Welcome to Journal of University of Chinese Academy of Sciences,Today is

Journal of University of Chinese Academy of Sciences ›› 2021, Vol. 38 ›› Issue (1): 103-113.DOI: 10.7523/j.issn.2095-6134.2021.01.013

• Research Articles • Previous Articles     Next Articles

Temperature and precipitation characteristics and spatial stratified heterogeneity in Badain Jaran Desert

NING Wenxiao1,2, LIU Xuyang1,2, WANG Zhenting1   

  1. 1. Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-05-27 Revised:2019-09-05 Online:2021-01-15

Abstract: In this study, the basic characteristics of climate change of Badain Jaran Desert within nearly 60 a is analyzed using linear trend analysis, Mann-Kendall test, cross wavelet, wavelet coherence, and geo-detector methods, based on the temperature and precipitation data from 2016-2018 by an automatic weather station at the center and data from 1960-2018 by 4 weather stations at the margin of the desert. The results show that the annual average temperature of the Badain Jaran Desert increased at a rate of 0.34 ℃/10 a, but increasing trend of annual precipitation was not obvious. Annual precipitation abruptly changed for several times, while annual average temperature showed abrupt change only once in 1990. The mean monthly temperature in the center of the desert was highly similar to that of the marginal areas, while the monthly change trend of precipitation was quite different. The overall relationship between precipitation and temperature was nonlinear at multiple time scales. Precipitation was characterized by spatially stratified heterogeneity, while temperature did not show such character.

Key words: Badain Jaran Desert, temperature, precipitation, climate change, spatial stratified heterogeneity

CLC Number: