On Marx's Proposition of "All Productive Forces Boil Down to Natural Forces"

Natural forces doesn't take hold in traditional theories on productive forces,which has brought about problems in study of productive theory and current development.In fact,however,in a lot of works by Marx,a lot of space is devoted to expounding the relationship between natural forces and productive forces in an all-round way and explicitly advances the scientific proposition that all productive forces boil down to natural forces.Such a scientific proposition raised by Marx,whether theorietically or practically,is of much significance to deepening the study of productive theory,moving forward the current pevelopment of productive forces,and in the background that the problems of resourses and environment are getting grimmer currently,understanding a new the social effect of geographical environment,adhering to the view of scientific development,following the way of sustainable development,and promoting the harmonious development between mankind and nature.