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›› 2018, Vol. 35 ›› Issue (3): 370-381.DOI: 10.7523/j.issn.2095-6134.2018.03.012

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Variations in temperature and precipitation and their influences on surface water resource in different climate zones of Xinjiang

LI Jiaxiu1,2,3, CHEN Yaning1, LIU Zhihui2   

  1. 1 State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
    2 College of Resource and Environment Science, Xinjiang University, Urumqi 830046, China;
    3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-03-06 Revised:2017-05-22 Online:2018-05-15

Abstract: In this paper we use Mann-Kendall test method, canonical correlation analysis, and stepwise regression analysis methods to study temperature and precipitation variations in different climate zones of Xinjiang and study influence factors on surface water resource. The results are shown as follows. 1)Temperature and precipitation increase at the rates of 0.32℃/10a and 8mm/10a, respectively. Temperature increase is more significant and it is mainly contributed by the lowest-temperature increase. 2)Temperature rises faster after 1987 than before, while precipitation shows a weak downward trend before 1987 and a weak upward trend after 1987. 3)The increase rates of both temperature and precipitation gradually decrease from north to south, and the northern Xinjiang becomes more warm and wet. 4)The surface water resources of the southern slop of Altai Mountains and the northern slop of Tianshan Mountains are mainly dominated by the hydrological years precipitation change, while the resources of the southern slop of Tianshan Mountains and the northern slop of Kunlun Mountains are mainly dominated by the temperature change during the period from May to September.

Key words: Xinjiang, different climate zones, surface water resource, canonical correlation analysis

CLC Number: