Abstract
The great portion of food consumed in our country depends from overseas on import, and the dependence to our country agricultural production is falling relatively. In major industrialized countries, it is the minimum level. The food self-sufficiency rate in every country in the world, and the self-sufficiency rate of our country were examined using the index of Virtual water. In order to preserve the environmental function which a paddy field has, agricultural management needs to improve health. On the other hand, the measurement to an agricultural worker's labor shortage and aging are required. 6, 040, 000 people are employed to the construction industry of our country now, and 9.6% of all workers are formed. However, 520, 000 people cannot but move to other industries with reduction in public investment. The possibility to the welfare field, environment and the recycling field, and the agricultural field was examined from the system side and the employment side as an object of diversification of the construction industry which is holding many population which cannot but move to other industries.
