Does the chemical nature of soil carbon drive the structure and functioning of soil microbial communities?

Ng, Ee Ling; Patti, Antonio F.; Rose, Michael T.; Schefe, Cassandra; Wilkinson, Kevin; Smernik, Ronald J.; Cavagnaro, Timothy R.

doi:10.1016/j.soilbio.2013.12.004

Cited by 123 publications

(97 citation statements)

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“…In our case, and despite the coarse texture of soil, an increase of enzyme activities in amended plots was still detectable after 6 years, and the response depended on the type of compost. The quality of the organic matter applied determines the main microbial metabolic pathways, and this can affect soil organic matter content (Ng et al 2014). The enzymatic load of organic amendments might also be responsible for the increase of enzyme activities of soil, especially in the short term (Perucci 1992).…”

Section: Discussionmentioning

confidence: 99%

Persistent effect of organic matter pulse on a sandy soil of semiarid Patagonia

et al. 2014

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Studies of degraded semiarid regions have shown that organic residue addition is a sound restoration alternative. We examined the effects of a single dose (40 Mg ha −1 ) of biosolids compost (BC) and compost of the organic fraction of municipal solid waste (MC) 6 years after they were applied to a sandy soil of NW Patagonia. Results were compared with those of inorganic fertilization (IF, 100 kg N+35 kg P ha −1 ) treatment and of unamended control. We measured plant cover, biomass, and diversity and chemical, biological, and biochemical soil properties. We did not find any significant effect of treatments on plant attributes. However, effects on soil properties were significant and more persistent with composts than with IF, especially with BC, which had higher organic C and nutrients than MC. Total soil C and N were twice as high in the BC-amended soil as in the control and IF soils. Soil extractable P was 4-fold and 2-fold higher in BCand MC-treated soils, respectively, than in the control soil, and even higher than in the IF treatment in response to BC. The highest β-glucosidase and acid phosphomonoesterase activities were found in the BC-treated soil, related to higher C and P in the soil and to higher activities of both enzymes in the biosolids compost. The highest phenol oxidase activity was found in MC and in the MC-treated soil. Potential respiration and K 2 SO 4 -extractable C were higher in the compost-treated soil, but there was no difference in microbial biomass C between the compost-treated and the control soils. Despite the fact that the soil was coarse textured and a single moderate dose of compost was applied, recovery of soil chemical, microbiological, and biochemical properties was long-lasting, indicating that application of urban compost is a feasible restoration practice in this semiarid region.

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Section: Discussionmentioning

confidence: 99%

Persistent effect of organic matter pulse on a sandy soil of semiarid Patagonia

et al. 2014

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“…Microorganisms are actively involved in SOM dynamics and transformation in terms of mineralization and formation (Bowles et al, 2014;Ng et al, 2014). After BC addition, greater decomposition of soil SOC was observed, accompanied by a higher microbial activity (Wardle et al, 2008) or changes in the microbial community (Farrell et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Biochar affects soil organic matter cycling and microbial functions but does not alter microbial community structure in a paddy soil

Tian

Wang

Dippold

et al. 2016

Science of The Total Environment

227

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“…The green waste was collected from municipal green waste and composted following 14 the method of Ng et al (2014). Its characteristics were: total C (16.9%), total N (1.49%), total P…”

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confidence: 99%