Abstract
Forest carbon sinks in Russia are an integral part of the national “Low-carbon development strategy”. However, the influence of natural disasters and various land use policies in economic regions (ERs) raises the issue of forest carbon sink efficiency (FCSE). This study adopted a DEA-SBM model that considers undesirable outputs to measure FCSE, and the Malmquist index (MI) approach to analyze total factor productivity (TFP) of forest carbon sinks, using panel data from 2009 to 2021. The results show that the average FCSE was 0.788, with an improvement rate of 21.2%. Scale efficiency is the main factor constraining FCSE in Russia. In twelve ERs, forest carbon sinks are efficient only in the Kaliningrad and West Siberian ERs. In general, forest carbon sinks in Russia are inefficient mainly due to forest fires and other natural disturbances (82.33%); excessive logging activities (38.64%); and lack of carbon absorption capacity (31.70%). The average score of their TFP is 0.970, indicating a decline of 3% over the study period. This is primarily attributed to the decline of 1.6% in technological change. The productivity of forest carbon sinks remained static only in the Kaliningrad ER, while other economic regions performed deterioration trends. Therefore, Russia should enhance the efficiency of forest carbon sinks.
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