Investigation on the Relationship Between Temperature Change and Winter Heating in China

According to the national standard on the climate conditions of winter heating (mean daily temperature≤5°), the article calculated the number of days with temperature≤5°, negative accumulated temperature and other necessary parameters. It has been found that between negative accumutated temperature and mean January (or annual) temperature there exists a good linear relation with correlation coefficient as high as 0.99. As a result, two heating zones in China are proposed and the impacts of temperature change on the climate conditions of winter heating in China are studied