Soil Microbial Community Based on PLFA Profiles in an Age Sequence of Pomegranate Plantation in the Middle Yellow River Floodplain

Wang, Shilin; Yan, Xinyu; Wang, Dong; Siddique, Imran Ahammad; Chen, Ji; Xu, Qi; Zhao, Changwei; Yang, Liu; Miao, Yuan; Han, Shijie

doi:10.3390/d13090408

Cited by 13 publications

(8 citation statements)

References 63 publications

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“…Our findings were also in line with a previous study that demonstrated a depletion in soil WC resulted in a decrease in soil nutrients and plant attributes (e.g., total high, biomass, and community structure) (He & Fu, 2005). Also, other reports showed that soil WC was an essential factor influencing microbial community structure in the middle Yellow River floodplain after 10 years of pomegranate plantation (Wang et al, 2021). Interestingly, the present study found that soil nitrogen, phosphorus, potassium, and OM content in the IC1 and IC2 groups showed the same levels as the CK and ND, indicating that the damaged forests caused by illegal construction could be restored to specific content within 2 years.…”

Section: Discussionmentioning

confidence: 96%

“…Some previous studies were limited to exploring the role of individual soil factors or microbial communities in the forest system, such as the accumulation effect of soil organic carbon and its interaction with microorganisms in the process of forest restoration (Wang et al, 2021; Zhang, Deng, et al, 2021). However, our study investigated the putative patterns of soil properties and microbial communities along time gradients of forests damaged by natural and human reasons, granting comprehensive and convincing perspectives.…”

Section: Introductionmentioning

confidence: 99%

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Distinctive patterns of soil microbial community during forest ecosystem restoration in southwestern China

Zuo

Liu

et al. 2023

Land Degrad Dev

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Microorganisms are essential in soil biogeochemical processes and vegetation establishment. Nonetheless, investigating predictable patterns in the microbial structure during forest restoration damaged by natural or human factors in southwestern China is still limited. Hence, the study intended to explore the effects of forest restoration damaged by illegal construction, abandoned mines, and meteorological disasters on the microbial structure and its consequence on ecosystem functioning. The results uncovered that soil and plant attributes in the restoration forests damaged by illegal construction were similar to the natural community. Furthermore, the alpha diversity indexes were higher in the restoration forests damaged by human factors than in the natural community. Co‐occurrence network analysis identified hub bacterial (e.g., Roseiarcus and Comamonas) and fungal (e.g., Exophiala and Botryotrichum) taxa, proving densely connected interactions with other microorganisms. Restoration forests damaged by illegal construction harbored beneficial genera belonging to Proteobacteria (Nordella, Xanthobacteraceae, and Sphingomonas) and Basidiomycota (Panaeolus, Psilocybe, and Sebacina), whereas restoration forests damaged by abandoned mines presented specialized bacteria involved in dark sulfur oxidation and ureolysis. Correlation analysis showed that soil properties, especially water content and pH, were the dominant factors affecting the microbial communities. Tree and shrub alpha diversities were significantly related to Chloroflexi in the natural community, and herbaceous richness was remarkably related to Proteobacteria and Mortierellomycota in the restoration forest damaged by human factors. Collectively, this comprehensive analysis generates novel insights to explore the contrasting responses of microbial communities during the process of restoration and provides essential microbial indicators for habitat restoration in southwestern China.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Distinctive patterns of soil microbial community during forest ecosystem restoration in southwestern China

Zuo

Liu

et al. 2023

Land Degrad Dev

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“…The mean annual precipitation was 645.5 mm, and 65% of the precipitation fell between July and September. The soil at the study site was sandy, and the pH was approximately 8.10 [ 30 ]. The vegetation is dominated by T. chinensis , Phragmites australis (Cav.)…”

Section: Methodsmentioning

confidence: 99%

Effects of Variation in Tamarix chinensis Plantations on Soil Microbial Community Composition in the Middle Yellow River Floodplain

