| 基于MODIS数据河北省冬小麦长势及干热风灾害的遥感分析研究 |
| |
| 引用本文： | 魏渠成,刘淇淇,石茗化,李敬海,李雪杉.基于MODIS数据河北省冬小麦长势及干热风灾害的遥感分析研究[J].农业工程,2022,12(2):57-62. |
| |
| 作者姓名： | 魏渠成 刘淇淇 石茗化 李敬海 李雪杉 |
| |
| 作者单位： | 廊坊市气象局，河北 廊坊065000 |
| |
| 基金项目： | 廊坊市气象局科学技术研究计划 |
| |
| 摘 要： | 使用MODND1D中国500 m分辨率归一化差值植被指数（NDVI）产品数据，对河北省2018年10月—2019年5月冬小麦各生育期NDVI变化进行分析，并对2019年5月22日冬小麦灌浆期河北省的一次大面积干热风过程进行分析，对比干热风发生前后NDVI变化特征。结果表明，NDVI可以较好地反映冬小麦各生育期长势情况，同时可以反映干热风对冬小麦灌浆期的影响，当干热风发生时NDVI出现明显的下降趋势，且其下降幅度随干热风灾害程度加重而增大。
|
| 关 键 词： | 冬小麦 遥感 生育期 归一化差值植被指数 干热风 |
| 收稿时间： | 2021/8/10 0:00:00 |
| 修稿时间： | 2021/11/4 0:00:00 |
Remote sensing analysis of winter wheat growth and dry hot wind disaster in Hebei Province Based on MODIS data |
| |
| weiqucheng,liuqiqi,shiminghu,lijinghai and lixueshan.Remote sensing analysis of winter wheat growth and dry hot wind disaster in Hebei Province Based on MODIS data[J].Agricultural Engineering,2022,12(2):57-62. |
| |
| Authors: | weiqucheng liuqiqi shiminghu lijinghai and lixueshan |
| |
| Institution: | Langfang Meteorological Bureau，Langfang Hebei 650002，China |
| |
| Abstract: | Using MODND1D China''s 500m resolution NDVI product data, the changes of NDVI index in each growth period of Winter Wheat in Hebei Province from October 2018 to May 2019 were analyzed, and a large-area dry hot wind process in Hebei Province during winter wheat filling period on May 22, 2019 was analyzed to compare the changes of NDVI index before and after dry hot wind. The results showed that NDVI index could better reflect the growth of Winter Wheat in each growth period and the effect of dry hot wind on winter wheat filling period. When dry hot wind occurred, NDVI index showed an obvious downward trend, and its downward range increased with the aggravation of dry hot wind disaster. |
| |
| Keywords: | winter wheat Remote sensing Growth period NDVI index Dry hot air |
|
| 点击此处可从《农业工程》浏览原始摘要信息 |
| 点击此处可从《农业工程》下载免费的PDF全文 |
