Assessing changes in soil carbon stocks after land use conversion from forest land to agricultural land in Japan

Koga, Noboru; Shimoda, Süsumu; Shirato, Yasuhito; Kusaba, Takashi; Shima, Takeo; Niimi, Hiroshi; Yamane, Toshimi; Wakabayashi, Katsufumi; Niwa, Katsuhisa; Kohyama, Kazunori; Obara, Hiroshi; Takata, Yusuke; Kanda, Takashi; Inoue, Hiroyoshi; Ishizuka, Shigehiro; Kaneko, Shinji; Tsuruta, Kenji; Hirano, Shoji; Shinomiya, Yoshiki; Aizawa, Shuhei; Ito, Emiko; Hashimoto, Toru; Morishita, Tomoaki; Noguchi, Kyotaro; Ono, Kaori; Katayanagi, Nobuko; Atsumi, Kazuyuki

doi:10.1016/j.geoderma.2020.114487

Cited by 40 publications

(12 citation statements)

References 38 publications

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“…Indeed, with the exception of the organic layers, namely the O horizons, for which there is a general agreement on sampling by horizons (e.g. Koga et al, 2020;Lull et al, 2020), in forest ecosystems mineral soil samples can be collected both by horizons (e.g. Massaccesi et al, 2020;Valtera & Šamonil, 2018) or by fixed depth layers (FDL) (Canedoli et al, 2020;Gross et al, 2018;Tesfaye et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Soil organic carbon stock assessment in forest ecosystems through pedogenic horizons and fixed depth layers sampling: What's the best one?

et al. 2022

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In soil organic carbon (SOC) survey, the role of sampling approach is crucial and should not be underestimated. In this sense, the appropriateness of soil sampling by pedogenic horizons (PGH) and fixed depth layers (FDL) in forest is still a field of debate. The present work aimed to: (a) study the spatial variability of SOC concentrations and C stocks through PGH and FDL samplings in uneven-aged sweet chestnut, European beech and Norway spruce forests of the Apennine chain (Italy); (b) clarify the major advantages and drawbacks of sampling by PGH and FDL. In a representative area (18 Â 18 m) of each forest, a soil profile was investigated and eight additional sampling points were selected. The sampling was performed both by PGH and FDL (0-15 and 15-30 cm). For each forest, no SOC content and C stock differences in 0-30 cm soil depth were found between PGH (58.8 ± 5.3 g kg À1 and 103 ± 7 g ha À1 , respectively) and FDL (52.7 ± 4.3 g kg À1 and 117 ± 9 Mg ha À1 , respectively) sampling. However, under Norway spruce, PGH sampling pointed-out that C was mainly stored in Oe and Oa horizons (51.1 vs. 146 Mg ha À1 in the 0-30 cm layer). The higher coefficient of variation obtained when soil horizons were considered (from 19.2% to 72.8% for PGH and from 16.5% to 25.7% for FDL) suggested that PGH sampling preserved the information about the spatial variability within an ecosystem. The information loss about SOC vertical and spatial distribution would indicate the inability of FDL sampling to support decision-making plans addressed for sustainable use of soil resource.

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Section: Introductionmentioning

confidence: 99%

Soil organic carbon stock assessment in forest ecosystems through pedogenic horizons and fixed depth layers sampling: What's the best one?

et al. 2022

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“…Changes in soil properties after forest conversion to croplands can be substantial, persistent (e.g., detectable even after > 25 years), and extensive (e.g., affecting depths > 0.5 m) (Veldkamp et al 2020). At our study area, the increased soil bulk density and reduced SOC and total N stocks down to 1-m depth in the vegetable farms (Table 2) had resulted from soil compaction brought about by foot traffic of farmers' management operations, reduction in input of organic materials (e.g., harvest export) (Koga et al 2020), and low stability of SOC derived from the present land use as observed for Andosol soils (Paul et al 2008). The decrease in SOC stock in the vegetable farms (Table 2) was at the upper range of those reported for SOC losses from tropical forest-to-cropland conversion (17-58% in the top 0.1 m and 35% in depths > 0.5 m, Veldkamp et al 2020; 30-66% in the top 0.3-0.4 m, Beheshti et al 2012;Powers et al 2011).…”

Section: Changes In Soil Properties Between Forest and Vegetable Farmsmentioning

confidence: 75%

Soil greenhouse gas fluxes from tropical vegetable farms, using forest as a reference