Yan

Zhang

et al. 2023

IJERPH

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Floodplains have important ecological and hydrological functions in terrestrial ecosystems, experience severe soil erosion, and are vulnerable to losing soil fertility. Tamarix chinensis Lour. plantation is the main vegetation restoration measure for maintaining soil quality in floodplains. Soil microorganisms are essential for driving biogeochemical cycling processes. However, the effects of sampling location and shrub patch size on soil microbial community composition remain unclear. In this study, we characterized changes in microbial structure, as well as the factors driving them, in inside- and outside-canopy soils of three patch sizes (small, medium, large) of T. chinensis plants in the middle Yellow River floodplain. Compared with the outside-canopy soils, inside-canopy had higher microbial phospholipid fatty acids (PLFAs), including fungi, bacteria, Gram-positive bacteria (GP), Gram-negative bacteria (GN), and arbuscular mycorrhizal fungi. The ratio of fungi to bacteria and GP to GN gradually decreased as shrub patch size increased. Differences between inside-canopy and outside-canopy soils in soil nutrients (organic matter, total nitrogen, and available phosphorus) and soil salt content increased by 59.73%, 40.75%, 34.41%, and 110.08% from small to large shrub patch size. Changes in microbial community composition were mainly driven by variation in soil organic matter, which accounted for 61.90% of the variation in inside-canopy soils. Resource islands could alter microbial community structure, and this effect was stronger when shrub patch size was large. The results indicated that T. chinensis plantations enhanced the soil nutrient contents (organic matter, total nitrogen, and available phosphorus) and elevated soil microbial biomass and changed microbial community composition; T. chinensis plantations might thus provide a suitable approach for restoring degraded floodplain ecosystems.

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“…For example, changes in Bacteroidetes abundance were negatively correlated with MBN, while Actinobacteria abundance decreased with the increasing soil nutrient availabilities. Some studies have shown that changes in microbial community composition might also be driven by nutrient acquisition or stress tolerance [65,66], which might be fundamentally associated with changes in microbial physiology. However, changes in microbial physiology after mineral and manure fertilization are beyond the scope of this study.…”

Section: Shifts In Bacterial Communitymentioning

confidence: 99%

New Insights from Soil Microorganisms for Sustainable Double Rice-Cropping System with 37-Year Manure Fertilization

et al. 2023

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Long-term intensive use of mineral fertilizers in double rice-cropping systems has led to soil acidification and soil degradation. Manure fertilization was suggested as an alternative strategy to mitigate soil degradation. However, the effects of long-term mineral and manure fertilization on rice grain yield, yield stability, soil organic carbon (SOC) content, soil total nitrogen (TN) content, and the underlying mechanisms are unclear. Based on a long-term experiment established in 1981 in southern China, we compared four treatments: no fertilizer application (Control); application of nitrogen–phosphorus–potassium (NPK); NPK plus green manure in early rice (M1); and M1 plus farmyard manure in late rice and rice straw return in winter (M2). Our results showed that 37 years of NPK, M1, and M2 significantly increased rice grain yield by 54%, 46%, and 72%, and yield stability by 22%, 17%, and 9%, respectively. M1 and M2 significantly increased SOC content by 39% and 23% compared to Control, respectively, whereas there was no difference between Control and NPK. Regarding soil TN content, it was significantly increased by 8%, 46%, and 20% by NPK, M1, and M2, respectively. In addition, M2 significantly increased bacterial OTU richness by 68%, Chao1 index by 79%, and altered the bacterial community composition. Changes in soil nutrient availability and bacterial Simpson index were positively correlated with the changes in grain yield, while shifts in bacterial community were closely related to yield stability. This study provides pioneer comprehensive assessments of the simultaneous responses of grain yield, yield stability, SOC and TN content, nutrient availability, and bacterial community composition to long-term mineral and manure fertilization in a double rice-cropping system. Altogether, this study spanning nearly four decades provides new perspectives for developing sustainable yet intensive rice cultivation to meet growing global demands.

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Soil Microbial Community Based on PLFA Profiles in an Age Sequence of Pomegranate Plantation in the Middle Yellow River Floodplain

Cited by 13 publications

References 63 publications

Distinctive patterns of soil microbial community during forest ecosystem restoration in southwestern China

Distinctive patterns of soil microbial community during forest ecosystem restoration in southwestern China

Effects of Variation in Tamarix chinensis Plantations on Soil Microbial Community Composition in the Middle Yellow River Floodplain

New Insights from Soil Microorganisms for Sustainable Double Rice-Cropping System with 37-Year Manure Fertilization

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