县域冬小麦种植面积提取及冻害遥感监测
Monitoring planting area and freeze injury of winter wheat in county region
随着近年来气候状况的变化，冻害发生的频率显著提高，尤其是倒春寒，对冬小麦的生长造成了极大的影响。本文通过构建决策树模型提取不同灌溉类型冬小麦种植面积，并在此基础上分析了水旱地冬小麦冻害发生及冻害严重程度。结果表明：冬小麦遥感监测面积为47425.7 ha，提取精度达到了89.1%。冬小麦冻害遥感监测面积为19537.1 ha，占总面积的41.2 %，未受冻害的面积为27888.6 ha，占58.8 %。水地冬小麦受冻严重程度和比例均远高于旱地。
With the change of climate in recent years, the freeze injury frequency increased significantly, especially the late spring cold, it caused great impact to winter wheat growth. In this paper, the different irrigation types winter wheat planting area was extracted by constructing the decision tree model, and freeze injury and severity of irrigated and dry-land winter wheat were analyzed. The results showed that monitoring area of was 47425.7 ha, and the extraction precision was up to 89.1%. The winter wheat freeze injury area of remote sensing monitoring was 19537.1 ha, accounting for 41.2% of the total area. And normal area is 27888.6 ha, accounting for 58.8%. Freeze injury severity and proportion of irrigated winter wheat were much higher than dry-land.
宋晓彦、王超、冯美臣、张美俊、杨武德、肖璐洁
农作物农业科学技术发展农艺学
种植面积水地旱地冻害监测
planting areairrigateddry-landfreeze injurymonitoring
宋晓彦,王超,冯美臣,张美俊,杨武德,肖璐洁.县域冬小麦种植面积提取及冻害遥感监测[EB/OL].(2015-02-02)[2025-08-03].http://www.paper.edu.cn/releasepaper/content/201502-6.点此复制
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