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Modelling water and...
Modelling water and energy fluxes with an explicit representation of irrigation under mulch in a maize field
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- Wang, Chunyu (författare)
- China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China.;Natl Field Sci Observat & Res Stn Efficient Water, Wuwei 733009, Peoples R China.,National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province,China Agricultural University
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- Li, Sien (författare)
- China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China.;Natl Field Sci Observat & Res Stn Efficient Water, Wuwei 733009, Peoples R China.,China Agricultural University,National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province
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- Wu, Mousong (författare)
- Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210023, Peoples R China.,Nanjing University
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- Jansson, Per-Erik (författare)
- KTH Royal Institute of Technology,KTH,Hållbar utveckling, miljövetenskap och teknik
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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,University of Copenhagen
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- He, Hongxing (författare)
- McGill Univ, Dept Geog, Burnside Hall,805 Sherbrooke St West, Montreal H3A OB9, PQ, Canada.,McGill University
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- Xing, Xiuli (författare)
- Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210023, Peoples R China.,Nanjing University
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- Yang, Danni (författare)
- China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China.;Natl Field Sci Observat & Res Stn Efficient Water, Wuwei 733009, Peoples R China.,National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province,China Agricultural University
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- Huang, Siyu (författare)
- China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China.;Natl Field Sci Observat & Res Stn Efficient Water, Wuwei 733009, Peoples R China.,National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province,China Agricultural University
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- Kang, Dekui (författare)
- Water Resources Utilizat Ctr Shiyanghe Basin, Water Resources Dept, Gansu 733000, Peoples R China.,Water Resources Utilization Center of Shiyanghe Basin
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- He, Yujiang (författare)
- Water Resources Utilizat Ctr Shiyanghe Basin, Water Resources Dept, Gansu 733000, Peoples R China.,Water Resources Utilization Center of Shiyanghe Basin
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China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China;Natl Field Sci Observat & Res Stn Efficient Water, Wuwei 733009, Peoples R China. National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province (creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
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Ingår i: Agricultural and Forest Meteorology. - : Elsevier BV. - 0168-1923 .- 1873-2240. ; 326
- 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
- Globally, water-saving irrigation plays a vital role in agricultural ecosystems to achieve sustainable food pro-duction under climate change. Irrigation under mulch (IUM) system has been widely used in modern agricultural ecosystems due to its high water use efficiency, but it remains unclear how each component of the water and energy processes responds to this agricultural management practice. Current modeling approaches are inade-quate in investigating the impacts of IUM management on water-energy balance, which have shown more complicated than non-mulched management. Therefore, this study provided an explicit simulation of water and energy fluxes in IUM system using a process-oriented ecosystem model-CoupModel and the three years of the eddy covariance (EC) measurements. Based on Monte Carlo and the multiple model performance evaluation criteria, most of the model sensitive parameters were well constrained and 32 potentially important parameters, e.g., iscovevap, the fraction of mulch coverage, were identified to characterize the impacts of plastic mulching on energy balance and water transport. After proper calibration, the coefficient of determination (R2) for measured and simulated soil temperature (T) and soil water content (SWC) was 0.79 and 0.60, respectively, and the R2 for T and SWC during the validation period were 0.91 and 0.71, respectively. Furthermore, we found that there was a strong coupling between the parameters of the water and energy processes, which would restrict the simulation results due to the correlation between the parameters and the evaluation indices. This study presented a sys-tematic model parameters calibration in the agricultural ecosystem implemented with IUM and provided with a more comprehensive understanding of the water and energy balance in cropland. These results would help agricultural model development with more detailed considerations of the water-saving management.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries (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
- Mulch -irrigation
- CoupModel
- Water -energy coupling
- Parameter sensitivity analysis
- Uncertainty analysis
- CoupModel
- Mulch-irrigation
- Parameter sensitivity analysis
- Uncertainty analysis
- Water-energy coupling
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Wang, Chunyu
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Li, Sien
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Wu, Mousong
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Jansson, Per-Eri ...
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Zhang, Wenxin
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He, Hongxing
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visa fler...
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Xing, Xiuli
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Yang, Danni
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Huang, Siyu
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Kang, Dekui
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He, Yujiang
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visa färre...
- Om ämnet
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- LANTBRUKSVETENSKAPER
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LANTBRUKSVETENSK ...
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och Lantbruksvetensk ...
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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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Agricultural and ...
- Av lärosätet
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Kungliga Tekniska Högskolan
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Lunds universitet