近年洪灾频繁，特别今夏以来，许多地方持续连降大雨和暴雨，造成特大洪灾，经济损失惨重。为什么洪灾这么多呢？除了其它因素外，与森林过伐，生态失衡有着密切关系。“山上多栽树，等于修水库，雨多它能吞，天旱它能吐。”森林可使降雨量的５０～８０％渗入土壤，涵养河... In recent years, the floods have been frequent, and in particular since the summer of this year, heavy rainfall and torrential rains continued to occur in many places, resulting in catastrophic floods and heavy economic losses. Why floods so much? Among other things, there is a close relationship with over-exploitation of forests and ecological imbalances. “To grow more trees in the mountains means to repair reservoirs, to rain more, to swallow it, and to drought, so that it can vomit.” The forests allow 50-80% of the rainfall to penetrate into the soil and conserve the river ...