Plant zonation patterns reflected by the differences in plant growth, biomass partitioning and root traits along a water level gradient among four common vascular plants in freshwater marshes of the Sanjiang Plain, Northeast China

Song, Chen; Zhang, Xinhou; Mao, Rong; Guo, Yuedong; Gao, Fuyuan

doi:10.1016/j.ecoleng.2015.04.054

Cited by 33 publications

(24 citation statements)

References 30 publications

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“…Other studies have also shown that the ratio of belowground to aboveground biomass declines under stressful conditions (Grace and Wetzel 1982;Grace 1989;Turner et al 2004;Martin and Shaffer 2005;Shi et al 2015), suggesting that translocation of energy from belowground reserves to the photosynthesizing parts of the plant is a critical mechanism for maintaining resilience (Gallagher 1983). In this study, trends in belowground production reflected trends in total production, which declined from years 1 to 2; however, aboveground production remained constant over time.…”

Section: Discussionmentioning

confidence: 66%

A Landscape-Scale Assessment of Above- and Belowground Primary Production in Coastal Wetlands: Implications for Climate Change-Induced Community Shifts

Stagg

Schoolmaster

Piazza

et al. 2016

Estuaries and Coasts

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Above-and belowground production in coastal wetlands are important contributors to carbon accumulation and ecosystem sustainability. As sea level rises, we can expect shifts to more salt-tolerant communities, which may alter these ecosystem functions and services. Although the direct influence of salinity on species-level primary production has been documented, we lack an understanding of the landscapelevel response of coastal wetlands to increasing salinity. What are the indirect effects of sea-level rise, i.e., how does primary production vary across a landscape gradient of increasing salinity that incorporates changes in wetland type? This is the first study to measure both above-and belowground production in four wetland types that span an entire coastal gradient from fresh to saline wetlands. We hypothesized that increasing salinity would limit rates of primary production, and saline marshes would have lower rates of above-and belowground production than fresher marshes. However, along the Northern Gulf of Mexico Coast in Louisiana, USA, we found that aboveground production was highest in brackish marshes, compared with fresh, intermediate, and saline marshes, and belowground production was similar among all wetland types along the salinity gradient. Multiple regression analysis indicated that salinity was the only significant predictor of production, and its influence was dependent upon wetland type. We concluded that (1) salinity had a negative effect on production within wetland type, and this relationship was strongest in the fresh marsh (0-2 PSU) and (2) along the overall landscape gradient, production was maintained by mechanisms at the scale of wetland type, which were likely related to plant energetics. Regardless of wetland type, we found that belowground production was significantly greater than aboveground production. Additionally, inter-annual variation, associated with severe drought conditions, was observed exclusively for belowground production, which may be a more sensitive indicator of ecosystem health than aboveground production.

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Section: Discussionmentioning

confidence: 66%

A Landscape-Scale Assessment of Above- and Belowground Primary Production in Coastal Wetlands: Implications for Climate Change-Induced Community Shifts

Stagg

Schoolmaster

Piazza

et al. 2016

Estuaries and Coasts

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“…The length of fresh roots was analyzed with a root analysis system (Delta-T Scan; Cambridge, UK). The specific root length (mÁg À1 ) was determined by the ratio of total length of 1 order root (> 2 mm) to its dry mass (Shi et al 2015).…”

Section: Plant Functional Traitsmentioning

confidence: 99%

“…These species would, therefore, have greater height, individual biomass, specific leaf area (Mommer et al 2006;Panda et al 2008;Fu et al 2015, Garssen et al 2015Luo et al 2016) (Table 1). In contrast, some species adopt the quiescence strategy, in which all plant materials remain submerged underwater, while their traits show much smaller responses to flooding than those adopting an escape strategy (Colmer and Voesenek 2009;Shi et al 2015) (Table 1). However, there is still uncertainty regarding the relationship between trait responses to flooding and species' distribution along the flooding gradient (Garssen et al 2015;Lou et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Testing mechanisms underlying responses of plant functional traits to flooding duration gradient in a lakeshore meadow

