Discover and read the best of Twitter Threads about #森林
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1/Today is #MountainDay so I thought I’d write a little bit about the current state of the mountains (and covering forests) in Japan. This applies to most of Japan but my first hand experience is based around Kansai, Hyogo, Nagano & Okayama
#山の日 ＃森林 ＃環境問題 #Forestry
#山の日 ＃森林 ＃環境問題 #Forestry
2/About 40% of forest in Japan is plantations of cedar & cypress planted after WW2. To meet the post-war demand the govt. also opened up to importing cheap lumber. Not only did this deforest part of SE Asia & it also undercut domestic industry, making it unviable.
3/This means there are huge tracts of forests not being maintained. These trees have shallow roots and in heavy rain or typhoons the soil erodes easily causing landslides. We saw this in Iwate last year and in Kyoto in 2013 asahi.com/articles/photo… 
