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我国山区的开发已有2000多年的历史。随着人口增长,开发范围愈广,利用强度日增。有的地区山地的利用已超过环境资源负荷能力和资源更新速度,以至造成“穷—垦—穷” 的恶性循环。这种情势,既限制着山区经济的发展,又造成水土流失灾害,带来一系列全局性的生态问题。 为恢复和建立稳定的山地生态结构,人们寄希望于生产方针从“以粮为纲”转变为“以林为主”。但是,在“使山区人民尽快富起来”的新形势下,一些地方提出了“治山要以
The development of mountainous areas in our country has more than 2,000 years of history. With population growth, the more extensive the development, the greater the intensity of utilization. In some areas, the utilization of mountainous areas has exceeded the capacity of environmental resources and resource renewal, resulting in a vicious circle of “poor-cultivated-poor”. This situation not only limits the development of mountain economy, but also causes soil and water loss disasters and brings about a series of overall ecological problems. In order to restore and establish a stable mountain ecological structure, people hope that the production approach will change from “taking grain as the key link” to “taking Lin as the mainstay.” However, under the new situation of “making the people of the mountainous areas rich as soon as possible,” some places have proposed "