Lan

Huang

Chen

et al. 2019

Journal of Freshwater Ecology

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Flooding duration is a major factor determining wetland plant growth and community composition. While there have been extensive studies on how direct effects of flooding duration on plant functional traits, very few have tested the indirect effects on these traits, including those arising from competition. We hypothesized that there would be a shift in importance of competition ability and flooding tolerance to functional traits along the flooding duration gradient. We investigated plant functional traits along a flooding duration gradient for two-dominant wetland plant species (Carex cinerascens and Phalaris arundinacea) in a lakeshore meadow of Poyang Lake, China. We found that these two species tended to have different strategies to adapt to flooding stress. P. arundinacea tended to adopt escape strategy with high growth rate (e.g. greater height, specific leaf area, and leaf N and P content) at longer flooding duration, while C. cinerascens tended to adopt more quiescence strategy, with only 5 of 13 of its traits showing a significant response. With shorter flooding duration, both species tended to have lower leaf N and P content, indicating greater nutrient limitation. Meanwhile, relative abundance of C. cinerascens with relatively higher belowground nutrient competition ability (i.e. greater root/shoot biomass ratio) decreased with flooding duration. These results suggest that belowground competition intensifies at shorter flooding duration, because of increased nutrient limitation with increased productivity. Therefore, our study indicates that both flooding stress and nutrient competition could affect plant functional traits along a flooding duration gradient.

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“…Root morphology determines the ability of the plant to acquire soil resources (Costa et al, 2000;Shi et al, 2015). R. pseudoacacia seedlings decreased TRL and TRSA, which suggested that the ability of ion and water uptake decreased (Wang et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Effects of salt stress on eco-physiological characteristics in Robinia pseudoacacia based on salt-soil rhizosphere

Mao

Zhang

Cao

et al. 2016

Science of The Total Environment

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Robinia pseudoacacia is the main arbor species in the coastal saline-alkali area of the Yellow River Delta. Because most studies focus on the aboveground parts, detailed information regarding root functioning under salinity is scare. Root traits of seedlings of R. pseudoacacia including morphological, physiological and growth properties under four salinity levels (CK, 1‰, 3‰ and 5‰ NaCl) were studied by the pot experiments to better understand their functions and relationships with the shoots. The results showed that seedling biomass decreased by the reduction of root, stem and leaf biomass with the increase of salinity levels. With increasing salinity levels, total root length (TRL) and total root surface area (TRSA) decreased, whereas specific root length (SRL) and specific root area (SRA) increased. Salt stress decreased root activity (RA) and the maximum net photosynthetic rate (Amax) and increased the water saturation deficit (WSD) significantly in the body. Correlation analyses showed significantly correlations between root morphological and physiological parameters and seedling biomass and shoot physiological indexes. R. pseudoacacia seedlings could adapt to 1‰ salinity by regulating the root morphology and physiology, but failed in 5‰ salinity. How to adjust the water status in the body with decreasing water uptake by roots was an important way for R. pseudoacacia seedlings to adapt to the salt stress.

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Plant zonation patterns reflected by the differences in plant growth, biomass partitioning and root traits along a water level gradient among four common vascular plants in freshwater marshes of the Sanjiang Plain, Northeast China

Cited by 33 publications

References 30 publications

A Landscape-Scale Assessment of Above- and Belowground Primary Production in Coastal Wetlands: Implications for Climate Change-Induced Community Shifts

A Landscape-Scale Assessment of Above- and Belowground Primary Production in Coastal Wetlands: Implications for Climate Change-Induced Community Shifts

Testing mechanisms underlying responses of plant functional traits to flooding duration gradient in a lakeshore meadow

Effects of salt stress on eco-physiological characteristics in Robinia pseudoacacia based on salt-soil rhizosphere

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