Originally a larch forest, for ginseng species, the entire woodland was returned by excavators after cutting down, removing tree roots, stones and debris, which cost almost 300,000.After taking part, 10,000 red pine seedlings were planted.Red pine cannot grow in ten years, and there is little impact on growing a variety of crops.After 10 years, it becomes a red pine forest, and can also be replanted with other economic tree species.