Impacts of terrain on land surface phenology derived from Harmonized Landsat 8 and Sentinel-2 in the Tianshan Mountains, China

Ding, Chao; Yao, Lishuang; Xie, Qiaoyun; Li, Hao; Zhang, Bingwei

doi:10.1080/15481603.2023.2242621

Cited by 2 publications

(1 citation statement)

References 60 publications

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“…Previous study found that the mean forest carbon loading consistently decreased from valley bottoms to ridges [60]. Notably, faults in the study area predominantly exhibit an east-west orientation, leading to the formation of north-facing shaded slopes and south-facing sunny slopes [61]. The slope aspect significantly influences microclimate factors, including air and soil temperature, evapotranspiration, and wind speed [12].…”

Section: Elevation-dependent Contrasting Effects Of Fault Distributio...mentioning

confidence: 76%

Contrasting Effects of Tectonic Faults on Vegetation Growth along the Elevation Gradient in Tectonically Active Mountains

Li,

Liu,

Zhao

et al. 2023

Forests

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Long-term tectonic movements have shaped the geomorphological features and hydrothermal conditions of mountains, influencing their vegetation growth patterns in both positive and negative ways. However, little is known about the effect of fault development on the spatio-temporal variation in vegetation along the elevation gradient in mountainous regions. To address this issue of montane tectonic ecology, this study selected the tectonically active mid-altitude zone (1000–3500 m) of the Chinese Western Tianshan Mountains. The role of tectonics is investigated by fault length density maps calculated from zonal statistics of region-scale fault survey data (1:250,000). The normalized difference vegetation index (NDVI) was chosen as an indicator to analyze the growth status of vegetation. The spatial distribution of fault length density, elevational, and interannual characteristics of the NDVIs from 2000 to 2020 and their relationships along the elevation gradient were investigated. The results show that the faulting zone accounts for 32.6% of the study area and the high faulting zone exhibits a unimodal distribution along the elevation gradient, with the maximum occurring at elevations of approximately 2000 m. The NDVIs of forests and high-coverage grassland show a unimodal distribution with elevation, with the maximum occurring at elevations of approximately 2000 m, coinciding with that of fault length density. In the elevation range of 1000–2500 m, the NDVI of the faulting zone is lower than that of the non-faulting zone, whereas that of the elevation range of 2500–3500 m is higher—a difference that is particularly evident in forests. This elevation-dependent contrasting effect of faults on vegetation growth could be attributed to more favorable hydrothermal conditions for vegetation in fault valleys and reduced landslide susceptibility with increasing elevation. This study highlights the need to consider fault distribution in understanding vegetation distribution and growth in tectonically active mountains.

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Section: Elevation-dependent Contrasting Effects Of Fault Distributio...mentioning

confidence: 76%

Contrasting Effects of Tectonic Faults on Vegetation Growth along the Elevation Gradient in Tectonically Active Mountains

Li,

Liu,

Zhao

et al. 2023

Forests

View full text Add to dashboard Cite

show abstract

Spatiotemporal variation of spring phenology and the corresponding scale effects and uncertainties: A case study in southwestern China

Zhu,

She,

Gao

et al. 2024

International Journal of Applied Earth Observation and Geoinfor

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Impacts of terrain on land surface phenology derived from Harmonized Landsat 8 and Sentinel-2 in the Tianshan Mountains, China

Cited by 2 publications

References 60 publications

Contrasting Effects of Tectonic Faults on Vegetation Growth along the Elevation Gradient in Tectonically Active Mountains

Contrasting Effects of Tectonic Faults on Vegetation Growth along the Elevation Gradient in Tectonically Active Mountains

Spatiotemporal variation of spring phenology and the corresponding scale effects and uncertainties: A case study in southwestern China

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