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Tree planting as a school project
Here in Changwu, Shaanxi, a group of school children came to help out with pit digging along a steep slope. They helped by tamping down the edges of the newly dug pits. The slope was totally devoid of trees.
In Yongshou, Shaanxi, these 14-year olds are planting pine seedlings in pits already dug. They brought the seedlings.
Picture source: George Leung (1999)