论文部分内容阅读
Heilongjiang Province in northeast China has a forest area of more than 100,000 square km and is home to the Da Hinggan Ling and Xiao Hinggan Ling mountains. It is renowned for its rich forest resources and is known as the “lungs of China.” Its forest resources
Heilongjiang Province in northeast China has a forest area of more than 100,000 square km and is home to the Da Hinggan Ling and Xiao Hinggan Ling mountains. It is renowned for its rich forest resources and is known as the “lungs of China. ” Its forest resources