Characteristics of climatic variation from the perspective of "the Silk Road Economic Belt"

The variance tendency of climatic and spatial-temporal equilibrium characteristics of major cities along the SREB were systematically described through moving mean method, Kriging interpolation method and B-G based on monthly scale data of global weather stations released by the NCDC since 1951. Some conclusions cloud be drawn: (1) The P showed downward trend in other regions with significant seasonal differences except the E. The annual P was "N" distribution in CA, while showed an "inverted V" and a "positive V" distribution in EA and WA respectively, and the precipitation change was relatively gentle in E. The dominant factors affecting climate were different in different regions. Meanwhile, no mutation point were detected except in E. (2) The T continued to increase and were spatially low in the middle and high at both ends in all regions, the alternation of drying and wetting was obvious in each regions as well as the T was complex and changeable in E. The mutation of was not synchronous in each region. (3)The changes of T were more sensitive and changeable than P, the P in CA was inversely correlated with other regions, however, there was a high positive correlation between T in all regions. The inversely correlation between T and P was the most significant in CA.