Fig. 8

Spatial change and comparison of landscape pattern index at different monitoring points. The landscape diversity index reflects the richness and complexity of landscape types, and the larger its value, the richer and more complex the landscape types. The landscape dominance index refers to the degree of landscape structure controlled by one or a few major landscape elements and is an indication of the degree of dominance of a single landscape type; its value is often inversely proportional to the landscape diversity index; the greater the diversity index, the smaller the degree of dominance. The landscape uniformity index reflects the uniformity of the distribution of the area and quantity of each type in the landscape pattern, and the larger its value is, the more uniform the distribution of the size of each landscape type is. Different colors in the bar chart represent other monitoring points, the horizontal axis represents different buffer distances, and the vertical axis represents (a) values of the landscape diversity index, b values of the landscape dominance index, and c values of the landscape evenness index