北京平原区的不同自然分区,是在不同因素作用下所形成的自然综合体。为了建立不同自然分区的数学模式,首先要建立各自然因素的程序数列。地下水因素是以潜水位、埋藏深度、涌水量和单降涌水量四个参数建立程序数列的。以朱庄、大皮营两乡为试点,建立程序后,再利用计算机检验其它地区使用效果,经过多次验证调试,最后建立北京平原区自然资源数据库。 The different natural divisions in the Beijing Plain are natural complexes formed under the influence of different factors. In order to establish mathematical models of different natural divisions, we must first establish a sequence of procedures for each of the natural factors. Groundwater factor is based on the diving position, burial depth, water inflow and single down four parameters to establish the program sequence. Taking Zhuzhuang and Dapiying Township as experimental sites, after establishing the program, the computer was used to test the effect of other regions. After several verification and debugging, the database of natural resources in Beijing Plain District was established.