Drivers of changes in soil properties during post-fire succession on Dahurian larch forest

Weng, Yuetai; Li, Zhaoguo; Luo, Sisheng; Su, Zhangwen; Di, Xueying; Yang, Guang; Yu, Huan; Han, Donglin

doi:10.1007/s11368-021-03031-9

Cited by 8 publications

(2 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Herbaceous plants, prevalent on high and steep slopes, provide extensive cover. This reduces solar radiation and surface evapotranspiration while augmenting water-use efficiency and microbial activity, notably enhancing Rh 27 . The substrate thickness on steep slopes generally ranges from 8 to 12 cm, compared to 10 cm for VC 28 .…”

Section: Discussionmentioning

confidence: 99%

Soil carbon emissions and influential factors across various stages of vegetation succession in vegetated concrete

Xu,

Luo,

et al. 2024

Sci Rep

View full text Add to dashboard Cite

After ecological restoration of high and steep slopes in the project disturbed area, soil properties, soil microorganisms, litter types and root types change with the succession of vegetation cover communities. However, the effects of different vegetation successional stages on soil respiration dynamics remain unclear. To elucidate trends and drivers of soil respiration in the context of vegetation succession, we used spatio-temporal alternative applied research. Vegetated concrete-restored slopes (VC) with predominantly herbaceous (GS), shrub (SS), and arborvitae (AS) vegetation were selected, and naturally restored slopes (NS) were used as control. SRS1000 T soil carbon flux measurement system was used to monitor soil respiration rate. The results showed that soil respiration (RS) and fractions of all four treatments showed a single-peak curve, with peaks concentrated in July and August. During the succession of vegetation from herbaceous to arborvitae on VC slopes, RS showed a decreasing trend, and GS was significantly higher than AS by 45%; Compared to NS, RS was 29.81% and 21.56% higher in GS and SS successional stages, respectively, and 27.51% lower in AS stage. RS was significantly and positively correlated with nitrate nitrogen (NO3–-N) and microbial biomass nitrogen (MBN), both of which are important factors in regulating RS under vegetation succession. A bivariate model of soil temperature and water content explains the variability of Rs better. Overall, RS was higher than NS in the transition stage and lower than NS in the equilibrium stage of the vegetation community on VC slopes, and the RS decreases gradually with the vegetation succession of artificial ecological restoration slopes.

show abstract

Section: Discussionmentioning

confidence: 99%

Soil carbon emissions and influential factors across various stages of vegetation succession in vegetated concrete

Xu,

Luo,

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

“…This, together with a thick humus layer, makes taiga forests prone to forest wildfires. Research in this region has focused on the changes in soil physicochemical properties after fire disturbance [28], described the concentration of pyrolytic carbon produced by fires [29], investigated the transformation of trace metals [30], and reported the effects of fire disturbance on tree growth [31]. The effects of fire on the local soil fungal community composition and on soil physicochemical properties have not been thoroughly addressed.…”

Section: Introductionmentioning

confidence: 99%

Cortinarius and Tomentella Fungi Become Dominant Taxa in Taiga Soil after Fire Disturbance

Cheng,

Wu,

Pan

et al. 2023

JoF

View full text Add to dashboard Cite

Fungi have important ecological functions in the soil of forests, where they decompose organic matter, provide plants with nutrients, increase plant water uptake, and improve plant resistance to adversity, disease, and disturbance. A forest fire presents a serious disturbance of the local ecosystem and can be considered an important component affecting the function of ecosystem biomes; however, the response of soil fungi to fire disturbance is largely unknown. To investigate the effects of fire disturbance on the community composition and diversity of soil fungi in a taiga forest, we collected soil from plots that had undergone a light, moderate, and heavy fire 10 years previously, with the inclusion of a fire-free control. The present soil fungi were characterized using Illumina MiSeq technology, and the sequences were analyzed to identify differences in the community composition and diversity in response to the changed soil physicochemical properties. The results showed that the Chao1 index, which characterizes the alpha diversity of the fungi, did not change significantly. In contrast, the Shannon index increased significantly (p < 0.05) and the Simpson index decreased significantly (p < 0.05) following a light or heavy fire disturbance compared to the control. The relative abundance of Basidiomycota was significantly higher in the soil of the fire sites than that in the control (p < 0.01), and the relative abundance of Ascomycota was significantly lower (p < 0.01). The results of principal coordinates analyses (PCoAs) showed that fire disturbance highly significantly affected the beta diversity of soil fungi (p < 0.001), while the results of canonical correlation analysis (CCA) indicated that the available nitrogen (AN), moisture content (MC), pH, available potassium (AK), and total nitrogen (TN) contents of the soil significantly affected the compositional structure and diversity of the soil fungal communities. The results of functional prediction showed that the majority of the detected soil fungi were symbiotrophs, followed by saprotrophs and saprotroph–symbiotrophs, with ectomycorrhiza being the dominant functional taxon. Fire disturbance significantly reduced the relative abundance of ectomycorrhiza (p < 0.05). This study illustrates that fire disturbance alters the structural composition, diversity, dominance, and relative abundance of the guilds of soil fungal communities in taiga forest, and strongly affected the beta diversity of soil fungi, with AN, MC, pH, AK, and TN being the most important factors affecting their community structure. The results may provide a useful reference for the restoration and rehabilitation of taiga forests after fire disturbance.

show abstract

Influence of tree species on carbon, nitrogen, and phosphorus stocks and stoichiometry under different soil regeneration scenarios on reclaimed and afforested mine and post-fire forest sites

et al. 2022

View full text Add to dashboard Cite

Drivers of changes in soil properties during post-fire succession on Dahurian larch forest

Cited by 8 publications

References 82 publications

Soil carbon emissions and influential factors across various stages of vegetation succession in vegetated concrete

Soil carbon emissions and influential factors across various stages of vegetation succession in vegetated concrete

Cortinarius and Tomentella Fungi Become Dominant Taxa in Taiga Soil after Fire Disturbance

Influence of tree species on carbon, nitrogen, and phosphorus stocks and stoichiometry under different soil regeneration scenarios on reclaimed and afforested mine and post-fire forest sites

Contact Info

Product

Resources

About