Contrasting patterns and drivers of soil fungal communities in subtropical deciduous and evergreen broadleaved forests

Chen, Liang; Xiang, Wenhua; Xiang, Wenhua; Ouyang, Shuai; Lei, Pifeng; Hu, Yajun; Ge, Tida; Ye, Jun; Kuzyakov, Yakov

doi:10.1007/s00253-019-09867-z

Cited by 30 publications

(26 citation statements)

References 73 publications

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“…The resulting loss of water from the canopy surface increased the possibility of the canopy structure affecting stemflow generation, which might be an important reason for the distinct differences in F V and L S between two species under low-intensity, long-duration rainfall type (rainfall type C; Figures 4 and 9). Similarly, previous studies reported that tree canopy was the main factor controlling stemflow volume in low-intensity storms for Ashe junipers trees in Southern United States (Owens et al, 2006) and the evergreen broad-leaved forest in Central Japan (Chen et al, 2019).…”

Section: Effects Of Tree Species On Stemflow Dynamics Depend On Raisupporting

confidence: 55%

Exploring the stemflow dynamics and driving factors at both inter‐ and intra‐event scales in a typical subtropical deciduous forest

Zhang

Liao

et al. 2021

Hydrological Processes

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Numerous efforts have been made to understand stemflow dynamics under different types of vegetation at the inter-event scale, but few studies have explored the stemflow characteristics and corresponding influencing factors at the intra-event scale. An in-depth investigation of the inter-and intra-event dynamics of stemflow is important for understanding the ecohydrological processes in forest ecosystems. In this study, stemflow volume (F V), stemflow funnelling ratio (F R), and stemflow ratio (F %) from Quercus acutissima and Broussonetia papyrifera trees were measured at both inter-and intra-event scales in a subtropical deciduous forest, and the driving factors, including tree species and meteorological factors were further explored. Specifically, the F V , F R and F % of Q. acutissima (52.3 L, 47.2, 9.6%) were lower than those of B. papyrifera (85.1 L, 91.2, 12.4%). The effect of tree species on F V and F % was more obvious under low intensity rainfall types. At the inter-event scale, F V had a strong positive linear correlation with rainfall amount (G P) and event duration (D E) for both tree species, whereas F R and F % had a positive logarithmic correlation with G P and D E only under high-intensity, short-duration rainfall type. F R and F % were mainly affected by wind speed and the maximum 30-min rainfall intensity under low-intensity, longduration rainfall type. At the intra-event scale, for both tree species, the mean lag time between the start of rainfall and stemflow was the shortest under high-intensity, short-duration rainfall type, while the mean duration and amount of stemflow after rain cessation were the greatest under high-amount, long-duration rainfall type. The relationship between stemflow intensity and rainfall intensity at the 5-min interval scale also depended greatly on rainfall type. These findings can help clarify stemflow dynamics and driving factors at both inter-and intra-event scales, and also provide abundant data and parameters for ecohydrological simulations in subtropical forests.

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Section: Effects Of Tree Species On Stemflow Dynamics Depend On Raisupporting

confidence: 55%

Exploring the stemflow dynamics and driving factors at both inter‐ and intra‐event scales in a typical subtropical deciduous forest

Zhang

Liao

et al. 2021

Hydrological Processes

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“…The variance in community composition (Figure 5c) demonstrated shifts in fungal community functions as stands aged. The vertical gradients in fungal diversity and composition are common due to the main input of organic materials starting from the topsoil (Chen et al, 2019a; Ovsepyan, Kurganova, de Gerenyu, & Kuzyakov, 2019; Uroz et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…The finding that soil fertility relates positively to fungal saprotrophic abundance is also supported by Kyaschenko, Clemmensen, Karltun, and Lindahl (2017) and Castaño et al (2018). These inter‐guilds relationships are especially relevant due to their potential effects on crucial ecosystem processes, such as C sequestration and N and P cycling (Averill & Hawkes, 2016; Chen et al, 2019a; Clemmensen et al, 2015; Kyaschenko, Clemmensen, Karltun, & Lindahl, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…The former is important for decomposition and the latter for nutrient cycling. These two funguilds have overlapping fundamental niches, and they compete for space and nutrients (Bödeker, Lindahl, Olson, & Clemmensen, 2016; Chen et al, 2019a). The interactions between mycorrhizal and saprotrophic fungi have been studied well in boreal forests (Bödeker et al, 2016; Kyaschenko, Clemmensen, Hagenbo, Karltun, & Lindahl, 2017), but less is known about subtropical or tropical forests, which differ in soil funguilds and have more widespread biodiversity.…”

