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中国沙漠 ›› 2021, Vol. 41 ›› Issue (6): 41-53.DOI: 10.7522/j.issn.1000-694X.2021.00069

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塔克拉玛干沙漠南缘典型绿洲ET0模型适用性评价及修正

王大刚1,2(), 于洋1,2(), 孙凌霄1,2, 何婧1,2, Ireneusz Malik1,3, Malgorzata Wistuba1,3, 姜逢清1,2, 于瑞德1,2   

  1. 1.中国科学院新疆生态与地理研究所 荒漠与绿洲生态国家重点实验室,新疆 乌鲁木齐 830011
    2.中国科学院大学,北京 100049
    3.西里西亚大学 环境学院,波兰 卡托维兹 40866
  • 收稿日期:2021-03-17 修回日期:2021-05-18 出版日期:2021-11-20 发布日期:2021-12-17
  • 通讯作者: 于洋
  • 作者简介:于洋(E-mail: yuyang@ms.xjb.ac.cn
    王大刚(1993—),男,甘肃古浪人,硕士研究生,研究方向为干旱区水资源。E-mail: wangdagang19@mails.ucas.ac.cn
  • 基金资助:
    中国科学院“西部青年学者”B类项目(2018-XBQNXZ-B-017);新疆维吾尔自治区高层次人才引进工程(Y942171)

Adaptability evaluation and modification of ET0 models in a typical oases on southern margin of the Taklimakan Desert

Dagang Wang1,2(), Yang Yu1,2(), Lingxiao Sun1,2, Jing He1,2, Malik Ireneusz1,3, Wistuba Malgorzata1,3, Fengqing Jiang1,2, Ruide Yu1,2   

  1. 1.State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Department of Reconstructing Environmental Change,University of Silesia,Katowice 40866,Poland
  • Received:2021-03-17 Revised:2021-05-18 Online:2021-11-20 Published:2021-12-17
  • Contact: Yang Yu

摘要:

ET0模型在不同地区具有不同的适用性,而对极端干旱的塔克拉玛干沙漠南缘绿洲的ET0模型的适用性研究较为稀缺。利用2006—2014年生长季(4—10月)策勒气象站逐日气象资料,以自动称重式蒸渗仪实测数据为标准,采用最大绝对误差(MAE)、均方根误差(RMSE)、模型效率(EF)和一致性指数(d)4个指标,在日、月时间尺度上评价了6种常用ET0模型在策勒绿洲的适用性,并使用回归修正法和比例修正法分别修正了这6种模型。结果表明:(1)日、月时间尺度上,Hargreaves-Samani(H-S)模型高估程度较大,其余模型均不同程度低估,拟合度由高到低依次为FAO-56PM、Jensen-Haise(J-H)、Priestley-Taylor(P-T)、Makkink、Turc、H-S。(2)所有ET0模型月值变化趋势与蒸渗仪实测值基本一致,除FAO-56PM和Turc模型计算的ET0月值在6月达到峰值外,其余模型均在7月达到峰值,在生长季尺度所有模型ET0月值与蒸渗仪实测值呈显著相关。(3)日、月时间尺度上,回归修正法和比例修正法修正后的ET0模型计算结果与蒸渗仪实测值均呈极显著相关,回归修正法优于比例修正法。(4)相关性分析表明,对策勒绿洲ET0影响由高到低的气象因子依次为Tmean>Tmin>P>Tmax>Rs>U2>RHmean

关键词: 塔克拉玛干沙漠南缘, 策勒绿洲, 参考作物蒸散发量, 适用性评价, 模型修正

Abstract:

ET0 model has different applicability in different regions, and the applicability of ET0 model in the extremely arid oasis in the southern margin of the Taklimakan Desert is relatively scarce. Based on the daily meteorological data of Qira meteorological station during the growing season (April-October) from 2006 to 2014, and the measured data of automatic weighing lysimeter as the standard, the applicability of each model in Qira oasis was evaluated 6 kinds of commonly used ET0 models on the daily and monthly time scales by using the four indexes of maximum absolute error (MAE), root mean square error (RMSE), model efficiency (EF) and consistency index (d) ,and using regression correction method and proportional correction method calibrated ET0 methods respectively. The results showed that: (1) Hargreaves-Samani (H-S) was overestimated to a large extent on the daily and monthly time scales, while other models were underestimated to varying degrees. The fitting degree from high to low was FAO-56PM, Jensen-Haise, Priestley-Taylor, Makkink, Turc and H-S. (2) The monthly value variation trend of all ET0 models was basically consistent with the lysimeter measured values. Except for the monthly value of ET0 calculated by FAO-56PM and TURC models, which reached the peak value in June, the other models all reached the peak value in July. At the scale of growing season, the monthly value of ET0 of all models was significantly correlated with the lysimeter measured values. (3) On the daily and monthly time scales, the calculated results of ET0 model modified by the regression correction method and the proportional correction method were significantly correlated with the measured values of the lysimeter, and the regression correction method was superior to the proportional correction method. (4) Correlation analysis showed that the main meteorological factors affecting ET0 in Qira oasis from high to low were : Tmean>Tmin>P>Tmax>RS>U2>RHmean.

Key words: southern margin of the Taklimakan Desert, Qira oasis, reference crop evapotranspiration, adaptation evaluation, model modification

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