Precipitation modifies the effects of warming and nitrogen addition on soil microbial communities in northern Chinese grasslands

Zhang, Naili; Wan, Shiqiang; Guo, Jixun; Han, Guodong; Gutknecht, Jessica; Schmid, Bernhard; Liang, Yu; Liu, Weixing; Bi, Jie; Wang, Zhen; Ma, Keping

doi:10.1016/j.soilbio.2015.06.022

Cited by 100 publications

(45 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar to previous findings (Hu and Schmidhalter , Zhang et al. , Cavagnaro ), soil moisture content had significant effects on the soil microbiota. However, its effects vary depending on the microbiota.…”

Section: Discussionsupporting

confidence: 90%

“…As the productivity of many ecosystems is limited by the coupling of phosphorus and water (Zhang et al. , Huang et al. ), alterations in P availability and a reduction in soil moisture content will inevitably affect the composition of soil microbiota owing to changes in C, N, and other nutrient turnovers (Lloret et al.…”

Section: Introductionmentioning

confidence: 99%

“…Given that water constitutes 70–90% of the cell mass of microorganisms and often co‐limits other factors to influence the community composition of soil microbiota (Zhang et al. ), it is essential to examine the effects of P addition and water deficit on the abundance and community composition of soil microbiota, particularly the effects of the combined factor of water reduction and P addition on the abundance of soil protozoa, soil microbial communities, and enzyme activities in relation to the identity of aboveground tree species. This could be beneficial in the prediction of the manner in which soil microorganisms will respond to future environmental changes and help to develop effective and sustainable management strategies for forest ecosystems during adverse climatic conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of phosphorus application and water deficit on the soil microbiota of N₂‐fixing and non‐N‐fixing tree

et al. 2018

View full text Add to dashboard Cite

Soil water content and phosphorus availability are important factors that are expected to shape soil microbiota. Although the impacts of water deficit (drought) on soil microbiota have been reasonably studied, microbial responses to P addition combined with soil water deficit have rarely been reported, especially in relation to the identity of aboveground tree species. This study was conducted to evaluate the main and interactive effects of drought and P addition on the soil protozoa, microbial communities as determined by phospholipids fatty acids (PLFAs) and enzyme activities in a soil vegetated with N2‐fixing or non‐N‐fixing tree species and in a non‐vegetated soil. The results indicated that the effects of drought, P addition, and their interaction on soil microbiota and chemical properties varied depending on the type of aboveground tree species. Drought significantly decreased the abundance of ciliates, amoebae, total protozoa, and most of the microbial community compared to the optimum water treatment, but the effect was more pronounced under non‐N‐fixers compared to N2‐fixers. P addition significantly increased the nitrate nitrogen (NO3−‐N) and dissolve organic nitrogen (DON) in drought treated soil as compared to the well‐watered counterpart, irrespective of the planting systems. The interaction of P with drought significantly increased the mean abundance of ciliates, flagellates, amoebae, and the total protozoa in soil vegetated with non‐N‐fixers and actinomycetes PLFAs, G+ bacterial PLFAs, and total bacterial PLFAs in the soil vegetated with N2‐fixers. Our finding points to an essential role of P addition and N2‐fixing trees on soil microbiota under drought stress. This study suggests that the effects of P application depend on its interaction with drought and that drought had decreasing effects on the abundance of ciliates, flagellates, amoebae, total protozoa, and the soil microbial communities, but the extent of it effects varied with tree species.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of phosphorus application and water deficit on the soil microbiota of N₂‐fixing and non‐N‐fixing tree

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Higher upper layer DHA in NT than CT fields in Gleic Albeluvisol and Mollic Gleysol was probably related to significantly higher soil GWC, and in addition for Fragi-Stagnic Albeluvisol to the lower sand content compared to CT treatment (Tables 1-3). The strong positive relationship between DHA and GWC is also demonstrated by the correlation (P < 0.01, r = 0.71) ( Table 4) and has been obtained by other researchers as well (Zhang et al, 2015). The negative relationship between sand content and soil microorganisms was also observed by Najmadeen et al (2010).…”

Section: Resultssupporting

confidence: 77%

Response of soil physical properties and dehydrogenase activity to contrasting tillage systems

Nugis

Edesi

Tamm

et al. 2016

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

The aim of this study was to compare the influence of conventional tillage (CT) and no tillage (NT) on sandy loam and loamy sand soils in three sites of Estonia: 1) Viljandi county (Gleic Albeluvisol), 2) Valga county (FragiStagnic Albeluvisol) and 3) Pärnu county (Mollic Gleysol). The dry bulk density, gravimetric water content and dehydrogenase activity of the soils were determined in the spring of 2013 and 2014. In addition, a soil density index based on soil dry bulk density differences was introduced. Soil samples were collected from 0-10 and 10-20 cm layers in spring. The no tillage treatment had higher soil dry bulk density than the conventional tillage in Gleic Albeluvisol and Mollic Gleysol, where the no tillage fields had not been ploughed for 10 and 2 years, correspondingly. The index of soil density varied between 0.289-0.511, when compared the no tillage and conventional tillage treatments the lowest values were obtained in Gleic Albeluvisol and Mollic Gleysol. Gravimetric water content was significantly lower 2-5% (p < 0.05) in the conventional than in no tillage treatments. No tillage fields showed higher soil dehydrogenase activity in the upper 0-10 cm layer, conventional tillage treatments had no significant differences between the layers. Soil dehydrogenase activity had significant positive correlation (p < 0.01) with soil gravimetric water content and organic carbon, and negative correlation (p < 0.05) with soil dry bulk density and soil density index.