Section: Introductionmentioning

confidence: 99%

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Tight coupling of fungal community composition with soil quality in a Chinese fir plantation chronosequence

et al. 2020

Self Cite

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Predicting changes in carbon and nutrient cycles in plantations requires a mechanistic understanding of the effects of stand age on soil quality and microbial communities. Here, we evaluated soil quality by using an integrated soil quality index (SQI) and traced the parallel shifts in fungal community composition using high‐throughput sequencing in a chronosequence of Chinese fir (Cunninghamia lanceolata) plantations (stand age of 3, 16, 25, 32, >80 years). Soil properties showed pronounced changes with stand age in the topsoil. Soil organic carbon (SOC), total nitrogen (TN) and available phosphorus (AP) were 2.1, 1.9 and 2.2 times higher, respectively, in the oldest stands than in the youngest stands. SQI of the top 5 cm increased logarithmically with stand age. Mycorrhizal fungi initially increased in younger stands, but then they were gradually replaced by saprotrophs in older stands due to larger litterfall. Strong positive correlations between saprotrophic fungi and key soil quality indicators, such as TN, AP and NH4+, confirmed that abundance of decomposers is tightly linked with higher soil quality. Mycorrhizal orders Thelephorales, Sebacinales and Russulales increased in abundance and raised the activity of acid phosphatase to mobilise limiting phosphorus from organic matter. Consequently, mycorrhizal fungi are especially relevant in younger stands to acquire nutrients to sustain tree productivity. In developed stands, however, saprotrophic fungi are crucial in recycling nutrients from the litter. Collectively, the increase of topsoil quality during the life cycle of Chinese fir plantations is closely linked with the observed transition of fungal communities from mycorrhizae to saprotrophs.

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“…Notably, the number of positive links in the network for each season accounted for more than 80% of the total links, which indicates that mutualism or commensalism may play a key role in shaping the fungal community structure at high latitudes. However, negative links were also present in the networks, which indicates that competitive interactions between soil fungi may also occur (Chen et al, 2019). Based on the RMT, at the same St , number of network nodes and links, the average degree (avgK) and avgCC were higher in September than in May and July.…”

Section: Discussionmentioning

confidence: 99%

Seasonal variations in soil fungal communities and co-occurrence networks along an altitudinal gradient in the cold temperate zone of China: A case study on Oakley Mountain

Yang

Zhang

et al. 2020

Preprint

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The biogeography of soil fungi has attracted much attention in recent years; however, studies on this topic have mainly focused on mid- and low-altitude regions. The seasonal patterns of soil fungal community structure and diversity along altitudinal gradients under the unique climatic conditions at high latitudes remain unclear, which limits our insight into soil microbial interactions and the mechanisms of community assembly. In this study, Illumina MiSeq sequencing was used to investigate the spatiotemporal changes in soil fungal communities along an altitudinal gradient (from 750 m to 1420 m) on Oakley Mountain in the northern Greater Khingan Mountains. Altitude had significant impacts on the relative abundances of the dominant phyla and classes of soil fungi, and the interaction of altitude and season significantly affected the relative abundances of Ascomycota and Basidiomycota. The number of soil fungal taxa and Faith’s phylogenetic diversity (PD) index tended to monotonically decline with increasing elevation. Soil moisture (SM), soil temperature (ST) and pH were the main factors affecting fungal community structure in May, July and September, respectively. The soil dissolved organic carbon (DOC) content significantly shaped the soil fungal community composition along the altitudinal gradient throughout the growing season. Compared to that in May and July, the soil fungal network in September had more nodes and links, a higher average degree and a higher average clustering coefficient. The nine module nodes in the co-occurrence network were all Ascomycota taxa, and the identities of the keystone taxa of soil fungi in the network showed obvious seasonality. Our results demonstrated that altitude has stronger effects than season on soil fungal community structure and diversity at high latitudes. In addition, the co-occurrence network of soil fungi exhibited obvious seasonal succession, which indicated that the keystone taxa of soil fungi exhibit niche differentiation among seasons.

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Contrasting patterns and drivers of soil fungal communities in subtropical deciduous and evergreen broadleaved forests

Cited by 30 publications

References 73 publications

Exploring the stemflow dynamics and driving factors at both inter‐ and intra‐event scales in a typical subtropical deciduous forest

Exploring the stemflow dynamics and driving factors at both inter‐ and intra‐event scales in a typical subtropical deciduous forest

Tight coupling of fungal community composition with soil quality in a Chinese fir plantation chronosequence

Seasonal variations in soil fungal communities and co-occurrence networks along an altitudinal gradient in the cold temperate zone of China: A case study on Oakley Mountain

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