The varied ecosystems within the Chindwin River Basin (CRB) and its natural biodiversity make it one of the most critical hotspots in the Indo-Burma region. Key Biodiversity Areas (KBA) in the CRB are increasingly facing threats from development activities, such as commercial logging, mining, and agriculture. This study applies a mixed approach to assess the level of threat and to quantify key ecosystem services at the basin and KBA levels. A GIS-based Multi-Criteria Decision Making (MCDM) approach was used to assess threats from key economic sectors via stakeholder participation. The InVEST model was applied to assess ecosystem services including water yield, sediment retention, nutrient retention, and carbon storage. The most significant threats to biodiversity in the basin were found to be mining, logging, dam construction, and agriculture. The highest degree of ecosystem services was found in the northern CRB, which is almost completely covered by forest. Overall, 87% of KBAs provide a high degree of ecosystem services. The KBAs were prioritized for conservation based on the threat level and degree of ecosystems provided, as well as in consultation with stakeholders. The results of this study provide a strategic focus for preparing an environment conservation strategy and action plan for the CRB in Myanmar.

钦德温河流域（CRB）内多样的生态系统及其自然生物多样性使其成为印度缅甸地区最关键的热点之一。CRB中的关键生物多样性区（KBA）日益面临来自商业伐木，采矿和农业等发展活动的威胁。这项研究采用了一种混合方法来评估威胁水平，并量化流域和KBA级别的关键生态系统服务。使用基于GIS的多标准决策（MCDM）方法通过利益相关者的参与来评估关键经济部门的威胁。InVEST模型用于评估生态系统服务，包括水产量，沉积物保留，养分保留和碳储存。该流域对生物多样性的最大威胁是采矿，伐木，水坝建设和农业。北部CRB发现了最高程度的生态系统服务，几乎完全被森林覆盖。总体而言，KBA的87％提供高度的生态系统服务。根据所提供的生态系统的威胁程度和程度以及与利益相关者的协商，将KBA列为保护的优先事项。这项研究的结果为制定缅甸CRB的环境保护战略和行动计划提供了战略重点。