Consequences of short-term C4 plant Spartina alterniflora invasions for soil organic carbon dynamics in a coastal wetland of Eastern China

Yang, Wen; Zhao, Hui; Chen, Xinglong; Yin, Shenglai; Cheng, Xiaoli; An, Shuqing

doi:10.1016/j.ecoleng.2013.09.056

Cited by 113 publications

(76 citation statements)

References 51 publications

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“…This area is characterized as warm temperate with an average annual temperature of 13.8 °C, average annual precipitation of 1000 mm, and average annual sea water salinity of 3.09%16. JYWNNRRB was designated as an internationally important wetland site (Ramsar) in 2002.…”

Section: Methodsmentioning

confidence: 99%

Spartina alterniflora invasion alters soil microbial community composition and microbial respiration following invasion chronosequence in a coastal wetland of China

Yang

Jeelani

Leng

et al. 2016

Sci Rep

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The role of exotic plants in regulating soil microbial community structure and activity following invasion chronosequence remains unclear. We investigated soil microbial community structure and microbial respiration following Spartina alterniflora invasion in a chronosequence of 6-, 10-, 17-, and 20-year-old by comparing with bare flat in a coastal wetland of China. S. alterniflora invasion significantly increased soil moisture and salinity, the concentrations of soil water-soluble organic carbon and microbial biomass carbon (MBC), the quantities of total and various types of phospholipid fatty acids (PLFAs), the fungal:bacterial PLFAs ratio and cumulative microbial respiration compared with bare flat. The highest MBC, gram-negative bacterial and saturated straight-chain PLFAs were found in 10-year-old S. alterniflora soil, while the greatest total PLFAs, bacterial and gram-positive bacterial PLFAs were found in 10- and 17-year-old S. alterniflora soils. The monounsaturated:branched PLFAs ratio declined, and cumulative microbial respiration on a per-unit-PLFAs increased following S. alterniflora invasion in the chronosequence. Our results suggest that S. alterniflora invasion significantly increased the biomass of soil various microbial groups and microbial respiration compared to bare flat soil by increasing soil available substrate, and modifying soil physiochemical properties. Soil microbial community reached the most enriched condition in the 10-year-old S. alterniflora community.

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Section: Methodsmentioning

confidence: 99%

Spartina alterniflora invasion alters soil microbial community composition and microbial respiration following invasion chronosequence in a coastal wetland of China

Yang

Jeelani

Leng

et al. 2016

Sci Rep

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“…was founded in 1983, and is one of the best-preserved natural salt marshes in China (Yang et al 2013;Zhou et al 2009). It was recognized as a part of the UNESCO World Network of Biosphere Reserves in 1992 and is critical to China's biodiversity conservation (Yang et al 2015).…”

Section: Study Areamentioning

confidence: 98%

Effects of reclamation on heavy metal pollution in a coastal wetland reserve

Yang

Jiang

et al. 2016

J Coast Conserv

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Owing to accelerating reclamation activities in the coastal wetland reserves, it is of great importance to analyze the effects of wetland reclamation on heavy metal pollution in these areas. Soil samples were collected from reclamation and natural habitats in Yancheng National Nature Reserve for Coastal Rare Birds in Jiangsu, China to investigate the effects of reclamation on the total amounts, availability, and vertical distribution of seven elemental heavy-metal pollutants. In general, the total amount and availability each element were relatively low in the two habitats and were classified as Bno pollution^. Reclamation was found to significantly increase the total amount of As, Cu, and Zn as well as the pollution degrees of As, Cr, and Zn. The availability of Cu, Pb, Cd, and Cr can also be significantly affected by reclamation. Furthermore, surface-accumulation patterns of the total amounts of these heavy metals could be observed in both habitats, and the availabilities of these elements were higher in deeper soils. Reclamation also had significant impacts on the vertical distribution of Cu, Pb, Cd, and Zn. It is essential to properly monitor nearby aquacultural activities, freshwater irrigation, and traffic pollution during plant harvest to alleviate the negative effects of these human activities.

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“…)。滨海湿地生态系统的有机碳主要有外源输入和内源输入两种途径。外源输入通过水源载体, 例如潮汐等横向通量带来的悬浮颗粒和溶解的有机碳 (Hemminga et al, 1996)。内源输入包括土壤有机质与凋落物分解、浮游生物代谢等 (Harvey & Mannino, 2001)。滨海湿地受到河水径流和海洋潮汐的影响, 因此水流和泥沙中携带的大量悬浮有机物可以通过横向通量进入土壤碳库 (Wolaver & Spurrier, 1988)。互花米草具有密集粗壮的茎秆和发达的地下根系 (Liao et al, 2007), 其缓流消浪的能力更促进了泥沙的沉降和淤积, 因而在互花米草入侵对生态系统碳收支影响的研究中, 潮汐活动导致的横向通量是其中的重要组成部分 (Cheng et al, 2006(Cheng et al, , 2008Zhang et al, 2010) 碳含量 , 其周转较慢, 因此互花米草能够明显增加土壤有机碳和总氮 (Cheng et al, 2006(Cheng et al, , 2008Liao et al, 2007), 并在时间尺度上表现出累积效应 Yang et al, 2013) Mixing diagram for a mixing model utilizing one isotope value and two sources for the soil organic carbon pool, the triangles represent the soils of SA-4 sampling points, the POC and SA represent sediment and Spartina alterniflora plant sources, respectively.…”

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Contribution of invasive species Spartina alterniflora to soil organic carbon pool in coastal wetland: Stable isotope approach

Wang¹,

Zhang²,

Xiong³

et al. 2015

Chinese Journal of Plant Ecology

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Consequences of short-term C4 plant Spartina alterniflora invasions for soil organic carbon dynamics in a coastal wetland of Eastern China

Cited by 113 publications

References 51 publications

Spartina alterniflora invasion alters soil microbial community composition and microbial respiration following invasion chronosequence in a coastal wetland of China

Spartina alterniflora invasion alters soil microbial community composition and microbial respiration following invasion chronosequence in a coastal wetland of China

Effects of reclamation on heavy metal pollution in a coastal wetland reserve

Contribution of invasive species Spartina alterniflora to soil organic carbon pool in coastal wetland: Stable isotope approach

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