林下间作是利用土地生产潜力,促进林木生长的重要措施。近年来,我县随着以意杨为主的速生丰产林的发展,在意杨郁闭前,大面积地实行了林下间作。垸内主要间作黄麻、芝麻、蚕豆、小麦、棉花等农作物,垸外主要间作芦苇等。下面就意杨郁闭前林下间作效益作了一些调查和粗略的分析。 Under-forest work is an important measure to harness the potential of land production and promote forest growth. In recent years, with the development of the fast-growing and high-yield forest dominated by poplar in Yangxian County, a great deal of forest intercropping has taken place before the fall of Yang Yu. The main intercropping jute, sesame, broad beans, wheat, cotton and other crops, intercropping the main intercropping reeds. The following Yang Yushan closed under the forest for some benefit made some surveys and rough analysis.