What analytical technique pioneered by Ian Lennox McHarg provided the foundation for modern GIS by overlaying ecological constraints?

Answer

Layered mapping techniques

Ian Lennox McHarg advocated for ecological planning using layered mapping techniques to analytically map soil, slope, and water, forming the basis for modern GIS.

What analytical technique pioneered by Ian Lennox McHarg provided the foundation for modern GIS by overlaying ecological constraints?
inventiondesigncitytoolurban planning