Landslide and aspect effects on artificial soil organic carbon fractions and the carbon pool management index on road-cut slopes in an alpine region

Jiang, Xue; Xu, Dapeng; Rong, Jianjun; Ai, Xiaoyan; Ai, Shenghao; Su, Xiaoqiao; Sheng, Meihua; Yang, Sen; Zhang, Jianjing; Ai, Yingwei

doi:10.1016/j.catena.2020.105094

Cited by 37 publications

(19 citation statements)

References 53 publications

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“…The carbon pool index (CPI), carbon pool activity (CPA), carbon pool activity index (CPAI) and CPMI were calculated, according to Blair et al (1995) and Jiang et al (2021) as below Eq. ( 5):…”

Section: Labile Soil Organic Carbon Fractionsmentioning

confidence: 99%

Effects of returning corn straw and fermented corn straw to fields on the soil organic carbon pools and humus composition

Zhang

Dou

Ndzelu

et al. 2021

Preprint

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Abstract. In our previous studies, we filtered out fungus (Trichoderma reesei) to have the best ability to transform corn straw into a humic acid-like substance through laboratory incubation experiments. In order to further verify our former findings, we set up a 360 day-field experiment that included three treatments applied under equal C mass: (i) corn straw returned to the field (CS), (ii) fermented corn straw treated with Trichoderma reesei returned to the field (FCS-T), and (iii) blank control treatment (CK). Soil organic carbon (SOC), soil labile organic C components, soil humus composition, and the management levels of SOC pools under the three treatments were analyzed and compared. The results showed that the SOC content of CS and FCS-T treatments increased by 12.71 % and 18.81 %, respectively, compared with CK at 360 d. The humic acid carbon (HA-C) content of the FCS-T treatment was 0.77 g/kg higher than in the CS treatment. Application of FCS-T appeared to promote the significant increase of SOC, carbon pool activity index (CPAI) and carbon pool management index (CPMI) through accumulation of HA-C, humin carbon (HM-C), and easily oxidizable organic carbon (EOC) contents. Application of fermented corn straw treated with Trichoderma reesei (FCS-T) is more valuable and conducive to increasing soil EOC and humus C content than direct application of corn straw.

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Section: Labile Soil Organic Carbon Fractionsmentioning

confidence: 99%

Effects of returning corn straw and fermented corn straw to fields on the soil organic carbon pools and humus composition

Zhang

Dou

Ndzelu

et al. 2021

Preprint

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“…To restore the ecology destroyed by a cut slope to its natural state as soon as possible, various countries, including China, have adopted many restoration technologies. Soil spray seeding has been widely used in these areas because of its strong adaptability and rapid effect (Jiang et al, 2021). This process generally consists of laying soil consolidation mesh on a cut slope, then fixing it with anchor bolts and rivets, and finally spraying artificial soil on it with special sprayers (Ai, Sheng, et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Currently, galvanized wire mesh and three‐dimensional (plastic) mesh are the most commonly used soil consolidation meshes, and their differences are bound to directly or indirectly affect biotic or/and abiotic factors, and then change soil properties of a cut slope. However, the current studies on cut slopes were based on galvanized wire mesh as the consolidation mesh (Huang et al, 2017; Li, Kan, et al, 2018; Li, Zhang, et al, 2018; Zhu et al, 2020; Jakšić et al, 2021; Jiang et al, 2021) and ignored the difference between three‐dimensional mesh and galvanized wire mesh. Additionally, there have been few comparative studies on the effect of treating a cut slope with three‐dimensional mesh and galvanized wire mesh on SOC stock changes.…”

