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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (19): 108-114.doi: 10.11924/j.issn.1000-6850.casb18010130

所属专题： 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

基于SPI的大兴安岭林区气候干湿状况时空变化研究

郭昭滨,王萍,李险峰,朱海霞,张志国,赵慧颖,李秀芬   

  1. 黑龙江省林业厅 哈尔滨,中国气象局东北地区生态气象创新开放实验室 S哈尔滨,黑龙江省水利科学研究院设计室 哈尔滨,中国气象局东北地区生态气象创新开放实验室 S哈尔滨,中国气象局东北地区生态气象创新开放实验室 S哈尔滨,中国气象局东北地区生态气象创新开放实验室 S哈尔滨,中国气象局东北地区生态气象创新开放实验室 S哈尔滨
  • 收稿日期:2018-01-23 修回日期:2018-05-22 接受日期:2018-05-25 出版日期:2018-07-11 发布日期:2018-07-11
  • 通讯作者: 李秀芬
  • 基金资助:
    国家自然科学基金项目“大兴安岭高纬度湿地演变特征及其对气候变化的响应研究”(41165005)；中国气象局气候变化专项“气候变化对 中国两大主产区粮食安全影响评估及应对策略”(CCSF201606)；中国气象局气候变化专项“东北平原气候转型及其对玉米生产影响评估”(CCSF201410) 。

Spatio-temporal Variation of Dry-wet Climate Condition in Greater Khingan Mountains Forest Region: Based on Standardized Precipitation Index (SPI)

  • Received:2018-01-23 Revised:2018-05-22 Accepted:2018-05-25 Online:2018-07-11 Published:2018-07-11

摘要： 明确气候变化背景下大兴安岭林区气候干湿状况的变化特征,可为更好的预测森林火灾、保护森林资源提供科学依据。利用黑龙江省大兴安岭林区6个气象站1974—2016年的逐日降水量资料,采用标准化降水指数(SPI),分析了该区域近43年气候干湿状况的变化规律。结果表明：近43a,黑龙江省大兴安岭林区气候总体呈湿润化趋势,但阶段性变化明显,特别是进入21世纪以来,气候干湿波动剧烈。年尺度上,仅呼玛的气候呈不明显的干旱化,其他各站的气候状况均表现为湿润化趋势；季节尺度上,呼玛夏季、塔河秋季的气候表现为不同程度的干旱化趋势,其他各站点各季节的气候均表现为不同程度的湿润趋势。且相关分析结果表明,夏季降水对年气候干湿状况的变化起到决定性的作用,为大兴安岭林区气候湿润化的主要贡献者。

关键词: 黄秋葵果实, 黄秋葵果实, 加工利用, 研究进展

Abstract: Understanding the change characteristics of dry-wet climate condition in Great Xing’an Mountains forest range under the background of climate change, can provide a scientific basis for predicting forest fire and protecting forest resources in this area. Based on the daily precipitation data of 6 meteorological stations in Great Xing’an Mountains forest range from 1974 to 2016, the standardized precipitation index (SPI, Standardized Precipitation Index) was applied to analyze the change characteristics of dry-wet climate in this area. The results showed that the climate in Great Xing’an Mountains forest range showed wetting trends on annual scale and seasonal scale from 1974 to 2016. But the stage changes were obvious, especially since 21st Century, the dry-wet climate fluctuated fiercely. On annual scale, the climate condition in Huma showed drought trend, but in other stations showed wetting trend. On seasonal scale, the summer climate in Huma and the autumn climate in Tahe showed drought trend in different degree, but in other stations showed different degrees wetting trend in each seasons. And the correlation analysis results showed that the precipitation in summer plays a decisive role in the change of annual dry-wet climate conditions, and it is the main contributor to wet trend of the climate in Great Xing’an Mountains forest region.