Ecological Compensation Standard for Rice-fish System Based on Its Greenhouse Gas Emission Reduction Capacity

A rice-fish system(i.e.,aquaculture on rice growing field)could positively contribute to the reduction of the greenhouse gas emission.This study,for the first time,included the emission reduction of the greenhouse gases,such as CH4and N2O,in the scope of low carbon fisheries.This article presents our findings and preliminary analytical results on the current status including:(a)the rice-fish system reduced 1 222 300tons of CO2emissions in 2011;(b)an estimated ecosystem service value of greenhouse gas reduction was 83.329 5million yuan;(c)the provinces in China that had ecosystem services worth more than 10million yuan were Sichuan,Jiangsu and Hubei;(d)an ecological compensation standard for the rice-fish system,based on its potential capacity in reducing the greenhouse gases,was suggested to be 68.99yuan.hm-2.a-1.