Soil properties and rate of organic matter decomposition in riparian woodlands using the TBI protocol

Saint-Laurent, Diane; Arsenault-Boucher, Lisane

doi:10.1016/j.geoderma.2019.113976

Cited by 15 publications

(8 citation statements)

References 40 publications

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“…It was reported that the SOC and SON contents primarily depended on the compositions of parent materials, but the leaching and decomposition processes of SOM would also alter the SOC and SON contents [1,37], making it essential to explore the profile distributions of SOC, SON contents and various soil properties. As shown in Table 2, average SOC and SON contents were 3.87 g kg −1 and 1.92 g kg −1 in the soil profile LCJ S-1, 5.19 g kg −1 and 0.96 g kg −1 in the soil profile LCJ S-2, respectively.…”

Section: Distribution Of Soc Son Contentsmentioning

confidence: 99%

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Determining the Distribution and Interaction of Soil Organic Carbon, Nitrogen, pH and Texture in Soil Profiles: A Case Study in the Lancangjiang River Basin, Southwest China

Zhou

Han

Liu

et al. 2020

Forests

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The profile distributions of soil organic carbon (SOC), soil organic nitrogen (SON), soil pH and soil texture were rarely investigated in the Lancangjiang River Basin. This study aims to present the vertical distributions of these soil properties and provide some insights about how they interact with each other in the two typical soil profiles. A total of 56 soil samples were collected from two soil profiles (LCJ S-1, LCJ S-2) in the Lancangjiang River Basin to analyze the profile distributions of SOC and SON and to determine the effects of soil pH and soil texture. Generally, the contents of SOC and SON decreased with increasing soil depth and SOC contents were higher than SON contents (average SOC vs. SON content: 3.87 g kg−1 vs. 1.92 g kg−1 in LCJ S-1 and 5.19 g kg−1 vs. 0.96 g kg−1 in LCJ S-2). Soil pH ranged from 4.50 to 5.74 in the two soil profiles and generally increased with increasing soil depth. According to the percentages of clay, silt, and sand, most soil samples can be categorized as silty loam. Soil pH values were negatively correlated with C/N ratios (r = −0.66, p < 0.01) and SOC contents (r = −0.52, p < 0.01). Clay contents were positively correlated with C/N ratios (r = 0.43, p < 0.05) and SOC contents (r = 0.42, p < 0.01). The results indicate that soil pH and clay are essential factors influencing the SOC spatial distributions in the two soil profiles.

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Section: Distribution Of Soc Son Contentsmentioning

confidence: 99%

“…Soil that is the largest carbon pool in the terrestrial ecosystem owns a strong ability to store organic carbon, which is critical for mitigating global warming caused by increasing atmospheric CO 2 [1,2]. Soil strongly interacts with atmosphere and plant which makes soil an important role in regulating the global carbon cycle [3].…”

Section: Introductionmentioning

confidence: 99%

Determining the Distribution and Interaction of Soil Organic Carbon, Nitrogen, pH and Texture in Soil Profiles: A Case Study in the Lancangjiang River Basin, Southwest China

Zhou

Han

Liu

et al. 2020

Forests

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“…Soil organic matter decomposition is a fundamental ecosystem process that allows for the cycling of nutrients. The rate of organic matter decomposition is measured using various test objects, such as filter paper [1] , [2] , [3] , [4] , linen [ 5 , 6 ] or cotton [7] , [8] , [9] fabric, tea bags [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , components of woody or herbaceous plants (needles, leaves and branches) [ 11 , [17] , [18] , [19] ]. Recently, the tea bags have become the most widely used among them with the subsequent calculation of a Tea Bag Index (TBI) [ 10 , [20] , [21] , [22] ] proposed by [23] .…”

Section: Background Informationmentioning

confidence: 99%

Protocol of conjugate evaluation of the biological activity of soils in terms of cellulolytic activity and biological consumption of oxygen

et al. 2022

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“…In total, 3792 bags were buried at a depth of 8 cm in cranberry beds in 2017 and 2018. The number of bags was much larger than the 110 to 234 bags used for within one-year ecological [60,61] and laboratory [62] experiments due to the bags being damaged during unearthing or not being found in the tough cranberry mat, the high requirement for model testing, and the need to composite samples to run biochemical analyses.…”

Section: Litter Bagsmentioning

confidence: 99%

Tea Bag Index to Assess Carbon Decomposition Rate in Cranberry Agroecosystems

et al. 2021

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In cranberry production systems, stands are covered by 1–5 cm of sand every 2–5 years to stimulate plant growth, resulting in alternate layers of sand and litter in soil upper layers. However, almost intact twigs and leaves remain in subsurface layers, indicating a slow decomposition rate. The Tea Bag Index (TBI) provides an internationally standardized methodology to compare litter decomposition rates (k) and stabilization (S) among terrestrial ecosystems. However, TBI parameters may be altered by time-dependent changes in the contact between litter and their immediate environment. The aims of this study were to determine the TBI of cranberry agroecosystems and compare it to the TBI of other terrestrial ecosystems. Litters were standardized green tea, standardized rooibos tea, and cranberry residues collected on the plantation floor. Litter decomposition was monitored during two consecutive years. Added N did not affect TBI parameters (k and S) due to possible N leaching and strong acidic soil condition. Decomposition rates (k) averaged (mean ± SD) 9.7 × 10−3 day−1 ± 1.6 × 10−3 for green tea, 3.3 × 10−3 day−1 ± 0.8 × 10−5 for rooibos tea, and 0.4 × 10−3 day−1 ± 0.86 × 10−3 for cranberry residues due to large differences in biochemical composition and tissue structure. The TBI decomposition rate (k) was 0.006 day−1 ± 0.002 in the low range among terrestrial ecosystems, and the stabilization factor (S) was 0.28 ± 0.08, indicating high potential for carbon accumulation in cranberry agroecosystems. Decomposition rates of tea litters were reduced by fractal coefficients of 0.6 for green tea and 0.4 for rooibos tea, indicating protection mechanisms building up with time in the tea bags. While the computation of the TBI stabilization factor may be biased because the green tea was not fully decomposed, fractal kinetics could be used as additional index to compare agroecosystems.

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Soil properties and rate of organic matter decomposition in riparian woodlands using the TBI protocol

Cited by 15 publications

References 40 publications

Determining the Distribution and Interaction of Soil Organic Carbon, Nitrogen, pH and Texture in Soil Profiles: A Case Study in the Lancangjiang River Basin, Southwest China

Determining the Distribution and Interaction of Soil Organic Carbon, Nitrogen, pH and Texture in Soil Profiles: A Case Study in the Lancangjiang River Basin, Southwest China

Protocol of conjugate evaluation of the biological activity of soils in terms of cellulolytic activity and biological consumption of oxygen

Tea Bag Index to Assess Carbon Decomposition Rate in Cranberry Agroecosystems

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