Soil bacterial approach to assessing afforestation in the desertfied Northern China

Cao, Huiming; Gao, Guanglei; Zhang, Ying; Guo, Mishan; Ren, Yue; Ding, Guodong

doi:10.1016/j.jclepro.2021.125935

Cited by 11 publications

(2 citation statements)

References 68 publications

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“…The dominance of Pseudarthrobacter in both the rhizospheric and bulk soils can be attributed to it being particularly well adapted to barren soils ( Delgado-Baquerizo et al, 2017 ; Cao et al, 2021 ). Indeed, their spores can remain dormant through adverse conditions, facilitating their resilience to environmental stress ( Andrew et al, 2012 ; Berendsen et al, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Succession of soil microbial community in a developing mid-channel bar: The role of environmental disturbance and plant community

Hong

et al. 2022

Front. Microbiol.

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Succession of microbial and plant communities is crucial for the development and the stability of soil ecological functions. The relative role of plant communities and environmental disturbance in shaping the microbial community in a newly established habitat remains unclear. In this study, a mid-channel bar (MCB) exposed to an environmental disturbance gradient in the Yangtze River was studied to explore the effects of such disturbance and plant community traits on the succession of the soil microbial community. Bulk and rhizospheric soils were collected from the MCB and classified according to their level of exposure to environmental disturbance: head, central and tail. These subsequently underwent high-throughput sequencing and interdomain ecological network (IDEN) analysis to identify and characterize the predominant microbial groups present in the soils at each disturbance level. Furthermore, at each site, the presence and distribution of the plant community was also noted. The present study demonstrated that both bulk soil nutrients and plant community exhibited significant spatial distribution dependent on the level of disturbance and this influenced the composition of the microbial community. In less eroded parts of the MCB, i.e., the central, nutrients accumulated, promoting growths of plants. This in turn encouraged a more diverse microbial community, dominated by the bacterial genus Pseudarthrobacter. Plant showed a stronger association with bulk soil microbial communities compared to rhizosphere soil microbial communities. Particularly, Triarrhena sacchariflora and Hemarthria altissima, present in sites of low disturbance, exhibiting a more extensive plant-microbe association. They thus played a key role in shaping the soil microbial community. In general, however, plant species did not directly determine the composition of the bacterial community, but instead altered the nutritive state of the soil to promote microbial growth. Such findings are of significant value for conservation practices of newly formed ecosystems, which requires an integrated understanding of the role of environmental disturbance and plants on soil microbial community assemblage.

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Section: Discussionmentioning

confidence: 99%

Succession of soil microbial community in a developing mid-channel bar: The role of environmental disturbance and plant community

Hong

et al. 2022

Front. Microbiol.

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“…Desertification is a key global environmental issue (Huang et al, 2017), and China has suffered from desertification for a long time. To combat desertification, extensive afforestation projects have been executed in desertified northern China, and outstanding achievements have been made in combating desertification through the construction of the “Great Green Wall” (Cao et al, 2021; Gao et al, 2014). For large‐scale afforestation in regions affected by desertification, the ecological and hydrological processes of plantation are the critical issues (Prăvălie et al, 2019; Zhang & Huisingh, 2018), and recent studies have revealed that soil microorganisms are also key factors affecting vegetation and soil health (Geisseler et al, 2017; Singh et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Biogeography and ecological functions of root‐associated and soil fungi of Pinus sylvestris var. mongolica across different afforestation areas in desertified Northern China

et al. 2022

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China has unquestionably led efforts to 'green' drylands, but an evaluation of the large-scale effects of afforestation in desert ecosystems mediated by soil microorganisms is lacking. The ecological functions of fungi are closely related to soil and plant health. Therefore, there is a lively interest in revealing the biogeographic patterns of root-associated (RAF) and soil fungal (SF) communities of Pinus sylvestris var. mongolica, a widespread evergreen tree endemic to Northern China. We revealed the community assembly of RAF and SF of natural forest and plantations in the Hulunbuir Desert, Horqin Desert, and Mu Us Desert and investigated fungal responses to geographical location, climate factors, soil properties, and stand age at regional and local scales. The results indicated that (1) SF was more diverse than RAF. For RAF, the diversity indices in the natural forest were significantly lower than those in plantations, and ectomycorrhizal fungi (50.37%) were the predominant functional guild in the natural forest. (2) At the local scale, SF, not RAF, is more sensitive to the impacts of soil properties. More than half of the differential genera were ectomycorrhizal and endophytic fungi, such as Acephala, Cadophora, Pustularia, and Trichoderma. (3) On the regional scale, precipitation and sunshine duration were the main influences on geographical differences in the fungal community composition. Geographical location directly and significantly influences RAF diversity and structure. The effect of climate factors on SF diversity was low, but it had a shaping effect on SF structure. Our results demonstrated that the fungal communities were geographically structured, a stable relationship was established between hosts and RAF, and soil nutrients had a significant impact on SF community composition. The ecological functions of fungi are important in evaluating afforestation efforts and maintaining stability in desert ecosystems.

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Afforestation increases microbial diversity in low-carbon soils

Pang,

Wang,

Ren

et al. 2023

J. For. Res.

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Soil bacterial approach to assessing afforestation in the desertfied Northern China

Cited by 11 publications

References 68 publications

Succession of soil microbial community in a developing mid-channel bar: The role of environmental disturbance and plant community

Succession of soil microbial community in a developing mid-channel bar: The role of environmental disturbance and plant community

Biogeography and ecological functions of root‐associated and soil fungi of Pinus sylvestris var. mongolica across different afforestation areas in desertified Northern China

Afforestation increases microbial diversity in low-carbon soils

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