Spatial, Temporal, and Vertical Variability of Ambient Environmental Conditions in Chinese Solar Greenhouses during Winter
Rattachement africain : kr, us, bd, cn. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The monitoring and control of environmental conditions are crucial as they influence crop quality and yield in Chinese solar greenhouses (CSGs). The objectives of this study were to assess the spatial, temporal, and vertical variability of major environmental parameters in CSGs during winter and to provide greenhouse climate/microclimate characteristics in order to facilitate the monitoring and control of greenhouse environmental conditions. A wireless sensor network (WSN) was deployed in two CSGs: one with crops and one without. Sensors were placed at different locations inside and outside the greenhouses, and the air temperature, humidity, CO2 concentration, light intensity, solar radiation, and wind conditions were measured and analyzed. Significant variability in the spatial, temporal, and vertical distribution of environmental factors was observed in both greenhouses. The average minimum and maximum temperatures and humidity inside the CSG with crops were 9.96 °C (4:00 h) and 24.5 °C (12:00 h), and 32.6% (12:00 h) and 92.1% (5:00 h), respectively. The temperature difference was 2.2 °C between layers in the CSG without crops and 1.4 °C between layers in the CSG with crops. The CO2 concentration in the different layers inside the CSG with crops was highest at night. The average maximum light intensity inside the CSG with crops was 32,660.19 lx, 36,618.12 lx, and 40,660.48 lx (12:00 h to 13:00 h) in the bottom, middle, and top layers, respectively. Sensor positioning in the greenhouse was evaluated by considering the sensors’ data variability. The findings of this study could aid in the development of a better monitoring and control system for CSG’s microclimate during winter. More research is needed on greenhouse microclimate control systems based on this variability analysis, which could improve crop quality and yield in greenhouses.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Spatial, Temporal, and Vertical Variability of Ambient Environmental Conditions in Chinese Solar Greenhouses during Winter
- Date Crossref
- 30/08/2023
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Chungnam National University Department of Agricultural Machinery Engineering pays non établi dans la noticeUniversité ou école supérieure
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University of Tennessee at Knoxville pays non établi dans la noticeUniversité ou école supérieure
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Texas A&M University pays non établi dans la noticeUniversité ou école supérieure
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Hajee Mohammad Danesh Science and Technology University Department of Agricultural and Industrial Engineering pays non établi dans la noticeUniversité ou école supérieure
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The Ohio State University Agricultural Technical Institute pays non établi dans la noticeUniversité ou école supérieure
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Shenyang Agricultural University pays non établi dans la noticeUniversité ou école supérieure
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College of Agricultural Sciences and Natural Resources Department of Biosystems Engineering and Soil Science pays non établi dans la noticeUniversité ou école supérieure
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College of Agriculture and Life Sciences Department of Biological and Agricultural Engineering pays non établi dans la noticeUniversité ou école supérieure
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College of Engineering pays non établi dans la noticeUniversité ou école supérieure
Department of Agricultural Machinery Engineering — Chungnam National University, University of Tennessee at Knoxville et Texas A&M University, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.