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Improved soil hydro...
Improved soil hydrological modeling with the implementation of salt-induced freezing point depression in CoupModel : Model calibration and validation
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- Wu, Mousong (författare)
- KTH Royal Institute of Technology,KTH,Hållbar utveckling, miljövetenskap och teknik,Wuhan University,Nanjing University,State Key Laboratory of Frozen Soil Engineering (SKLFSE)
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- Zhao, Q. (författare)
- Zhengzhou University,Wuhan University
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- Jansson, Per-Erik (författare)
- KTH Royal Institute of Technology,KTH,Hållbar utveckling, miljövetenskap och teknik
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- Wu, J. (författare)
- Wuhan University
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- Tan, X. (författare)
- Sichuan University
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- Duan, Zheng (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Wang, K. (författare)
- Wuhan University
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- Chen, Peng (författare)
- Hohai University
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- Zheng, Minjie (författare)
- Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
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- Huang, J. (författare)
- Wuhan University
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- Zhang, Wenxin (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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(creator_code:org_t)
- Elsevier B.V. 2020
- 2020
- Engelska.
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Ingår i: Journal of Hydrology. - : Elsevier B.V.. - 0022-1694 .- 1879-2707.
- Relaterad länk:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- Soil freezing/thawing is an important mechanism to control soil water and heat redistribution in mid-to-high latitudes. Salt in the agricultural soil from mid-to-high latitudes can alter characteristics of soil freezing/thawing cycle and then affect soil thermal and hydrological processes in winter and finally cause salinization in spring. To quantify the impacts of soil salinization on soil water and heat transport in saline soils, we conducted field experiments on soil water and heat dynamics in two typical agricultural regions of northern China with different climate and soil conditions. The coupled soil heat and water model—CoupModel has been extended to account for the dynamic impacts of salt on freezing point depression. The newly-added module improved the representation of soil freezing point depression by significantly improving model performance between simulated and measured soil temperatures, especially around freezing point, with mean error (ME) for the soil temperature at various depths reduced by 16% to 77% for the entire winter period. With a systematic model calibration approach, processes related to energy balance and soil freezing/thawing have been well constrained for both study sites with different characteristics for soil hydrology and energy balance. The model generally showed good performance with respect to soil moisture and temperature for both the calibration and validation periods. Our study has demonstrated a new modeling approach to successfully account for the impacts of salt on soil freezing/thawing and the new module can be a useful tool to address the salinization problems in mid-to-high latitudes with respect to climate change and water management.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Nyckelord
- Freezing point depression
- Saline soil
- Seasonal frost
- Sensitivity analysis
- Soil hydrology
- Agricultural robots
- Agriculture
- Climate change
- Energy balance
- Hydrology
- Saline water
- Soil mechanics
- Soil moisture
- Temperature
- Temperature measurement
- Water management
- Agricultural soils
- Calibration and validations
- Freezing-point depression
- Hydrological process
- Model calibration and validation
- Model performance
- Soil salinization
- Systematic modeling
- Freezing
- Freezing point depression
- Saline soil
- Seasonal frost
- Sensitivity analysis
- Soil hydrology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
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Wu, Mousong
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Zhao, Q.
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Jansson, Per-Eri ...
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Wu, J.
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Tan, X.
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Duan, Zheng
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visa fler...
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Wang, K.
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Chen, Peng
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Zheng, Minjie
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Huang, J.
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Zhang, Wenxin
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- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Samhällsbyggnads ...
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och Vattenteknik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Oceanografi hydr ...
- Artiklar i publikationen
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Journal of Hydro ...
- Av lärosätet
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Kungliga Tekniska Högskolan
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Lunds universitet