環境影響評估與生態檢核是我國公共工程環境保護的兩大機制，兩者雖然都關注環境保護，但在目的、時機、範圍、內容等面向各有特色。本研究以桃園捷運棕線為例，分析環境影響評估與生態檢核的關聯性與差異性，探討兩者在實務應用上的落差與整合可能性。 研究方法採用文獻回顧法與個案比較分析法，首先透過文獻回顧建立環境影響評估與生態檢核的理論基礎，其次分析兩者的評估要項因子，再以桃園捷運棕線環境影響說明書為個案進行差異比較分析。研究發現，環境影響評估與生態檢核在棲地空間指認、物種保育細緻度、民眾參與機制等三個面向存在明顯落差。環境影響評估採用全面性評估架構，但生態面向的評估深度有限；生態檢核採用全生命週期管理概念。 環境影響評估與生態檢核兩者具有互補關係，透過適當的整合應用，可以提升環境保護效益，建立更完善的環境保護體系。;Environmental Impact Assessment (EIA) and Ecological Check are two major mechanisms for environmental protection in public works in Taiwan. Although both focus on environmental protection， they possess distinct characteristics in terms of objectives， timing， scope， and content. This study takes the Taoyuan MRT Brown Line as a case study to analyze the correlation and differences between EIA and Ecological Check， exploring the gaps in practical application and the feasibility of their integration. The research methodology adopts literature review and case comparative analysis. First， the theoretical foundations of EIA and Ecological Check are established through a literature review. Second， the evaluation factors of both mechanisms are analyzed. Finally， a comparative analysis of differences is conducted using the Environmental Impact Report of the Taoyuan MRT Brown Line as the case subject. The study finds significant gaps between EIA and Ecological Check in three aspects: habitat spatial identification， the refinement of species conservation strategies， and public participation mechanisms. While EIA employs a comprehensive assessment framework， its depth regarding ecological aspects is limited. In contrast， Ecological Check incorporates the concept of full life-cycle management. EIA and Ecological Check share a complementary relationship. Through appropriate integration and application， the effectiveness of environmental protection can be enhanced， establishing a more comprehensive environmental protection system.
