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首页> 外文会议>Annual Meeting of Risk Analysis Committee of China Association for Disaster Prevention >Response of Vegetation to Extreme Climate Events Change in Typical Steppe in Inner Mongolia
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Response of Vegetation to Extreme Climate Events Change in Typical Steppe in Inner Mongolia

机译：内蒙古典型草原植被与极端气候事件的反应

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In this paper, the extreme climate index was extracted by using the RClimdex model and the Kriging spatial interpolation was applied to the extreme climate index from the 1982-2015 daily temperature and precipitation data of 19 meteorological stations in the typical grassland area of Inner Mongolia. The correlation analysis was performed with the GIMMS NDVI3g vegetation index data. To understand the response of vegetation in typical grassland areas of Inner Mongolia to extreme climate changes. The results show that: In addition to CDD and FD0, all indexes showed an increasing trend before 2000 and a decreasing trend after 2000. The CDD showed a continuous decrease trend, and FD0 decreased first and then increased. There was a significant positive correlation between NDVI and SDII and RX5D in extreme grassland areas in Inner Mongolia and a weak negative correlation with CDD. However, the correlation with the extreme temperature index is not obvious. The area where SU25 is significantly negatively correlated with NDVI is larger, and TNn is obviously weakly negatively correlated. Therefore, it can be seen that extreme precipitation affects the dynamic change of vegetation in typical grassland areas more than extreme temperatures.
机译：本文通过使用RCLIMDEX模型提取了极端气候指数，并将Kriging空间插值应用于1982 - 2015年的典型草地地区1982-2015日常温度和降水数据的极端气候指数。用GIMMS NDVI3G植被指数数据进行相关分析。了解内蒙古典型草地地区植被的响应至极度气候变化。结果表明：除CDD和FD0之外，所有指标还展示了2000年之前的趋势，2000年后的趋势降低。CDD表现出持续减少趋势，首先下降，FD0减少，然后增加。 NDVI与SDII与内蒙古极端草原地区的RX5D之间存在显着正相关，与CDD弱负相关。然而，与极端温度指数的相关性并不明显。 SU25与NDVI显着与NDVI呈较大的区域较大，并且TNN明显呈弱呈负相关。因此，可以看出极端降水影响典型草地区域的植被动态变化，超过极端温度。

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