show abstract

“…The present study shows that across a wide range of forest ecosystems, soil GA and GN rates are positively correlated with the soil active N pool (MBN) and soil total N pool, which is consistent with the findings of a previous comprehensive meta‐analysis (Booth et al., ). In addition, we found that the soil C:N ratio is significantly negatively correlated with GA rates, suggesting that SOM also plays an important role in regulating ammonification to some extent, through its influence on microbial biomass and activity (Zhang, Wan, et al., ). Interestingly, GN rates were significantly the lowest at the DL and TY sites, that is, those sites where not only MBN, bacterial quantity and soil total N contents were low, but which also showed significant relationships between GN rates and these parameters ( p < .05).…”

Section: Discussionmentioning

confidence: 99%

Soil gross N ammonification and nitrification from tropical to temperate forests in eastern China

Wang

Zhu

et al. 2018

Functional Ecology

View full text Add to dashboard Cite

Abstract1. Nitrogen (N) ammonification and nitrification are two primary microbial processes controlling the availability of soil ammonium (NH 4 + ), a key nutrient for vegetative growth. The large-scale patterns of gross ammonification (GA) and gross nitrification (GN) rates represent soil microbial adaptations to different vegetative and environmental conditions. In this study, we investigated GA and GN rates in nine forest soils along a 3,700-km north-south transect in eastern China. We used 15N-labelling techniques, along with field experiments and laboratory incubations, to assess in situ and potential rates of the GA and GN. The mean in situ GA rate was 4.9 ± 0.5 mg N kg −1 day −1, whereas the mean potential rate of GA was 32.0 ± 8.6 mg N kg −1 day −1. The mean in situ GN rate was 1.7 ± 0.3 mg N kg −1 day −1(potential GN rate: 3.2 ± 0.6 mg N kg −1 day −1). GA was significantly higher than GN along the transect, and there were high variations in GA and GN among different forests. Significant relationships were identified between meteorological factors (temperature and precipitation) and the GA and GN rates during the sampling month (August 2013). However, the mean GA rate in primary forest was significantly lower in the Huzhong (HZ), Dongling (DL), Taiyue (TY) and Dinghu (DH) sites compared with other sites, whereas with the exception of the Liangshui (LS) sampling site, the mean GN rate in primary and secondary forests showed the same trends. Significant differences in GA rates were found between primary and secondary forests at the LS and Changbai (CB) sites, and differences were detected in GN rate at the HZ, LS and Jiulian (JL) sites. Structural equation modelling analysis suggested that soil N contents, microbialbiomass N pool sizes and bacterial abundance are the primary determinants of the in situ rates of GA and GN. The strong control of edaphic factors on GA and GN indicates a need to improve soil N models with more explicit representation of edaphic factors and their control on soil N transformations. K E Y W O R D Sammonification, forest, microbe, nitrification, nitrogen, productivity, transect | INTRODUCTIONNitrogen (N) is one of the most important nutrients in terrestrial ecosystems (Vitousek & Howarth, 1991) and is subjected to competitive partitioning between plants and soil micro-organisms (Harrison, Bol, & Bardgett, 2007;Kuzyakov & Xu, 2013). Gross ammonification (GA) and gross nitrification (GN) rates are key soil microbial processes controlling the availability of ammonium (NH 4 + ) in soils and thus the primary productivity of terrestrial ecosystems. Microbial ammonification is a key process in N cycling, as it defines the formation of NH 4 + from organic matter, with ammonium being the preferred N form for plant and microbial metabolism and protein synthesis (Dannenmann et al., 2009). Microbial ammonification is also defined as N mineralization (Kirkham & Bartholomew, 1954 (Larsen et al., 2011;Yin et al., 2013), whereas a few other studies have shown that warming can suppress ammonif...

show abstract

Precipitation modifies the effects of warming and nitrogen addition on soil microbial communities in northern Chinese grasslands

Cited by 100 publications

References 70 publications

Influence of phosphorus application and water deficit on the soil microbiota of N₂‐fixing and non‐N‐fixing tree

Influence of phosphorus application and water deficit on the soil microbiota of N₂‐fixing and non‐N‐fixing tree

Response of soil physical properties and dehydrogenase activity to contrasting tillage systems

Soil gross N ammonification and nitrification from tropical to temperate forests in eastern China

Contact Info

Product

Resources

About

Precipitation modifies the effects of warming and nitrogen addition on soil microbial communities in northern Chinese grasslands

Cited by 100 publications

References 70 publications

Influence of phosphorus application and water deficit on the soil microbiota of N2‐fixing and non‐N‐fixing tree

Influence of phosphorus application and water deficit on the soil microbiota of N2‐fixing and non‐N‐fixing tree

Response of soil physical properties and dehydrogenase activity to contrasting tillage systems

Soil gross N ammonification and nitrification from tropical to temperate forests in eastern China

Contact Info

Product

Resources

About

Influence of phosphorus application and water deficit on the soil microbiota of N₂‐fixing and non‐N‐fixing tree

Influence of phosphorus application and water deficit on the soil microbiota of N₂‐fixing and non‐N‐fixing tree