松岡達也（清水建設（株））、高木大地（東京大学）、松岡怜（東京大学大学院）、渡部陽介（清水建設（株））、大黒俊哉（東京大学大学院）
B02
人工地盤上緑化では土壌乾燥化に起因する植物の生育不良が懸念され、バイオ炭の土壌混合による保水性改善が解決策の一つである。木炭、竹炭、もみ殻炭、ヤシ殻炭を各々土壌に混合し無潅水下でチガヤの生育評価を行った結果、ヤシ殻炭では他の炭より早く萎れがみられ、バイオ炭の原料により生育状況が異なることが示された。
Soil desiccation in artificial ground greening affects health conditions of plants negatively in some cases. Biochar application to soils is one of the solutions to improve water retention. In this study, biochar made from wood, bamboo, rice husk and coconut shell were added on soils, and evaluated the health conditions of Imperata cylindrica under non-irrigated conditions. The results indicated that health conditions of Imperata cylindrica with soils, coconut shell biochar mixed conditions, were not kept well compared to the cases with other biochar, and thus the health conditions of plants could be altered by raw material of biochar.