During the last 50 years,the temperature of Hexi corridor was lower from the 1960s to the 1980s, and climate has been becaming warmer since the 1990s by the rise of temperature in winter. While the precipitation experienced a process of being lower (the 1960s), higher (the 1970s), lower (the 1980s), higher (after the 1990s), and the rise of precipitation in autumn has became obvious since 2000. What’s more, the abrupt change of temperature was more obvious than precipitation under the background of global warming. The abrupt change of temperature rise in spring, summer and autumn happened in the late 1990s, and the abrupt change of temperature rise in winter happened in the middle of the 1980s in the Hexi corridor. As result, The abrupt change of annual temperature ascending happened in the middle of the 1980s and in the late 1990s. Spatial difference of precipitation break was obvious. The abrupt change of precipitation rise happened in the late 1960s in the eastern and western Hexi corridor.
JIA Wen-Xiong, HE Yuan-Qing, LI Zong-Xing, PANG Hong-Xi, YUAN Ling-Ling, NING Bao-Ying, SONG Bo, ZHANG Ning-Ning
. Regional Characteristics of Climatic Change Trend and Break During Last 50 Years in Hexi Corridor[J]. SCIENTIA GEOGRAPHICA SINICA, 2008
, 28(4)
: 525
-531
.
DOI: 10.13249/j.cnki.sgs.2008.04.525
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