遥感技术在土壤调查与制图中的应用研究 Ⅰ.卫片—航片和地面工作相结合的土壤调查方法

<正> 遥感(Remote sensing),即从远距离感知物体之意。如所周知,照像术就是一种遥感技术。而利用飞机或卫星上的遥感装置以获取地球表面上的各种地物信息,则是六十年代中期迅速发展和更为专门化的现代遥感技术。航片和卫片都属于现代遥感技术的一部分。航片的取得是通过安装在飞机上的航测照相机,对地面景物在可见光波段进行摄影成象的,而卫片则是利用安装在卫星上的传感器,收

THE APPLICATION OF REMOTE SENSING TECHNOLOGY TO SOIL SURVEYS 1.A Method for Associating MSS Frame,Air Photograph and Actual Ground Investigation in Soil Sirveys

The present article deals with the image of remote sensing applied to soil survey in Jinjiang region of Fujian Province.There are several typical land- forms such as Quanzhou seashore plain,Jinjiang Huian marine built terrace, rocky hill and Daiyun Mountain region with Jinjiang River passing through them.The total area ranges to 10,000 km.sq. Landscape applied to soil survey was studied with emphasis on methodo- logy and feasibility in survey.A procedure was designed for associating the MSS frame(E-1),air photograph and actual ground investigation of the soils. The procedures are as follows: 1.Preliminaries:Including MSS 4.5.6.7.,air photograph and geologic map,gcomorphologic map,or general base map and data of soils,etc. 2.Application of landscape image:remote sensing data can supply the general data and the interpreter must have some knowledge about the soil forming factors such as patterns of land use and vegetation cover which can be mapped with remote sensing data. 3.Investigation of actual ground conditions for the soils in the field: With the interpretation completed,an answer sheet map will be ready for the delineation of landscapes and soils,including a tentation legend. Investigation of the actual ground conditions and the soil profiles must also be carried out. The numbers of soil profile are as follows:the mountainous region:40- 50 sampling points/10,000 km.sq.;the hilly region:30-35/10,000 km.sq.and the plain region:20-25/10,000 km.q.