Intensity and Stationarity Analysis of Land Use Change Based on CART Algorithm

Xiao Sang,Chengwei He,Jinlong Zang,Tongyao Xie,Xiaoxu Wu,Ying Fu,Qiaozhen Guo

doi:10.1038/s41598-019-48586-3

Abstract

Land use directly reflects degree of human development and utilization of land. Intensity analysis of land use is a quantitative method to analyze land use changes. In this paper, land use changes in Tianjin were studied using Thematic Mapper (TM) remote sensing images in 1995, 2000, 2005, 2010 and Operational Land Imager (OLI) remote sensing image in 2015. Land use information was extracted using decision tree classification method based on CART (Classification and Regression Trees) algorithm. This paper introduced land use intensity analysis to analyze its change intensity and stationarity, respectively at interval, category and transition levels. Based on the theory, new models were developed in the transition level to analyze land use change pattern. The analysis quantifies the contribution of a certain land categories to land use change during a specific time interval. The change of land use during 1995–2015 indicated that Tianjin experienced rapid urban development with the area of urban land increased by about 7.5%. This study provided a reference for the sustainable development of land use in Tianjin.

Highlights

Land use intuitively records surface features which are changed by human activities to satisfy the needs for natural resources
In terms of land use change analysis, some studies focused on the characteristics of land use change without systematic analysis, like the impact of conservation status and ownership on land use and land cover change (LULC)[40]
New models were developed to quantify the contribution of land categories to land use change, and taking Tianjin as the study area we analyzed land use change during 1995–2015 based on the intensity analysis to provide reference for urban sustainable development for Tianjin

Summary

Introduction

Land use intuitively records surface features which are changed by human activities to satisfy the needs for natural resources. Land use change has a major impact on environmental problems such as land degradation, global climate change and biodiversity by urban expansion, forest overexploitation, and agricultural intensification[1,2,3,4]. Studies in this field improve the understanding of local development and provide a basis for sustainable development planning. Some research analyzed land use change using intensity analysis in many study areas, like southern coastal areas of China[43], and Parnitha and Penteli in Greece[44]. New models were developed to quantify the contribution of land categories to land use change, and taking Tianjin as the study area we analyzed land use change during 1995–2015 based on the intensity analysis to provide reference for urban sustainable development for Tianjin

Methods

Results

Discussion

Conclusion