Differential effects of conifer and broadleaf litter inputs on soil organic carbon chemical composition through altered soil microbial community composition

Wang, Hui; Liu, Shirong; Wang, Jingxin; Shi, Zhou; Xu, Jia; Hong, Pizheng; Ming, Angang; Yu, Hongxian; Lin, Chunye; Lu, Ling; Cai, Daoxiong

doi:10.1038/srep27097

Cited by 38 publications

(19 citation statements)

References 60 publications

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“…season), are among the main environmental factors in the efficiency of C use and ecosystem functioning, directly or indirectly, or both, affecting soil microorganisms (Manzoni et al ., ). Different microbial groups decompose and assimilate C compounds differently depending on their quality (Wang et al ., ), and the functional effects observed in our study might reflect cascading effects on microbial communities (Pérez‐Izquierdo et al ., ), which deserves further analysis. Potential enzyme activities were measured in optimally controlled conditions; therefore, results could vary under field conditions where complex multi‐factor interactions usually occur (Baldrian, ).…”

Section: Discussionmentioning

confidence: 93%

“…In general, the soil characteristics and biogeochemical functioning beneath the Atlantic trees were different from those under the Mediterranean and African genotypes, probably because of different litter properties, which deserve further analysis. The quantity, chemical composition and properties of litter, mainly leaf and root inputs, are among the main factors affecting the formation of SOM in terrestrial ecosystems (Wang et al, 2016). Differences in litter qualities have been demonstrated at interspecific (Wang et al, 2016) and intraspecific levels (Madritch & Hunter, 2002) and recognized as a consequence of the genetic expression (Allan et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…The quantity, chemical composition and properties of litter, mainly leaf and root inputs, are among the main factors affecting the formation of SOM in terrestrial ecosystems (Wang et al, 2016). Differences in litter qualities have been demonstrated at interspecific (Wang et al, 2016) and intraspecific levels (Madritch & Hunter, 2002) and recognized as a consequence of the genetic expression (Allan et al, 2012). Litter quality controls litter decay and soil functioning through its effect on the belowground microbial communities (Chavez-Vergara et al, 2014), and these last act, in turn, as important controlling factors of SOM formation and nutrient mobilization (Pérez-Izquierdo et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

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Tree genotype and seasonal effects on soil properties and biogeochemical functioning in Mediterranean pine forests

Pérez‐Izquierdo

Saint‐André²,

Santenoise³

et al. 2018

European J Soil Science

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Summary In forests, intraspecific genetic variation in trees can affect the entire ecosystem, which in turn depends on the different processes occurring through space and time in soil. We hypothesized that, in addition to the effect of the local site, tree genotype and season would have an effect on the properties and functions of the edaphic environment. We studied soils beneath different genotypes of Pinus pinaster Ait. (Atlantic, Mediterranean and African) in 45‐year‐old common gardens in spring and autumn. The pH, organic matter, nutrients and infrared spectroscopy, together with enzyme activities, were determined and used to evaluate the soil properties and biogeochemical functioning. In addition to strong site effects, tree genotype and seasonal effects were detected on soil properties and functions. Both were major controlling factors of microbially mediated functioning, especially processes related to the carbon (C) and nitrogen (N) cycles. In general, the soil environment beneath the Atlantic trees was different from that under the Mediterranean and African genotypes, with differences in raw infrared spectra and increased activities of enzymes involved in hemicellulose degradation and N mobilization. Regarding the season, the largest soil humidity (RH), electric conductivity (EC), and N and potassium (K) concentrations, coupled with the smallest phosphorus (P) concentration and C:N ratios, were detected in autumn. Degradation of C peaked in autumn, whereas P and N mobilization usually peaked in spring. Our results showed that, beyond local site effects, there were detectable effects of tree genotype and season in Mediterranean forest soils, which governed microbially mediated processes that might have relevant functional consequences at the ecosystem level. Highlights Tree genotype and season shape the features and functioning of Mediterranean forest soils. Tree genotype, season and site effects on soil are identified separately under field conditions. Intraspecific genetic variation of trees defines soil properties and functioning. Tree genotype and season are key regulators of the edaphic environment in Mediterranean forests.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Tree genotype and seasonal effects on soil properties and biogeochemical functioning in Mediterranean pine forests

Pérez‐Izquierdo

Saint‐André²,

Santenoise³

et al. 2018

European J Soil Science

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“…Soil bulk density is an important indicator reflecting soil compaction. Soil with high bulk density has low porosity, high compaction, and poor ventilation, hinders plant uptake and return of soil nutrients, and finally affects litter decomposition and inhibits nutrient accumulation [47]. The level of phosphorus in the soil depends on the source and the relative strength of the loss.…”

