日本计划将超长债券发售规模削减10%，将增加发售两年期日本公债、一年期和六个月期贴现国库券，各增加6,000亿日元。

Core Viewpoint - Japan plans to reduce the issuance scale of ultra-long bonds by 10%, while increasing the issuance of 2-year Japanese government bonds, 1-year, and 6-month discount treasury bills, each by 600 billion yen [1] Group 1 - Japan's reduction in ultra-long bond issuance indicates a shift in its debt management strategy [1] - The increase in short-term debt instruments suggests a focus on liquidity and immediate financing needs [1] - The specific increase of 600 billion yen in each of the short-term instruments highlights a significant adjustment in the government's funding approach [1]