Progress on ecological security evaluation of cultivated land

The research progresses on studies phases, concept, characteristics, driving factors of ecological security of cultivated land were summarized in the paper. The paper also systematically discussed the evaluation scale, method and technology, index system, as well as simulation and forecast, protection measures of ecological security of cultivated land through literatures review. The main previous research results were also compared and analyzed. The ecological security of cultivated land had experienced the primary stage of construction, the development stage of evaluation, the new stage of evaluation, and it had been becoming an important and hot topic in the corresponding research fields. The concept of ecological security of cultivated land had been set up, and cultivated land ecological security evaluation just started. The existing researches were mainly focused on analysis of current situation of cultivated land ecological security, the comprehensive researches on mesoscale, scientific and rational evaluation index system, dynamic change and simulation studies were still relatively lack. Consequently, it is difficult to comprehensively understand the spatio-temporal evolution and mechanism of cultivated land ecological security. As a conclusion, the future researches should focus on the integrated evaluation and simulation of cultivated land ecological security with spatial-temporal changing characteristic from multi-scales. The results would play a great significance role on the theory of cultivated land ecological security research. They also would benefit cultivated land protection and area reduction control, and design of land utilization plan.