| DOI: | 10.1007/s11069-021-04571-6
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| 论文题名: | Soil erosion assessment using earth observation data in a trans-boundary river basin |
| 作者: | Kumar N.; Singh S.K.
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| 刊名: | Natural Hazards
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| ISSN: | 0921030X
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| 出版年: | 2021
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| 卷: | 107, 期:1 | | 语种: | 英语
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| 中文关键词: | Hydrus
; Hypsometry
; Morphometry
; Rainfall erosivity
; RUSLE
; Slope length
; Soil erosion
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| 英文关键词: | digital elevation model
; EOS
; erodibility
; hydrological modeling
; hypsometry
; morphometry
; Revised Universal Soil Loss Equation
; slope
; soil erosion
; Ghaghara River
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| 英文摘要: | Soil erosion is a challenging environmental hazard that can be reduced by conservation practices. The study aimed to estimate the soil erosion rate using different digital elevation models (DEMs) data. We have applied the revised universal soil loss equation (RUSLE) to assess soil erosion in the Ghaghara river basin. We have also estimated morphometric parameters to understand the susceptibility of sub-basin to soil loss. The estimated rates of soil erosion by RUSLE are 21.39, 18.31, 4.35, and 4.64 ton/ha/year for SRTM 30 m, ALOS 30 m, MERIT 90 m, and SRTM 90 m, respectively. In addition to this water retention curve of soil was estimated using Hydrus-1D model. Result show that a clay_loam soil has highest water holding capacity as 0.284 cm3/cm3 and glacier (GLACIER-6998) has lowest as 0.22 cm3/cm3, respectively in the basin. Further the basin hypsometry analysis was performed using Q-GIS, which indicate that sub-basins age from young to mature due to soil erosion. In last, the prioritized map was generated by the integration of RULSE, water holding capacity, and morphometry showed that the upper and middle portions of the basin need better conservation measures to control the excess soil erosion compared to the lower portion of the basin. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/169138
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| Appears in Collections: | 气候变化与战略
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作者单位: | K. Banerjee Centre for Atmospheric and Ocean Studies, University of Allahabad, Prayagraj, Uttar Pradesh 211002, India
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| Recommended Citation: | |
Kumar N.,Singh S.K.. Soil erosion assessment using earth observation data in a trans-boundary river basin[J]. Natural Hazards,2021-01-01,107(1)
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