Impacts of Spartina alterniflora invasion on soil organic carbon and nitrogen pools sizes, stability, and turnover in a coastal salt marsh of eastern China

Yang, Wen; An, Shuqing; Zhao, Hui; Xu, Lingqian; Qiao, Yajun; Cheng, Xiaoli

doi:10.1016/j.ecoleng.2015.11.010

Cited by 82 publications

(37 citation statements)

References 51 publications

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“…The soil organic carbon is mainly derived from autocthonous carbon sources [8], such as tree litter and root decomposition [4,6]. Therefore, a vegetation composition shift would greatly affect the quality and quantity of plant material input to the soil and change the soil organic carbon pool and dynamics [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…A shift of the vegetation community related to plant invasion or restoration can dramatically change soil organic matter content and its dynamics [9,16,17]. Short term invasion of S. alterniflora increased the soil carbon content by 0.37-7.43 times relative to the mudflat and native saltmarsh communities [13] in the Yangtz River Estuary. The highest carbon content in a S. alterniflora community was observed at 40-60 cm depth, owing to the below ground biomass in Jiuduansha Island [9].…”

Section: Introductionmentioning

confidence: 99%

“…However, only the top 10 cm of soil, the organic carbon content of the mudflat was significantly increased due to invasive Spartina in mangrove ecosystems in Zhangjiang Estuary [10]. The effect of invasive species on native ecosystems can be influenced by vegetation biomass, litter production, and quality and microbiological activities [12,13,18,19]. Therefore, it is useful to conduct more field studies on the invasive effects of S. alterniflora on soil organic carbon dynamics in different coastal wetland ecosystems [17].…”

Section: Introductionmentioning

confidence: 99%

“…Despite its significance, few studies have focused on the invasive effects of S. alterniflora on the dynamics of soil labile carbon. Inconsistent results have been reported between saltmarsh and mangrove ecosystems [13,17,32]. It is necessary to conduct additional studies on the effects of invasion and restoration on soil labile organic carbon pools to determine the process that is responsible for carbon sequestration and preservation in coastal wetland ecosystems.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Invasive Spartina alterniflora Loisel. and Subsequent Ecological Replacement by Sonneratia apetala Buch.-Ham. on Soil Organic Carbon Fractions and Stock

Feng

Wang

Shujuan

et al. 2019

Forests

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Background and Objectives: The rapid spread of invasive Spartina alterniflora Loisel. in the mangrove ecosystems of China was reduced using Sonneratia apetala Buch.-Ham. as an ecological replacement. Here, we studied the effects of invasion and ecological replacement using S. apetala on soil organic carbon fractions and stock on Qi’ao Island. Materials and Methods: Seven sites, including unvegetated mudflat and S. alterniflora, rehabilitated mangroves with different ages (one, six, and 10 years) and mature native Kandelia obovata Sheue, Liu, and Yong areas were selected in this study. Samples in the top 50 cm of soil were collected and then different fractions of organic carbon, including the total organic carbon (TOC), particulate organic carbon (POC), soil water dissolved carbon (DOC) and microbial biomass carbon (MBC), and the total carbon stock were measured and calculated. Results: The growth of S. alterniflora and mangroves significantly increased the soil TOC, POC, and MBC levels when compared to the mudflat. S. alterniflora had the highest soil DOC contents at 0–10 cm and 20–30 cm and the one-year restored mangroves had the highest MBC content. S. alterniflora and mangroves both had higher soil total carbon pools than the mudflat. Conclusions: The invasive S. alterniflora and young S. apetala forests had significantly lower soil TOC and POC contents and total organic carbon than the mature K. obovata on Qi’ao Island. These results indicate that ecological replacement methods can enhance long term carbon storage in Spartina-invaded ecosystems and native mangrove species are recommended.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Invasive Spartina alterniflora Loisel. and Subsequent Ecological Replacement by Sonneratia apetala Buch.-Ham. on Soil Organic Carbon Fractions and Stock

Feng

Wang

Shujuan

et al. 2019

Forests

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“…In the Yangtze Estuary of China, the introduction and spread of S. alterniflora has resulted in a decrease in Scirpus mariqueter communities, a significant food resource for rare migrant birds (Chen et al, 2004). Some studies also suggested that S. alterniflora invasion has altered benthic community composition and diversity (Luiting et al, 1997;Neira et al, 2006) and impacted nutrient cycling processes (Enrefeld, 2003;Gao et al, 2018), endophytic bacterial community structures and diversity (Liao et al, 2018) and the soil ecosystem of coastal wetlands (Chen et al, 2007;Adams et al, 2012;Yang et al, 2016). Liu et al (2019) revealed that seven national nature reserves in China had invaded by S. alterniflora at present.…”

Section: Introductionmentioning

confidence: 99%

Geographical Variation and Influencing Factors of Spartina alterniflora Expansion Rate in Coastal China

Liu

Chang

et al. 2020

Chin. Geogr. Sci.

