The adjustment strategy of ecological land use in the process of urbanization in the suburbs of big cities: A case study of Jizhou District, Tianjin

Abstract

With the rapid development of rural urbanization, ecological problems have become increasingly serious, so the protection of ecological land is very important. Using vector images from 2010 to 2014 in Jizhou District, Tianjin City, supported by GIS technology, the land use types in Jizhou District, Tianjin City are divided into three categories: cultivated land, construction land and ecological land, and the ecological land is divided into three categories. It is divided into five categories: plantation land, forest land, grassland, water area and water conservancy facility land, and unused land, using methods such as ecological land area change rate and land use transfer matrix model to conduct research and analysis. Studies have shown that the ecological land in Jizhou District of Tianjin has been decreasing year by year in the past five years, and most of the ecological land has been transformed into construction land; the amount of woodland has changed the most drastically, the land for plantation has changed the fastest, while the amount of unused land has shown an overall upward trend.