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首页> 外文期刊>Advances in Meteorology >Assessing the Impacts of the 2009/2010 Drought on Vegetation Indices, Normalized Difference Water Index, and Land Surface Temperature in Southwestern China
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Assessing the Impacts of the 2009/2010 Drought on Vegetation Indices, Normalized Difference Water Index, and Land Surface Temperature in Southwestern China

机译：评估2009/2010干旱对中国西南部植被指数，归一化差水指数和陆地表面温度的影响

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摘要

Droughts are projected to increase in severity and frequency on both regional and global scales. Despite the increasing occurrence and intensity of the 2009/2010 drought in southwestern China, the impacts of drought on vegetation in this region remain unclear. We examined the impacts of the 2009/2010 drought in southwestern China on vegetation by calculating the standardized anomalies of Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Normalized Difference Water Index (NDWI), and Land Surface Temperature (LST).Thestandardized anomalies ofNDVI, EVI, andNDWI exhibited positively skewed frequency distributions,while the standardized anomalies of LSTexhibited a negatively skewed frequency distribution.These results implied that theNDVI, EVI, andNDWI declined,while LST increased in the 2009/2010 drought-stricken vegetated areas during the drought period. The responses of vegetation to the 2009/2010 drought differed substantially among biomes. Savannas, croplands, and mixed forests were more vulnerable to the 2009/2010 drought than deciduous forest and grasslands, while evergreen forest was resistant to the 2009/2010 drought in southwestern China. We concluded that the 2009/2010 drought had negative impacts on vegetation in southwestern China. The resulting assessment on the impacts of drought assists in evaluating and mitigating its adverse effects in southwestern China.
机译：预计干旱将增加区域和全球尺度的严重程度和频率。尽管中国西南部2009/2010干旱的发生越来越大，但干旱对该地区植被的影响仍不明确。通过计算归一化差异植被指数（NDVI）的标准化异常，增强植被指数（EVI），归一化差异水指数（NDWI）和陆地表面温度（LST ）.TheLtondvi，EVI，Andndwi的破坏性异常表现出正面的频率分布，而Lstexbited的标准化异常具有负面偏斜的频率分布。这一结果暗示了2009/2010干旱植物的Thendvi，Andwi衰退干旱期间的区域。生物群体中植被到2009/2010的植物的反应不同。大草原，农田和混合森林更容易受到2009/2010的恐慌林和草原，而常绿森林对中国西南部的2009/2010干旱抵抗。我们得出结论，2009/2010干旱对中国西南部的植被产生负面影响。导致干旱影响评估评估和减轻其在中国西南部不利影响的影响。

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  • 来源
    《Advances in Meteorology》 |2017年第1期|共9页
  • 作者

    Xiaoqiang Zhang; Yasushi Yamaguchi; Fei Li; Bin He; Yaning Chen;

  • 作者单位

    Department of Earth and Environmental Sciences Graduate School of Environmental Studies Nagoya University D2-1(510) Furo-cho Chikusa-ku Nagoya 464-8601 Japan;

    Department of Earth and Environmental Sciences Graduate School of Environmental Studies Nagoya University D2-1(510) Furo-cho Chikusa-ku Nagoya 464-8601 Japan;

    Key Laboratory ofWatershed Geographic Sciences Nanjing Institute of Geography and Limnology Chinese Academy of Sciences 73 East Beijing Road Nanjing 210008 China;

    Key Laboratory ofWatershed Geographic Sciences Nanjing Institute of Geography and Limnology Chinese Academy of Sciences 73 East Beijing Road Nanjing 210008 China;

    State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences No. 818 South Beijing Road Urumqi Xinjiang 830011 China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 大气科学（气象学）;
  • 关键词

    Assessing; Vegetation Indices; Normalized Difference Water Index;

    机译：评估;植被指数;归一化差异水指数;

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