摘要
森林面积的缩小,受到了大自然的惩罚,使人们的头脑清醒起来。重新认识和估价森林(包括天然林)在国民经济中的地位和作用就显得十分重要。森林向人类社会提供木材和各种林产品(树的叶、花、果和浆液等),林中的副特产品(各种有用的植物、药物。
The object of forest ecosystem economics should be the forest lands to which silvicultural practices are applied. The values of unmarketable forest benefits should exclude-what are calculated repeatedly and what are associated with engineering control and biological control.
