建国40年来,我区先后修建了各类水利工程32万多处,有效灌溉面积1978年曾达到2400多万亩,随着国民经济的蓬勃发展,水资源综合开发利用的日益充分,水的经济价值正为社会各界所关注。森林不仅可以美化城乡,净化大气,防治污染,保护生态环境,而且能够调节 In the 40 years since the founding of the People’s Republic, a total of more than 320,000 water conservancy projects have been constructed in our region. The effective irrigation area reached more than 24 million mu in 1978. With the vigorous development of the national economy, the comprehensive utilization of water resources has become increasingly widespread. Value is the concern of all sectors of society. The forest can not only beautify the urban and rural areas, purify the atmosphere, prevent pollution, protect the ecological environment, but also can adjust