四川森林航测和林业遥感回顾与展望（上）

1953～1959年林业部航测队在四川省袭江下游、金沙江下游、青衣江上游以及川、陕、鄂交界的大巴山林区进行航测航调工作,1956～1958年林业部三、八森林经理调查大队使用航片在四川小金、会东等县及甘、青交界的祁连山林区完成323hm~2的森林经理调查;1959～1983年间森勘一大队使用航片调查总面积达1432万hm~2、森勘二大队调查1211万hm~2;营林调查队1959～1962年使用航片调查设计达128万hm~2。使用航片节省劳力提高工效,便于野外调查作业和小班区划调绘,不受地形限制以及有利于室内检核调绘质量等优点。放大航片象幅,蒙片调绘,内业航片加密,辐射隔网和透视格网转绘技术可提高航片实用性和精度

Reviews and Prospects on Sichuan Forest Aerial apping and Forestry Remote Sensing (to be continued)

Form 1953 to 1983, the techniques of forest aerophotogrametric and forestry remote sensing were applied in the forest resource survey and forest management investigation in Sichuan province. It has such features as high efficiency in works,convenience for field investigation and subcompartment division .unlimited with terrain and beneficial to survey quality checking, etc. It can improves the practical feature and precision of aerophoto by enlarge the scale,draw with plastic film,double aerophotos ,trans-draw with radiational reticular partition and perspective net.