remove dam to rebound ecosystem


美國Elwha River的水覇本來把生物分隔,破壞生態平衡。自2011年起花了幾年時間把它拆掉,成功令原居那裡的生物重新回來!當中鮭魚的再度出現,為河流的動植物帶來豐富物質,有利整個生態鏈。
the Elwha River Dam in Washington State used to block the flow and divid the local ecosystem until it was torn down starting 2011. the removal of the dam has brought back many local wildlife. the return of salmon brings nutrients and food to the fresh water for the other plants and animals, which benefit the whole food chain.

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