方丹此次拜訪的林場瞭望員于成,，就是這些守林人中普普通通的一個。

他的父親是第一代林場人,。在很多人眼里,，常年與山林為伴的瞭望員是寂寥而艱苦的。

Many would find Yu’s job intolerable, with the trees and mountains being his only companions much of the year. But for him, looking after the forest planted by his father is an act of faith.

于成的工作常人很難忍受,，常年只有山林與他為伴,。但看護(hù)好父親親手種下的這片林子，便是他強大的精神信念,。

世界最大的人造林