Soil organic carbon and soil erodibility response to various land-use changes in northern Thailand

Arunrat, Noppol; Sereenonchai, Sukanya; Kongsurakan, Praeploy; Hatano, Ryusuke

doi:10.1016/j.catena.2022.106595

Cited by 39 publications

(19 citation statements)

References 83 publications

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“…The results showed that plants can affect the soil properties of fissure and non-fissure zones in the FSPS with vegetation restoration, but the variability of each soil erosion indicator with vegetation type is complex. Consistent with previous studies, vegetation restoration positively promoted nutrient accumulation, improved soil structure and aggregate formation, and reduced the difference between fissure and non-fissure zones (Arunrat et al, 2022).…”

Section: Effects Of Vegetation Restoration On Soil Propertiessupporting

confidence: 90%

Effects of vegetation restoration types on soil erosion reduction of a shallow karst fissure soil system in the degraded karst areas of Southwestern China

et al. 2023

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Shallow karst fissures are the main hydrological paths, underground loss channels, and one of the most critical root habitats in fragile karst rocky desertification areas. Revegetation may alter the type of vegetation cover in fissures, resulting in changes to soil properties and erosion reduction. In this study, we evaluate the influence of revegetation on the soil erosion reduction of fissure‐soil–plant systems (FSPS) for three vegetation types (herbs, shrubs, and trees) in FSPS and use bare FSPS without vegetation as a control in a karst rocky desertification area. The results show that the soil physicochemical properties of FSFS degraded first and then improved after abandonment, resulting in the order of soil erosion reduction of FSPS with vegetation succession being: shrub < herb < bare < tree. Vegetation restoration can significantly improve the soil erosion resistance of the 10–20 cm soil layer in the fissure zone, making it stronger than that in the non‐fissure zone, thus reducing the risk of underground leakage on the slope. The results obtained in this study deepen our knowledge of the impact of vegetation restoration type on soil erosion reduction and has significant implications for guiding vegetation restoration and preventing underground leakage in karst areas.

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Section: Effects Of Vegetation Restoration On Soil Propertiessupporting

confidence: 90%

Effects of vegetation restoration types on soil erosion reduction of a shallow karst fissure soil system in the degraded karst areas of Southwestern China

et al. 2023

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“…There are three widely used approaches for assessing soil erodibility (k-factor), namely, the nomograph (Wischmeier et al, 1971), the K-factor in the Environmental Policy Integrated Climate (EPIC) model (Williams et al, 1983), and a formula proposed by Shirazi and Boersma (1984). Among them, the k-factor in the EPIC model is calculated using the OC content and the soil particle distribution (the contents of sand, silt, and clay); this approach is widely used to predict soil erosion and indicate soil degradation (Wu et al, 2012;Chen et al, 2013;Zhang et al, 2018;Liu et al, 2020;Arunrat et al, 2022b;Arunrat et al, 2022c). Therefore, the k-factor in the EPIC model was used in this study, with the following equation:…”

Section: Soil Erodibility Estimationmentioning

confidence: 99%

“…Based on the present study, three possible effective practices for post-fire land management in the RSC fields are recommended. The first is allowing weed and grass growth before burning to reduce soil heat; the survival of shoots and roots of grasses and weeds can facilitate rapid regrowth, supporting soil recovery (Kirchmann et al, 2013;Arunrat et al, 2022c)…”

Section: Implications For Post-fire Land Managementmentioning

confidence: 99%

Post-fire recovery of soil organic carbon, soil total nitrogen, soil nutrients, and soil erodibility in rotational shifting cultivation in Northern Thailand

Arunrat

Sereenonchai

Kongsurakan

et al. 2023

Front. Environ. Sci.

