Abstract

Colombian fish farming is a rapidly growing sector, crucial for food security and the national economy, generating a significant number of direct and indirect jobs. However, its sustainable development is threatened by its high dependence on fossil fuels to meet energy demands, which can account for up to 40% of operational costs, primarily to maintain optimal pond conditions, with oxygenation being the most critical parameter. This article analyzes the integration of solar photovoltaic (PV) energy systems as a viable and sustainable solution to the energy challenges of aquaculture. Known as aquavoltaic systems, they not only provide clean and economically competitive energy but also drive the sector's digitalization by enabling real-time water quality monitoring. This allows for precise control of dissolved oxygen levels, reducing fish mortality, improving yields, and minimizing environmental impact by avoiding CO₂ emissions. Although it is acknowledged that panel manufacturing has environmental impacts, these are significantly lower compared to the continuous damage caused by fossil fuels. It is concluded that synergy between public policy and private investment is essential to promote the adoption of this technology and consolidate sustainable growth for Colombian aquaculture. Keywords: Aquaculture, Solar Photovoltaic Energy, Sustainability, Dissolved Oxygen, Colombia, Aquavoltaics, Energy Efficiency. Colombian fish farming is a rapidly growing sector, crucial for food security and the national economy, generating a significant number of direct and indirect jobs. However, its sustainable development is threatened by its high dependence on fossil fuels to meet energy demands, which can account for up to 40% of operational costs, primarily to maintain optimal pond conditions, with oxygenation being the most critical parameter. This article analyzes the integration of solar photovoltaic (PV) energy systems as a viable and sustainable solution to the energy challenges of aquaculture. Known as aquavoltaic systems, they not only provide clean and economically competitive energy but also drive the sector's digitalization by enabling real-time water quality monitoring. This allows for precise control of dissolved oxygen levels, reducing fish mortality, improving yields, and minimizing environmental impact by avoiding CO₂ emissions. Although it is acknowledged that panel manufacturing has environmental impacts, these are significantly lower compared to the continuous damage caused by fossil fuels. It is concluded that synergy between public policy and private investment is essential to promote the adoption of this technology and consolidate sustainable growth for Colombian aquaculture. Keywords: Aquaculture, Solar Photovoltaic Energy, Sustainability, Dissolved Oxygen, Colombia, Aquavoltaics, Energy Efficiency.

Abstract

The purpose of this project is to design and build an automated and ecological trap for the control of common pests in school and family crops in the department of Sucre, as an alternative to the intensive use of chemical pesticides. It is intended to integrate technological and biological components that allow attracting and capturing insects such as the white fly (Bemisia tabaci) and the codling moth (Spodoptera frugiperda), by means of light stimuli and suction mechanisms. The study incorporates STEAM fundamentals to foster interdisciplinary learning and critical thinking in high school students. It will be developed through a project-based methodology (PBL) and formative research, with field tests, data recording, and scientific dissemination activities. Keywords: Organic farming, STEAM education, Micro:bit, sustainability, pest control, educational innovation.  

Abstract

In order to study the characteristics of spatial variability of soil infiltration in the aeolian sandy land improvement and utilization area, this paper conducted a study on the six different land use types in the aeolian sandy land in northwest Liaoning by means of average and random distribution. With bare land as the control group, the physical parameters of the soil in the test area were analyzed and processed through traditional statistical analysis and geostatistical analysis, and the spatial distribution of various physical parameters was studied using ordinary Kriging interpolation. The results show that the bulk density of different land use types in the aeolian sandy land improvement and utilization area in northwestern Liaoning has been reduced, and the total porosity, capillary porosity, water content and the ratio of clay particles have increased to varying degrees. Soil infiltration has a negative correlation with moisture content and clay particles, and a positive correlation with the ratio of total porosity. In addition, among all types of improved utilization, other forest land has the largest infiltration and the research land has the smallest one.