primary Productivity ◽  
Flow Direction ◽  
Blue Carbon ◽  
Aboveground Net Primary Productivity ◽  
Estimation Model

Large amounts of blue carbon exist in the ecosystems of coastal wetlands. Accurate calculations of the stocks and economic value of blue carbon in various plant communities can facilitate vegetation rehabilitation. Based on this objective, first, a blue carbon estimation model was constructed by combining a Carnegie-Ames-Stanford Approach (CASA) model, and second, the distribution pattern of blue carbon and flow direction of ecosystem services (carbon sequestration) in a coastal wetland in China was analyzed utilizing a combination of field surveys, remote sensing data, and laboratory analysis techniques. Finally, the wetland carbon sequestration value and its income-expenditure status were measured using the carbon tax method. The results show that the aboveground net primary productivity of coastal wetland vegetation exhibits a non-zonal distribution in the south-north direction, whereas it presented a three-level gradient distribution, characterized as “low (200–300 g/m2∙y)–intermediate (300–400 g/m2∙y)–high (400–500 g/m2∙y)”, in the east-west direction. The accumulation of carbon gradually increased from the ground surface to the underground (litter < underground roots < soil) in Spartina alterniflora and Phragmites australis. On the type scale, Spartina alterniflora and Phragmites australis wetlands were of the “blue carbon” net outflow type (supply type), with mean annual outflow carbon sequestration values of 3272.3 $/ha and 40.9 $/ha, respectively. The Suaeda glauca wetland was of the “blue carbon” net inflow type (benefit type), with a mean annual inflow carbon sequestration value of 190.7 $/ha.

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