Accumulated temperature changes in desert region and surrounding area during 1960–2013: a case study in the Alxa Plateau, Northwest China

摘要: Based on the data of Alxa desert region and 27 meteorological stations recorded by 1960–2013, T ≥ 0 T ≥ 10 °C accumulated temperatures were analyzed using sliding average, linear regression, Mann–Kendall abrupt change test, kriging interpolation methods. The results show that T ≥ 0 °C temperature increased significantly 9.94 °C/a 8.88 °C/a during 1960–2013. increases in eastern study area most obvious, followed those western central regions. Additionally, trends these regions highly consistent with entire area. modestly prior to 1980s, after which time a fairly steady climb began late 1980s. two points 1996 1998, respectively. around 2000. analysis shows higher occurred than surrounding distribution presented varying spatial differentiation. For temperature, an increase at edge Tengger was obvious. exhibited smaller T ≥ 0 °C. In addition, smallest amplitude measured