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.

Free trade zones represent an important system innovation space to realize economic agglomeration advantages with high-level openings. However, its evaluation of land intensive use has not received enough attention. The goal of this paper is to build a land use performance evaluation index system in line with the development trend of industrial economy and the characteristics of mixed land use in the free trade zones. An evaluation index system is constructed based on the three factors of land use status, land use efficiency and pilot free trade zone influence. Using the Delphi method and the entropy method, an empirical evaluation of the intensive land use level in the Shanghai Pilot Free Trade Zone is conducted. The results show the following: (1) integrating new indicators such as the free trade zone influence, social and ecological benefits into the evaluation index system show a characteristic and innovative land use evaluation; (2) in terms of the level of intensive land use, the Waigaoqiao Free Trade Zone has the highest intensity, followed by the Yangshan Free Trade Port Zone, and the Pudong Airport Comprehensive Free Trade Zone has the lowest intensity; and (3) development time, degree of land use, differences in leading functions, industrial land structures, and the diversification of employment structures are important factors that influence the differences in the levels of intensive land use in the Shanghai Pilot Free Trade Zone. This study also expands the performance evaluation of industrial land to the performance evaluation of construction land and provides references for industrial transformation and urban renewal of the Shanghai Pilot Free Trade Zone.

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The purpose of land consolidation is to promote moderately sized agricultural operations, intensive land use, concentrated population living and agglomerated industrial development. Previous research has primarily been macro-or mesoscale studies based on land ledger data, and analyzed only the effect of land consolidation on landscape ecological changes, only the resource and economic effects, or social effects or environmental effects of land consolidation. Aimed at addressing these shortcomings, an empirical analysis on the micro-scale based on land use patch data rather than land ledger data was conducted. Then, comprehensive research on land consolidation projects by integrating landscape pattern analysis with production, living, and ecological benefit assessments was performed. Furthermore, the relationship between land consolidation projects and the "Three Concentrations" policy was considered. The results show that: (1) land consolidation has directly or indirectly improved landscape ecological patterns of the project area; and (2) land consolidation has clearly improved the balanced distribution of cultivated land and the concentrated distribution of construction land in the project area. These changes not only improve the living conditions of farmers but also meet the construction requirements of the "Three Concentrations" in the Shanghai metropolitan suburbs.