使用航测或卫星红外线彩色照相,来监测环境,不但能了解一个地区的自然资源和土地利用情况,而且还能以绿色为指标,了解植物覆盖率及其生长情况,了解人们在开发自然过程中对自然破坏的程度,以及现阶段生物所具有的净化能力和生物保存的状况。我们肉眼能感到的光波长度,大概在0.4微米(μ)到0.7微米左右的范围。但照射到物体上的光线,不仅有更短的紫外线,也有更长的红外线,或各种固定组合的中磁波。而反射不同波长的光量,是各种物质所固有的特点。具有生命力的植物叶子,比其他无生命物体,对近 Use of aerial or satellite infrared color photography to monitor the environment, not only to understand a region’s natural resources and land use, but also to green as an indicator of plant coverage and its growth, to understand people in the development of natural processes The degree of natural destruction, and the status of biological purification and the ability of biological preservation at this stage. Our naked eye can feel the light wave length, about 0.4 microns (μ) to about 0.7 microns range. But the light that shines on the object not only has shorter ultraviolet rays, but also longer infrared rays, or various fixed combinations of magnetic waves. The amount of light reflecting different wavelengths, is the inherent characteristics of various substances. Viable plant leaves, near other than inanimate objects