气候变化领域集成服务门户(CCPortal): Soil erosion assessment using earth observation data in a trans-boundary river basin

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DOI	10.1007/s11069-021-04571-6
	Soil erosion assessment using earth observation data in a trans-boundary river basin
	Kumar N.; Singh S.K.
发表日期	2021
ISSN	0921030X
卷号	107 期号:1
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.
关键词	Hydrus Hypsometry Morphometry Rainfall erosivity RUSLE Slope length Soil erosion
英文关键词	digital elevation model; EOS; erodibility; hydrological modeling; hypsometry; morphometry; Revised Universal Soil Loss Equation; slope; soil erosion; Ghaghara River
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206339
作者单位	K. Banerjee Centre for Atmospheric and Ocean Studies, University of Allahabad, Prayagraj, Uttar Pradesh 211002, India
推荐引用方式 GB/T 7714	Kumar N.,Singh S.K.. Soil erosion assessment using earth observation data in a trans-boundary river basin[J],2021,107(1).
APA	Kumar N.,&Singh S.K..(2021).Soil erosion assessment using earth observation data in a trans-boundary river basin.Natural Hazards,107(1).
MLA	Kumar N.,et al."Soil erosion assessment using earth observation data in a trans-boundary river basin".Natural Hazards 107.1(2021).