Abstract
The ecological security of land is related to the sustainable development of human beings. With the continuous progress of science, the evaluation standard of land ecological security is also changing. The traditional safety evaluation method is time-consuming and laborious, with high cost of data acquisition, small amount of data and large error of data itself. The establishment of intelligent land ecological security evaluation system through the Internet of things is conducive to a better understanding of the overall land situation in the region. Taking the land data of Cangzhou City, China as an example, this study uses the Internet of things technology to establish a set of intelligent evaluation and grading model. The random forest algorithm is used to evaluate the land ecological security, and combined with the existing data to predict the land ecological security in 2020-2025. Compared with other security evaluation methods, the intelligent land ecological security evaluation system in this study has the advantages of short operation time, low energy consumption and high accuracy. This method has a strong guiding significance for the future land ecological security management.
Highlights
As the basic environment for human survival activities, the land provides abundant resources
The Cangzhou city is taken as the research area to build the land ecological security evaluation index system
In order to study the performance of the random forest algorithm, accuracy, average recall, iteration times and running time were used to analyze and compare the random forest algorithm in this study
Summary
As the basic environment for human survival activities, the land provides abundant resources. The quality and quantity of land resources restrict China’s ecological security and economic development [1]. In order to pursue high economic growth rate, human beings have developed land resources to different degrees. Unreasonable development methods have led to the reduction of green space, desertification and salinization of land. A series of land ecological problems, such as soil erosion, reduce the function of the land ecosystem and the ability to deal with and resist ecological risks, causing losses to the national economy and affecting the sustainable development of the society [2]–[4]. It is of great significance to the ecological security evaluation of land
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