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杉木通过间伐 ,可以改善杉木林的生长环境 ,促进保留下来的林木速生、优质、高产 ;同时 ,还可以提供一定数量的小、中径材和薪柴 ,使生长周期较长的杉木林较早地获得经济效益。杉木林抚育间伐 ,要注意掌握“三适”要点 ,即 :适时、适法、适量。适时 杉木林在一个轮伐期内 ,需
The thinning of Chinese fir can improve the growth environment of Chinese fir plantation and promote the fast-growing, high-quality and high-yielding of preserved trees. Meanwhile, it can also provide a certain number of small, medium-diameter timber and firewood to make Chinese fir plantation with longer growth cycle earlier To obtain economic benefits. Cunninghami fir thinning, pay attention to master “three appropriate” points, namely: timely, appropriate, appropriate amount. Timely fir forest in a rotation period, required