Invasion and ecological effects of exotic smooth cordgrass Spartina alterniflora in China

Wang, Meng; Feagin, Rusty A.; Innocenti, Rachel A.; Hu, Beibei; He, Ming; Li, Hongyuan

doi:10.1016/j.ecoleng.2019.105670

Cited by 79 publications

(61 citation statements)

References 49 publications

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“…alterniflora increased from 3956 to 55,468 ha during 1990–2014 (Lu et al, 2020; Zhang, Hu, et al, 2017), owing to its ability for rapid expansion and higher tolerance to salinity, S . alterniflora could replace native plants such as P. australis and Suaeda salsa , decreasing plant diversity (Liang et al, 2020; Meng et al, 2020). It was estimated that the annual aboveground biomass of S .…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis temperature and feedstock alter the functional groups and carbon sequestration potential of Phragmites australis‐ and Spartina alterniflora‐derived biochars

Wang

Bai

et al. 2021

GCB Bioenergy

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Biochar produced by pyrolysis of biomass under oxygen‐limited conditions has recently attracted increasing attention. To investigate the effects of feedstock and pyrolysis temperature on biochar characteristics, Phragmites australis straw and Spartina alterniflora straw were used to produce biochars at different temperatures from 300 to 500°C with an increment of 50°C. The biochars were characterized by their yields, ash contents, elemental compositions (i.e., carbon [C], hydrogen [H], oxygen [O], and nitrogen [N]), functional groups, dissolved organic carbon (DOC) contents, carbon sequestration potential, higher heating values (HHVs), and production costs. The results illustrated that pyrolysis temperature negatively affected biochar yields, H and O contents. In contrast, biochar produced at high temperature showed high ash contents, C contents, HHVs, and stronger aromaticity with low H/C and O/C ratios. In addition, S. alterniflora‐derived biochar (SB) contained higher ash content but lower C/H/N/O contents and HHVs than P. australis‐derived biochar (PB; p < 0.05). In addition, DOC contents in both SB and PB declined as temperature increased, and SB exhibited higher DOC contents than PB. Fourier transform infrared spectroscopy showed that absorption intensities of –OH, C=O, –CH, and –C–O–C‐stretching vibration declined with increasing temperature. The stability of the biochars was enhanced at high temperatures, and the biochar derived from S. alterniflora at 500°C might have a better carbon sequestration potential according to thermogravimetric analysis. Additionally, cost analysis showed that the production cost of biochar with large‐scale reactor was lower than that with bench‐scale reactor, and SB had a higher cost than PB due to the price of feedstock and drying process for the former. Our results could offer effective information on resource utilization of P. australis and S. alterniflora straw and are valuable for optimizing pyrolysis temperature to tune P. australis and S. alterniflora biochar properties for specific environmental usage.

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Section: Introductionmentioning

confidence: 99%

Pyrolysis temperature and feedstock alter the functional groups and carbon sequestration potential of Phragmites australis‐ and Spartina alterniflora‐derived biochars

Wang

Bai

et al. 2021

GCB Bioenergy

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“…Spartina alterniflora is a perennial halophyte that is native to the Atlantic coast of the Americas from Canada to Argentina ( Meng et al, 2020 ). S. alterniflora has high tolerance and adaptability to environmental stressors due to fast growth, well-developed below-ground tissues, high salt tolerance, and high reproductive capacity through both asexual and sexual reproduction, making it a good “ecosystem engineer” ( Simenstad and Thom, 1995 ; Qin et al, 1998 ; Crooks, 2002 ; Chung et al, 2004 ; Zhang et al, 2004 ; Chung, 2006 ; Huang and Zhang, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

“…In December of 1979, S. alterniflora was introduced into China ( Chung, 1993 ). In 1985, S. alterniflora in China covered ∼260 ha ( Meng et al, 2020 ). In 2003, S. alterniflora was listed as an invasive species by the State Environment Protection Administration of China.…”

Section: Introductionmentioning

confidence: 99%

Can the Non-native Salt Marsh Halophyte Spartina alterniflora Threaten Native Seagrass (Zostera japonica) Habitats? A Case Study in the Yellow River Delta, China

Yue

Zhou

et al. 2021

Front. Plant Sci.

