Carbon and nitrogen mineralization kinetics as affected by tillage systems in a calcareous loam soil

Raiesi, Fayez; Kabiri, Vida

doi:10.1016/j.ecoleng.2017.05.023

Cited by 20 publications

(13 citation statements)

References 52 publications

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“…In this study, we returned crop residue into the soil with conventional tillage, but this method did not show a high use efficiency compared with conservation tillage. This may be because using the moldboard plow resulted in a low BD value (Figure ) in the surface soil, causing accelerated mineralization of soil carbon (D'Haene, Sleutel, De Neve, Gabriels, & Hofman, ; Raiesi & Kabiri, ).…”

Section: Resultsmentioning

confidence: 99%

Tillage system change affects soil organic carbon storage and benefits land restoration on loess soil inNorthChina

Wang

Zhang

et al. 2018

Land Degrad Dev

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Soil organic carbon (SOC) is a core indicator of soil quality. A proper tillage system can improve SOC accumulation and benefit land restoration. This improvement is especially significant in loess soil, which is undergoing serious degradation in China. In this study, we chose a field that was used for crop production and used a traditional moldboard plow with crop residue removal (CT) for over 10 years. We then carried out a long-term field experiment (2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015) and changed the tillage system from a moldboard plow with crop residue removal to either a moldboard plow with buried straw system (BT), a no-tillage with straw mulch system (NT), or a subsoiling with straw mulch system (ST) to evaluate the effect of tillage system change and the effects of tillage systems on SOC storage. Tillage system change influenced SOC content, NT, ST, and BT showed higher values of SOC content and increased 8.34, 7.83, and 1.64 Mg·C·ha −1 , respectively, compared with CT. Among the 3 changed tillage systems, NT and ST showed a 12.5% and 11.6% increase in SOC content then BT, respectively. Tillage system change influenced SOC stratification ratio values, with higher value observed in BT and NT compared CT but ST. Therefore, in loess soil, changing tillage system can significantly improve SOC storage and change profile distribution. The NT and ST treatments showed a more marked SOC increase, but the increase value in stratification ratio with NT still needs attention, and our results is meaningful for soil quality improvement and land restoration.

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Section: Resultsmentioning

confidence: 99%

Tillage system change affects soil organic carbon storage and benefits land restoration on loess soil inNorthChina

Wang

Zhang

et al. 2018

Land Degrad Dev

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“…The methodology described by Raiesi and Kabiri () was used for soil incubation. Briefly, in the air‐tight 250 ml jar, a 30 g air‐dry soil sample was kept at 70% of the water holding capacity (saturation capacity).…”

Section: Methodsmentioning

confidence: 99%

“…The SOC variability of site-specific agricultural practices (e.g., conservation tillage) should be compared and identified to reduce temporary SOC loss. Conservation tillage is known to reduce SOC variability due to the decreased SOC decomposition (Raiesi & Kabiri, 2017). However, few studies have been conducted to identify its long-term effects on SOC variability (van Groenigen et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Temporal variability of soil organic carbon in paddies during 13‐year conservation tillage

Wang

Zhao

et al. 2019

Land Degrad Dev

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Decreasing temporal variability of soil organic carbon (SOC) can avoid its temporary loss, which is positive to SOC accumulation and mitigation of climate change. Thus, this study was designed to analyze the temporal variability of SOC stock during 13‐year tillage practices and its driving factors in rice paddies of Southern China. Four tillage practices were studied: no‐till (zero‐tillage) with residues retained on the soil surface (NTS, conservation tillage), rotary tillage with incorporated residues (RTS), moldboard plow tillage with incorporated residues, or with residues removed. The SOC stock at 0–30 cm soil depth varied widely between 2007 and 2017, partly due to the annual temperature and precipitation variations. The temporal variation of SOC was lower under NTS than other tillage practices (p < .05). This was associated with the lower variation of heavy SOC and mineral associated SOC as well as with lower (p < .05) potential mineralizable carbon under NTS. Despite SOC saturated in all treatments, NTS increased (p < .05) the SOC content by 12.1%–35.3% at 0–5 cm soil depth. Thus, NTS in double rice paddies has been proved to be a promising option to maintain high levels of soil C accumulation with low temporal variability, especially at the upper 0–5 cm depth.

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“…After pre-incubation for 7 days, all jars were maintained at 25 • C for 60 days. The released CO 2 was trapped by 1 M NaOH, and potentially mineralized C was measured as CO 2 emissions by titrating the remaining NaOH with HCl; the results are expressed as mg CO 2 -C kg −1 of soil [30].…”

Section: Incubation Experimentsmentioning

confidence: 99%

Effects of Straw Return Mode on Soil Aggregates and Associated Carbon in the North China Plain

Kan

et al. 2020

Agronomy

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Crop straw is widely used to manage soil organic carbon (SOC) sequestration as an environmentally friendly practice in the North China Plain. However, little is known about the effects of straw returning modes on SOC sequestration in this region. Thus, a field experiment was conducted to study SOC accumulation and mineralization as well as aggregate stability and aggregate-associated SOC for the following three straw returning modes: no straw returning (NSR), only wheat straw returning (WR), and both wheat and maize straw returning (WR-MR). SOC concentration and storage were higher for WR and WR-MR than for NSR in the 0–20 cm soil layer, respectively (p < 0.05). Although WR and WR-MR resulted in higher mineralization per unit of soil than NSR, no significant difference in mineralization per unit of soil carbon was observed among straw returning modes in the upper soil layer. The mean weight diameters of aggregates at 0–5 cm were higher under treatments with crop retention than under NSR. At this soil depth, the aggregate-associated C concentration and stock for each soil size were significantly decreased by NSR. These findings suggest that WR-MR and WR are effective residue management practices. In particular, WR is the optimal strategy to enhance SOC sequestration, considering other applications of straw (e.g., forage, fuel, or biomass).

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Carbon and nitrogen mineralization kinetics as affected by tillage systems in a calcareous loam soil

Cited by 20 publications

References 52 publications

Tillage system change affects soil organic carbon storage and benefits land restoration on loess soil inNorthChina

Tillage system change affects soil organic carbon storage and benefits land restoration on loess soil inNorthChina

Temporal variability of soil organic carbon in paddies during 13‐year conservation tillage

Effects of Straw Return Mode on Soil Aggregates and Associated Carbon in the North China Plain

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