Restoration and Location Characteristics of Unrestored Plots of Koi Breeding Ponds after the Mid-Niigata Prefecture Earthquake in 2004

Abstract

The actual conditions of the implementation of the disaster restoration projects in Koi breeding ponds were surveyed, and the location characteristics of the unrestored breeding ponds were analyzed in the M settlement in the Yamakoshi area of the Nagaoka City struck by the Mid-Niigata Prefecture Earthquake in 2004. The findings are as follows: Although the Small-scale Disaster Restoration Project (In Japanese “Tezukuri-tanaoshi-tou-shien” Project) created by the government of Niigata Pref. made a contribution in all of the Koi breeder's classes which were classified by the management scale, a large number of breeding ponds used by the small scale breeders were left unrestored. Moreover, the plots tended to be left unrestored which were smaller, more apart from the road, inclined more sharply, or at higher altitudes. It could be necessary to arrange the facility function and the location of breeding ponds on a normal basis in order to reduce the development of the unrestored ponds.