@article{oai:repository.naro.go.jp:00001679,
 author = {福本, 昌人 and FUKUMOTO, Masato and 吉村, 亜希子 and YOSHIMURA, Akiko and 島崎, 昌彦 and SHIMAZAKI, Masahiko},
 journal = {近畿中国四国農業研究センター研究報告, BULLETIN of THE NATIONAL AGRICULTURAL RESEARCH CENTER for WESTERN REGION},
 month = {Mar},
 note = {Based on pond ledger and rainfall data, we analyzed the collapse of 104 irrigation ponds in Kagawa prefecture caused by heavy rainfall from typhoon No.23 in 2004. Our results obtained were as follows : 1 Ponds were less than 1000 m^3 in pondage in 60% of the cases of collapse. The incidence of collapse -- the number of collapsed ponds compared to the total number of ponds -- of ponds with 500 - 1000 m^3 of pondage was greatest. 2 The incidence of collapse calculated every rainfall scale increased rapidly when the greatest hourly rainfall exceeded 100 mm/h, reaching 4.4 - 4.7 %. 3 Discriminant analysis was conducted for ponds located in areas where the greatest hourly rainfall exceeded 80 mm/h. The purpose variable was the presence or absence of collapse. Explanatory variable were (1) upstream bank slope stability, (2) downstream bank slope and bank top stability, (3) the degree of water leakage, (4) intake pipe function performance, (5) spil lway function performance, (6) the ratio of basin area to stored water surface area, and (7) surface layer geology. After studying the influence of each explanatory variable on the purpose variable, we found that the influence of variable (6) was greatest and the influence of variable (7) second greatest. The influence of variable (4) was somewhat large.},
 pages = {167--176},
 title = {2004年の台風23号による香川県内のため池の決壊の実態},
 volume = {6},
 year = {2007},
 yomi = {フクモト, マサト and ヨシムラ, アキコ and シマザキ, マサヒコ}
}