Identification of the alteration of riparian wetland on soil properties, enzyme activities and microbial communities following extreme flooding

Ou, Yang; Rousseau, Alain N.; Wang, Lixia; Yan, Baixing; Gumiere, Thiago; Zhu, Huiling

doi:10.1016/j.geoderma.2018.10.032

Cited by 44 publications

(18 citation statements)

References 69 publications

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“…For alkaline phosphatase we observed lower values than those in soil from the riparian wetlands in Songhua River (Fujin, China), with pH 6.86 [44]. We also obtained lower values of phosphatase activity compared to fluvo-aquic soil with pH 7.98, i.e., higher than in our Fluvisols [45].…”

Section: Soil Biological Propertiescontrasting

confidence: 56%

Analysis of Soil Properties, Bacterial Community Composition, and Metabolic Diversity in Fluvisols of a Floodplain Area

et al. 2019

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The quality of a soil environment affects the microbial community that inhabits it. We decided to examine whether soils formed from river sediments, located in an area of high biodiversity of organisms, are fertile and microbiologically diverse. Fluvisols are considered to be one of the most fertile soils. In this research, bacterial and metabolic diversity, as well as physico–chemical parameters, in three Fluvisols from the Vistula River Gorge of Lesser Poland was investigated. The analysis of physico–chemical and biological parameters demonstrated statistically significant differences between the three Fluvisols examined. While determining the metabolic potential of soil microbiomes with the use of the EcoPlate™ Biolog® technique, we also noted variation between the Fluvisols; however, they were arranged in a significantly different manner from other properties. The next generation sequencing method enabled us to determine the microorganisms common to three Fluvisols, and we identified bacteria specific to individual soils. These results corresponded with the data obtained through EcoPlate™, indicating that the structural diversity and metabolic potential of the microbiome does not always depend on soil quality parameters. Meanwhile, the increased structural diversity of the microbiome was found to improve the metabolic potential of soil microorganisms.

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Section: Soil Biological Propertiescontrasting

confidence: 56%

Analysis of Soil Properties, Bacterial Community Composition, and Metabolic Diversity in Fluvisols of a Floodplain Area

et al. 2019

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“…However, the intensity of environmental factors affecting both pathways was weaker in paddy than in upland soils, especially for fungal necromass (Figure 6; Figure S7). Likely, O 2 limitation caused by flooding in paddies decreases particularly the sensitivity of aerobic fungal activity to diverse environmental conditions (Ou et al, 2019). As a whole, intermediate temperature range, neutral soil pH, and lower clay/sand ratio are beneficial to reinforcing the contribution of plant residues to SOC sequestration in both croplands, whereas higher temperature, lower soil pH, and higher clay content are favorable for strengthening the contribution from microbial necromass.…”

Section: Discussionmentioning

confidence: 99%

Contrasting pathways of carbon sequestration in paddy and upland soils

Chen

Xia

et al. 2021

Global Change Biology

143

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Paddy soils make up the largest anthropogenic wetlands on earth, and are characterized by a prominent potential for organic carbon (C) sequestration. By quantifying the plant‐ and microbial‐derived C in soils across four climate zones, we identified that organic C accrual is achieved via contrasting pathways in paddy and upland soils. Paddies are 39%–127% more efficient in soil organic C (SOC) sequestration than their adjacent upland counterparts, with greater differences in warmer than cooler climates. Upland soils are more replenished by microbial‐derived C, whereas paddy soils are enriched with a greater proportion of plant‐derived C, because of the retarded microbial decomposition under anaerobic conditions induced by the flooding of paddies. Under both land‐use types, the maximal contribution of plant residues to SOC is at intermediate mean annual temperature (15–20°C), neutral soil (pH~7.3), and low clay/sand ratio. By contrast, high temperature (~24°C), low soil pH (~5), and large clay/sand ratio are favorable for strengthening the contribution of microbial necromass. The greater contribution of microbial necromass to SOC in waterlogged paddies in warmer climates is likely due to the fast anabolism from bacteria, whereas fungi are unlikely to be involved as they are aerobic. In the scenario of land‐use conversion from paddy to upland, a total of 504 Tg C may be lost as CO2 from paddy soils (0–15 cm) solely in eastern China, with 90% released from the less protected plant‐derived C. Hence, preserving paddy systems and other anthropogenic wetlands and increasing their C storage through sustainable management are critical for maintaining global soil C stock and mitigating climate change.

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“…Conductivity was one of the variables that were related to the decrease in species richness and changes in composition in the upper and the middle strata along the river. The relationship of electrical conductivity to species richness and composition is likely due to the accumulation of ions in the soil from areas that are frequently flooded (Ou et al, 2019). The accumulation of ions such as Fe 2+…”

Section: Discussionmentioning

confidence: 99%

Environment‐driven changes in diversity of riparian plant communities along a mountain river

Flores-Galicia

Trejo

Ramírez‐Marcial³

2021

Ecology and Evolution

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Identification of the alteration of riparian wetland on soil properties, enzyme activities and microbial communities following extreme flooding

Cited by 44 publications

References 69 publications

Analysis of Soil Properties, Bacterial Community Composition, and Metabolic Diversity in Fluvisols of a Floodplain Area

Analysis of Soil Properties, Bacterial Community Composition, and Metabolic Diversity in Fluvisols of a Floodplain Area

Contrasting pathways of carbon sequestration in paddy and upland soils

Environment‐driven changes in diversity of riparian plant communities along a mountain river

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