小城镇人口规模对用水特性的影响

由于不同人口规模的小城镇对水资源的消耗不同，城镇规模的不同格局会在很大程度上影响用水量的需求，因此研究人口规模对用水特性的影响，对揭示小城镇用水特性有重要作用．为此，根据小城镇镇区人口将小城镇划分为大、中、小3个等级，选择典型小城镇进行实地用水调研，通过统计计算得出典型小城镇用水水平，并通过类比分析，系统地研究了人口规模与用水特性变化之间的关系，并建议小城镇日变化系数宜取1．75-1．95，时变化系数宜取2．0～2、4，人口规模越小的城镇取高值．

Influence of Population Size on Characteristicof Water Demand in Small Towns

Different population size is differentin consumption of water resources,different town scale have effect on water demand to a great extent.So studying on influence of population size on characteristic of water using is important to reveal characteristic of water consumption.This paper makes small town into three grades as large,medium,small-sized,according to township population of small town,chooses typical town to investigate,and receives water demand level of typical town through statisticcalculation.Also,to study the relationship between population size and the change of water consumption by analogism,and suggestthat coefficient of daily variation is from 1.75 to 1.95,while hourly variation is from 2.0 to 2.4,and higher as population size is smaller.