广义生态产品与水土保持生态产品的价值核算边界差异与实现路径OA

Although the accounting of the gross value of generalized ecological products and the valuation of soil and water conservation ecological products share certain indicators and valuation methods,they differ significantly in their intended purposes,objects of attribution,and applicable boundary scopes.Based on the Technical Guidelines for Gross Ecosystem Product Accounting in Terrestrial Ecosystem Assessment and the Method for Valuation of Soil and Water Conservation Ecological Products(for Trial Implementation),this study developed a comparative framework of"overall value accounting-intervention-specific incremental attribution",and analyzed the value measurement system at four levels:accounting logic,measurement scope,algorithmic tools,and implementation bottlenecks.The results are as follows.(1)The gross value of generalized ecological products reflects the total value of final ecosystem products and services provided and used by ecosystems within a defined spatiotemporal boundary during the accounting period,and can encompass the actual state jointly shaped by natural evolution and human management.By contrast,soil and water conservation ecological product accounting focuses on identifying the increments in products and services generated by comprehensive soil erosion prevention and control,and requires a current-versus-baseline comparison to clarify governance contributions.(2)For transaction and investment evaluation,this paper further distinguished the incremental value of ecosystem services derived from standardized accounting,annual social net benefits,and the financial value of investment entities.It accordingly proposed frameworks for cost identification and allocation and for life-cycle cash-flow analysis.To address the issue of upstream governance benefiting downstream areas,a spatial attribution pathway was proposed:erosion reduction in governance units—sediment transport—deposition reduction at beneficiary nodes—allocation of sediment-reduction contributions.(3)For value realization,a"1+3"pathway was proposed,with government compensation as the foundation,and ecological rights trading,eco-industries and operation-right transfers,and green finance as the three driving mechanisms,while emphasizing functional safety,clearly defined ownership,use restrictions,and benefit reinvestment.Ecological and environmental damage compensation is a remedial liability mechanism applicable after damage has occurred and should not be equated with routine ecological product transactions.This framework clarifies the relationship between overall value and intervention-specific increments,and strengthens the linkage between soil and water conservation ecological product accounting and compensation,transactions,and financing.