The effect of nitrogen deposition on forest soil organic matter and litter decompostion and the microbial mechanism

Jingyuan, 王晶苑 Wang; Xinyu, 张心昱 Zhang; Xuefa, 温学发 Wen; Shaoqiang, 王绍强 Wang; Huimin, 王辉民 Wang

doi:10.5846/stxb201204300621

Cited by 8 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in the average value of TN in this study showed that exogenous N input alleviated nitrogen deficiency in the moso bamboo ecosystem, which is similar to the results of most studies [5,31,42,51]. Wang's results [52] suggest that a soil C:N greater than 25.0 is nitrogen-limiting for microorganisms. Our experiment shows that the soil C:N was between 12.6 and 26.8, and some of the control plots (CK) were in the critical state of N limitation.…”

Section: Discussionsupporting

confidence: 88%

Ecostoichiometry Reveals the Separation of Microbial Adaptation Strategies in a Bamboo Forest in an Urban Wetland under Simulated Nitrogen Deposition

Huang²,

Liu

et al. 2020

Forests

View full text Add to dashboard Cite

The effect of nitrogen (N) deposition on N limitation, phosphorus (P) limitation and the related soil and microbial stoichiometries remains unclear. A simulated nitrogen deposition (SND) experiment (control, ambient, medium and high) and molecular techniques (high-throughput sequencing of 16S and ITS) were conducted to examine the variations in abiotic and biotic properties and to describe the responses of microbial (bacteria and fungi) adaptation strategies in a moso bamboo (Phyllostachys edulis J. Houzeau) forest following SND. Soil water content (SWC) was positively correlated with the microbial community composition. Observed increases in total N and nitrate N contents and decreased ammonia N suggested that SND influenced nitrification. Chao1 and F:B showed that bacteria were more sensitive to SND than fungi. PCoA and linear discriminant analysis (LDA), coupled with effect size measurements (LefSe), confirmed that microbial community composition, including the subgroups (below class level), responded to SND by employing different adaptation strategies. Soil C:N indicated that the soil of the moso bamboo forest was under N limitation prior to SND. The increase in total P (TP), available P (AP) and microbial biomass P (MBP) suggested the acceleration of soil P cycling. Microbial biomass C (MBC) and microbial biomass N (MBN) were not affected by SND, which led to a significant shift in MBC:MBP and MBN:MBP, suggesting that P utilization per unit of C or N was promoted. There was a negative gradient correlation between the fungal community composition and MBC:MBP, while bacteria were positively correlated with MBN:MBP. The results illustrated that the response of fungi to MBC was more sensitive than that of bacteria in the process of accelerated P cycling, while bacteria were sensitive to MBN. Prior to P limitation, SND eliminated the soil N limitation and stimulated soil microorganisms to absorb more P, resulting in an increase in MBP, but did not alter MBC or MBN. This study contributes to our understanding of the adaptation strategies of fungi and bacteria and their responses to soil and microbial stoichiometries.

show abstract

Section: Discussionsupporting

confidence: 88%

Ecostoichiometry Reveals the Separation of Microbial Adaptation Strategies in a Bamboo Forest in an Urban Wetland under Simulated Nitrogen Deposition

Huang²,

Liu

et al. 2020

Forests

View full text Add to dashboard Cite

show abstract

Effects of nitrogen deposition and management practices on leaf litterfall and N and P return in a Moso bamboo forest

Zhang

et al. 2017

Biogeochemistry

View full text Add to dashboard Cite

Soil N/P and C/P ratio regulate the responses of soil microbial community composition and enzyme activities in a long-term nitrogen loaded Chinese fir forest

Shen

Fan

et al. 2018

Plant Soil

View full text Add to dashboard Cite

The effect of nitrogen deposition on forest soil organic matter and litter decompostion and the microbial mechanism

Cited by 8 publications

References 0 publications

Ecostoichiometry Reveals the Separation of Microbial Adaptation Strategies in a Bamboo Forest in an Urban Wetland under Simulated Nitrogen Deposition

Ecostoichiometry Reveals the Separation of Microbial Adaptation Strategies in a Bamboo Forest in an Urban Wetland under Simulated Nitrogen Deposition

Effects of nitrogen deposition and management practices on leaf litterfall and N and P return in a Moso bamboo forest

Soil N/P and C/P ratio regulate the responses of soil microbial community composition and enzyme activities in a long-term nitrogen loaded Chinese fir forest

Contact Info

Product

Resources

About