Research Article

Interdecadal Changes in the Freeze Depth and Period of Frozen Soil on the Three Rivers Source Region in China from 1960 to 2014

Table 2

The annual trends in freeze depth (cm decade−1) at the 14 meteorological stations of TRSR (Figure 1) for three different time periods. Significance levels: ; .

XinghaiTongdeZekuZaduoYushuGuoluoDariHenanRuoergaiNangqianChangduZhiduoQumalaiMaduoAverage

1960–2014−8.17−5.19−12.24−10.962.85−5.63−1.802.22−0.05−2.44−4.65nonenonenone−3.98
1985–2014−13.44−0.19−10.52−14.77−5.49−16.91−9.34−8.870.81−8.07−14.44−5.99−12.99−2.97−8.93
2000–2014−28.36−4.68−13.82−14.1112.79−25.07−4.18−10.11−0.96−3.14−15.57−13.89−57.04−17.54−13.98