The paper has summarized the studies on relationship between forest degradation and air pollution in developed countries such as Germany,USA and Finland.The studied fields focus on the theories of forest degradation a...The paper has summarized the studies on relationship between forest degradation and air pollution in developed countries such as Germany,USA and Finland.The studied fields focus on the theories of forest degradation and semiotic diagnsis.It points out that China should strengthen the study on this side facing the heavy task of forest-planting and protection and construction of ecology.展开更多
文摘The paper has summarized the studies on relationship between forest degradation and air pollution in developed countries such as Germany,USA and Finland.The studied fields focus on the theories of forest degradation and semiotic diagnsis.It points out that China should strengthen the study on this side facing the heavy task of forest-planting and protection and construction of ecology.
