Hydrological and microtopographic effects on community ecological characteristics of Carex schmidtii tussock wetland

Qi, Qing; Zhang, Dongjie; Zhang, Mingye; Tong, Shuo; An, Yu; Wang, Xuehong; Zhu, Guanglei

doi:10.1016/j.scitotenv.2021.146630

Cited by 17 publications

(6 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the spatial distribution of plant and wrack can provide a habitat for small animals. [8] In this ecosystem, we observe that little haystacks grow on top of the old ones; these may be induced by diffusion and the interaction of promotion and inhibition of plant and wrack. Therefore, Koppel proposed a reaction-diffusion model…”

Section: Introductionmentioning

confidence: 86%

Turing pattern selection for a plant–wrack model with cross-diffusion

Sun

Wang

et al. 2023

Chinese Phys. B

View full text Add to dashboard Cite

In this paper, we investigate the Turing instability and pattern formation mechanism of a Plant-Wrack model with both self-diffusion and cross-diffusion terms. Firstly, we study the effect of self-diffusion on the stability of equilibrium. Secondly, we derive the conditions for the occurrence of the Turing patterns induced by cross-diffusion based on self-diffusion stability. Thirdly, we analyze the pattern selection by using the amplitude equation and obtain the exact parameter ranges of different types of patterns, including stripe patterns, hexagonal patterns, and mixed states. Finally, numerical simulations confirm the theoretical results.

show abstract

Section: Introductionmentioning

confidence: 86%

Turing pattern selection for a plant–wrack model with cross-diffusion

Sun

Wang

et al. 2023

Chinese Phys. B

View full text Add to dashboard Cite

show abstract

“…Dominant soil types are marsh and meadow soil. The typical marsh plants are Phragmites australis, Typha orientalis, Bolboschoenus planiculmis, C. schmidtii, Deyeuxia angustifolia, Suaeda glauca, and Trapa japonica (Ding et al, 2021;Qi et al, 2021a).…”

Section: Study Areamentioning

confidence: 99%

“…Momoge Wetland Nature Reserve (MWNR), an international wetland, appeals to a variety of rare birds like white stork, northern goshawk, lesser kestrel, and white-naped crane (Jiang et al, 2016;Ding et al, 2021). Carex schmidtii, a native tussockforming species, is widely distributed in the riparian wetland along the Nenjiang River in MWNR (Zhang et al, 2019b;Qi et al, 2021a), which has abundant root systems and storage of biological elements (i.e., C, N, P, Si), and was capable of supporting a rich plant diversity (Lawrence and Zedler, 2011;Opdekamp et al, 2012;Zhang et al, 2019a;Qi et al, 2021a). Therefore, C. schmidtii tussock wetlands play important roles in nutrient cycling and biodiversity supporting.…”

Section: Introductionmentioning

confidence: 99%

Effect of Wetland Restoration and Degradation on Nutrient Trade-Off of Carex schmidtii

et al. 2022

Self Cite

View full text Add to dashboard Cite

Plant nutrient trade-off, a growth strategy, regulates nutrient stoichiometry, allocation and stoichiometric relationships, which is essential in revealing the stoichiometric mechanism of wetland plants under environmental fluctuations. Nonetheless, how wetland restoration and degradation affect nutrient trade-off of wetland plants was still unclear. In this study, field experiments were conducted to explore the dynamic of nutrient stoichiometry and nutrient limitation of Carex schmidtii under wetland restoration and degradation. Plant nutrient stoichiometry and stoichiometric relationships among natural (NW), restored (RW), and degraded (DW) tussock wetlands were examined. Results showed that nutrient stoichiometry of C. schmidtii was partly affected by wetland restoration and degradation, and growth stages. The N:P and N:K ratios indicated N-limitation for the growth of C. schmidtii. Robust stoichiometric scaling relationships were quantified between some plant nutrient concentrations and their ratios of C. schmidtii. Some N- and P-related scaling exponents are varied among NW, RW, and DW. PCA indicated that wetland restoration and degradation had significantly affected on the nutrient trade-offs of C. schmidtii (May∼August). Compared to NW, nutrient trade-off in RW was more similar to DW. Carex schmidtii had significant correlation between most nutrients and their ratios, and the SEM indicated that plant P and K concentrations had a high proportional contribution to plant C and N concentrations. Insights into these aspects are expected to contribute to a better understanding of nutrient trade-off of C. schmidtii under wetland restoration and degradation, providing invaluable information for the protection of C. schmidtii tussock wetlands.

show abstract

“…When flood recession is advanced, the growing period of Carex community is extended, and it forms a closed community (with high coverage and high density), hindering the survival of other plant species, resulting in a decrease in species richness and diversity (Pan et al, 2006;Li et al, 2013;Wang et al, 2019). However, Miscanthus community is relatively tall and can form stratification, providing a space for the growth of other short herbs, resulting in higher species richness and diversity (Qin et al, 2013;Wang et al, 2016;Qi et al, 2021).…”

Section: Influence Of Different Hydrological Variables On Plant Community Traitsmentioning

confidence: 99%

Community Trait Responses of Three Dominant Macrophytes to Variations in Flooding During 2011–2019 in a Yangtze River-Connected Floodplain Wetland (Dongting Lake, China)

et al. 2021

View full text Add to dashboard Cite

In lacustrine wetlands connected to rivers, the changes in flood regimes caused by hydrological projects lead to changes in the community traits of dominant macrophytes and, consequently, influence the structure and function of wetland vegetation. However, community trait responses of macrophytes to the timing and duration of flood disturbance have been rarely quantified. In 2011–2019, we investigated plant species diversity, density, and biomass in three dominant macrophyte communities (Carex brevicuspis C.B. Clarke, Miscanthus sacchariflorus (Maxim.) Hackel, and Polygonum hydropiper L.) through monthly field surveys in Dongting Lake wetlands. Partial least squares regressions were used to analyze how the variations in hydrological regimes affected plant community traits. Apparent inter-annual fluctuations in plant community traits were detected during 2011–2019. The species richness and Shannon index of diversity of Miscanthus and Polygonum communities increased, whereas the Shannon index of diversity of Carex community decreased. Variation in flooding had a greater effect on Polygonum and Carex community traits than on Miscanthus community traits. Flooding disturbed all plant communities, especially when the duration and timing varied. Shorter inundation periods caused the biomass of Miscanthus community to decline, and that of Carex and Polygonum communities to increase. Earlier flood recession caused the species richness and Shannon index of diversity of Polygonum and Miscanthus community to increase, and those of Carex community to decrease. These findings imply that shorter inundation durations and earlier flood recession generated by the operation of the Three Gorges Dam have changed the macrophyte growth pattern.

show abstract

Hydrological and microtopographic effects on community ecological characteristics of Carex schmidtii tussock wetland

Cited by 17 publications

References 57 publications

Turing pattern selection for a plant–wrack model with cross-diffusion

Turing pattern selection for a plant–wrack model with cross-diffusion

Effect of Wetland Restoration and Degradation on Nutrient Trade-Off of Carex schmidtii

Community Trait Responses of Three Dominant Macrophytes to Variations in Flooding During 2011–2019 in a Yangtze River-Connected Floodplain Wetland (Dongting Lake, China)

Contact Info

Product

Resources

About