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The hill tribes in Thailand traditionally depend on rotational shifting cultivation (RSC). However, insufficient understanding remains on post-fire soil properties and soil erodibility (k-values) with fallow years. To address this gap, the levels of soil organic carbon (SOC), soil total nitrogen (STN), soil nutrients, and soil erodibility after fire in RSC were investigated. Topsoil (0–10 cm) samples from sites with 4 (RSC-4Y), 5 (RSC-5Y), and 7 (RSC-7Y) fallow years in Chiang Mai Province, northern Thailand, were taken at four time points: before burning, 5 min after burning, 9 months after burning, and 2 years after burning. Soil pH, electrical conductivity, and soil nutrient (available P, K, and Ca) levels were increased after burning and remained higher than the pre-burning levels for at least 2 years. The SOC stock decreased after burning in all fallow fields. At 2 years after burning, the SOC stock in RSC-4Y was higher than before burning, whereas in RSC-5Y and RSC-7Y, the levels had not reached the pre-fire levels. The STN stocks of all studied fields significantly decreased after burning and had not reached the pre-burning levels after 2 years. After burning, the topsoil of RSC-4Y was most susceptible to erosion. However, only in RSC-4Y, the k-value was unchanged at 2 years after burning. Three different approaches are recommended for post-fire land management: 1) farmers should not cut and remove the weeds and grasses at the soil surface, 2) burning should be performed around late winter or early summer (November–February) to inhibit complete combustion, and 3) contour-felled log erosion barriers should be made by using the trunks remaining after the fire to trap the sediment and slow down surface runoff.

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“…Several biological factors influence the processes of soil organic carbon sequestration and decomposition, such as soil depth, temperature sensitivity ( Hyvönen et al, 2007 ; Xu, Luo & Zhou, 2012 ), N deposition ( Law, 2013 ; Schulte-Uebbing, Ros & De Vries, 2022 ), climatic conditions ( Liu, Shao & Wang, 2011 ; Ngaba et al, 2019 ), soil aggregate distribution ( Liu et al, 2018 ; Ngaba, Bol & Hu, 2021 ). Further, soil organic carbon (SOC) sequestration significantly decreases with land use change ( Arunrat et al, 2022 ; Ngaba et al, 2019 ), soil layers, and land use type ( Jobbágy & Jackson, 2000 ; Zhao et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Patterns and controlling factors of soil carbon sequestration in nitrogen-limited and -rich forests in China—a meta-analysis

Ngaba

Uwiragiye

Zhou

2023

PeerJ

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Soil organic carbon (SOC) management has the potential to contribute to climate change mitigation by reducing atmospheric carbon dioxide (CO2). Understanding the changes in forest nitrogen (N) deposition rates has important implications for C sequestration. We explored the effects of N enrichment on soil carbon sequestration in nitrogen-limited and nitrogen-rich Chinese forests and their controlling factors. Our findings reveal that N inputs enhanced net soil C sequestration by 5.52–18.46 kg C kg−1 N, with greater impacts in temperate forests (8.37–13.68 kg C kg−1 N), the use of NH4NO3 fertilizer (7.78 kg Ckg−1 N) at low N levels (<30 kg Ckg−1 N; 9.14 kg Ckg−1 N), and in a short period (<3 years; 12.95 kg C kg−1 N). The nitrogen use efficiency (NUE) varied between 0.24 and 13.3 (kg C kg−1 N) depending on the forest type and was significantly controlled by rainfall, fertilizer, and carbon-nitrogen ratio rates. Besides, N enrichment increased SOC concentration by an average of 7% and 2% for tropical and subtropical forests, respectively. Although soil carbon sequestration was higher in the topsoil compared to the subsoil, the relative influence indicated that nitrogen availability strongly impacts the SOC, followed by dissolved organic carbon concentration and mean annual precipitation. This study highlights the critical role of soil NUE processes in promoting soil C accumulation in a forest ecosystem.

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Soil organic carbon and soil erodibility response to various land-use changes in northern Thailand

Cited by 39 publications

References 83 publications

Effects of vegetation restoration types on soil erosion reduction of a shallow karst fissure soil system in the degraded karst areas of Southwestern China

Effects of vegetation restoration types on soil erosion reduction of a shallow karst fissure soil system in the degraded karst areas of Southwestern China

Post-fire recovery of soil organic carbon, soil total nitrogen, soil nutrients, and soil erodibility in rotational shifting cultivation in Northern Thailand

Patterns and controlling factors of soil carbon sequestration in nitrogen-limited and -rich forests in China—a meta-analysis

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