The resource area is limited across the globe. Sustainable land management is not only necessary against the background of climate change for the purpose of satisfying the various interests in the area. Climate protection measures, alongside climate adaptation measures such as flood water retention areas, need to be combined with existing requirements for the area. The starting point of the dissertation is that spatial planning can play a key role by observing sustainable land management from a cross-sectoral perspective, against the background of climate change. In view of the most effective planning, it is first necessary to highlight the regional governance of spatial planning as regards land management on the different levels of administration as well as identifying the opportunities and limitations of the planning. The present study defines spatial planning as formal regional planning and informal spatial developments. Spatial planning therefore also comprises informal planning structures and processes alongside the formal planning processes in the multi-level system of spatial planning. It is by means of the multi-level system of spatial planning that planning provisions are made on the various levels of administration and transferred to the next level. Spatial planning works on various benchmark levels as part of this principle of countervailing influence. Spatial planning attempts to unite various sectors and demands on the area and to protect and secure protected objects as well as resources in the long-term.