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随着空间技术和地学研究的发展,遥感(即遥远感知)技术在资源调查中的应用日益广泛。陆地卫星象片资料新,在资源概查中收效快;大比例尺航片已成为资源详查的极好依据。目前农业遥感正在普及,在地貌、土壤、土地利用、森林草场、作物估产等调查工作中取得了不少成果。我们所用的彩红外航片就是遥感资料之一,在盐碱地探测中收效很好,短期内就为山东省禹城县做出1∶5万盐碱地分布图。一、用彩红外航片探测盐碱地的基本过程1、区域资料准备和分级标准:该县位于鲁西北黄河冲积平原、暖温带半干旱大陆季风气候区,面积990平方公里,气候特点:春旱多风、夏热易涝、晚秋又旱、冬季干冷。平原上
With the development of space technology and geosciences, the application of remote sensing (ie, remote sensing) technology in resource surveys is increasingly widespread. Land satellite imagery data new, effective in resource overview; large-scale aerial photos has become an excellent basis for detailed investigation of resources. At present, agricultural remote sensing is gaining popularity and many achievements have been made in surveying such as landform, soil, land use, forest pasture and crop yield estimation. We use the color infrared video is one of the remote sensing data, effective in the detection of saline-alkali in the short term Yucheng County, Shandong Province to make 1: 50000 saline distribution map. First, the basic process of using color infrared video exploration of saline and alkali land 1, the regional data preparation and grading standards: The county is located in the Yellow River alluvial plain in the northwest of Shandong, warm temperate semi-arid continental monsoon climate area, an area of 990 square kilometers, climate characteristics: , Hot summer floods, late autumn and dry, dry and cold in winter. Plain