基于卫星遥感与气象站数据的水稻高温热害监测和评估模型研究——以江苏、安徽为例

发布时间：2019-02-26 14:28

【摘要】：随着全球气候变暖,水稻高温热害的发生愈加频繁。为此,本文在前人研究成果的基础上,开展了水稻高温热害监测和评估模型研究。首先利用卫星遥感数据反演逐日最高气温和平均气温,云覆盖区域则以相应站点气温数据插值后补充,生成"卫星—插值"气温时间序列数据。同时提取水稻种植区域并判别其是否在高温热害的关键期——抽穗开花期。然后基于以上数据,依据水稻高温热害指标展开水稻高温热害监测和评估,对热害进行等级划分与统计。模型可实现任意时间点之前水稻高温热害的快速监测与评估,也可以给出全研究区域水稻全生育期总体的高温热害监测与评估结果。以江苏、安徽两省为例进行2013年夏季水稻高温热害监测和评估模型的应用,该模型达到了较好的使用效果,将有很好的应用前景。
[Abstract]:With the global warming, the occurrence of high temperature and heat damage in rice is more and more frequent. Therefore, based on the previous research results, the monitoring and evaluation models of high temperature heat damage in rice were studied in this paper. The satellite remote sensing data is used to retrieve the daily maximum temperature and the mean temperature, and the cloud cover area is supplemented with the corresponding station temperature data to generate the satellite-interpolation temperature time series data. At the same time, the rice planting area was extracted and whether it was in the key period of high temperature heat injury-heading anthesis. Then based on the above data and according to the index of high temperature heat damage of rice, the monitoring and evaluation of high temperature heat damage of rice was carried out, and the classification and statistics of heat damage were carried out. The model can realize the rapid monitoring and evaluation of high temperature heat damage in rice before any time point, and can also give the overall monitoring and evaluation results of high temperature heat injury in the whole growing period of rice in the whole study area. Taking Jiangsu and Anhui provinces as an example, the model for monitoring and evaluating high temperature heat damage of rice in summer 2013 was applied. The model has a good application effect and will have a good application prospect.
【作者单位】：南京信息工程大学气象灾害预报预警与评估协同创新中心;南京信息工程大学江苏省农业气象重点实验室;南京信息工程大学应用气象学院;
【基金】：公益性行业(气象)科研专项(GYHY201506018) 江苏省重点研发计划(现代农业)项目(BE2015365) 中国气象局预报预测核心业务发展专项(CMAHX20160311)~~
【分类号】：S511;S42

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