ブラジルの野菜家族農業における気候正義と人権の涵養：温室メロン栽培の土壌有機炭素画分をコベネフィットおよび公正移行戦略として評価
CULTIVATING CLIMATE JUSTICE AND HUMAN RIGHTS IN BRAZILIAN VEGETABLE FAMILY FARMING: SOIL ORGANIC CARBON FRACTIONS IN GREENHOUSE MELON AS A CO-BENEFIT AND JUST TRANSITION STRATEGY (原題)
Mariana Rodrigues Fontenelle, N. R. Madeira, Swiany Silveira Lima, Marcos Brandão Braga, Carlos Eduardo Pacheco Lima
🤖 gxceed AI 要約
日本語
ブラジル中部の温室メロン栽培を対象に、慣行耕起・最小耕起・不耕起野菜体系の下で土壌有機炭素（SOC）とその物理画分を2作期にわたり比較した。粒子状有機炭素（POC）は変動が最も大きく、慣行耕起で損失が顕著だった一方、不耕起と最小耕起は炭素保持に有利だった。鉱物結合態炭素（MAOC）は安定だが、第2作期の表層でSOCと強い相関を示した。不耕起・最小耕起は土壌再生と気候適応、公正移行を両立し得ると結論づける。
English
This study measured soil organic carbon and its physical fractions (POC, MAOC) across two greenhouse melon cycles in Brasília under conventional tillage, minimum tillage, and no-till vegetable systems. POC was the most dynamic fraction, with sharper losses under conventional tillage, while no-till and minimum tillage better retained carbon. MAOC was more stable but tracked SOC closely in the second cycle's topsoil. The authors argue these practices can align soil regeneration, climate adaptation, and just transition goals for Brazilian family farming.
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
日本のGX文脈では、Scope 3や農業由来排出の算定、食料システムの脱炭素に関心を持つ読者に、土壌炭素管理の実証的知見を提供する。ただし日本の制度・政策との直接的な接続は薄い。
In the global GX context
For global disclosure scholarship, this adds empirical soil-carbon evidence relevant to agriculture-related Scope 3 accounting and nature/land-use targets under CSRD and ISSB. Its just-transition framing also speaks to social dimensions increasingly expected in transition planning.
👥 読者別の含意
🔬研究者:土壌炭素画分の管理感応性と、耕起体系が炭素保持に与える短期動態を定量化した実証例として参考になる。
🏢実務担当者:農業サプライチェーンや食品企業がScope 3・土地利用排出を検討する際、不耕起導入の炭素保持効果を把握する材料になる。
🏛政策担当者:低炭素農業と公正移行を両立させる小規模農家支援策の設計に、土壌管理の実証的根拠を提供する。
📄 Abstract（原文）
Greenhouse melon cultivation in the Brazilian Midwest sits at the intersection of climate daptation, low-carbon agriculture, and food justice, especially for vegetable family farming, which produces about 67% of national vegetables despite occupying only 23% of agricultural land and facing high climate vulnerability. This study evaluated soil organic carbon (SOC) and its physical fractions under conventional tillage (CT), minimum tillage (MT), and No-Till Vegetable Systems (NTVS) during two greenhouse melon crop cycles in a very clayey dystrophic Rhodic Ferralsol in Brasília, Brazil. The experiment followed a randomized block design with six replicates, two soil depths (0-10 and 10-30 cm), four repeated samplings, and physical fractionation into particulate organic carbon (POC) and mineral-associated organic carbon (MAOC). Significant management × time interactions were detected for POC, MAOC, and SOC mainly in the 0-10 cm layer. POC was the most dynamic fraction, with sharper short-term fluctuations and greater losses under CT, while NTVS and MT generally provided better conditions for carbon retention. MAOC was more stable, but in the second cycle at 0-10 cm it showed a strong positive correlation with SOC (r = 0.970; P = 0.030), suggesting closer tracking of total carbon dynamics in that phase and a possible faster SOC dynamic in Greenhouse cultivation. These results indicate that greenhouse melon under NTVS and MT can align edaphic regeneration, climate adaptation, and just transition goals in Brazilian vegetable family farming.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.18623/rvd.v23.8476first seen 2026-10-17 04:41:04
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