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森林和森林资源在国民经济建设和改善生态环境中起着其他资源无法替代的作用。森林覆被率的大小,以及森林质量的好坏,已成为衡量一个国家或地区经济发展水平和环境建设成就的重要标志。我国是森林资源贫乏的国家,森林面积18.3亿亩,覆被率仅占国土面积的12.7％,按人均数量,仅为世界人均数量的1/6,森林总储积量93.85亿m~3,仅为世界人均占有量的1/8。我国温带、暖温带干旱(包括半干旱)地区面积占全国陆地面积的41％,而森林覆
Forests and forest resources play an irreplaceable role in other aspects of national economy construction and ecological improvement. The size of forest cover and the quality of forest have become an important indicator to measure the level of economic development and environmental construction achievements of a country or region. Our country is a forest resource-poor country with a forest area of 1.83 billion mu and a coverage rate of 12.7% of the total land area, accounting for only 1/6 of the world average per capita and total forest reserves of 9.385 billion m 3. 1/8 of the world’s average per capita. China’s temperate, warm temperate arid (including semi-arid) area accounts for 41% of the country’s land area, while the forest cover