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长期以来,人们对林地是否需要和值得施肥的认识并不一致。有人认为,我国目前林业经营集约度低,谈不上施肥,采用其它营林措施就可以了;还有人认为“森林能自肥”,因为林木需要的养分比农作物少,林木生长周期长,采伐带走的干材部分所含的养分量不多,而养分含量较高的枝叶等采伐剩余物以及林地众多的灌木、草本植物和森林凋落物仍留在林地,不象农作物那样,在短期内从单位面积的农地中带走大量的营养元素。另外,因某些原因造成
For a long time, people’s understanding of whether forest land needs fertilization is not consistent. Some people think that in our country, the current forestry management is low in intensity, not to mention fertilization and other measures for forest management. Others think that “forests can be self-fertilizing,” because trees need less nutrients than crops and trees have long growth periods. The portion of dry ingredients that is taken up contains only a small amount of nutrients, while the harvested residues such as foliage and leaves with high nutrient content, as well as shrubs, herbs and forest litter with numerous woodlands, remain in the woodlands, unlike the crops Unit area of the farmland to take a lot of nutrients. In addition, for some reason