| 研究生: |
蘇俊佑 Su, Jyun-You |
|---|---|
| 論文名稱: |
企業投入海岸植林碳匯可行性之研究—以生態基礎設施與ESG價值整合為核心 A Study on the Feasibility of Corporate Investment in Coastal Afforestation Carbon Sink Projects: An Eco-Infrastructure and ESG Value Integration Approach |
| 指導教授: |
陳耀光
Chen, Yao-Kuang |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 工程管理碩士在職專班 Engineering Management Graduate Program |
| 論文出版年: | 2026 |
| 畢業學年度: | 114 |
| 語文別: | 中文 |
| 論文頁數: | 87 |
| 中文關鍵詞: | 土沙管理 、自然解方(NbS) 、海岸植林 、海岸自然資本 、公私協力(PPP) |
| 外文關鍵詞: | Sediment Management, Nature-based Solutions (NbS), Coastal Afforestation, Coastal Natural Capital, Public–Private Partnership (PPP) |
| 相關次數: | 點閱:34 下載:0 |
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近年因應淨零排放、ESG 及供應鏈減碳要求,企業積極尋求投入自然碳匯之機會。然而,臺灣陸域土地資源有限,使企業推動造林碳匯面臨場域取得困難與長期經營限制。兼具退化地復育、保安林功能提升及國土保全需求的海岸地區,逐漸成為企業參與自然投資的潛在場域。
海岸侵蝕並非單純的海堤防護問題。以臺南市雙春海岸為例,其侵蝕核心在於上游輸沙減少與沿岸漂沙阻隔所造成的長期土沙收支失衡(土沙赤字)。雖然人工養灘與自然解方(NbS)已展現階段性效益,但砂體仍易受颱風巨浪沖刷流失。本研究強調,海岸植林並非海岸治理的起點,而是必須在土沙管理、人工養灘、近岸減能及柔性固沙取得地形穩定後,方能推動的「生態系統重建」後期階段。
本研究採用多準則分析(MCA)與情境模擬法,以南雙春至中雙春1,880 公尺海岸線為情境,建構包含減能船、柔性固沙與植林之四期投資模型,進行成本效益與敏感度分析。
在效益與可行性方面,本研究區分「自然碳匯」與「可交易碳權」,並以減能船、柔性固沙及植林之四期專案進行投資模型評估。結果顯示,專案具備高前期投入成本與碳匯累積時間差,單靠碳權收益無法涵蓋海岸復育之龐大成本。因此,碳權宜定位為輔助效益;海岸復育的核心價值應建立於海岸防護、國土保全、生物多樣性與生態系服務等多元自然資本效益上。
本研究建議,企業應由「碳權買方」轉型為「海岸自然資本治理的長期夥伴」。透過結合TNFD揭露、ESG策略價值與「政府主責、企業參與、第三方驗證」之公私協力(PPP)機制,劃分權責與風險配置,方能建立兼顧生態防護、社會公共利益與企業永續價值的海岸永續治理模式。
Climate change, coastal erosion, and growing corporate commitments to net-zero emissions have increased interest in nature-based solutions. However, Taiwan's limited land resources constrain large-scale afforestation, making degraded coastal areas a potential option for ecological restoration and natural carbon sinks. Using the Shuangchun coast in Tainan as a case study, this research evaluates the feasibility of corporate participation in coastal natural capital governance through literature review, policy analysis, engineering assessment, and cost–benefit analysis.
The study proposes a four-phase coastal restoration framework comprising sediment management and beach nourishment, wave energy dissipation, flexible sand stabilization, and coastal afforestation. The results demonstrate that coastal afforestation should not be regarded as the starting point of coastal restoration but as the final stage after coastal geomorphology and sediment conditions have been stabilized.
Financial analysis indicates that the proposed restoration project requires an investment of approximately NT$192.1 million. A 9-hectare coastal forest is estimated to sequester 2,700–4,050 tCO₂e over 30 years, while carbon credit revenues would recover only 4.2%–6.3% of the total project cost. These findings indicate that carbon credits alone cannot justify long-term investment in coastal restoration.
The principal value of coastal afforestation lies in restoring coastal natural capital through shoreline protection, ecosystem services, biodiversity conservation, enhanced coastal resilience, and reduced future public expenditures. This study recommends that future coastal restoration adopt a long-term Public–Private Partnership (PPP) framework, enabling enterprises to participate as long-term partners in natural capital governance rather than merely purchasing carbon credits.
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