Version 1
: Received: 1 June 2023 / Approved: 6 June 2023 / Online: 6 June 2023 (09:51:42 CEST)
How to cite:
Liang, X.; Zhang, L.; He, S.; Song, K.; Zheng, Z. Characteristics and Projection of Rainfall Erosivity Distribution in The Hengduan Mountains. Preprints2023, 2023060433. https://doi.org/10.20944/preprints202306.0433.v1
Liang, X.; Zhang, L.; He, S.; Song, K.; Zheng, Z. Characteristics and Projection of Rainfall Erosivity Distribution in The Hengduan Mountains. Preprints 2023, 2023060433. https://doi.org/10.20944/preprints202306.0433.v1
Liang, X.; Zhang, L.; He, S.; Song, K.; Zheng, Z. Characteristics and Projection of Rainfall Erosivity Distribution in The Hengduan Mountains. Preprints2023, 2023060433. https://doi.org/10.20944/preprints202306.0433.v1
APA Style
Liang, X., Zhang, L., He, S., Song, K., & Zheng, Z. (2023). Characteristics and Projection of Rainfall Erosivity Distribution in The Hengduan Mountains. Preprints. https://doi.org/10.20944/preprints202306.0433.v1
Chicago/Turabian Style
Liang, X., Ke Song and Zicheng Zheng. 2023 "Characteristics and Projection of Rainfall Erosivity Distribution in The Hengduan Mountains" Preprints. https://doi.org/10.20944/preprints202306.0433.v1
Abstract
The spatiotemporal variations of rainfall erosivity in the Hengduan Mountains, charac-terized by rugged terrain and high potential soil erosion risks, over the past 30 years was exam-ined. The changing trends of rainfall erosivity for 2025-2040 was also be investigated under the comprehensive scenario of moderate socio-economic development (SSP2-4.5) combined with me-dium-low radiative forcing, using four global climate models (GCMs) based on CMIP6. The results indicated that: (1) The annual distribution of rainfall erosivity in the Hengduan Mountains exhib-ited significant seasonal variations, with the order of erosivity being summer > autumn > spring > winter on a seasonal scale. (2) Over the past 30 years, there has been a slight decrease in annual precipitation and a slight increase in rainfall erosivity, with periodic extreme values occurring every 6-8 years. (3) Rainfall erosivity showed a decreasing gradient from southeast to northwest in terms of spatial distribution. There was a significant positive correlation between rainfall ero-sivity and precipitation, while a significant negative correlation existed with elevation in the ver-tical direction. Moreover, there was an increasing trend of rainfall erosivity in the northeastern part of the Hengduan Mountains and a decreasing trend in the southern region. (4) Under the joint driving forces of increased precipitation and erosive rainfall events, rainfall erosivity in the future is expected to significantly increase, posing a more severe risk of soil erosion in the Heng-duan Mountains.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
