论文部分内容阅读
我国是一个多山的国家,山地丘陵面积约占全国总土地面积的2/3,而我国天然林又多分布于山区和丘陵区,那里的自然条件随海拔增高而出现明显的垂直变化,形成与经、纬地带性的相互交织,对森林植被的分布及结构产生着明显的影响,从而构成了我国天然林分布的宏伟格局。然而,历史一路走来,我国天然林却以惊人的速度在减少,目前仅存16亿
China is a mountainous country. The hilly area of the country accounts for about two-thirds of the country’s total land area. Natural forests in our country are mostly distributed in mountainous regions and hilly regions where the natural conditions show a clear vertical change with increasing altitude. Intertwined with the latitude and longitude of the latitude and longitude, it has a significant impact on the distribution and structure of forest vegetation, which constitutes a magnificent pattern of natural forest distribution in China. However, along the way of history, natural forests in our country have been decreasing at an alarming rate, with only 1.6 billion at present.