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Climatic variations within the dry valleys in southwestern China and the influences of artificial reservoirs

Author

Listed:
  • Lian Sun

    (Beijing Normal University
    Stockholm University)

  • Yanpeng Cai

    (Beijing Normal University
    Guangdong University of Technology
    University of Regina)

  • Wei Yang

    (Beijing Normal University)

  • Yujun Yi

    (Beijing Normal University)

  • Zhifeng Yang

    (Beijing Normal University)

Abstract

Climatic variation within a typical dry-valley area located in the southern Hengduan Mountains of China is studied, and the potential regional climate influences of large reservoirs in the area are discussed. Six meteorological stations near a reservoir are identified and classified into two categories (dry and non-dry valleys) to compare their level of climate change. Temperatures tended to increase since 1990 with a precipitation shift toward the dry season in both dry and non-dry valleys. Wavelet analysis shows that temperature and precipitation have significant variation with periods of 3.6 and 16.5 years, respectively. The standardized precipitation evapotranspiration index (SPEI) shows that dry valleys have multiple drought trends. Temperature in non-dry valleys changed more than that in dry valleys, but the variations of other indices in the two categories of valleys are not statistically different. The climatic variation of one station is in accordance with the reservoir filling, which is related to the orientation of the reservoir in the prevailing wind direction especially during summer. This study provides a profile of the climate change of dry valleys and documents the influence of large artificial reservoirs on regional climate.

Suggested Citation

  • Lian Sun & Yanpeng Cai & Wei Yang & Yujun Yi & Zhifeng Yang, 2019. "Climatic variations within the dry valleys in southwestern China and the influences of artificial reservoirs," Climatic Change, Springer, vol. 155(1), pages 111-125, July.
    • Handle: RePEc:spr:climat:v:155:y:2019:i:1:d:10.1007_s10584-019-02457-y
    DOI: 10.1007/s10584-019-02457-y
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    References listed on IDEAS

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    1. Zong-Shan Li & Qi-Bin Zhang & Keping Ma, 2012. "Tree-ring reconstruction of summer temperature for A.D. 1475–2003 in the central Hengduan Mountains, Northwestern Yunnan, China," Climatic Change, Springer, vol. 110(1), pages 455-467, January.
    2. Zhou, Jianzhong & Zhang, Yongchuan & Zhang, Rui & Ouyang, Shuo & Wang, Xuemin & Liao, Xiang, 2015. "Integrated optimization of hydroelectric energy in the upper and middle Yangtze River," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 481-512.
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    Cited by:

    1. Chao Yang & Jianrong Fan & Jiali Liu & Fubao Xu & Xiyu Zhang, 2021. "Evaluating the Dominant Controls of Water Erosion in Three Dry Valley Types Using the RUSLE and Geodetector Method," Land, MDPI, vol. 10(12), pages 1-16, November.

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