Soil physical quality and organic carbon dynamics in low-input perennial rubber plantations across a chronosequence in the Brazilian Cerrado
ブラジル・セラードにおける低投入型多年生ゴム農園の土壌物理性と有機炭素動態 (AI 翻訳)
Luis Felipe Leite Sabino de Oliveira, Lucas Eduardo de Oliveira, Taisa Cristina Tinoco, Fernando Antônio de Souza, Hamilton César de Oliveira Charlo, Leonardo Carneiro Morgado, Arcângelo Loss, Dinamar Márcia da Silva Vieira, José Luiz Rodrigues Torres
🤖 gxceed AI 要約
日本語
ブラジルセラードの砂質オキシソルにおける低投入型ゴム農園の経年変化を評価。古い農園ほど土壌物理性が改善し、有機炭素蓄積量が自然林を上回った。低投入管理でも長期で炭素貯留が可能であることを示す。
English
This study evaluates soil physical quality and organic carbon stock dynamics in low-input rubber plantations on degraded sandy Oxisols in the Brazilian Cerrado. Older plantations showed improved soil structure and carbon accumulation, with the oldest site exceeding native forest carbon stocks. It demonstrates the potential of low-input perennial systems for soil restoration and carbon sequestration.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
本研究成果はブラジルの熱帯劣化土壌における炭素貯留の可能性を示すものであり、日本のJ-クレジット制度における農地土壌炭素貯留の評価や、東南アジアでの類似事業への応用が考えられる。
In the global GX context
This paper provides empirical evidence of soil organic carbon accumulation in low-input perennial rubber plantations, relevant to global carbon accounting for agricultural land use. It supports the recognition of such systems for carbon offsets and sustainable land management under frameworks like IPCC guidelines.
👥 読者別の含意
🔬研究者:Provides field data on SOC dynamics under low-input management in tropical sandy soils, useful for carbon cycle modeling.
🏛政策担当者:Demonstrates potential of perennial plantations for soil carbon sequestration, informing land-use policy for climate mitigation.
📄 Abstract（原文）
This study evaluated the temporal dynamics of soil physical quality and soil organic carbon (SOC) stocks in Hevea brasiliensis plantations of different ages established on degraded sandy Oxisols in the Brazilian Cerrado under low-input management, focusing on the relationships between seasonal litter inputs, soil structural development, and SOC accumulation over time. Three rubber plantations established in 2006 (S2006), 2007 (S2007), and 2009 (S2009), together with a reference native forest stand (NF), were evaluated at soil depths of 0.00–0.40 m. After the first two years following establishment, no additional fertilization or herbicide applications were performed. Soil physical attributes, aggregation indices, total organic carbon (TOC), and SOC stocks were determined. Older plantations exhibited lower penetration resistance, higher porosity, and improved soil aggregation, indicating progressive structural recovery over time. The aggregation index (AGRI) was more sensitive than the aggregate stability index (ASI) in detecting structural changes. The oldest plantation (S2006) presented higher TOC and SOC stocks than the adjacent native forest reference stand evaluated in this chronosequence, indicating substantial carbon accumulation under long-term low-input management. Low-input rubber plantations promoted significant improvements in soil physical quality and SOC accumulation in sandy Oxisols of the Brazilian Cerrado. These findings highlight the importance of seasonal litter deposition and natural nutrient cycling in supporting long-term soil structural development. Under the conditions evaluated in this chronosequence, the oldest plantation accumulated SOC stocks higher than those observed in the reference native forest stand, demonstrating the potential of low-input perennial rubber plantations to contribute to soil restoration and carbon accumulation in degraded tropical soils.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s10457-026-01602-8first seen 2026-07-22 05:03:20
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