[Climate changes in southern Taihang Mountain area from 1980 to 2019].

Southern Taihang Mountain area is an important part of the key ecological regions along the Yellow River in China. Understanding the climate change trend in this area is of significance for the maintenance of ecological security and the planning and decision-making of major ecological projects in the Yellow River Basin. Taking Jiyuan City in southern Taihang Mountain area as the research area, we analyzed the climate change trend in Jiyuan based on the meteorological data from 1980 to 2019.