中文摘要：

从历史地理学角度探讨人口与环境承载力问题，是历史环境复原研究的一项主要内容。对民国时期拉卜楞寺僧侣制度及甘南藏区部落人1：2的地理分布研究．不仅可以使我们对当时甘南地区人口与环境关系有种清晰的认识．而且也可以为我们当今西北民族地区开发提供一份历史借鉴。

英文摘要：

This paper discusses the situation and effects of the education expectation of parents to their children, based on the baseline data of ＂Panel Study on the Development of Migrant children＂. The results showed that it is popular in China that high-level education is expected by the parents, which is not related to the economic status. The social-cultural background contributes more to the education expectation, such as the parents＇ education level ,the cognition of the importance of the parents on family education and the degree. The education achievement of child plays important role in the education expectation of his parents. There is different education expectation between father and mother,the migrant children in public school and those in migrant school, while the later is same as the resident children. However, the causal relationship between education choice of the migrant children and the education expectation would be further discussed.