Then 3 indexes for quantifying water carrying capacity were introduced, including water quantity index, populationindex and social comprehensive index.
在此基础上，介绍了水资源承载力的三种度量指标，即水量指标、人口指标和社会综合类指标；
2
At the same time, a new complex populationindex is suggested to measure the level of urbanization. So the level of urbanization was 31.12 percent in 1998 in Chongqing.
同时还提出了新的衡量城市化水平的复合人口指标，认为1998年重庆城市化水平应该是31.12 %。
3
The population size was chosen to be 256, because that way it was easy to initialize every individual to a number equal to its index.