Section: Introductionmentioning

confidence: 99%

The formation of small macro‐aggregates induces soil organic carbon stocks in the restoration process used on cut slopes in alpine regions of China

et al. 2022

Self Cite

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Road construction in mountainous areas of China has formed bare slopes on a large scale, which has aggravated soil erosion and carbon loss, and the restoration processes have changed soil structure and fertility. However, there are few reports regarding the differences of soil aggregate dynamics and SOC sequestration under different restoration process for cut slopes. In this study, three types of cut slopes [cut slope restored naturally (CSN); cut slope restored with three‐dimensional mesh (CST); cut slope restored with galvanized wire mesh (CSG)] and natural slope (NS) in alpine regions were selected as the research objects. SOC stocks and their key driving factors were then analyzed. The results showed that CSG was more beneficial to the formation of macro‐aggregates than CSN and CST. There were significant differences in wet‐sieved aggregate stability under different restoration process, where the sort by strength of stability was NS > CSG > CST > CSN. Aggregate size was a more important factor for SOC stocks than restoration process. The increase of SOC stocks was mainly due to that within small macro‐aggregates. RandomForest analysis revealed that the mass proportion of micro‐aggregates was the most important factor affected SOC stocks, while SOC stocks within large macro‐aggregates and small macro‐aggregates and porosity significantly affected SOC stocks. Partial least squares path modelling analysis found the particle size and stability of aggregates had negative total effects on SOC stocks, and SOC content had positive total effect on that. Overall, for the ecological restoration of cut slope in alpine regions, CSG was most beneficial to increase soil aggregate stability and SOC stocks.

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“…Consequently, sustainable management and conservation of mountain environments and their carbon storage capacity are important for maintaining the highland degraded forests. Several studies have been carried out to estimate differences in soil organic carbon (SOC) in relation to vegetation and soil properties, land uses, and climate (Rhoades et al, 2000;Li and Zhao, 2001;Lemenih and Itanna, 2004;Göl, 2009;Göl et al, 2010a;Göl et al, 2010b;Göl et al, 2017;Işık and Göl, 2021;Jiang et al, 2021;Novara et al, 2021). Spatial variation of soil properties is significantly influenced by numerous environmental factors such as landscape features, including position, topography, slope gradient and aspect, parent material, climate and vegetation (Tsui et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Influences of slope aspects on soil properties of Anatolian black pine forests in the semiarid region of Turkey

Göl

2022

Anadolu Orman Araştırmaları Dergisi

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This study assessed the influences of slope aspect on soil physicochemical properties (soil quality indicators) on contiguous south-north facing slopes and hill plain (ridge crest) of the mid-mountain in Central Anatolia, having the same climate, vegetation and parent material. Anatolian black pine (Pinus nigra subsp. Pallasiana var. Pallasiana (Arnold)) was the dominant, and Cedar (Cedrus libani A. Richard), oak (Quercus sp.) were the co-dominant species in all aspects, whereas juniper (Juniperus sp.) was only recorded in north-facing forests. Some of the soil properties were determined on a grid with a 50 m sampling distance on the topsoil (0-15 cm depth). Accordingly, a total of 150 samples were taken from the three adjacent aspects. The data was analyzed using one-way ANOVA statistical methods. The investigated soil variables were soil organic matter (SOM), soil organic carbon (SOC), total nitrogen (TN), bulk density (BD), texture, lime (CaCO3), and pH. The showed that differences between SOC, BD and soil texture were statistically significant at 0.05 levels. Topographic aspect induced microclimatic differences were found to be important factors for the significant variations in SOC stocks. The resulting analyses showed no significant variation (p < 0.05) across slope aspects for SOM, TN, lime, and pH. The differences may be attributed to topographic aspect induced microclimatic differences, which cause differences in the biotic soil component and organic matter trend and affect soil fertility. These results suggest that the slope aspect affects the soils of mountain forests through their direct influence on radiation, evaporation, biological activity, and soil moisture content.

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Landslide and aspect effects on artificial soil organic carbon fractions and the carbon pool management index on road-cut slopes in an alpine region

Cited by 37 publications

References 53 publications

Effects of returning corn straw and fermented corn straw to fields on the soil organic carbon pools and humus composition

Effects of returning corn straw and fermented corn straw to fields on the soil organic carbon pools and humus composition

The formation of small macro‐aggregates induces soil organic carbon stocks in the restoration process used on cut slopes in alpine regions of China

Influences of slope aspects on soil properties of Anatolian black pine forests in the semiarid region of Turkey

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