Growth responses and adaptations of the emergent macrophyte<i>Acorus calamus</i>Linn. to different water-level fluctuations

Hua, Wei; Cheng, Shuiping; He, Feng; Liang, Wei; Wu, Zhenbin

doi:10.1080/02705060.2013.833142

Cited by 11 publications

(11 citation statements)

References 42 publications

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“…Furthermore, the cyclic water level fluctuations may result in intermittent periods of resource limitation for H . verticillata and the degree of limitation should be commensurate with the amplitude of water level fluctuations [ 36 , 37 ]. Consequently, this species was adequate in static water and responded negatively to increasing fluctuating amplitudes.…”

Section: Discussionmentioning

confidence: 99%

Do Amplitudes of Water Level Fluctuations Affect the Growth and Community Structure of Submerged Macrophytes?

et al. 2016

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Submerged macrophytes are subjected to potential mechanical stresses associated with fluctuating water levels in natural conditions. However, few experimental studies have been conducted to further understand the effects of water level fluctuating amplitude on submerged macrophyte species and their assemblages or communities. We designed a controlled experiment to investigate the responses of three submerged macrophyte species (Hydrilla verticillata, Ceratophyllum demersum and Elodea nuttallii) and their combinations in communities to three amplitudes (static, ± 30 cm, ± 60 cm) of water level fluctuations. Results showed that water level fluctuating amplitude had little effects on the community performance and the three tested species responded differently. H. verticillata exhibited more growth in static water and it was negatively affected by either of the water level fluctuations amplitude, however, growth parameters of H. verticillata in two fluctuating water level treatments (i.e., ± 30 cm, ± 60 cm) were not significantly different. On the other hand, the growth of C. demersum was not significantly correlated with different amplitude treatments. However, it became more abundant when water levels fluctuated. E. nuttallii was inhibited by the two fluctuating water level treatments, and was less in growth parameters compared to the other species especially in water level fluctuating conditions. The inherent differences in the adaptive capabilities of the tested species indicate that C. demersum or other species with similar responses may be dominant species to restore submerged macrophyte communities with great fluctuating water levels. Otherwise, H. verticillata, E. nuttallii or other species with similar responses could be considered for constructing the community in static water conditions.

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Section: Discussionmentioning

confidence: 99%

Do Amplitudes of Water Level Fluctuations Affect the Growth and Community Structure of Submerged Macrophytes?

et al. 2016

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“…Uplands slow runoff, infiltrate water, and filter sediment. Little is known about the influence of shoreline conditions on the development and persistence of macrophyte communities (Feldman and Maemets 2004;Van Geest et al 2005;Feldmann and Noges 2007;Tağil 2007;Wei et al 2014).…”

Section: Introductionmentioning

confidence: 99%

The relationship between land management and the nature of helophytes in small lakes (Eastern Poland)

Sender

Grabowski

2016

Limnological Review

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The aim of this study was to determine the relationship between the development of rush zones in small lakes and the utilization and condition of surrounding lands. Generally, the width of the helophyte zone increased along shores with gentle slopes (>5˚) that were covered with vegetation. The most favourable conditions for rush development and spread were along sloped areas bordered by farmlands and rural developments. In addition, pasturelands that developed on top of peat accumulation adjacent to lakes were found to facilitate the development of rushes. We observed a positive effect of anthropogenic development, especially agriculture and infrastructure, on stem density and total biomass of Phragmites austalis populations in the lakes studied. However, individual stem biomass of plants was lower. In different parts of the studied lakes, macrophyte distribution patterns were influenced by environmental conditions including nutrient availability, wind exposure, and bottom slope. The poorest macrophyte communities were found in areas within the lakes that were shaded by trees growing on neighboring banks and where slopes were forested rush zones were absent altogether.

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“…A number of laboratory studies have investigated the growth of wetland vegetation in response to water table depths and found the decline of a groundwater table can have a negative impact on plant growth (Amlin & Rood, 2002;Deegan et al, 2007;Imada et al, 2010;Wei et al, 2014). Laboratory experiments may be unsuitable for examining community structure response to groundwater depths; however, controlled conditions create the advantage of being able to test the response of plants to extreme groundwater levels.…”

Section: Interactions Between Wetland Vegetation and Groundwatermentioning

confidence: 99%

“…A number of studies have investigated how wetland vegetation growth responds to controlled water level fluctuations, such as rate, frequency and depth of controlled flooding and drought conditions (Deegan et al, 2007;Smith & Brock, 2007;Wei et al, 2014). Deegan et al (2007) studied the impact of ±0cm, ±15cm, ±30cm and ±45cm…”

Section: Introductionmentioning

confidence: 99%

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Laboratory study of subtropical wetland plant Lepironia articulata’s water use and sensitivity to groundwater availability

Xiao¹

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Few ecohydraulic studies have been conducted on groundwater dependent wetland ecosystems despite their ecological and environmental importance. In particular, there is a substantial gap in quantifying plant and groundwater interaction. Our study considered groundwater-vegetation-atmosphere interaction for a wetland reed species. It has improved our understanding of the dynamic feedback between the subtropical wetland emergent plant Lepironia articulata and groundwater, especially in the context of developing plant response models. More specifically, we have generated growth response functions for Lepironia under water stressed conditions (different depths to groundwater).Concurrently, we measured the response of groundwater discharge (i.e., via evapotranspiration) for different depths to groundwater . Laboratory experiments and new methodologies have been developed to control groundwater drawdown rates and amplitudes in order to study these interactions. The experiments use a column lysimeter setup where water levels are controlled at 0, 30 and 60 cm after a fast drawdown rate of 8 cm/day. The response of Lepironia to groundwater drawdown is investigated through population changes, rhizome horizontal development, green culm lengths, green culm areas with time and the distribution of biomass at the start and the end of the experiment; ET rates are measured using a Mariotte bottle -load cell system. An L-system based L-Lepironia model is created to simulate the growth and structural development of Lepironia from the experimental results.Our results show that groundwater drawdown to 60 cm causes significant water stress to, and can be regarded as a survival threshold for, Lepironia. Groundwater drawdown to 30 cm causes a reduction in the growth of Lepironia and resulting ET rates compared to the unstressed 0 cm drawdown groups.The physical growth responses of Lepironia also have an impact on the amount of water discharged from the system. It is found that the long-term trend of ET for Lepironia is mostly governed by leaf areas while the short-term changes in ET are controlled by local meteorological conditions. Based on these results, we have developed empirical equations to predict the change in total leaf areas with time and long-term daily ET for Lepironia at different water table depths taking seasonal differences into account. Furthermore, the L-Lepironia model is able to capture and predict the growth and development of Lepironia in response to changing groundwater and seasonal conditions; its extension shows a better ET prediction than using the empirical equations. Our study demonstrates a new methodology for quantifying plant-groundwater interactions and may have implications for future plant-groundwater feedback and coupled model studies.

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Growth responses and adaptations of the emergent macrophyteAcorus calamusLinn. to different water-level fluctuations

Cited by 11 publications

References 42 publications

Do Amplitudes of Water Level Fluctuations Affect the Growth and Community Structure of Submerged Macrophytes?

Do Amplitudes of Water Level Fluctuations Affect the Growth and Community Structure of Submerged Macrophytes?

The relationship between land management and the nature of helophytes in small lakes (Eastern Poland)

Laboratory study of subtropical wetland plant Lepironia articulata’s water use and sensitivity to groundwater availability

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