关键词: 坡度带, 植被覆盖度, 遥感影像, 关系, 偃师区

Abstract: In order to explore the relationship between slope distribution and vegetation coverage, the information of slope and vegetation coverage in Yanshi district were extracted by Landsat 8 image and DEM, and their relationship were analyzed. The results showed that the slope of the district was gentle with good vegetation coverage,which was suitable for human habitation and life; The vegetation coverage distribution was greatly affected by slopes of 2°, 6°, 15° and 25°. When the slope was no more than 15°,the coverage between 10% to 30% accounted for the largest proportion of the total area, but in the slope zone from 2° to 6°, the coverage between 60% to 80% accounted for the largest proportion of the total area, and in the slope zone from 6° to 15°, the coverage above 80% accounted for the largest proportion;After the slope exceeded 15°, the coverage between 60% to 80% and beyond 80% occupied dominant position;After the slope exceeded 25°, above 80% coverage occupied dominant position exceeding the coverage from 60%to 80%;The coverage beyond 80%, from 60% to 80% showed same trend that first decreasing, then increasing and then gradually decreasing with slope increase, while coverage distributions from 45% to 60%, 30% to 45%, 10% to 30% and lower 10% gradually decreased with slope increase. There are remarkable results in ecological and clean small watershed construction for Yanshi district, and the vegetation coverage has increased greatly,the experience is worth popularizing and learning.

Key words: slope belt, vegetation coverage, remote sensing images, relationship, Yanshi district