关键词: “三北”防护林, 遥感, 系列制图

Abstract: The remote sensing mapping technique is an integrated outcome of the ramote sensing development and the geographical catography. It is charcaterized by rich information source, truegeographical landscape, qualitative, or quantitative contents and quick mapping ability. The raoid development of remote sensing techniques extends man s sight from low altitude to high altitude, from local places to the globe, and changes the black-and white or color photograph into multi-spectral scanning image or infrared photograph or full aperture side-looking rader image, thus enriched mappimg imforma-tion. The remote sensing series mappimg of the "Three-North Protective Forest" regions contains large area and many sorts of maps, being an attempt towards the mappimg standardization.