"Create a diagram depicting a landscape planning and design process focused on promoting environmental ecological health and human well-being. Illustrate the early stages of comprehensive investigation, with designers studying natural and cultural features of the environment. Include a diverse group of stakeholders, such as experts and community members, sharing opinions around a table. Show landscape architects actively guiding the planning process, defining zoning areas and circulation pathways on blueprints. Emphasize harmony between nature and human elements, with clear zoning and circulation plans serving as the foundation for a sustainable, health-oriented landscape design."