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应用陆地卫星 TM资料和遥感图像处理 ENVI3.2软件 ,以监督分类波谱角法、人机交互等方法提取冬小麦面积及分布信息。采用图像复合分类监测、比值 (差值 )图像监测、分类结果叠加监测和信息复合人机交互目视提取等方法研究了垦利县 1987～ 1998年冬小麦播种面积及其空间分布的动态变化。结果显示 ,垦利县冬小麦播种面积呈不断增加的趋势 ,11年间共增加了 112 64.5 hm2 ,其中从 1992～ 1996年增加幅度较大。麦田面积的增加主要在垦利县中部和靠近黄河口的两侧地区 ,其减少则主要分布于西南和东北两个原小麦集中分布区。研究结果为该县冬小麦生产的管理及决策提供了科学依据
Application of Landsat TM data and remote sensing image processing ENVI3.2 software to monitor the classification of the spectral angle method, human-computer interaction and other methods to extract winter wheat area and distribution information. Dynamic changes of sown area and its spatial distribution of winter wheat in 1987 ~ 1998 in Kenli County were studied by means of image composite classification monitoring, ratio (difference) image monitoring, classification result superposition monitoring and information composite human-computer interaction visual extraction. The results showed that the sown area of winter wheat in Kenli tended to increase continuously, increasing by 112 64.5 hm2 in 11 years, of which the increase ranged from 1992 to 1996. The increase of wheat field mainly occurred in the middle part of Kenli County and the two sides close to the mouth of the Yellow River. The decrease was mainly distributed in the two primary wheat distribution areas in the southwest and northeast. The results provide a scientific basis for the management and decision-making of winter wheat production in this county