Bibliographic Details
| Title: |
Spatiotemporal Changes and Influencing Factors of Vegetation Cover in Fujian Province Based on KNDVI. |
| Alternate Title: |
基于KNDVI 的福建省植被覆盖时空变化及影响因子分析. |
| Authors: |
Yimin, GAO1,2 G18006974206@163.com, Liang, ZHANG2, Wujun, XI1 |
| Source: |
Journal of Resources & Ecology. May2026, Vol. 17 Issue 3, p898-910. 13p. |
| Subject Terms: |
*Normalized difference vegetation index, *Provinces, *Ecological impact, *Environmental protection, *Trend analysis, *Ground vegetation cover, *Spatiotemporal processes |
| Geographic Terms: |
Fujian Sheng (China), China |
| Abstract (English): |
Fujian is one of the key forest areas in southern China. Analyzing the changes in vegetation coverage and its driving factors can provide a theoretical basis for evaluating ecological protection efforts and strengthening ecological construction. The Kernel Normalized Difference Vegetation Index (KNDVI) is an improved vegetation index that can effectively overcome the limitations of the traditional Normalized Difference Vegetation Index (NDVI) under complex terrain and climatic conditions, and more accurately reflect the growth status of vegetation within a region. Taking Fujian Province as the study area, this study uses trend analysis, the Hurst index, and other methods to analyze the characteristics of spatiotemporal variations and future trends of vegetation coverage from 2000 to 2020, and it then explores the dominant influencing factors and reasons for the interannual changes in vegetation coverage over the past 20 years in Fujian Province. The results show three aspects of vegetation coverage in Fujian Province. (1) From 2000 to 2020, the overall vegetation coverage in Fujian Province showed an increasing trend, with an average annual growth rate of 0.005 yr-1. Areas with significant increases in vegetation coverage accounted for 62.3% of the total, while areas with significant reductions accounted for 23.5%. (2) From 2000 to 2020, 62.5% of the areas in Fujian Province had projected trends of vegetation coverage that were consistent with the past, showing a continuous growth trend, while a few areas had the possibility of first decreasing and then increasing or continuous degradation. (3) Natural and human factors jointly drive the dynamic changes in vegetation. Annual precipitation and topographic factors play a mainly positive role in promoting changes in vegetation coverage, while per capita GDP and population density have shown negative effects at different times. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
福建是我国南方重点林区之一, 分析其植被覆盖变化及驱动因子能为评估生态保护效果和加强生态建设提供理 论依据。核归一化植被指数（KNDVI）作为一种改进的植被指数, 可以有效克服传统归一化植被指数（NDVI）在复杂地形和 气候条件下的局限性, 更加准确地反映区域内植被的生长状况。以福建省为研究区, 运用趋势分析、Hurst 指数等方法分析其 2000-2020 年植被覆盖时空变化特征及未来变化趋势, 并探究影响福建省20 年来植被覆盖年际变化的主导因素及影响原因。 结果表明：（1）2000-2020 年福建省植被覆盖整体呈增长趋势, 年均增速为0.005 yr-1, 植被覆盖显著增加的区域占总体的62.3%, 显著减少的区域占23.5%。（2）2000-2020 年福建省62.5%的区域植被覆盖未来变化趋势与过去一致, 整体呈持续增长态势, 少 数区域存在先减后增或持续退化的可能性。（3）自然与人文因子共同驱动植被动态变化。年降水和地形因子对植被覆盖变化起主 要正向促进作用, 人均GDP 和人口密度则在不同时期表现出负向影响. [ABSTRACT FROM AUTHOR] |
| Database: |
Energy & Power Source |
