Historic urban landscape was of two types----informal and formal .Informal is more of reserved forest type whereas formal is more of a big garden .These lanscapes add to the ambience of the building and highlight certain principles like focus emphasis, etc.Landscape influences THE MICRO CLIMATE OF A PLACE,REDUCES POLLUTION AND IMPROVES THE AIR QUALITY.
There are many ways, concepts and models, that showed the benefits of adopting the approach of historic urban landscape urban .These are included, but not limited to, sustainable development (De Rosa and Di Palma, 2013), smart development model (Girard 2013), and socioeconomic developemnt (Zhao, 2018). All above can enhance the infrastructure and quality of urban life.
The below references can show more details and techniques, which will answer some of your questions, based on studying a set of study cases.
- De Rosa, F. and Di Palma, M. (2013). Historic Urban Landscape Approach and Port Cities Regeneration: Naples between Identity and Outlook.
- Girard, L. F. (2013). Toward a Smart Sustainable Development of Port Cities/Areas: The Role of the “Historic Urban Landscape” Approach.
- Zhao, H. (2018). How Can It Be More Real? A Case Study to Present the Authenticity of a Local Heritage District from the Perspective of Regional Spatial Morphology.