returning land to forests

• 退耕还林（草）

returning land to forests的用法和样例：

例句

1. Laws and regulations on returning farmland to forests should be formulated without delay.
   要抓紧研究制定退耕还林的法规。
2. Good results were achieved in projects for reforesting formerly cultivated land and protecting natural forests.
   退耕还林和天然林保护工程建设取得成效。