| 1. | Key ecological projects undertaken to prevent and control pollution in the basins of the huai river , tai lake and other major rivers and lakes , protect virgin forests , return farmland to forests or grassland , and prevent and control desertification
去年投入国债资金亿元，主要用于淮河太湖等重点流域污染防治和天然林保护退耕还林还草防沙治沙等重点生态工程。 |
