Next Article in Journal
Leveraging Hydrologic Accounting and Water Markets for Improved Water Management: The Case for a Central Clearinghouse
Previous Article in Journal
Conceptual Framework for Sediment Management in Torrents
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle

Depth-Dependent Seasonal Variation of Soil Water in a Thick Vadose Zone in the Badain Jaran Desert, China

MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China
*
Author to whom correspondence should be addressed.
Water 2018, 10(12), 1719; https://doi.org/10.3390/w10121719
Received: 9 October 2018 / Revised: 18 November 2018 / Accepted: 21 November 2018 / Published: 24 November 2018
(This article belongs to the Section Water Resources Management and Governance)
  |  
PDF [3441 KB, uploaded 26 November 2018]
  |  

Abstract

In a vadose zone the soil water content can change seasonally, driven by seasonal variations of meteorological factors. This dynamic behavior is depth-dependent, which controls the groundwater recharge from infiltration, and plays an essential role in the environments in arid and semi-arid regions. In particular, the depth-dependent seasonal variations of soil water were investigated in the Badain Jaran Desert (BJD), China, where the vadose zone is thick. The monitoring results showed that the amplitudes of temperature and soil moisture content in the shallow vadose zone (depth < 3 m) significantly decrease with depth. For the deep vadose zone (depth >3 m), the depth-dependent dynamic was synthetically estimated with both numerical and analytical models. Results show that the penetration depth of seasonal fluctuation is about 47 m, below which the infiltration flux stabilizes at a level of 30.7 ± 4 mm/yr. The depth to water table in the BJD is generally larger than 50 m, up to 480 m. As a consequence, groundwater recharge from infiltration in this area almost does not change in different seasons. View Full-Text
Keywords: soil water fluctuation; penetration depth; groundwater recharge; arid and semi-arid region; Badain Jaran Desert soil water fluctuation; penetration depth; groundwater recharge; arid and semi-arid region; Badain Jaran Desert
Figures

Figure 1

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 (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhou, Y.; Wang, X.-S.; Han, P.-F. Depth-Dependent Seasonal Variation of Soil Water in a Thick Vadose Zone in the Badain Jaran Desert, China. Water 2018, 10, 1719.

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.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top