摘要
论述了距平植被指数监测干旱的原理,介绍了距平植被指数的合成方法。利用距平植被指数进行农作物干旱监测试验分析,确定了干旱等级。并结合降水、温度等气象资料,阐述了农业干旱变化趋势及成因,分析了距平植被指数对温度和降水的响应。
The principle of anomalies of vegetation index monitoring drought was discussed,and the composite method of anomalies of vegetation index was introduced.Anomalies of vegetation index monitoring crops drought were analyzed to determine the level of drought.Combination of the meteorological data,such as precipitation,temperature and so on,the trend and cause of agricultural drought,and response to temperature and precipitation with anomalies of vegetation index were analyzed.
出处
《现代农业科技》
2010年第11期15-16,共2页
Modern Agricultural Science and Technology
关键词
农作物
距平植被指数
干旱监测
应用
crops
vegetation index
drought monitoring
application