Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ishimura Akihiro and Shimizu Yo and Parinaz Rahimzadeh Bajgiran and Omasa Kenji,Estimation of Beech Forest Decline in Tanzawa Mountains using Water Deficit Index (WDI),Eco-Engineering,13470485,The Society of Eco-Engineering,2010,22,4,141-146,https://cir.nii.ac.jp/crid/1390001205190188160,https://doi.org/10.11450/seitaikogaku.22.141