Spatial-temporal variations of Koppen climate types in China

Wang, Ting , Zhou, Daowei , Shen, Xiangjin

2021-08-01 null null   32(卷), null(期), (null页)

查看原文

The classification of Koppen climate type has been widely used to identify regional climate change. This study investigated the changes of Koppen climate type over China during 1964 - 2015. On average, the arid climate was located in the north-west, tropical climate, temperate climate, and cold climate were distributed in the east from south to north along the latitude, and polar climate was concentrated on the Tibetan Plateau. Comparing Koppen climate types during 1964 - 1989 and 1990 - 2015, we found that cold climate with dry winter was replaced by a cold steppe climate in Northeast China and North China, warm summer was replaced by cold summer in Northeast China and the Tibetan Plateau, tundra climate was substituted by cold climate in the Tibetan Plateau, and cold climate was replaced by temperate climate in Central China and East China. Our results showed that the arid climate expanded eastward and southward, which may have resulted from a decrease in pre-cipitation. Owing to the increase in temperature, the climate zones moved northward. This study provides valuable insights for government decision-makers in formulating crop planting systems, water resource management, and land use planning.