Abstract:Biodiversity protection is an important goal of land and space comprehensive renovation. Biodiversity protection has obvious scale in comprehensive land and space renovation. Following the concept of natural solutions (NBS), regional (or watershed) biodiversity protection network is formed by building core area, buffer zone, ecological corridor and ecological node at the regional (or watershed) scale; at the landscape scale, through the construction of diversified and heterogeneous ecological landscape, At the site scale, the project system and technical model of biodiversity protection are constructed according to different functional spaces (agriculture, town and ecology)