北方森林正在遭到破坏北方森林覆盖了地球表面的１１％，几乎占全世界森林总面积的１／３，围绕北极圈的森林带构成了最大的陆生生态系统，北方森林覆盖着阿拉斯加、加拿大、斯堪的钠维亚和俄罗斯北部的大部分地区，７０％以上的北方森林面积在俄罗斯境内。北方森林主要由... Northern forests are being destroyed Northern forests cover 11% of the Earth’s surface, accounting for almost one-third of the world’s total forest area. The forest belts surrounding the Arctic Circle form the largest terrestrial ecosystem, with northern forests covering Alaska, Canada , Scandinavia and much of northern Russia, more than 70% of the northern forest area is in Russia. North forest mainly by ...