Against the backdrop of continued efforts to advance ecological civilization and improve mechanisms for realizing the value of ecological products

accounting for the value of water ecological products has become a critical step in converting ecological advantages into economic and social benefits. However

no generally accepted classification standard or accounting framework has yet been established for water ecological products. Ministerial-level guidance remains limited

local applications are largely confined to pilot areas

and most existing studies focus on the benefits of individual water-related ecosystem services rather than comprehensive value accounting. Taking Liujiaxia Reservoir as the study area and considering the multiple value dimensions of aquatic ecosystems

this study classifies water ecological products into 3 categories:material products

regulating services

and cultural services. An indicator framework for value accounting was developed

and the market value method

replacement cost method

shadow project method

and other interdisciplinary approaches were applied to quantify the monetary value of the reservoirs water ecological products in 2024. The results show that the total value of these products was RMB 30. 398 billion. Material products accounted for RMB 25. 208 billion(82. 9% of the total)regulating services accounted for RMB 5. 133 billion(16. 9%)

and cultural services accounted for RMB 57 million(0. 2%). Raw water supply

hydropower generation

and water purification were the three largest value components. The'study makes the previously implicit value of the reservoirs water ecological products explicit and measurable and provides a practical reference for their classification and valuation. The findings can also support regional ecological compensation

the sustainable utilization of water resources

and the improvement of mechanisms for realizing the value of ecological products. Future research should further integrate interdisciplinary theories

refine accounting methods and institutional arrangements in accordance with regional resource endowments and development conditions

and promote the standardization and institutionalization of water ecological product value accounting.