A research framework of land use transition in Suzhou City coupled with land use structure and landscape...

Under the premise of facing land-use sustainable development goals, clarifying the process and trend of regional land-use transition (LUT) is of considerable significance to the direction of national land-use optimization in the future. Suzhou City is not only an economically developed area in China but also a leading area of economic transformation and development, which embodies the changing process of regional development path since China's reform and opening up. This paper constructed an integrated research framework of micro-individual land use structure and macro-mixed landscape multifunctionality. It used spatial analysis technology to deeply analyze the LUT process of Suzhou, and quantified change characteristics of land use structure and function in Suzhou from 2000 to 2015. For structure, Suzhou has undergone a large-scale transition during the study period, mainly from farmland to construction land, in which transition speed and degree are at a high level until the trend slows down after 2010. For function, the number of high values of landscape multifunctionality gradually increases. Still, the scope of high-value areas progressively reduces by urban expansion constraints; the multifunctionality around urban expansion area gradually weakens. Besides, forest land, grassland, and other ecological land have the most significant number of land use functions. The comprehensive transition of land use structure and function can give a summary as a circle-layer dynamic change process of urban development. Transition hotspots can be divided into five specific regions of land management and finally realize comprehensive development zoning of urban and rural areas at the township level. LUT research framework based on structure-function coupling will provide ideas for land management mode transformation and contribute to sustainable land spatial planning strategy formulation.