Erosion reduces soil microbial diversity, network complexity and multifunctionality

Qiu, Liping; Zhang, Qian; Zhu, Hansong; Reich, Peter B.; Banerjee, Samiran; Heijden, Marcel G. A. van der; Sadowsky, Michael J.; Ishii, Satoshi; Jia, Xiaoxu; Shao, Mingan; Liu, Baoyuan; Jiang, Huan; Li, Haiqiang; Wei, Xiaorong

doi:10.1038/s41396-021-00913-1

Cited by 372 publications

(183 citation statements)

References 116 publications

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“…Finally, adverse climate change, including enhanced rainfall, significantly reduces the species richness of soil bacteria and fungi [ 170 , 171 ]. Furthermore, erosion and variable warming reduce the network complexity of soil microbiomes [ 171 , 172 ]. This implies the reduction of decomposition activity and nutrient cycling, as well as resource availability.…”

Section: Microbial Biostimulants As a Solution To Limit Land Degradation And Unsustainable Agriculturementioning

confidence: 99%

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Microbial Biostimulants as Response to Modern Agriculture Needs: Composition, Role and Application of These Innovative Products

Castiglione

Mannino

Contartese³

et al. 2021

Plants

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An increasing need for a more sustainable agriculturally-productive system is required in order to preserve soil fertility and reduce soil biodiversity loss. Microbial biostimulants are innovative technologies able to ensure agricultural yield with high nutritional values, overcoming the negative effects derived from environmental changes. The aim of this review was to provide an overview on the research related to plant growth promoting microorganisms (PGPMs) used alone, in consortium, or in combination with organic matrices such as plant biostimulants (PBs). Moreover, the effectiveness and the role of microbial biostimulants as a biological tool to improve fruit quality and limit soil degradation is discussed. Finally, the increased use of these products requires the achievement of an accurate selection of beneficial microorganisms and consortia, and the ability to prepare for future agriculture challenges. Hence, the implementation of the microorganism positive list provided by EU (2019/1009), is desirable.

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Section: Microbial Biostimulants As a Solution To Limit Land Degradation And Unsustainable Agriculturementioning

confidence: 99%

“…This implies the reduction of decomposition activity and nutrient cycling, as well as resource availability. These factors limit the microbial resilience to environmental stresses by causing long-term adverse effects on soil functions [ 172 ].…”

Section: Microbial Biostimulants As a Solution To Limit Land Degradation And Unsustainable Agriculturementioning

confidence: 99%

Microbial Biostimulants as Response to Modern Agriculture Needs: Composition, Role and Application of These Innovative Products

Castiglione

Mannino

Contartese³

et al. 2021

Plants

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“…A small fraction of < 2-mm samples were ground to pass through a 0.25-mm sieve for the measurement of SOC and TN. Soil metrics were measured using standard methods as described by Qiu et al [75]. The SOC and TN were measured using the Walkley-Black and Kjeldahl method.…”

Section: Laboratory Analysis For Soil Properties and Extracellular Enzyme Activitiesmentioning

confidence: 99%

Halophytes Increase Rhizosphere Microbial Diversity And Network Complexity In Inland Saline Ecosystem

Qiu

Kong

Zhu

et al. 2021

Preprint

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Background: Salinization is an important global environmental problem influencing sustainable development of terrestrial ecosystems. Salt-tolerant halophytes are often used as a promising approach to remedy the saline soils. Yet, how halophytes affect rhizosphere microbial diversity, and microbes’ association and functions in saline ecosystems remains unclear, restricting our ability to assess plant fitness to salt stress and to remediate saline ecosystems. Herein, we examined bacterial and fungal diversities, compositions, and co-occurrence networks in the rhizospheres of six halophytes and bulk soils in a semiarid inland saline ecosystem. We also established the relationship of microbial structure and network complexity to microbial functions.Results: The microbial communities in rhizospheres were more diverse and complex than those the bulk soils. The connections of taxa in the rhizosphere microbial communities increased with fungi-fungi and bacteria-fungi connections and fungal diversity, but decreased with bacteria-bacteria connections and bacterial diversity. The proportion of the fungi-related central connections were larger in the rhizospheres (13-73%) than the bulk soils (3%). Additionally, fungi accounted for 27-63% of the keystone taxa identified in the microbial co-occurrence networks present in the rhizospheres, whereas the keystone taxa identified in the bulk soils were all bacteria/archaea. Moreover, microbial activity and residues were significantly higher in the halophyte rhizospheres than the bulk soils, and were significantly correlated with microbial composition and co-occurrence network complexity.Conclusions: These results indicated that halophytes shaped rhizosphere microbiomes and increased microbial diversity and network complexity in inland saline ecosystem, while fungi enhanced rhizosphere microbiota associations. The increased microbial network complexity contributed to the higher microbial functions in rhizosphere soils.

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“…The soil functions of cultivated land mainly involve five aspects that contribute to increased agricultural productivity and provide other regulatory and supportive ecosystem services: primary productivity, provision and cycling of nutrients, provision of functional and intrinsic biodiversity, water purification and regulation, and carbon sequestration and regulation [8]. In other countries, the theoretical framework, index selection, and standardization of soil function evaluation, and the mapping method of evaluation results have been relatively systematic [36,37], providing a reference for the development of soil multifunctionality evaluation and change analysis in China [38][39][40][41][42][43][44]. Existing studies on large scale soil function are still slightly inadequate in China.…”

Section: Introductionmentioning

confidence: 99%

Cultivated Land Use Zoning Based on Soil Function Evaluation from the Perspective of Black Soil Protection

Zhao

et al. 2021

Land

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Given that cultivated land serves as a strategic resource to ensure national food security, blind emphasis on improvement of food production capacity can lead to soil overutilization and impair other soil functions. Therefore, we took Heilongjiang province as an example to conduct a multi-functional evaluation of soil at the provincial scale. A combination of soil, climate, topography, land use, and remote sensing data were used to evaluate the functions of primary productivity, provision and cycling of nutrients, provision of functional and intrinsic biodiversity, water purification and regulation, and carbon sequestration and regulation of cultivated land in 2018. We designed a soil function discriminant matrix, constructed the supply-demand ratio, and evaluated the current status of supply and demand of soil functions. Soil functions demonstrated a distribution pattern of high grade in the northeast and low grade in the southwest, mostly in second-level areas. The actual supply of primary productivity functions in 71.32% of the region cannot meet the current needs of the population. The dominant function of soil in 34.89% of the area is water purification and regulation, and most of the cultivated land belongs to the functional balance region. The results presented herein provide a theoretical basis for optimization of land patterns and improvement of cultivated land use management on a large scale, and is of great significance to the sustainable use of black soil resources and improvement of comprehensive benefits.

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Erosion reduces soil microbial diversity, network complexity and multifunctionality

Cited by 372 publications

References 116 publications

Microbial Biostimulants as Response to Modern Agriculture Needs: Composition, Role and Application of These Innovative Products

Microbial Biostimulants as Response to Modern Agriculture Needs: Composition, Role and Application of These Innovative Products

Halophytes Increase Rhizosphere Microbial Diversity And Network Complexity In Inland Saline Ecosystem

Cultivated Land Use Zoning Based on Soil Function Evaluation from the Perspective of Black Soil Protection

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