Sichuan province is rich in building stone resources for ballast.

The concept and actuality of circulation economy and "zero emission" were introduced,and the necessity and possibility of achieving the circulation economy and "zero emission" when consuming wood resource were discussed.

The ways of deep-processed of bamboo resources in China;

Present situation of utilization technology for bamboo resources and development countermeasures for bamboo industry;

Suggestions on speedingup the development of bamboo processing machines are presented to make the best use of our bamboo resources.

Japanese laws and regulations,policies,main technique indicators and evaluation system related to recycled use of wood resources were discussed,which would be great beneficial to China s establishment of economical society.

The shortage of domestic wood supply has been serious for a long time due to the poor wood resources of China.

Under this background,some international organizations suspect China's self-supplying ability of timber resources and think that China's future import will bring heavier burden to world resources arbitrarily.

A further discussion on the timber resources,upgrade of enterprises and technological development of the trade is made on the basis of China's paper industry.