抄録
In some skiing areas, the use of ammonium sulfate especially for preparing the snow for ski racing is popular. Although many people are afraid of its effect on natural environment, until now few have beenresearched about this problem because only the people who are concerned with skiing know the fact.
We, therefore, studied the actual situation of using ammonium sulfate in skiing areas. The main foundingswere as follows.
1. The reason for using chemicals in skiing areas are mainly
1.1 to prevent the melting of snow or to prepare the snow for racing,
1.2 to melt the ice on the road,
1.3 to make artificial snow,
1.4 to accelerate the growth of plants during the summer.
2. For the same purpose, the use of ammonium sulfates become common after the 1970's instead of salt.The reason were salt damaged the vegetation on skiing areas and ammonium sulfates hardens the snow at a verylow cost.
3. The amount of ammonium sulfate used in skiing areas is more than the amount of fertilizer nitrogen used insome agricultural land where water pollution has been observed.
4. Ammonium sulfate which is used especially for preparing the snow for racing, affects the vegetation inskiing areas.
The result suggest that the amount of ammonium sulfate used in skiing areas should be reduced and researchshould be continued to find an alternative way which is more safe to the environment.
