地理科学 ›› 1987, Vol. 7 ›› Issue (4): 369-373.doi: 10.13249/j.cnki.sgs.1987.04.369

• 研究报道 • 上一篇    下一篇

黄淮海平原土壤养分的彩红外影象分析

李天顺   

  1. 中国科学院遥感应用研究所, 北京
  • 出版日期:1987-07-20 发布日期:1987-07-20

THE ANALYSIS OF COLOUR INFRARED IMAGES OF SOIL NUTRIENT IN THE HUANGHUAIHAI PLAIN

Li Tianshun   

  1. Institute of Remote Sensing Application, Academia Sinica, Beijing
  • Online:1987-07-20 Published:1987-07-20

摘要: 土壤养分的精确含量,来自实地的采样分析,这是一件浩繁的工作。但就实用而言,区别出土壤养分含量的高、中、低三个级别,已有广泛的用途。本文以河南省封丘县为例,利用彩红外影象的标志分析,做了划分土壤养分状况的尝试,具有快速方便、经济实用、划分级别虽较粗,但分布区域精确等优点。

Abstract: The analysis of colour infrared images shows that these four factors:soil texture, wheat community exterior in the early jointing stage, the distance of crop land from villages and communication lines,and farmland utilization features,have definite interpretation elements, And they are obviously correlated with soil nutrient, The rank of the four factors in soil nutrient is that the first is the soil texture, the second the wheat community exterior, the third the distance of crop land from villages and communication lines,and the last the farmland utilization features. Through comprehensive judgement by the arthmetic progression mark, the soil nutrient is classified into three grades of high, medium and low.