Carbon fluxes from plants to soil and dynamics of microbial immobilization under plastic film mulching and fertilizer application using 13C pulse-labeling

An, Tingting; Schaeffer, Sean M.; Li, Shuangyi; Fu, Suhua; Pei, Jiubo; Li, Hui; Zhuang, Jie; Radosevich, Mark; Wang, Jingkuan

doi:10.1016/j.soilbio.2014.09.024

Cited by 129 publications

(56 citation statements)

References 36 publications

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“…Moreover, nutrient uptake by the reeds may have been more restricted in the narrow space in the root bag in our pot experiment than in the natural ecosystem in situ. A similar nutrientlimitation (especially N) effect on growth in pot experiments has also been found in other studies (Lu et al 2002;Ge et al 2012;An et al 2015).…”

Section: Effect Of Soil Salinity On Reed Biomasssupporting

confidence: 87%

“…This is supported by the higher 13 C recovery at pulse 1 than at the other three pulse labeling times (Table 2). An et al (2015) also report that nutrientlimited treatments had a higher net assimilated 13 C percentage in shoots than did fertilization treatments as a result of normal metabolic processes under a sufficient supply of nutrients.…”

Section: Percentagementioning

confidence: 81%

“…Using the 13 C pulse method (Lu et al 2002;Ge et al 2012;An et al 2015), a pot experiment was carried out from April 22 to August 25 2012 using the LS and HS soils. An internal nylon bag was used for the effective enclosure of the reed roots and rhizosphere soil under flooded conditions and to prevent root growth along the inner wall of the pot.…”

Section: Experimental Designmentioning

confidence: 99%

“…Due to uneven distribution of the 13 C label in the microbial biomass during the initial 6 h, MBC was estimated from the difference between the total organic C in the fumigated and non-fumigated extracts without K ec correction. The organic C in the non-fumigated extracted solution was regarded as DOC (Lou et al 2004;An et al 2015).…”

Section: Sampling and Analysismentioning

confidence: 99%

“…The solutions containing the samples described above were concentrated into solid form before 13 C analysis. Briefly, 0.5 M K 2 SO 4 -extracted fumigated and non-fumigated solutions were ovendried at 60°C and then the residues were ground to pass through a 0.15-mm mesh sieve (Lu et al 2003;Schmitt et al 2013;An et al 2015). For the acid washing solutions, 400 ml was concentrated to 2-3 ml in an oven at 60°C.…”

Section: Sampling and Analysismentioning

confidence: 99%

See 4 more Smart Citations

Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils

Qiu²,

Chen

et al. 2016

Plant Soil

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Section: Effect Of Soil Salinity On Reed Biomasssupporting

confidence: 87%

Section: Percentagementioning

confidence: 81%

Section: Experimental Designmentioning

confidence: 99%

Section: Sampling and Analysismentioning

confidence: 99%

Section: Sampling and Analysismentioning

confidence: 99%

See 3 more Smart Citations

Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils

Qiu²,

Chen

et al. 2016

Plant Soil

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Evaluation of Shell Powder Remediation Effect in Cadmium‐Contaminated Soil: A Score Approach Based on Entropy Indexes

Zhao

et al. 2022

CLEAN Soil Air Water

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A highly effective, economical, and replicable way is imperative to remediate Cadmium (Cd)‐polluted soil. Shell powder is sometimes used to remediate soil contaminated with potentially toxic metals. However, information is limited regarding shell powder assessment. Shell powder is thermally modified at 400, 600, and 800 °C and is added to Cd‐polluted soil for 50 days. The repair effects of shell powder on Cd‐polluted soil are investigated. Compared with the control, the addition of shell powder passivator reduces the content of exchangeable Cd in the soil and converts the exchangeable fraction into other unavailable fractions, especially carbonate‐bound Cd. On average, the value of soil pH increases by one to two units after the application of the powder. Shell powder improves the physical and chemical properties of the soil. Redundancy analysis, entropy method, literature analysis, and theoretical analysis are used for evaluation. Finally, the repair effect score for each treatment group is obtained, and it proves to be a more intuitive method of evaluation. Overall, the results of this study indicate that shell powder is a suitable passivator for the remediation of Cd‐polluted soil. Using a score to express the repair effect is an appropriate evaluation method.

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Effects of nitrogen fertilization on pot‐grown wheat photosynthate partitioning within intensively farmed soil determined by ¹³C pulse‐labeling

Sun

Zhang

et al. 2019

J. Plant Nutr. Soil Sci.

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Understanding rhizodeposited carbon (C) dynamics of winter wheat (Triticum aestivum L.) is important for improving soil fertility and increasing soil C stocks. However, the effects of nitrogen (N) fertilization on photosynthate C allocation to rhizodeposition of wheat grown in an intensively farmed alkaline soil remain elusive. In this study, pot‐grown winter wheat under N fertilization of 250 kg N ha−1 was pulse‐labeled with 13CO2 at tillering, elongation, anthesis, and grain‐filling stages. The 13C in shoots, roots, soil organic carbon (SOC), and rhizosphere‐respired CO2 was measured 28 d after each 13C labeling. The proportion of net‐photosynthesized 13C recovered (shoots + roots + soil + soil respired CO2) in the shoots increased from 58–64% at the tillering to 86–91% at the grain‐filling stage. Likewise, the proportion in the roots decreased from 21–28% to 2–3%, and that in the SOC pool increased from 1–2% to 6–7%. However, the 13C respired CO2 allocated to soil peaked (17–18%) at the elongation stage and decreased to 6–8% at the grain‐filling stage. Over the entire growth season of wheat, N fertilization decreased the proportion of net photosynthate C translocated to the below‐ground pool by about 20%, but increased the total amount of fixed photosynthate C, and therefore increased the below‐ground photosynthate C input. We found that the chase period of about 4 weeks is sufficient to accurately monitor the recovery of 13C after pulse labeling in a wheat–soil system. We conclude that N fertilization increased the deposition of photoassimilate C into SOC pools over the entire growth season of wheat compared to the control treatment.

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Carbon fluxes from plants to soil and dynamics of microbial immobilization under plastic film mulching and fertilizer application using 13C pulse-labeling

Cited by 129 publications

References 36 publications

Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils

Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils

Evaluation of Shell Powder Remediation Effect in Cadmium‐Contaminated Soil: A Score Approach Based on Entropy Indexes

Effects of nitrogen fertilization on pot‐grown wheat photosynthate partitioning within intensively farmed soil determined by ¹³C pulse‐labeling

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Carbon fluxes from plants to soil and dynamics of microbial immobilization under plastic film mulching and fertilizer application using 13C pulse-labeling

Cited by 129 publications

References 36 publications

Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils

Allocation of photosynthestically-fixed carbon in plant and soil during growth of reed (Phragmites australis) in two saline soils

Evaluation of Shell Powder Remediation Effect in Cadmium‐Contaminated Soil: A Score Approach Based on Entropy Indexes

Effects of nitrogen fertilization on pot‐grown wheat photosynthate partitioning within intensively farmed soil determined by 13C pulse‐labeling

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Effects of nitrogen fertilization on pot‐grown wheat photosynthate partitioning within intensively farmed soil determined by ¹³C pulse‐labeling