It should consider how land use and resources should be allocated and managed to achieve certain goals, such as economic growth, environmental sustainability, and social well-being.
Dylai ystyried sut y dylid dyrannu a rheoli defnydd tir ac adnoddau i gyflawni nodau penodol, megis twf economaidd, cynaliadwyedd amgylcheddol, a lles cymdeithasol.