This study examines the dynamics of Indonesia's Environmental Quality Index (IKLH) within the System of Integrated Environmental-Economic Accounting (SISNERLING) framework, focusing on three main pillars: air quality resilience, water quality, and marine ecosystems. Using data from Statistics of Indonesia's Environment 2025 (BPS, 2025) and SISNERLING 2019–2023, this research analyzes IKLH component trends and national per-capita asset values during 2020–2024. Results show that IKLH improved from 67.32 (2020) to 72.54 (2023), driven by improvements in the Air Quality Index (IKU) and Water Quality Index (IKA); however, the Marine Water Quality Index (IKALUT) experienced concerning downward pressure. Total per-capita national wealth increased from IDR 942.47 million (2020) to IDR 1,132.76 million (2023), yet the contribution of natural resource capital remained stagnant, indicating the need for more integrated environmental management policy reform. This study contributes to the development of a SEEA-EA-based environmental accounting framework and sustainable development policy recommendations for Indonesia.
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