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Biological invasion poses a huge threat to ecological security. Spartina alterniflora was introduced into China in 1979, and its arrival corresponded with negative effects on native ecosystems. To explore geographical variation of its expansion rate in coastal China, we selected 43 S. alterniflora sites from Tianjin Coastal New Area to Beihai. The area expansion rate, expansion rate paralleling and vertical to the shoreline were analysed based on Landsat images and field survey in 2015. Simple Ocean Data Assimilation (SODA) and climate data were collected to statistically analyse the influential factors of expansion rate. Results showed that significant difference of S. alterniflora area expansion rate among different latitude zones (P < 0.01), increasing from 6.08% at southern (21°N-23°N) to 19.87% in Bohai Bay (37°N-39°N) along latitude gradient. There was a significant difference in expansion rate vertical to shoreline in different latitude zones (P < 0.01) with the largest occurring in Bohai Bay (256 m/yr, 37°N-39°N), and showed an decreasing tendency gradually from north to south. No significant difference and latitudinal clines in expansion rate paralleling to shoreline were observed. Expansion rate had significant negative correlation with mean seawater temperature, the lowest seawater temperature, current zonal velocity and meridional velocity and presented a reducing trend as these biotic factors increased; however, they were not significantly correlated with the highest seawater temperature and mean seawater salinity. We identified significant correlations between expansion rate and annual mean temperature, the lowest temperature in January and annual precipitation, but there was little correlation with annual diurnal difference in temperature and the highest temperature in July. The rapid expansion rate in high-latitude China demonstrated a higher risk of potential invasion in the north; dynamic monitoring and control management should be established as soon as possible.

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Leaf litter decomposition and its drivers differ between an invasive and a native plant: Management implications

Cheng

Liu

Zhang

et al. 2022

Ecological Applications

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Litter decomposition is a key process of the carbon cycle in terrestrial and aquatic ecosystems. The dominant conceptual model of litter decomposition assumes that environmental conditions, litter traits, and decomposer composition control litter decomposition in a decreasing order, yet whether this hierarchical model applies to both invasive and native plant species is unknown. Here, by comparing a widespread invasive plant and its native counterpart in Chinese coastal saltmarshes, we aimed to examine whether the hierarchy of factors controlling litter decomposition varies with plant species in the face of plant invasions. Leaf litter of invasive Spartina alterniflora and native Phragmites australis was collected across an 18° latitudinal range to capture wide variation in litter traits. These leaf litter samples were transported to three saltmarsh sites of different latitudes and were incubated in litterbags varying in mesh size (0.1, 2, and 5 mm) to manipulate decomposer composition. After 90‐day incubation, we found a parallel latitudinal pattern in leaf litter decomposition rate (k) between S. alterniflora and P. australis regardless of saltmarsh site and mesh size. Nonetheless, the k value of S. alterniflora was 2.2‐fold higher than that of P. australis. Moreover, there was a shift in the hierarchy of factors controlling k values between S. alterniflora and P. australis: environmental conditions (climate and soil) dominated other factors in P. australis, whereas litter traits contributed more than environmental conditions in S. alterniflora. Overall, our findings show that leaf litter decomposition and its dominant controlling factors across broad geographical ranges can vary with plant invasions, having important implications for managing invasive plants in the context of conserving coastal blue carbon.

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Impacts of Spartina alterniflora invasion on soil organic carbon and nitrogen pools sizes, stability, and turnover in a coastal salt marsh of eastern China

Cited by 82 publications

References 51 publications

Effects of Invasive Spartina alterniflora Loisel. and Subsequent Ecological Replacement by Sonneratia apetala Buch.-Ham. on Soil Organic Carbon Fractions and Stock

Effects of Invasive Spartina alterniflora Loisel. and Subsequent Ecological Replacement by Sonneratia apetala Buch.-Ham. on Soil Organic Carbon Fractions and Stock

Geographical Variation and Influencing Factors of Spartina alterniflora Expansion Rate in Coastal China

Leaf litter decomposition and its drivers differ between an invasive and a native plant: Management implications

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