NDLI: Characteristics of soil infiltration in the Tarim River floodplain

Content Provider	Springer Nature Link
Author	Li, Xinhu Feng, Gary Zhao, Chengyi Shi, Fengzhi
Copyright Year	2016
Abstract	The ecology in the Tarim River Basin is influenced by inundation of its floodplain. To date, however, there is limited information about the infiltration properties of floodplain soils that are inundated by this river. The aim of this study was to investigate steady-infiltration rates of these soils under four different hydraulic heads (5, 10, 20, and 30 cm). Results showed that the mean infiltration rates were generally high and ranged from 3.17 to 3.50 cm h$^{−1}$ when the hydraulic head was between 5 and 30 cm. The steady infiltration increased slightly as the hydraulic head increased. The relationship between the hydraulic head and the infiltration rate can be described by the equation y = 0.0122x + 3.072, (R $^{2}$ = 0.739), where y is the steady-infiltration rate and x is the hydraulic head. There was no significant difference between the infiltration rates for the four different hydraulic heads. The infiltration rate was highest for loamy sand, followed by sandy loam, and was lowest for silt soils. Infiltration was influenced by soil texture and crust, and was low (<1 cm h$^{−1}$, hydraulic head of 5 cm) for soils with thick crusts, and high for soils without surface crusts (mean of 6.09 cm h$^{−1}$, hydraulic head of 5 cm). The steady-infiltration rate was not influenced by soil organic matter. These results indicate that flood water can percolate into the floodplain soils and give an improved understanding of the factors that influence the ecological processes on the Tarim River floodplains.
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	9
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Infiltration rate River flooding Topsoil Tarim River Hydraulic head Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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