Microbial Functional Diversity as Affected by Different Engineered Eco-Restoration Methods at Xiangjiaba Hydropower Station

Cheng, Hui‐Ming; Xu, Wei; Luo, Ting; Xia, Lu; Xiang, Hanyu; Ma, Ping; Xia, Dong

doi:10.1061/(asce)ee.1943-7870.0001633

Cited by 3 publications

(3 citation statements)

References 57 publications

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“…However, there are relatively few studies on the MicroResp TM method at present, and its function has not been fully revealed [17]. Biolog-Eco microplate culture can sensitively reflect the dynamic changes in functional microbial communities [19,20], so it is widely used to evaluate the metabolic functional diversity of forest soil microbial communities under different management modes and vegetation types [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Functional Diversity of Soil Microorganisms and Influencing Factors in Three Typical Water-Conservation Forests in Danjiangkou Reservoir Area

Yao

Zhang

Wang

et al. 2022

Forests

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As a key part of the forest ecosystem, soil microorganisms play extremely important roles in maintaining the ecological environment and the security of water quality in reservoir areas. However, it is not clear whether there are differences in the functional diversity of soil microorganisms in different types of water−conservation forests in reservoir areas, and which factors affect the functional diversity of soil microorganisms. In our study, the Biolog−Eco microplate technique was used to analyze the carbon source metabolic characteristics of soil microbial communities in three typical water−conservation forests and a non−forest land: Pinus massoniana−Quercus variabilis mixed forest (MF), Pinus massoniana forest (PF), Quercus variabilis forest (QF) and non−forest land (CK). The results showed that the average well color development (AWCD), the Shannon diversity index (SDI) and the richness index (S) of the three forest lands was significantly greater than that of the non−forest land (p < 0.05). The mean values of AWCD, SDI and S of the three forests had the same order (QF > PF > MF), but there was no significant difference among different types of forests. The microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) of QF and PF were higher than those of MF and CK, but the microbial biomass C/N ratio (MBC/MBN) was lower. The variance partitioning analysis (VPA) showed that 86.4% of the variation was explained by plant (community) diversity, soil physical and chemical properties and soil microbial biomass, which independently explained 10.0%, 28.9%, and 14.9% of the variation, respectively. The redundancy analysis (RDA) showed that total phosphorus (TP), microbial biomass carbon (MBC), total nitrogen (TN), number of plant species (Num) and alkali-hydro nitrogen (Wn) were the key factors affecting the functional diversity of soil microorganisms. This study confirmed that forest ecosystem is better than non−forest land in maintaining soil microbial function diversity. Moreover, Quercus variabilis forest may be a better stand type in maintaining the diversity of soil microbial functions in the study area.

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Section: Introductionmentioning

confidence: 99%

Functional Diversity of Soil Microorganisms and Influencing Factors in Three Typical Water-Conservation Forests in Danjiangkou Reservoir Area

Yao

Zhang

Wang

et al. 2022

Forests

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“…Due to the rapid economic growth, the ecological environment has to some extent been destroyed and the earth’s resources and energy are becoming increasingly scarce. Therefore, people are paying more attention to the protection of ecological environment and the sustainable development of the earth ( Cheng et al., 2020 ). The construction of transportation and water conservancy projects, in particular, has destroyed the ecological environment and produced many exposed slopes around the project sites ( Wei et al., 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…It refers to the damaged slope stability-improving technology that combines living plant materials with non-living plant materials and civil engineering technology. Eco-restoration of vegetation concrete technology ( Peikert et al, 2017 ; Cheng et al., 2020 ) makes the base material adhere to the rock surface through the effect of wire mesh, anchor and cement laid on the rock surface, creating a stable growth environment for slope vegetation. It has the dual functions of engineering protection and ecological greening and has broad application prospects in slope protection and ecological construction ( Sharma et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Response of physiological characteristics of ecological restoration plants to substrate cement content under exogenous arbuscular mycorrhizal fungal inoculation

Qian

Dong²,

Ma³

et al. 2022

Front. Plant Sci.

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IntroductionIn order to solve the inhibition of alkaline environment on plants growth at the initial stage of Eco-restoration of vegetation concrete technology, introducing AMF into vegetation concrete substrate is an effective solution. MethodsIn this study, Glomus mosseae (GM), Glomus intraradices (GI) and a mixture of two AMF (MI) were used as exogenous inoculation agents. Festuca elata and Cassia glauca were selected as host plants to explore the relationship between the physiological characteristics of plants and the content of substrate cement under exogenous inoculation of AMF.ResultsThe experiment showed that, for festuca elata, the maximum mycorrhizal infection rates of inoculation with GM, MI were when the cement contents ranged 5–8% and that of GI inoculation was with the cement contents ranging 5–10%. Adversely, for Cassia glauca, substrate cement content had little effect on the root system with the exogenous inoculation of AMF. Compared with CK, the effects of AMF inoculation on the physiological characteristics of the two plants were different. When the cement content was the highest (10% and 8% respectively), AMF could significantly increase(p<0.05) the intercellular CO2 concentration (Ci) of Festuca elata. Moreover, for both plants, single inoculation was more effective than mixed inoculation. When the cement content was relatively low, the physiological characteristics of Cassia glauca were promoted more obviously by the inoculation of GI. At higher cement content level, inoculation of GM had a better effect on the physiological characteristics of the two plants. ConclusionThe results suggest that single inoculation of GM should be selected to promote the growth of Festuca elata and Cassia glauca in higher alkaline environment.

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Microbial functional diversity in rhizosphere and non-rhizosphere soil of different dominant species in a vegetation concrete slope

Xia

Zhao

Luo

et al. 2022

Biotechnology & Biotechnological Equipment

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Microbial Functional Diversity as Affected by Different Engineered Eco-Restoration Methods at Xiangjiaba Hydropower Station

Cited by 3 publications

References 57 publications

Functional Diversity of Soil Microorganisms and Influencing Factors in Three Typical Water-Conservation Forests in Danjiangkou Reservoir Area

Functional Diversity of Soil Microorganisms and Influencing Factors in Three Typical Water-Conservation Forests in Danjiangkou Reservoir Area

Response of physiological characteristics of ecological restoration plants to substrate cement content under exogenous arbuscular mycorrhizal fungal inoculation

Microbial functional diversity in rhizosphere and non-rhizosphere soil of different dominant species in a vegetation concrete slope

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