Growth substrates change the decomposition process of eelgrass in water bodies DOI Creative Commons

Wen Wang,

Enqi Liu, Chunzhen Fan

и другие.

Environmental Sciences Europe, Год журнала: 2024, Номер 36(1)

Опубликована: Дек. 21, 2024

Decomposition of submerged plants releases organic matter, nitrogen, and phosphorus into water bodies, generating an important impact on the aquatic ecosystem. This study explored influence growth substrate with different compositions decomposition process eelgrass (Vallisneria spinulosa Yan, V. Yan). The sediment + iron–carbon fillers system exhibited significantly lower concentrations total nitrogen (TN) (TP) in overlying than other systems, maximum values 5.68 7.05 mg/L, respectively. addition ceramic calcium nitrate promoted formation HCl-extracted (HCl–P) sediment, while increased content NaOH-extracted (NaOH–P). Three-dimensional fluorescence spectroscopy dissolved matter (DOM) showed that did not affect released during Yan. microbial community abundance each experimental group changed before after higher enrichment functional bacteria related to denitrification sulfate reduction. In contrast, a smaller change abundance, aerobic denitrifying bacteria. this paper, it was found had good adsorption effect purification as plants.

Язык: Английский

Study on the economic advantages of ecological ditch and the impact of removing nitrogen and phosphorus from paddy field drainage DOI
Yu Liang,

Yili Ge,

Kai Tian

и другие.

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 106918 - 106918

Опубликована: Янв. 5, 2025

Язык: Английский

Процитировано

0
Decomposition Processes and Characteristics of Wetland Plant Residues: Impacts of Biomass, Sediment, Living V. spinulosa Yan DOI Open Access
Dongsheng Wang, Enqi Liu,

Yunhua Huang

и другие.

Water, Год журнала: 2025, Номер 17(2), С. 135 - 135

Опубликована: Янв. 7, 2025

The decomposition of submerged plants is an important factor affecting water quality and microbial community structure aquatic ecosystems. This study aims to investigate the effects process V. spinulosa Yan residues on receiving under different conditions, including biomass weight, sediment component, living Yan. results showed that optimal for was 0.3 g/L. sand–soil mixture (3:7) lowest rate (90.4%) due poor moisture retention sand lack organic matter minerals, which slowed down process. N P could be released into rapidly through decomposing residues, concentrations TP, TN, PO43−-P were positively correlated with residues. decrease in TN TP observed bioceramic Fe-C ceramic partly their porous structures promoting attachment adsorption P, possibly also increase Firmicutes. After planting Yan, concentrations, as well dissolved oxygen levels, lower groups compared those control group without suggests effectively purifies by absorbing nutrients nitrification–denitrification processes. These differences underscore active role nutrient removal. provides a scientific basis management plants.

Язык: Английский

Процитировано

0
MgFe-LDHs/Vallisneria natans combined system for simultaneous elimination of endogenous N and P pollution in eutrophic water: Performance, synergetic mechanism, and metagenomics analysis DOI

Zihao Hu,

Zeyu Li,

Yin Xu

и другие.

Environmental Research, Год журнала: 2025, Номер 279, С. 121798 - 121798

Опубликована: Май 9, 2025

Язык: Английский

Процитировано

0
How Do Different Growth Forms of Winter Submerged Macrophytes Species Respond to Underwater Light Quality in a Mesocosm Study? DOI Creative Commons

Xiaowen Lin,

Xiaodong Wu,

Xuguang Ge

и другие.

Ecology and Evolution, Год журнала: 2024, Номер 14(10)

Опубликована: Окт. 1, 2024

ABSTRACT Underwater light is a key factor that affects the growth of submerged macrophytes. However, responses different forms macrophytes to quality remain unclear. The morphological, physiological, photosynthetic, and stoichiometric erect Potamogeton crispus ( P. ) low‐canopy Elodea nuttallii E. six qualities (white light, R/B = 1:8, 1: 4, 1:1, 4:1, 8:1) were studied by control experiment. (1) No significant differences observed in germination number, leaf length, width under p > 0.05). Both produced greater plant heights, more leaves branches red (4:1, 8:1), which was beneficial for extension leaves. Under white number , adventitious roots branch lowest. (2) Compared blue (1:4, 1:8) conducive synthesis photosynthetic pigments. excessive not accumulation result malondialdehyde showed physiological stress induced stronger. (3) N:P, C:N, C:P ratios higher nutrients two macrophy; however, contents TN TP light. Two grew better adapted eutrophic water dominated aquatic restoration, other need be supplemented after improved.

Язык: Английский

Процитировано

1
Growth substrates change the decomposition process of eelgrass in water bodies DOI Creative Commons

Wen Wang,

Enqi Liu, Chunzhen Fan

и другие.

Environmental Sciences Europe, Год журнала: 2024, Номер 36(1)

Опубликована: Дек. 21, 2024

Decomposition of submerged plants releases organic matter, nitrogen, and phosphorus into water bodies, generating an important impact on the aquatic ecosystem. This study explored influence growth substrate with different compositions decomposition process eelgrass (Vallisneria spinulosa Yan, V. Yan). The sediment + iron–carbon fillers system exhibited significantly lower concentrations total nitrogen (TN) (TP) in overlying than other systems, maximum values 5.68 7.05 mg/L, respectively. addition ceramic calcium nitrate promoted formation HCl-extracted (HCl–P) sediment, while increased content NaOH-extracted (NaOH–P). Three-dimensional fluorescence spectroscopy dissolved matter (DOM) showed that did not affect released during Yan. microbial community abundance each experimental group changed before after higher enrichment functional bacteria related to denitrification sulfate reduction. In contrast, a smaller change abundance, aerobic denitrifying bacteria. this paper, it was found had good adsorption effect purification as plants.

Язык: Английский

Процитировано

0