Abstract:Land use status data of Changsha-Zhuzhou-Xiangtan (hereinafter referred to as CZT) urban agglomeration from 1995 to 2018 were selected to analyze the spatial-temporal change characteristics of ecological land in CZT urban agglomeration by observing land dynamics and spatial evolution. Woodlands, grasslands and water area are defined as ecological land in the study area with ecological service functions of effectively regulating ecological balance and maintaining biodiversity. From the time perspective, the number of ecological land shows a downward trend. The structure proportion of forest land was the largest, water area was the middle, and grassland was the least. The dynamic value of ecological land use is negative for woodlands and grasslands, while the dynamic value of water area is unstable. From the spatial perspective, the number of patches, patch density and landscape fragmentation in the study area shows an upward trend, while the average patch area shows a downward trend. The ecological space is shrinking, and the ecological land tends to be fragmented and separated. The focus is mainly in the southeast part and northeast corner, and its agglomeration is weakened. Based on this, we suggest promoting the integration of ecological environment protection and governance, improving the legal system of ecological land, and strengthening ecological repair and protection, so as to promote the green and healthy sustainable development in CZT urban agglomeration.