一、引言我国国土广袤,土地利用形式多样。为准确、经济地进行大面积土地资源调查,各省都在开展县级试点工作,寻找好的方法。研究单位也在研究探索新的路子。多光谱航空遥感是一项比较先进的技术,是一种分割地面的反射电磁波谱,并分别记录在黑白胶片和红外胶片上的技术。由于地物反射光谱的能力不尽相 I. Introduction China’s vast territory, land use in various forms. In order to accurately and economically carry out large-scale land resources survey, all provinces are carrying out pilot work at the county level in order to find good ways. Research units are also exploring new ways to explore. Multispectral airborne remote sensing is a more advanced technique that is a technique of splitting the reflected electromagnetic spectrum of the ground and recording it separately on black and white film and infrared film. Because of the ability to reflect the spectrum of terrestrial substances is not all phase