And lack of human commitment to Satoyama caused not only changes in vegetation (shift into a forest of climax community (community of plants which has reached a steady state) or shift into a bamboo forest by the invasion of Moso-chiku (Phyllostachys edulis)), but also contaminated it through illegal dumping of trash and industrial waste.
人間の関与が失われたことによる植生の変化（極相林化や孟宗竹の侵入による竹林化）、不法投棄される粗大ゴミや産業廃棄物による汚染にさらされている。