Quiñones

Veldkamp

Lina

et al. 2022

Nutr Cycl Agroecosyst

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Field-based quantification of soil greenhouse gas emissions from the Philippines’ agriculture sector is missing for vegetable production systems, despite its substantial contribution to agricultural production. We quantified soil N2O emission, CH4 uptake, and CO2 efflux in vegetable farms and compared these to the secondary forest. Measurements were conducted for 13 months in 10 smallholder farms and nine forest plots on Andosol soil in Leyte, Philippines using static chambers. Soil N2O and CO2 emissions were higher, whereas CH4 uptake was lower in the vegetable farms than in the forest. Vegetable farms had annual fluxes of 12.7 ± 2.6 kg N2O-N ha−1 yr−1, −1.1 ± 0.2 kg CH4-C ha−1 yr−1, and 11.7 ± 0.7 Mg CO2-C ha−1 yr−1, whereas the forest had 0.10 ± 0.02 kg N2O-N ha ha−1 yr−1, −2.0 ± 0.2 kg CH4-C ha−1 yr−1, and 8.2 ± 0.7 Mg CO2-C ha−1 yr−1. Long-term high N fertilization rates in vegetable farms resulted in large soil mineral N levels, dominated by NO3– in the topsoil and down to 1-m depth, leading to high soil N2O emissions. Increased soil bulk density in the vegetable farms probably increased anaerobic microsites during the wet season and reduced CH4 diffusion from the atmosphere into the soil, resulting in decreased soil CH4 uptake. High soil CO2 emissions from the vegetable farms suggested decomposition of labile organic matter, possibly facilitated by plowing and large N fertilization rates. The global warming potential of these vegetable farms was 31 ± 2.7 Mg CO2-eq ha−1 yr−1 (100-year time frame).

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“…Wise et al (2014) shared this perspective by implying that the expansion of biofuels potentially causes a rise in net cumulative carbon emissions for the first couple of decades as a result of the alterations in the induced land use. Similarly, Koga et al (2020) and Vogdrup‐Schmid et al (2019) both illustrated the trend of carbon loss is significantly associated with the purpose for land conversion.…”

Section: Summary Of Related Studiesmentioning

confidence: 89%

Investigating the carbon emission aspects of agricultural land utilization in Turkey

Kara

Bas

Talu

et al. 2021

Integr Envir Assess & Manag

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As a pathway to environmental sustainability, several approaches to sustainable agriculture practices have consistently been echoed through international government agencies such as the Sustainable Development Goals of the United Nations Development Programme. Given this perspective, this study examines the carbon emission effects of the categories of agricultural land utilization (this includes arable land, permanent cropland, meadows land, and forest land) for Turkey over the period 1988–2019. The study further explores the dimension of carbon dioxide (CO2) emission from agricultural land use for sown crops, fruits and beverages, vineyards, and olives, in addition to the effect of economic expansion. By employing the autoregressive distributed lag empirical approach, the study finds that the use of agricultural land for arable farming and permanent plantation helps to reduce carbon emissions, especially in the long‐run, while the impact of meadows is also desirable only in the short‐run. Consequently, the study further shows that the use of farmland for fruits and beverages, and vineyard mitigates carbon emission, especially in the long‐run. Whereas the use of farmland for olives plantation and fallow exhibits a significant contribution of carbon emission, especially in the short‐run with elasticities of 0.91 and 1.48 respectively. Moreover, economic expansion in Turkey causes significant harm to environmental quality in the long‐run thereby truncating its short‐run desirable environmental effect. In order to sustain the largely efficient agricultural practice in Turkey, the study offers two policy dimensions to the government and the country's stakeholders in the agricultural sector. Integr Environ Assess Manag 2022;18:988–996. © 2021 SETAC

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Assessing changes in soil carbon stocks after land use conversion from forest land to agricultural land in Japan

Cited by 40 publications

References 38 publications

Soil organic carbon stock assessment in forest ecosystems through pedogenic horizons and fixed depth layers sampling: What's the best one?

Soil organic carbon stock assessment in forest ecosystems through pedogenic horizons and fixed depth layers sampling: What's the best one?

Soil greenhouse gas fluxes from tropical vegetable farms, using forest as a reference

Investigating the carbon emission aspects of agricultural land utilization in Turkey

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