Effects of Climate Change and Human Activities on Vegetation Coverage in Arsenic Sandstone Area of Yellow River Basin

• Published in: Shuitu baochi tongbao Vol. 43; no. 6; pp. 412 - 420
• Main Authors: Sheng Yan, Liu Linfu, Yuan Yuan, Wang Shuo, Li Juan, An Li
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.12.2023
• Subjects: arsenic sandstone area; climate change; geographic detectors; human activity; vegetation coverage
• ISSN: 1000-288X
• DOI: 10.13961/j.cnki.stbctb.2023.06.046

[Objective] The arsenic sandstone area is the most serious soil erosion area in the Yellow River basin. Vegetation coverage changes and their driving factors were determined in order to provide a scientific reference for vegetation restoration and ecological reconstruction in this area. [Methods] MOD13Q1 NDVI data from 2000 to 2022 were used with the Sen trend, Mann-Kendall significance test, Hurst index, residual analysis, and other methods to determine the temporal and spatial variation trends of vegetation coverage during the study period in the arsenic sandstone area. The response relationships between vegetation coverage and climatic factors and human activities were also determined. [Results] ① Vegetation coverage in the arsenic sandstone area increased by 4%/yr (p<0.05) from 2000 to 2022. Vegetation coverage in the study area exhibited obvious spatial differences in the three study areas, showing the spatial distribution trends of “higher in the south and lower in the north” and “higher in the east and