基于遥感监测浅析宿州2008～2009年冬小麦干旱

An Analysis of the Winter Wheat Drought in Suzhou(2008-2009) Based on Remote Sensing Monitoring

为了解宿州2。08—2009年冬季小麦的旱情及范围，本文主要运用遥感监测技术距平植被指数法，对本次干旱影响进行跟踪监测，并结合降水气象资料，分析旱情发展过程及影响范围。结果表明：①遥感技术可以应用于小区域干旱事件的监测；②研究区该次干旱事件具有持续时间长（4个月），波及范围广，干旱程度深，重灾区出现在研究区西部（砀山县与蛹桥区）的特点；③降水量的减少，是引起干旱的主要原因。

In order to understand the demage to winter wheat by drought in Suzhou from 2008 to 2009 and the range of it, the paper mainly utilizes the anomaly vegetation index （AVI） of remote sensing monitoring with precipitation meteorological dates to track and monitor the influence of the drought, then analyzes the drought process and the affected region. The results are as follows. First, the remote sensing technique can be applied to monitoring small-- Second, it indicates 4 features, namely, long duration （4 months）, wide spread, vast impact spatial extent, affected areas in the western t}art nf tho ro=~,,n~ i ＊： n ~ __. area drought. with severely