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林地施肥是调节林分生态系统中矿质营养元素循环和促进林木生长的重要措施之一,特别是轮伐期短的速生用材林,幼林施肥能促进林木生长,使其提早成材。据报道,日本很重视幼林施肥,如对柳杉幼林施肥,可以将40年的轮伐期缩短到35年。在国内,幼林施肥尚处试验研究阶段。为探讨人工幼林施肥技术,给今后大面积开展幼林施肥提供科学依据,我们选择速生的小黑杨人工幼林,进行了定量施肥的
Fertilization on woodlands is one of the important measures to regulate the circulation of mineral nutrients and promote the growth of forest in the stand ecosystem. Especially for the fast-growing timber forest with short rotation period, the fertilization of young forest can promote the growth of forest and make it grow early. It is reported that Japan attaches great importance to young forest fertilization, such as the fertilization of Cryptomeria fortunei, you can shorten the 40-year rotation period to 35 years. In China, young forest fertilization is still at the experimental stage. In order to explore the fertilization technology of artificial young forest and provide a scientific basis for large area young fertilization in the future, we selected fast-growing Populus simonii young artificial forest for quantitative fertilization