Study on the Structural Characteristics of Mesh Filter Cake in Drip Irrigation: Based on the Growth Stage of Filter Cake DOI Creative Commons

Yangjuan Long,

Zhenji Liu, Quanli Zong

и другие.

Agriculture, Год журнала: 2024, Номер 14(8), С. 1296 - 1296

Опубликована: Авг. 6, 2024

Mesh filters are frequently employed in water-saving irrigation fields. Studies addressing the method of cake formation and characteristics during mesh filter’s growing phase still missing. One-way orthogonal experiments were carried out using with 220 μm 320 aperture sizes as research objects, taking particle concentrations, inlet flow, growth phases experimental factors. According to variation rule seed pressure drop process filter cake, is divided into four stages, which follows: slow blockage first second stages (M1, M2), fast stage (M3), filtration (M4). Moreover, size distribution, porosity (ε), pore-to-particle ratio (KP), median (d50) used represent structural characteristics. The results show that was a started filling pores by intercepted particles progressed large-particle skeleton subsequently filtered particles. During this process, proportion gradually decreased, while increased incrementally, (ε) decreased. Meanwhile, smaller screen, cake’s was, but larger (KP) was. As flow rate increased, augmented M1 M2 stages; however, it decreased M3 M4 stages. concentration had minor influence on porosity. Lastly, regression model for under two conditions established, based factors such rate, concentration, stage. coefficients determination, R2, 90.33% 80.73%, indicating good fit.

Язык: Английский

Economic efficiency of drip and flood irrigation. Comparative analysis at farm scale using DEA DOI Creative Commons
Marta García-Mollá,

Rosa Puertas,

Virgina Vega-Carrero

и другие.

Agricultural Water Management, Год журнала: 2025, Номер 309, С. 109314 - 109314

Опубликована: Янв. 27, 2025

Язык: Английский

Процитировано

0
Research on the compensation mechanism of pressure compensating emitters based on numerical simulation and visualisation experiment DOI
Xueli Chen, Zhengying Wei,

Ruijia Ma

и другие.

Biosystems Engineering, Год журнала: 2025, Номер 253, С. 104125 - 104125

Опубликована: Март 20, 2025

Язык: Английский

Процитировано

0
A Review of the Application and Impact of Drip Irrigation under Plastic Mulch in Agricultural Ecosystems DOI Creative Commons
Wang Chunyu, Sien Li, Siyu Huang

и другие.

Agronomy, Год журнала: 2024, Номер 14(8), С. 1752 - 1752

Опубликована: Авг. 10, 2024

Food security, a crucial issue for the development of humankind, is often severely constrained by water scarcity. As globally recognized most advanced agricultural water-saving technology, drip irrigation under plastic mulch (DIPM) has played significant role in grain production. However, comprehensive review dual impacts this practice farmland remains lacking. This study conducted an exhaustive DIPM research from 1999 to 2023 and employed CiteSpace software perform co-occurrence clustering analysis keywords order reveal hotspots trends. The results show that attention technology increased annually reached peak 2022. China leads number publications field, reflecting its emphasis on technologies. critically discusses farmland. On positive side, can improve soil temperature moisture, enhance nutrient availability, promote absorption roots, increase crop growth rate yield while reducing evaporation nitrogen loss, suppressing weed growth, decreasing herbicide usage, lowering total greenhouse gas emissions. negative it will cause pollution residues, damage structure, have lead clogging systems, which costs energy consumption, hinder hamper salinization management, further reduce groundwater level. future requires optimization advancement. Such strategies as mechanized residual-mulch recovery, biodegradable substitution, aerated alternate are proposed address existing issues triggered DIPM. advocates active exploration farming management practices superior development. These could higher yields, water–nitrogen efficiency, lower environmental impact

Язык: Английский

Процитировано

1
Determining clogging threshold of ceramic emitters to promote wolfberry production in Northwest China DOI Creative Commons

Xuanyue Tong,

Pute Wu, Xufei Liu

и другие.

Agricultural Water Management, Год журнала: 2024, Номер 303, С. 109054 - 109054

Опубликована: Сен. 9, 2024

Язык: Английский

Процитировано

1
Study on the Structural Characteristics of Mesh Filter Cake in Drip Irrigation: Based on the Growth Stage of Filter Cake DOI Creative Commons

Yangjuan Long,

Zhenji Liu, Quanli Zong

и другие.

Agriculture, Год журнала: 2024, Номер 14(8), С. 1296 - 1296

Опубликована: Авг. 6, 2024

Mesh filters are frequently employed in water-saving irrigation fields. Studies addressing the method of cake formation and characteristics during mesh filter’s growing phase still missing. One-way orthogonal experiments were carried out using with 220 μm 320 aperture sizes as research objects, taking particle concentrations, inlet flow, growth phases experimental factors. According to variation rule seed pressure drop process filter cake, is divided into four stages, which follows: slow blockage first second stages (M1, M2), fast stage (M3), filtration (M4). Moreover, size distribution, porosity (ε), pore-to-particle ratio (KP), median (d50) used represent structural characteristics. The results show that was a started filling pores by intercepted particles progressed large-particle skeleton subsequently filtered particles. During this process, proportion gradually decreased, while increased incrementally, (ε) decreased. Meanwhile, smaller screen, cake’s was, but larger (KP) was. As flow rate increased, augmented M1 M2 stages; however, it decreased M3 M4 stages. concentration had minor influence on porosity. Lastly, regression model for under two conditions established, based factors such rate, concentration, stage. coefficients determination, R2, 90.33% 80.73%, indicating good fit.

Язык: Английский

Процитировано

0