摘要
介绍一种利用微机制作土壤环境元素含量趋势面等值线图的实用方法，其中包括地理背景底图，趋势面等值线图及两圈的套绘技术。本法简便易操作，勿需复杂的硬、软件支撑，利用普遍流行的常用软件，不但能进行趋势面分析及绘图中所需的坐标转换，而且可解决图件套绘中的定位问题，对拥有微机和小型绘图仪的单位均可适用。
A useful method, the charting techniques of trend isogram of elemental contents which include the geographical map, the trend isograzn chart as well as the over-drawing of two figures, this method is very sample and convenient for operator to analysis the distribution trend of element contents and transform the coordinate and fix the position of over-drawing. It is suitable for the units which have only micro-computer and miniature plotter.
出处
《干旱环境监测》
1996年第4期193-198,共6页
Arid Environmental Monitoring
