Study on gross ecosystem product accounting of farmland ecosystems around typical plateau lakes
The farmland ecosystem is a semi-artificial and semi-natural ecosystem that provides food and other agricultural products for human needs,while the farmland ecosystem around plateau lakes is more unique and typical.This study selects the farmland ecosystems of Chengjiang City and Tonghai County as the research object,where Fuxian Lake and Qilu Lake are located,and a total of six accounting indicators in two categories were selected to calculate the gross ecosystem product of farmland ecosystems in Chengjiang City and Tonghai County.The results showed that the total value of farmland ecosystem ecological products in Chengjiang City and Tonghai County in 2021 was 3.214 billion yuan and 4.206 billion yuan,respectively,and the total value of farmland ecosystem ecological products per unit area in Chengjiang City and Tonghai County in 2021 was 16.77 yuan/m2 and 20.75 yuan/m2.The value of ecological products in farmland ecosystem is mainly reflected in the supply of material products,followed by the value of regulating services,and the value of cultural services is low.The supply value of material products in farmland ecosystem is closely related to the type of crops planted,while the value of farmland ecosystem regulation service is mainly related to the type and location of farmland.