The advent of stable isotope analysis makes it possible to study priming effects in environments receiving semicontinuous inputs of C, such as the rhizosphere, as well …

8 Jun 2018 to the ocean: are priming effects relevant in aquatic ecosystems? istry rhizosphere priming effect: a meta-analysis. Soil. Biology and

Se piensa que las … 2017-08-01 · Rhizosphere priming effect: A meta-analysis 1. Introduction. Over the past decade, evidence indicates that rhizosphere processes play a crucial role in regulating 2. Materials and methods. In this meta-analysis, we searched for relevant articles in Web of Science database 3.

Rhizosphere priming effects (RPEs) play a central role in modifying soil organic matter min-eralization. However, effects of tree species and intraspeciﬁc competition on RPEs are poorly understood. We investigated RPEs of three tree species (larch, ash and Chinese ﬁr) and the impact of Living roots can influence microbial decomposition of soil organic matter, which has been referred to as the rhizosphere priming effect (RPE). Both microbial carbon efficiency (CUE) and microbial Here, we provide quantitative evidence of a strong coupling between root exudation, SOM decomposition, and release of plant available N caused by rhizosphere priming effects. As plants tend to increase belowground C allocation with increased temperatures and CO 2 concentrations, priming effects need to be considered in our long‐term analysis of soil C budgets in a changing environment.

Rhizosphere priming is the change in decomposition of soil organic matter (SOM) caused by root activity.

Rhizosphere priming effects (RPEs) play a central role in modifying soil organic matter mineralization. However, effects of tree species and intraspecific competition on RPEs are poorly understood. We investigated RPEs of three tree species (larch, ash and Chinese fir) and the impact of intraspecific competition of these species on the RPE by growing them at two planting densities for 140 d.

One of the contributing factors to this uncertainty is the lack of understanding about the role of rhizosphere priming effect (RPE) in shaping the temperature sensitivity. Using a novel continuous 13 C‐labeling method, we investigated the temperature sensitivity of RPE and its impact on the temperature sensitivity of SOM decomposition. It is known that nitrogen (N) input modulates the rhizosphere priming effect (RPE); however, the magnitude and driving mechanisms of priming under increasing rates of fertilizer application remain unclear. 15N-urea (control, 75 (N75), 150 (N150), 225 (N225), and 300 (N300) kg N ha−1) was applied to a plant (maize)-soil (rice paddy) system and the RPE was monitored during the trumpet period

Abstract Rhizosphere priming is crucial for regulating soil carbon and nitrogen biogeochemical cycles. An appreciable number of studies have been conducted to quantify the rhizosphere priming effect (RPE), and have shown that the RPE is sensitive to changes of plant and soil conditions. These diverse results across individual studies offer us an opportunity to explore for potential general

In the presence of plants, a priming effect occurs in the direct vicinity of the living roots, and it is called rhizosphere priming effect (RPE).

• of these rhizosphere interactions is the rhizosphere priming effect (RPE), which is deﬁned as the stimulation or suppression of soil organic matter (SOM)decomposition by live roots and associated rhizosphere organisms when compared to SOM decomposition from rootless soils under the same environmental conditions. Rhizosphere effects can induce an increase or decrease in the decomposition of soil organic carbon (SOC), which is frequently referred to as a positive or negative rhizosphere priming effect (RPE). These rhizosphere effects include root release of organic C and N substances, depletion of nutrients and water, or root-induced chemical changes Effects of rhizosphere properties on the rhizosphere priming effect (RPE) are unknown.
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/ Li, Jian; Zhou, Moyan; Alaei, Saeed; Bengtson, Per. In: Soil Biology and Biochemistry, Vol. 145, 107788, 2020. Research output: Contribution to journal › Article Rhizosphere interactions have high influence on the fluxes of carbon to and from terrestrial ecosystems. One very important part of the rhizosphere interactions is the rhizosphere priming effect (RPE) which is defined as changes in the decomposition rate of soil organic matter (SOM) in response to labile organic carbon input from plant roots.

microorganism leading to high rhizosphere priming effect compared to the other treatments. The higher rhizosphere priming effect explained the greatest CO 2 efflux under well-watered treatment in comparison to the drought-stressed and the control. Greater soil microbial biomass carbon and nitrogen in well-watered treatment than Third, contrasting rhizosphere priming effects under low. nutrient availability may oc cur because priming also depe nds on.
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Abstract Rhizosphere priming is crucial for regulating soil carbon and nitrogen biogeochemical cycles. An appreciable number of studies have been conducted to quantify the rhizosphere priming effect (RPE), and have shown that the RPE is sensitive to changes of plant and soil conditions. These diverse results across individual studies offer us an opportunity to explore for potential general

The large impact of the RPE on soil organic matter decomposition rates (from 50% reduction to 380% increase) warrants similar attention to that being paid to climatic controls on ecosystem functions.