A forest-fire information service system was established throughout the country.

A method of exterminating vermin with the use of trichogramme evanescena has proved effective in the work to protect forests against blights and harmful insects.

And positive measures have been taken one after another to decrease dependence on forests.

The railway transport sector developed an antiseptic technology for sleepers on the basis of home-made sodium fluoride, thus making it possible to extend the serviceable life of wooden structures.

And measures for reducing wood consumption have been worked out in the fields of construction and building materials, coal-mining, chemical and agricultural industries.

Meanwhile, it is gaining momentum in Chosan County, Jagang Province and other parts of the country to develop fuels with high thermal efficiency and replace wood by marsh gas or ultra-anthracite in solving the issue of fuel.