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Seagrass meadows are critical ecosystems, and they are among the most threatened habitats on the planet. As an anthropogenic biotic invader, Spartina alterniflora Loisel. competes with native plants, threatens native ecosystems and coastal aquaculture, and may cause local biodiversity to decline. The distribution area of the exotic species S. alterniflora in the Yellow River Delta had been expanding to ca.4,000 ha from 1990 to 2018. In this study, we reported, for the first time, the competitive effects of the exotic plant (S. alterniflora) on seagrass (Zostera japonica Asch. & Graebn.) by field investigation and a transplant experiment in the Yellow River Delta. Within the first 3 months of the field experiment, S. alterniflora had pushed forward 14 m into the Z. japonica distribution region. In the study region, the area of S. alterniflora in 2019 increased by 516 times compared with its initial area in 2015. Inhibition of Z. japonica growth increased with the invasion of S. alterniflora. Z. japonica had been degrading significantly under the pressure of S. alterniflora invasion. S. alterniflora propagates sexually via seeds for long distance invasion and asexually by tillers and rhizomes for short distance invasion. Our results describe the invasion pattern of S. alterniflora and can be used to develop strategies for prevention and control of S. alterniflora invasion.

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“…Here, we adopt a biogeographic perspective to test whether the mangrove fragmentation has impacts on the invasion magnitude of an invasive saltmarsh species (Spartina alterniflora) along latitudinal gradient in Southeastern China, a region that has undergone widespread S. alterniflora invasion over the last several decades (Meng et al, 2020). We characterize mangrove fragmentation from three key aspects, including fragment size, edge, and shape, which have been widely used in fragmentation researches (Haddad et al, 2015;Mendes et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Spatially non-continuous relationships between biological invasion and fragmentation of mangrove forests

Zhang

et al. 2021

Preprint

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Rapid and large-scale biological invasion results in widespread biodiversity loss and degradation of essential ecosystem services, especially in mangrove forests. Recent evidence suggests that the establishment and dispersal of invasive species may exacerbated in fragmented landscape, but the influence of mangrove fragmentation on coastal biological invasion at landscape scale remains largely unknown. Here, using the derived 10-m resolution coastal wetland map in southeast coast of China, we examine the relationships between fragmentation of mangrove forests and salt marsh invasion magnitude and quantify the geographical variations of the relationships across a climatic gradient. Our results show that mangrove forests with small size, large edge proportion, and regular boundary shape tend to suffer more serious salt marsh invasions, indicating a positive correlation between mangrove fragmentation and its invaded magnitude. In particular, such fragmentation-invasion relationships in subtropics are shown to be more intensive than in tropic. Our findings provide the first spatially explicit evidence of the relationships between mangrove fragmentation and biological invasion on a landscape scale, and highlight an urgent need for conservation and management actions to improve mangrove connectivity, which will increase resistance to invasions, especially for small-size subtropical mangrove forests.

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Invasion and ecological effects of exotic smooth cordgrass Spartina alterniflora in China

Cited by 79 publications

References 49 publications

Pyrolysis temperature and feedstock alter the functional groups and carbon sequestration potential of Phragmites australis‐ and Spartina alterniflora‐derived biochars

Pyrolysis temperature and feedstock alter the functional groups and carbon sequestration potential of Phragmites australis‐ and Spartina alterniflora‐derived biochars

Can the Non-native Salt Marsh Halophyte Spartina alterniflora Threaten Native Seagrass (Zostera japonica) Habitats? A Case Study in the Yellow River Delta, China

Spatially non-continuous relationships between biological invasion and fragmentation of mangrove forests

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