干旱区研究

Arid Zone Research >

2022 , Vol. 39 >Issue 5: 1437 - 1448

DOI: https://doi.org/10.13866/j.azr.2022.05.09

Applied Climate

Construction of climate warming and humidification evaluation index and its application in Qinghai Province

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  • 1. Hubei Key Laboratory of Petroleum Geochemistry and Environment, Yangtze University, Wuhan 430000, Hubei, China
    2. Resource And Environmental Engineering College of Yangtze University, Wuhan 430000, Hubei, China
    3. Huanghe Hy-Dropower Devel Opement Co. Ltd, Xining 810000, Qinghai, China
    4. China Yangtze Power Co. Ltd, Yichang 443000, Hubei, China

Received date: 2022-03-30

  Revised date: 2022-06-09

  Online published: 2022-10-25

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Abstract

Different methods have different research results on the duration and variation of this phenomenon, causing dissidence. In this paper, the evaluation index of climate warming and humidification was constructed by combining meteorological factors and drought and vegetation indexes. The surface moisture index (Hi), self-checking Palmer drought index (sc_PDSI), and annual NDVI were used to construct the evaluation index of the warming and humidification grade based on the method of data normalization. This kind of index was used to comprehensively evaluate the spatial and temporal distribution of climate warming and humidity in Qinghai Province over the past 60 years to verify the applicability of the index in different time series lengths and cover different factors. The evaluation results show the following: (1) the overall climate of Qinghai Province over the past 60 years is in the stage of obvious indigenous warming and micro-humidifying. The affected regions are concentrated in parts of the Qilian Mountains in the southeast, southern to the southeast of the Yellow River Basin and Lancang River Basin. (2) Climate change has not changed the distribution pattern of climate warming and water resources in Qinghai Province over the past 60 years. (3) This kind of index has positive applicability for regional long-time scale warming and humidifying evaluation and can objectively and timely reflect the warming and humidifying situation of the evaluation area.

Key words： Qinghai Province; climate warming and humidification trend; index evaluation

Cite this article

WANG Yonghui,YE Xiaojuan,PAN Hongzhong,BAI Yu,DONG Defu,YAO Huaming . Construction of climate warming and humidification evaluation index and its application in Qinghai Province[J]. Arid Zone Research, 2022 , 39(5) : 1437 -1448 . DOI: 10.13866/j.azr.2022.05.09

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