Based on the data of sunshine, cloud amount, haze, fog, sand dust, from 1954 to 2005, at Dezhou, Shandong Province, the climate tendency is calculated with the least square method.

• 摘要通过分析德州市1954-2005年日照、云量、霾、雾、沙尘等资料，用最小二乘法计算气候倾向率。