【摘要】 植被覆盖度是植被的直观量化指标，能够反映植被的生长情况，对生态环境建设具有重要意义。为探讨2000—2021年间新邵县植被覆盖度的动态变化，以湖南省邵阳市新邵县为研究区，利用2000年和2021年两期Landsat遥感影像，采用归一化差异植被指数和像元二分模型估算不同时期新邵县的植被覆盖度，并进行差值分析。结果表明：自2000年到2021年，新邵县的植被覆盖度整体呈增长趋势，且西部、南部地区的植被覆盖度增加明显，这与当地封山育林、绿化造林等政策实施密切相关。这也反映出新邵县在2000—2021年期间注重生态保护建设，森林质量明显提升。更多还原

【Abstract】 Fractional vegetation coverage is an intuitive quantitative index, which can reflect the growth of vegetation, and it has great significance to ecological environment construction. In this study, We used Landsat remote sensing images from 2000 to 2021 with normalized vegetation index and pixel dichotomy model to estimate the fractional vegetation coverage of Xinshao County, Shaoyang City, Hunan Province. From 2000 to 2021, the fractional vegetation coverage of Xinshao County showed an overall growth trend and increased significantly in the west and south of Xinshao County, which was closely related to the implementation of local policies such as closing the land for reforesta and afforestation. The improvement of forest quality from 2000 to 2021 reflects that the Xinshao County government attaches importance to ecological protection construction.更多还原