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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (10): 125-133.doi: 10.11924/j.issn.1000-6850.casb16040115

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

1981-2013年湖南省蒸发量的时空变化特征

邓娟,贺新光   

  1. 湖南师范大学资源与环境科学学院,湖南师范大学资源与环境科学学院
  • 收稿日期:2016-04-19 修回日期:2017-02-17 接受日期:2016-08-23 出版日期:2017-04-11 发布日期:2017-04-11
  • 通讯作者: 贺新光
  • 基金资助:
    国家自然科学基金项目“随机非均质多孔介质中水流与溶质运移问题的随机降维多尺度数值方法研究”(41472238)，“湘江流域陆面过程 中稳定水同位素的研究”(41171035)；湖南省“十二五”重点学科地理学；湖南省教育厅资助科研项目“洞庭湖流域月降水量的时空多尺度变化分析及 其预测研究”(14A097)。

Spatio-temporal Change of Evaporation: Hunan, 1981-2013

贺新光   

  • Received:2016-04-19 Revised:2017-02-17 Accepted:2016-08-23 Online:2017-04-11 Published:2017-04-11

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摘要： 为揭示湖南省蒸发量的时空分布特征，基于1981—2013 年的日蒸发量观测值，采用气候倾向率、滑动平均、累积距平、Mann-Kendall 检验和R/S 分析法，对湖南省年、季蒸发量进行了时空变化分析、突变检验及变化趋势预测。结果表明：（1）33 年来湖南省年蒸发量总体呈波动上升趋势，春、秋、冬三季呈现出相似的增减趋势并决定了年蒸发量的变化趋势；（2）湖南省蒸发量主要集中于夏季，年代际变化具有明显的区域性；年、季节平均蒸发量的空间分布呈现由东南向西北递减的格局；（3）M-K突变分析表明，除夏季之外，春、秋、冬三季和年蒸发量整体均呈上升趋势，且突变点出现在2000年的春季和1983年的秋季；（4）年蒸发量整体上呈现较强的正持续性，四季中春季正持续性最为显著。

关键词: 代谢组学, 代谢组学, 乳酸菌, 发酵食品, 核磁共振, 质谱

Abstract: The paper aims to reveal the spatio-temporal distribution characteristics of evaporation in Hunan. Based on daily evaporation data observed from 1981 to 2013, the spatio-temporal change, mutation test and trends of annual and seasonal evaporation were discussed by using the linear regression, moving arithmetic average, cumulative anomaly, Mann-Kendall test and R/S analysis. The results showed that: (1) the annual evaporation presented a fluctuant increasing tendency in the 33 years, the evaporation change trends of spring, autumn and winter were similar and determined the change of the annual evaporation; (2) the evaporation in Hunan mainly concentrated in summer, in terms of the spatial distribution, the change of decadal evaporation had obvious regional characteristics; the annual and seasonal evaporation showed a decreasing tendency from the southeast to the northwest; (3) the results of M-K mutation analysis revealed that: spring, autumn, winter and annual evaporation presented an increasing tendency except summer, the abrupt change of evaporation occurred in spring, 2000 and autumn, 1983, respectively; (4) the results of R/S analysis showed that the annual evaporation presented a strongly positive persistence, and the evaporation in spring was most significant.