Section: Environmental Factors Affecting Differences In Soil Stoichiomentioning

confidence: 99%

“…This leads to a lack of soil phosphorus and lower availability of nutrients, which makes it difficult for plants to absorb nutrients [46]. Different types of vegetation are also a possible reason for the variation of soil stoichiometry at different elevations [47]. Studies on P. sylvestris var.…”

Section: Environmental Factors Affecting Differences In Soil Stoichiomentioning

confidence: 99%

Elevation Gradient Altered Soil C, N, and P Stoichiometry of Pinus taiwanensis Forest on Daiyun Mountain

Jiang

Liu

et al. 2019

Forests

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Researches focused on soil carbon (C), nitrogen (N), and phosphorus (P) content and the stoichiometry characteristics along elevation gradients are important for effective management of forest ecosystems. Taking the soil of different elevations from 900 to 1700 m on Daiyun Mountain as the object, the elevation distribution of total C, N, and P in soil and their stoichiometry characteristics were studied. Also, the driving factors resulting in the spatial heterogeneity of soil stoichiometry are presented. The results show the following: (1) The average soil C and N content was 53.03 g·kg−1 and 3.82 g·kg−1, respectively. The content of C and N at high elevation was higher than that of at low elevation. Soil phosphorus fluctuated with elevation. (2) With increasing elevation, soil C:N ratio increased initially to 17.40 at elevation between 900–1000 m, and then decreased to 12.02 at elevation 1600 m. The changing trends of C:P and N:P were similar, and they all fluctuated with elevation. (3) Elevation, soil bulk density, and soil temperature were the main factors influencing the variation of soil C, N, and C:N. Soil pH and slope position were the driving factors for soil P, C:P, and N:P. The soil is rich in C and N, and has less total phosphorus on Daiyun Mountain. Raising the level of phosphate fertilizer appropriately can help to improve soil fertility and promote plant growth as well. In light of this information, in the near future, it will be necessary to conduct separation management of C, N, and P with regular monitoring systems to maintain favorable conditions for soil.

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Extracted samples and in situ soil investigations to assess the effects of different land use and tillage management practices on soil organic matter composition

Masoudi¹,

Centeri²,

Karlik

et al. 2023

Land Degrad Dev

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The effects of land use change on soil organic carbon (SOC) content have been investigated extensively. However, little research has been conducted on how soil organic matter (SOM) chemistry changes under different land use management practices, particularly with different soil cultivation methods. Thus, in this study, we compared the effects of various land use management practices, including six medium‐term tillage practices, namely no‐tillage (zero‐tillage), disking, shallow cultivation, deep cultivation, ploughing, and loosening, and a natural ecosystem, namely tree line, on SOM composition. The present study examined Chernozem soils during spring and autumn under varying land uses in randomised complete block designs, with four replicates at depth increments of 0–10 cm. The SOM composition was characterised using diffuse reflectance infrared Fourier transformat spectroscopy (DRIFTS) and ultraviolet–visible spectroscopy (UV‐VIS). More intensive tillage operations resulted in larger SOM composition changes. Overall, conservation tillage, namely no‐tillage, disking, shallow cultivation, and deep cultivation, SOM was more like the tree line soil than the soil under conventional tillage. Both DRIFTS and UV‐VIS revealed that tree line soil had the lowest aromaticity (15%) and, therefore, a lower decomposition rate and higher SOM recalcitrance compared with the cropland soil (27%). After observing the relationship between tillage operation and aromaticity, aromaticity increased with increasing tillage intensity. This study demonstrates that land use can alter the structure and stability of SOM compounds. We observed that afforestation is similar to conservation tillage, and results are obtained quickly (<40 years). Hence, regeneration agriculture and conservation tillage may be the superior solutions for increasing SOM, sustainable agriculture, and food security in current soil and climate conditions. In addition, DRIFTS measurements of bulk soil provided more detailed information on the quality and stability of SOM than UV‐VIS measurements.

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Differential effects of conifer and broadleaf litter inputs on soil organic carbon chemical composition through altered soil microbial community composition

Cited by 38 publications

References 60 publications

Tree genotype and seasonal effects on soil properties and biogeochemical functioning in Mediterranean pine forests

Tree genotype and seasonal effects on soil properties and biogeochemical functioning in Mediterranean pine forests

Elevation Gradient Altered Soil C, N, and P Stoichiometry of Pinus taiwanensis Forest on Daiyun Mountain

Extracted samples and in situ soil investigations to assess the effects of different land use and tillage management practices on soil organic matter composition

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