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西部高山林区是我省木材生产重要基地之一。30多年来,为国家建设提供大量木材。但过去由于经济政策上失误,自然资源越采越少,引起自然生态环境日趋恶化,造成这种状况有以下几种原因。 1.没有很好地重视营林,集中过伐。 2.除了森工企业集中过伐外,地方企业和群众都在砍伐木材。 由于集中过伐,西部高山森林线明显下降,草甸灌丛下降,水源涵养功能减弱,主要河流流量不稳,著名的都江堰在扩大灌区时,也受到水源不足的限制。加速西部高山森林恢复,
Western high mountain forest is one of the important bases of timber production in our province. For more than 30 years, large quantities of timber have been supplied for the construction of the country. However, due to the mistakes in economic and policy in the past, the more and more natural resources were scarce, causing the natural ecological environment to worsen day by day. There are several reasons for this situation. 1. Do not pay good attention to the forest, overcall. 2. Except for the concentration of forestry enterprises, local enterprises and the masses are cutting down timber. Owing to the concentration of over-cutting, the forest belt in the western mountain obviously decreased, the meadow shrub dropped, the water conservation function weakened, and the main river flow instability. The well-known Dujiangyan was also limited by inadequate water resources when it expanded irrigation areas. Speeding up the restoration of western mountain forests,