In recent years, the urbanization level of eastern Russia has shown an increasing trend.
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Spatiotemporal evolution characteristics of coordinated development of urbanization and ecological environment in eastern Russia-Perspectives from the 3D global trend and 2D plane analysis.
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The sentences
The difference of eco-environment level shows a decreasing trend in the north-south direction, which is reflected in the steep decreasing trend of the first-order function changing into the inverse U-shaped trend of second-order function.