Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Jinhua Liu,Xiangyang Cao,Kun Jia,Guanglong Dong,Lesong Zhao

doi:10.3389/fenvs.2022.824254

Abstract

Land ecological security plays an important role in the sustainable land resources utilization and social economic development. In this study, the Pressure-State-Response (PSR) model was constructed to measure the land ecological security pattern based on grids scale of Jinan from 2006 to 2016. Then, Moran’s index was used to explore the spatial autocorrelation of the land ecological security score. Finally, the driving factors of land ecological security pattern differentiation in Jinan were revealed by using geographical detector method. The results showed that the level of land ecological security in Jinan, generally, decreased at the beginning and then gradually increased during the research periods. More specifically, land ecological security was represented as a downward trend in the central region and an upward trend in the southern mountainous area. The apparent regional heterogeneity of land ecological security level in Jinan showed the overall distribution pattern “low in the middle and high around” and the direction of urban expansion consistent with the low-level land ecological security. Land ecological security presented a significant spatial autocorrelation. The differentiation of land ecological security pattern was mainly driven by social and economic development factors, among which urban expansion was most important, so urban development should try to avoid occupying those areas with high level of land ecological security. From the study, the valuable information could be provided in the improvement of land ecosystem environment and in the facilitation of sustainable development.

Highlights

Land is the material basis for the survival and development of human society and the basic premise for the healthy development of an ecosystem (Zhang et al, 2007; Wu et al, 2019a; Liu et al, 2020)
The objectives of this study were (1) to evaluate the land ecological security and analyze the spatiotemporal pattern in Jinan; and (2) to investigate the influencing factors driving the spatial differentiation of land ecological security
The results show that the overall condition of land ecological security has improved from 2011

Summary

Introduction

Land is the material basis for the survival and development of human society and the basic premise for the healthy development of an ecosystem (Zhang et al, 2007; Wu et al, 2019a; Liu et al, 2020). Studies have shown that land use can greatly influence the regional environment and ecosystem services, and land ecological security is important to the ecosystem (Liu et al, 2019b; Wu et al, 2019b). With the rapid increase of population, the excessive pursuit of economic benefits of land use has destroyed the land ecology to a certain extent. As the capital of Shandong, Jinan is in the stage of rapid urbanization and is faced with considerable discussion on land use and ecological environmental protection (Qi et al, 2020; Liu et al, 2021a).

Objectives

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Results

Discussion

Conclusion