生物多様性と都市の低炭素開発：北京市海淀区における実証研究
Biodiversity and urban low-carbon development: an empirical study from Haidian District, Beijing (原題)
Wei Dai, Yukun Zhang, Tim Heath
🤖 gxceed AI 要約
日本語
北京市海淀区の40固定調査区・12年パネルデータを用い、植物・鳥類・両生類・土壌動物を統合した生物多様性指数（BD）を構築。GLMM分析により、BD指数は炭素吸収能力と正に関連する一方、緑被率単独では関連しないことを示した。生物多様性の炭素吸収への限界的寄与は時間とともに増大し、面積依存から質依存への「質的転換」と整合的である。
English
Using a 12-year panel of 40 permanent quadrats in Haidian District, Beijing, the authors build a composite Biodiversity Index covering plants, birds, amphibians and soil fauna. GLMM results show biodiversity is positively associated with carbon sink capacity, while green coverage alone is not. The rising marginal contribution of biodiversity over time supports a shift from area-based to quality-driven greening.
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
日本ではTNFD対応や生物多様性保全の企業開示が拡大しており、都市緑地の質と炭素吸収を結びつける本知見は、自治体の都市計画や企業の自然資本評価に示唆を与える。ただしSSBJ・有報の開示制度との直接の接続は限定的。
In the global GX context
As TNFD adoption and nature-related disclosure (CSRD, ISSB biodiversity work) expand, this paper offers longitudinal evidence linking urban biodiversity quality to carbon sequestration—useful for cities and firms building nature-positive strategies beyond simple green-coverage metrics.
👥 読者別の含意
🔬研究者:都市生態系における生物多様性と炭素吸収の独立性を示す長期実証として、自然資本・生態系サービスの定量研究に有用。
🏢実務担当者:緑被率だけでなく生物多様性の質を指標化する視点は、TNFD・自然資本評価や都市開発のKPI設計に応用できる。
🏛政策担当者:都市緑化政策を面積拡大から質的向上へ転換する根拠として、炭素会計への生物多様性プレミアム導入の検討材料になる。
📄 Abstract（原文）
Urban areas face the dual challenge of mitigating carbon emissions while halting biodiversity loss, yet longitudinal evidence from Asian megacities on whether biodiversity independently enhances carbon sequestration remains limited. This study examines the biodiversity–carbon relationship using a twelve-year panel dataset from Haidian District, Beijing—a highly urbanized region where green space expansion has largely reached its spatial limits. Based on a systematic monitoring network of 40 permanent quadrats across 22 subdistricts, we constructed a comprehensive Biodiversity Index (BD) integrating plant, bird, amphibian, and soil fauna diversity with ecosystem quality and ecological function indicators. Using Generalized Linear Mixed Models (GLMMs) with quadrat and year as random effects, we find that the BD index is positively associated with carbon sink capacity, whereas green coverage alone does not. Plant and bird diversity emerge as positive predictors, with amphibian diversity exhibiting context-dependent effects confined to wetland habitats. The increasing marginal contribution of biodiversity to carbon sinks over time is consistent with a "quality transition" from area-based to quality-driven greening. The findings provide longitudinal empirical evidence that biodiversity restoration is associated with low-carbon development after urbanization stabilizes. Policy implications include integrating biodiversity premiums into carbon accounting, prioritizing functional complementarity in species selection, and protecting ecological corridors that sustain trophic interactions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s11252-026-02165-3first seen 2026-10-31 04:57:47 · last seen 2026-11-06 04:49:54
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