Study on the innovation of tax system in perspective of circular economy 并列题名:Study on the innovation of tax system in perspective of circular economy Research on ecological reform of tax system from the perspective of low-carbon economy Study on the selection of rice cultivation system from the perspective of farmers' income Study of the development mechanism and policies for circular economy Water pricing and management: from the perspective of circular economy 并列题名:Research on ecological reform of tax system from the perspective of low-carbon economy Research on the finance support system of Chinese circular economy Study on tax policies promoting the development of circulareconomy 并列题名:Study on the selection of rice cultivation system from the perspective of farmers' income