Finding an optimal selection in diversify combating modes for desertification region

The differential game method effectively reflects the multi-agent, long-term, and dynamic characteristics of combating regional desertification. Considering differences in levels economic development level governance technology between adjacent areas, three desertification-combating modes are proposed for exploratory purposes. models two regions desertification areas constructed as per certain cooperation, ecological subsidy, transfer modes. optimal mode is found by comparing equilibrium results. study demonstrates that when cooperation dominated region with higher lower than threshold $ \phi^{*}_{u_2} \phi^{*}_{1V} $, optimal, does not affect fee. However, subsidy optimal. Meanwhile, dominant further raises level, it can drive non-dominant to increase input level. least efficient compared situation completely independent regions, relatively improve efficiency combating.