Potential effects of tidal flat variations on decomposition and nutrient dynamics of Phragmites australis , Suaeda salsa and Suaeda glauca litter in newly created marshes of the Yellow River estuary, China

Sun, Zhigao; Mou, Xiaojie; Sun, Weiwei

doi:10.1016/j.ecoleng.2016.05.024

Cited by 35 publications

(12 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, given a range of δ 13 C POM values from −28.4 to −18.0 , eelgrass contribution (δ 13 C value of −8.6 ± 1.0 , Z. marina) to the POM pool may be negligible. Furthermore, molar C:N ratios of 40.6-125.5 for P. australis (Sun et al, 2016) and 13.0-14.6 for Z. marina leaves or 15.8-19.5 for rhizomes (Kim et al, 2012) are relatively high compared with those observed in the bay POM, suggesting a minor contribution to the POM pool of higher plant detritus.…”

Section: Dominance Of Phytoplankton-derived Pommentioning

confidence: 84%

Dominance of Autochthonous Phytoplankton-Derived Particulate Organic Matter in a Low-Turbidity Temperate Estuarine Embayment, Gwangyang Bay, Korea

et al. 2020

View full text Add to dashboard Cite

In estuaries, the sources of organic matter, its composition, and its functional role in the coastal ecosystem food web are all influenced by dominant estuarine processes. We investigated seasonal variations in the quantity and composition of dissolved inorganic nutrients, suspended particulate matter (SPM), and phytoplankton across a low-turbidity estuarine-coastal continuum in Gwangyang Bay, South Korea. The narrow estuarine channel has a sharp salinity gradient (from 0 to around 30) and low SPM concentrations (<20 mg L −1). The channel carries river discharge, with a large quantity of nutrients (NO 3 and SiO 2), into the bay. The especially low SPM concentrations in the estuary (range: 2.0-29.1 mg L −1), and generous nutrient source, create an exceptionally low-turbidity condition in the water column and high primary productivity with no conspicuous spatial or seasonal trends. Gradually increasing δ 13 C values, low POC:Chla (<200), and low molar C:N (4-8) in the SPM, together with higher Chla concentrations at low SPM locations along the longitudinal transect, suggest that local production of phytoplankton has a strong influence on the distributional patterns of particulate organic matter. Short water-residence times, within the bay system, impede the accumulation of diverseorigin organic matter. The community composition of phytoplankton, distinguished by their size group, also plays a role in characterizing SPM quantity and composition. The results indicate that autochthonous pelagic production governs biogeochemical features in the low-turbidity estuarine embayment, contrasting with a prevalence of allochthonous organic matter, and its active processing, in highly turbid and/or longer residence-time systems.

show abstract

Section: Dominance Of Phytoplankton-derived Pommentioning

confidence: 84%

Dominance of Autochthonous Phytoplankton-Derived Particulate Organic Matter in a Low-Turbidity Temperate Estuarine Embayment, Gwangyang Bay, Korea

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The wetland is one of the largest coastal wetlands in the northeast region of China [26][27][28]. Although the wetland is relatively young formed in the last few decades when the Yellow River Estuary changed its flow path, it has played major roles protecting and sustaining the coastal ecosystem and wildlife.…”

Section: Introductionmentioning

confidence: 99%

Release and Microbial Degradation of Dissolved Organic Carbon and Nitrogen from Phragmites australis and Suaeda salsa in the Wetland of the Yellow River Estuary

Qi¹,

Xue²,

Wang³

2017

J Oceanogr Mar Res

View full text Add to dashboard Cite

“…salsa effectively [ 48 ], and salinity will release into soil during S . salsa litters decomposition which increases as increased salinity [ 49 ]. Thus, if the S .…”

Section: Discussionmentioning

confidence: 99%

High Colonization Possibility of Some Species of Weeds in Suaeda salsa Community: From an Ecological Stoichiometry Perspective

Wang

Chai

et al. 2017

PLoS ONE

View full text Add to dashboard Cite

Suaeda salsa community is a vegetation type in saline-alkali areas. Weed invasion and colonization in S. salsa communities lead to fragmentationsof S. salsa communities. The colonization of invaded weeds in S. salsa communities is related to community succession of saline-alkali zones. The fragmented S. salsa community may be restored if the mechanism of invaded weed colonization in S. salsa communities is clearly elucidated. Thus, we studied the ecological stoichiometric characteristics of soils and plants in a salt marsh to explain the high colonization possibility of invaded weeds in S. salsa communities. In October 2014, soils and plants were collected from Dongfeng Salt Marsh, Jiaozhou Bay, Shandong Province, China. The ratio of Ex-N/Ex-P in soil was less than 13, which suggests a relative nitrogen limitation for the primary production in the zone. The minimum phosphorus content in plants was higher than 1 mg g-1, whereas the maximum nitrogen content in plants was less than 13 mg g-1. These results imply that phosphorus was abundant, whereas nitrogen was deficient in the area. The plants in the salt marsh may be limited by nitrogen. Given the relatively lower nitrogen contents in Cyperus glomeratus, Echinochloa crusgalli, and Aster subulatus than that in S. salsa, these three species exhibited higher competitiveness than S. salsa did when nitrogen was limited in primary production. These weed species may colonize highly in S. salsa communities. Moreover, nitrogen fertilization might be effective to maintain S. salsa community in Dongfeng Salt Marsh, whereas its effects on controlling weeds colonization in S. salsa communities need more studies to verify.

show abstract

Potential effects of tidal flat variations on decomposition and nutrient dynamics of Phragmites australis , Suaeda salsa and Suaeda glauca litter in newly created marshes of the Yellow River estuary, China

Cited by 35 publications

References 72 publications

Dominance of Autochthonous Phytoplankton-Derived Particulate Organic Matter in a Low-Turbidity Temperate Estuarine Embayment, Gwangyang Bay, Korea

Dominance of Autochthonous Phytoplankton-Derived Particulate Organic Matter in a Low-Turbidity Temperate Estuarine Embayment, Gwangyang Bay, Korea

Release and Microbial Degradation of Dissolved Organic Carbon and Nitrogen from Phragmites australis and Suaeda salsa in the Wetland of the Yellow River Estuary

High Colonization Possibility of Some Species of Weeds in Suaeda salsa Community: From an Ecological Stoichiometry Perspective

Contact Info

Product

Resources

About