西北地区的发展是一个涉及人口、经济、社会、资源、环境的综合性问题。这个地区大部分土地干旱荒漠，人口稀少，生产力水平低下。然而也有少部分土地是平原绿洲，有较多的降水，承载着稠密的人口，生产力水平相对较高。因此，西北地区的经济发展问题，既涉及落后地区的开发建? The development of the northwest region is a comprehensive issue involving population, economy, society, resources and environment. Most of the land in this area is arid, sparsely populated and the productivity is low. However, a small part of the land is plain oasis, with more precipitation, carrying a dense population and relatively higher productivity. Therefore, the economic development in the northwest region involves the development and construction of backward areas.