Next Article in Journal
Integrating Sustainable Stormwater Management in Urban Planning: Ways Forward towards Institutional Change and Collaborative Action
Previous Article in Journal
Application of the City Blueprint Approach in Landlocked Asian Countries: A Case Study of Ulaanbaatar, Mongolia
Previous Article in Special Issue
Effect of Rain Peak Morphology on Runoff and Sediment Yield in Miyun Water Source Reserve in China
Open AccessArticle

Spatial and Temporal Patterns of Rainfall Erosivity in the Tibetan Plateau

1
School of Geographic Sciences, Xinyang Normal University, Xinyang 464000, China
2
Institute of International Rivers and Eco–security, Yunnan University, Kunming 650091, China
3
Yunnan Key Laboratory of International Rivers and Trans-boundary Eco–security, Yunnan University, Kunming 650091, China
4
Soil and Water Conservation Bureau of Tibet Autonomous District, Lhasa 850000, China
5
Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
*
Author to whom correspondence should be addressed.
Water 2020, 12(1), 200; https://doi.org/10.3390/w12010200 (registering DOI)
Received: 19 December 2019 / Revised: 7 January 2020 / Accepted: 8 January 2020 / Published: 10 January 2020
(This article belongs to the Special Issue Rainfall Erosivity in Soil Erosion Processes)
The Tibetan Plateau is influenced by global climate change which results in frequent melting of glaciers and snow, and in heavy rainfalls. These conditions may increase the risk of soil erosion, but prediction is not feasible due to scarcity of rainfall data in the high altitudes of the region. In this study, daily precipitation data from 1 January 1981 to 31 December 2015 were selected for 38 meteorological stations in the Tibetan Plateau, and annual and seasonal rainfall erosivity were calculated for each station. Additionally, we used the Mann–Kendall trend test, Sen’s slope, trend coefficient, and climate tendency rate indicators to detect the temporal variation trend of rainfall erosivity. The results showed that the spatial distribution of rainfall erosivity in the Tibetan Plateau exhibited a significant decreasing trend from southeast to northwest. The average annual rainfall erosivity is 714 MJ·mm·ha−1·h−1, and varies from 61 to 1776 MJ·mm·ha−1·h−1. Rainfall erosivity was mainly concentrated in summer and autumn, accounting for 67.5% and 18.5%, respectively. In addition, annual, spring, and summer rainfall erosivity were increasing, with spring rainfall erosivity highly significant. Temporal and spatial patterns of rainfall erosivity indicated that the risk of soil erosion was relatively high in the Hengduan mountains in the eastern Tibetan Plateau, as well as in the Yarlung Zangbo River Valley and its vicinity. View Full-Text
Keywords: rainfall erosivity; soil erosion; spatial and temporal pattern; Mann–Kendall test; Tibetan Plateau rainfall erosivity; soil erosion; spatial and temporal pattern; Mann–Kendall test; Tibetan Plateau
Show Figures

Figure 1

MDPI and ACS Style

Gu, Z.; Feng, D.; Duan, X.; Gong, K.; Li, Y.; Yue, T. Spatial and Temporal Patterns of Rainfall Erosivity in the Tibetan Plateau. Water 2020, 12, 200.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop