Salt stress reduces plant growth and production. However, adequate fertilization can minimize the effects of salinity. From this perspective, this study aimed to assess the production and post-harvest quality of custard apple irrigated with saline water and fertilized with combinations of nitrogen, phosphorus, and potassium in the second year of cultivation. The experiment was conducted in a randomized block design and arranged as a 2 × 8 factorial with three replications, using containers adapted as drainage lysimeters in a protected environment in the municipality of Campina Grande, PB. The factors consisted of two levels of electrical conductivity of irrigation water - ECw (0.8 and 3.0 dS m-1) and eight combinations of N-P-K fertilization: 100-100-100; 100-100-125; 100-125-100; 100-125-125; 125-100-100; 125-100-125; 125-125-100; and 125-125-125% of the recommended (100%) level (100-80-40 g of N-P2O5-K2O per plant per year). Irrigation with the water salinity level of 3.0 dS m-1 reduced custard apple production in the second year. However, fertilization with the 125-100-125% N-P-K combination increased the mean fruit weight, total soluble solids, and ascorbic acid content. High irrigation water salinity negatively affected the number of segments, number of fruits, number of seeds per plant, mean fruit weight, fruit diameter, and fruit height. The 125-100-40 g N-P-K combination provided the highest values of mean fruit weight, total soluble solids, ascorbic acid content, and maturity index regardless of the salinity level. The plants grown under the ECw of 0.8 dS m-1 and 125-100-80 g of N-P-K achieved the highest total production per plant. | O estresse salino reduz o crescimento e a produção das plantas, mas adequada adubação pode minimizar os efeitos da salinidade. Assim, objetivou-se avaliar a produção e a qualidade pós-colheita de frutos de pinheira irrigada com água salina e adubada com combinações de nitrogênio-fosforo e potássio no segundo ano de cultivo. O experimento foi conduzido em delineamento de blocos casualizados no esquema fatorial 2 × 8, com três repetições em vasos adaptados como lisímetros de drenagem em ambiente protegido no município de Campina Grande, PB. Os fatores foram constituídos por dois níveis de condutividade elétrica da água de irrigação - CEa (0,8 e 3,0 dS m-1) e oito combinações de adubação com N-P-K sendo 100-100-100; 100-100-125; 100-125-100; 100-125-125; 125-100-100; 125-100-125; 125-125-100 e 125-125-125% da dose recomemdada (100-80-40 g de N-P2O5-K2O por planta por ano). A irrigação com águas de 3,0 dS m-1 reduz a produção de pinheira no segundo ano, mas adubação com combinação 125-100-125% de N-P-K incrementa o peso médio de frutos, teores de sólidos solúveis e ácido ascórbico. O alto valor da salinidade da água de irrigação afetou negativamente o número de gomos, de frutos e de sementes por planta, peso médio de fruto, diâmetro e altura de frutos. A combinação 125-100-40 g de N-P-K proporcionou maior peso médio de frutos, sólidos solúveis totais, ácido ascorbico e indice de maturação, independentemente do nível salino. A maior produção total por planta foi obtida nas plantas cultivadas sob CEa de 0,8 dS m-1 e 125-100-80 g de N-P-K.

This article analyzes the conceptual framework in specialized literature on the manufacture of fruit-based hydrogel through which the environmental impact is reduced; In addition, due to its three-dimensional structure and flexibility, it can be manufactured through physical or chemical crosslinking. Their rubberiness is an advantage that allows them to resemble the tissues of living beings; and due to its easy adaptation to these and to cellulose, which is a natural polymer and abundant in nature, its use is constantly increasing in industry and in optometry; It is also produced in plants and bacteria by means of chemical dissolution. It is also stated that the industry, due to its dyes, pollutes surface water reserves and groundwater; and the use of hydrogels have contributed to reducing said contamination thanks to their absorption; and they are also used, successfully, for the cleaning of dyes in waste water. The methodology used consisted of the review of around eight bibliographic sources in which more than forty researchers participated; Next, the method of extracting cellulose and elaborating hydrogels is briefly described, based on which the conclusions are reached that cellulose-based hydrogels have the property of absorbing and retaining a large amount of water that provides them with various physicochemical properties that make hydrogels have a wide range of applications of interest for industry, as well as for science, in general, and in biomedicine for the manufacture of contact lenses and the removal of dyes from water | En este artículo se analiza el marco conceptual en literatura especializada sobre la fabricación de hidrogel en base de frutas mediante el cual se reduce el impacto ambiental; además por su estructura tridimensional y flexibilidad se puede fabricar a partir de reticulación física o química. Su gomosidad es una ventaja que les permite asemejarse a los tejidos de los seres vivos; y por su fácil adaptación a éstos y a la celulosa que es un polímero natural y abundante en la naturaleza, su uso se incrementa permanentemente en la industria y en la optometría; además se produce en las plantas y en las bacterias por medio de disolución química. También se afirma que la industria, por sus colorantes, contamina las reservas de aguas superficiales y las subterráneas; y la utilización de los hidrogeles han contribuido a disminuir dicha contaminación gracias a su absorción; y asimismo se los utiliza, con éxito, para la limpieza de tintes en agua residual. La metodología utilizada consistió en la revisión de alrededor de ocho fuentes bibliográficas en las cuales participan más de cuarenta investigadores; a continuación, se describe en breve el método de extracción de celulosa y elaboración de los hidrogeles, en base de lo cual se llega a las conclusiones que los hidrogeles basados en celulosa tienen la propiedad de absorber y retener una gran cantidad de agua que les provee varias propiedades fisicoquímicas que hacen que los hidrogeles tengan una amplia gama de aplicaciones de interés para la industria,nbsp; igualmentenbsp; para la ciencia, en general, y en la biomedicina para la elaboración de lentes de contacto y la remoción de tientes del agua.

O sistema de criação em tanques-rede é considerado uma das formas mais intensivas de cultivo praticado atualmente e tem se tornado popular devido ao fácil manejo e a possibilidade de aproveitamento de ambientes aquáticos já existentes. Entretanto, este tipo de atividade pode comprometer a qualidade da água. Assim, o objetivo deste trabalho foi de investigar as propriedades químicas e físicas da água em ambiente de criação de tambaqui em tanques-rede no reservatório da Usina Hidrelétrica de Tucuruí e comparar os dados obtidos com os fornecidos pela Resolução do Conselho Nacional de Meio Ambiente (CONAMA) 357/2005, a fim de serem utilizadas como subsídio para a gestão dos recursos pesqueiros e na adoção de estratégias de manejo e conservação. Para isso foi instalado um experimento num delineamento inteiramente casualizado com dois tratamentos, constituídos da área de criação de peixes em taques-rede e área controle (cerca de 400 metros a montante da área de criação de peixes em tanques-rede), utilizando-se quatro repetições. Cada unidade experimental foi constituída por água coletada através da garrafa de Van Dorn, há cerca de 1,5 m de profundidade e armazenada em uma garrafa de polietileno, com capacidade de armazenar de 1,5 L-1, avaliando-se as seguintes propriedades físicas e químicas: temperatura, condutividade elétrica, pH, alcalinidade, turbidez, oxigênio dissolvido, além das concentrações de amônia, nitrato, nitrito, nitrogênio total, fósforo total e ortofosfato. De acordo com os resultados obtidos, observou-se que a criação de tambaquis em tanques-rede foi eficiente na capacidade de assimilação das perturbações na qualidade de água provocadas pelo processo de produção atualmente empregado, mitigando o impacto da carga orgânica do uso da ração e do metabolismo dos peixes, não comprometendo a qualidade da água do reservatório. Entretanto, são necessárias boas práticas de manejo e monitoramento ambiental constante para a criação de peixes de forma sustentável de acordo com a Resolução do CONAMA. | The system of farming in cage fish is considered one of the most intensive cultivation practiced nowadays and has become popular due to easy handling and the possibility of use of existing aquatic environments. However this type of activity can compromise water quality. Thus, the objective of this project was to investigate the chemical and physical properties of water in an environment of tambaqui breeding in net tanks in the Tucuruí Hydroelectric Power reservoir and to compare the data obtained with those provided by the Resolution of the National Environmental Council (CONAMA) 357/2005, in order to be used as a subsidy for the management of fishery resources and in the adoption of management and conservation strategies. For this, an experiment was installed in a completely randomized design with two treatments, consisting of: 1) fish farming area in net cages and control area (about 400 meters upstream from the fish farming area in net cages), using four repetitions. Each experimental unit consisted of water collected through a Van Dorn bottle, about 1.5 m deep and stored in a polyethylene bottle, with a storage capacity of 1.5 L-1, evaluating the following physical properties and chemical: temperature, electrical conductivity, pH, alkalinity, turbidity, dissolved oxygen, in addition to concentrations of ammonia, nitrate, nitrite, total nitrogen, total phosphorus and orthophosphate. According to the results obtained, it was observed that the creation of tambaquis in net tanks was efficient in the capacity to assimilate the disturbances in water quality caused by the production process currently used, mitigating the impact of the organic load of the use of feed and fish metabolism, not compromising the reservoir water quality. However, good management practices and constant environmental monitoring are necessary for sustainable fish farming in accordance with CONAMA Resolution.

Sugar beet (Beta vulgaris L.) is one of the most cultivated vegetables in Brazil, where water limitation is the main cause of yield loss. This limitation can be attenuated with the application of organic solutes, such as ascorbic acid (AA). The objective was to evaluate the response of sugar beet plants under the application of AA via irrigation water as a strategy to attenuate water deficit. The experiment was carried out at the Centro de Ciências Agrárias of the Universidade Federal da Paraíba, Areia, Brazil, using a randomized complete block design with nine combinations of irrigation depths based on five evapotranspiration percentages (40.0, 51.6, 80.0, 108.4 and 120 % ET) and five doses of AA (0, 0.29, 1.0, 1.71 and 2.0 mM), with three replications, generated from a central composite matrix. Water use efficiency (WUE) and chlorophyll fluorescence index were evaluated. Data were submitted to analysis of variance and, when significant, to a regression analysis. Irrigation depths influenced chlorophyll a, b and total, maximum fluorescence, instantaneous WUE and intrinsic WUE, but no effect was observed for AA. The beet cultivar Maravilha Top Tall Early Wonder exhibits certain physiological mechanisms of tolerance to water stress. The ascorbic acid, in the concentrations and application method used in the study, had no effect on the beet plant response. | La remolacha azucarera (Beta vulgaris L.) es una hortaliza muy cultivada en Brasil, donde la limitación de agua es la principal causa del bajo rendimiento. Este efecto puede atenuarse con la aplicación de solutos orgánicos, como el ácido ascórbico (AA). El objetivo fue evaluar la respuesta de plantas de remolacha azucarera ante la aplicación de AA vía agua de riego como estrategia para atenuar el déficit de agua. El experimento se llevó a cabo en el Centro de Ciências Agrárias de la Universidade Federal da Paraíba, Areia, Brasil, bajo un diseño de bloques al azar con nueve combinaciones de cinco láminas de riego basadas en porcentajes de evapotranspiración (40,0; 51,6; 80,0; 108,4 y 120 % de ET) y cinco dosis de AA (0,0; 0,29; 1.0; 1,71 y 2,0 mM), con tres réplicas, a partir de una matriz experimental compuesta central. Se evaluó la eficiencia de uso del agua (EUA) y los índices de fluorescencia de las clorofilas. Los resultados se sometieron a un análisis de varianza y, en las variables significativas, a un análisis de regresión. Las láminas de riego afectaron los índices de clorofila a, b y total, máxima fluorescencia, y eficiencia instantánea e intrínseca de la EUA, pero ni hubo efecto de la aplicación de AA. El cultivar Maravilha Top Tall Early Wonder exhibe mecanismos fisiológicos de tolerancia al estrés hídrico. El ácido ascórbico, en las concentraciones y método de aplicación utilizados, no afectó la respuesta de las plantas.

[ES] El éxito de la adopción de medidas encaminadas a mejorar la garantía del suministro de agua de riego, tanto desde el punto de vista de la oferta como de la demanda, depende de su aceptación por los regantes, siendo la evaluación previa a su implementación de gran utilidad para la toma de decisiones. En este contexto, el objetivo de este trabajo es valorar los efectos de una de las medidas más utilizadas en la gestión de la oferta como es el aumento de la capacidad de almacenamiento y regulación, sobre el beneficio de los regantes. También se identifican aquellas características de los agricultores y las explotaciones que influyen en la heterogeneidad de las preferencias, y su efecto sobre la evolución temporal de la valoración. Para ello se ha utilizado la metodología de valoración contingente en la comunidad de regantes del Genil‑Cabra (Córdoba, España) Los resultados indican que los agricultores están dispuestos a pagar en media 23 €/ha y año para asegurar el suministro de agua, cifra que no cubriría los costes de la medida (38 €/ha y año). La renta anual neta y la superficie de cada tipo de cultivo, condicionada a la posibilidad de ser cultivado en secano, influyen sobre la preferencia individual de los regantes. Estos resultados, junto con la distribución espacial de las valoraciones individuales realizadas, ayudarán a los encargados de la gestión de la comunidad de regantes y el organismo de cuenca a tomar decisiones informadas sobre la adopción de medidas que permitan asegurar el suministro en el agua de riego. | [EN] Adoption success of measures aimed at improving irrigation water supply reliability, both from the supply and demand side, depends on their acceptance by irrigators, being the evaluation prior to their imple-mentation very useful for decision-making. In this context, this work aims to assess the effects of one of the most widely used measures in supply management, such as the increase in storage and regula-tion capacity, on the irrigators’ profits. It also aims to identify the farmers and farms characteristics that influence the heterogeneity of preferences, and their effect on the temporal evolution of valuation. For these purposes, the contingent valuation methodology has been used in the Genil-Cabra irrigation community (Cordoba, Spain). Results show that farmers are willing to pay on average 23 €/ha year to secure water supply, which would not cover the costs of the measure for increasing storage (38 €/ha year). The net annual income and the area of each type of crop, conditional on the possibility of being grown rain-fed, influenced the individual preference of irrigators. These results, together with the spatial distribu-tion of the individual assessments made, should help the irrigation community management and the Water Authority to make informed decisions on measures to secure irrigation water supply. | Este trabajo ha sido realizado bajo el Proyecto SIRRIMED (FP7-FOOD-CT-2009-245159), financiado por la Comisión Europea, y el Proyecto 20912/PI/18 de la Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia. | Peer reviewed

El artículo de investigación describe un análisis multi temporal de la calidad del agua en concentraciones de nutrientes presentes como fósforo, nitratos, nitritos y nitrógeno total en la cuenca media del Río Bogotá que son generados por influencia de procesos de degradación y eutrofización. La contaminación del Río Bogotá ha sido un referente en Colombia de diversos análisis de investigación, que han permitido la formulación y ejecución de proyectos encaminados a la mejora y buena gestión de la calidad hídrica. Para el desarrollo de este artículo, se trabajan los resultados generados por la Corporación Autónoma Regional de Cundinamarca CAR, en el marco del programa general de monitoreo de calidad de agua en la cuenca media del Río Bogotá, los datos usados son de 37 puntos desde el año 2014 al año 2019. | The research article describes a multi-temporal analysis of water quality in concentrations of nutrients present such as phosphorus, nitrates, nitrites, among others that are presented in the middle basin of the Bogotá River that are generated by the influence of degradation and eutrophication processes. The contamination of the Bogotá River has been a benchmark in Colombia for various research analyses, which have allowed the formulation and execution of projects aimed at the improvement and good management of water quality. For the development of this article, the results generated by the Regional Autonomous Corporation of Cundinamarca CAR are worked on, within the framework of the general water quality monitoring program in the middle basin of the Bogota River, the data used is 37 points from the year 2014 to the year 2019. | Especialización

Salt stress reduces plant growth and production. However, adequate fertilization can minimize the effects of salinity. From this perspective, this study aimed to assess the production and post-harvest quality of custard apple irrigated with saline water and fertilized with combinations of nitrogen, phosphorus, and potassium in the second year of cultivation. The experiment was conducted in a randomized block design and arranged as a 2 × 8 factorial with three replications, using containers adapted as drainage lysimeters in a protected environment in the municipality of Campina Grande, PB. The factors consisted of two levels of electrical conductivity of irrigation water - ECw (0.8 and 3.0 dS m-1) and eight combinations of N-P-K fertilization: 100-100-100; 100-100-125; 100-125-100; 100-125-125; 125-100-100; 125-100-125; 125-125-100; and 125-125-125% of the recommended (100%) level (100-80-40 g of N-P2O5-K2O per plant per year). Irrigation with the water salinity level of 3.0 dS m-1 reduced custard apple production in the second year. However, fertilization with the 125-100-125% N-P-K combination increased the mean fruit weight, total soluble solids, and ascorbic acid content. High irrigation water salinity negatively affected the number of segments, number of fruits, number of seeds per plant, mean fruit weight, fruit diameter, and fruit height. The 125-100-40 g N-P-K combination provided the highest values of mean fruit weight, total soluble solids, ascorbic acid content, and maturity index regardless of the salinity level. The plants grown under the ECw of 0.8 dS m-1 and 125-100-80 g of N-P-K achieved the highest total production per plant. | O estresse salino reduz o crescimento e a produção das plantas, mas adequada adubação pode minimizar os efeitos da salinidade. Assim, objetivou-se avaliar a produção e a qualidade pós-colheita de frutos de pinheira irrigada com água salina e adubada com combinações de nitrogênio-fosforo e potássio no segundo ano de cultivo. O experimento foi conduzido em delineamento de blocos casualizados no esquema fatorial 2 × 8, com três repetições em vasos adaptados como lisímetros de drenagem em ambiente protegido no município de Campina Grande, PB. Os fatores foram constituídos por dois níveis de condutividade elétrica da água de irrigação - CEa (0,8 e 3,0 dS m-1) e oito combinações de adubação com N-P-K sendo 100-100-100; 100-100-125; 100-125-100; 100-125-125; 125-100-100; 125-100-125; 125-125-100 e 125-125-125% da dose recomemdada (100-80-40 g de N-P2O5-K2O por planta por ano). A irrigação com águas de 3,0 dS m-1 reduz a produção de pinheira no segundo ano, mas adubação com combinação 125-100-125% de N-P-K incrementa o peso médio de frutos, teores de sólidos solúveis e ácido ascórbico. O alto valor da salinidade da água de irrigação afetou negativamente o número de gomos, de frutos e de sementes por planta, peso médio de fruto, diâmetro e altura de frutos. A combinação 125-100-40 g de N-P-K proporcionou maior peso médio de frutos, sólidos solúveis totais, ácido ascorbico e indice de maturação, independentemente do nível salino. A maior produção total por planta foi obtida nas plantas cultivadas sob CEa de 0,8 dS m-1 e 125-100-80 g de N-P-K.

The physicochemical and biological indices have been used in isolation; if the parameters of these indices were applied in an integrated manner, they would bring together in a single measure the functional and structural variability of the biotic and abiotic components of water quality. The aim of this study was to build a comprehensive water quality index. Eleven sampling points were selected considering different degrees of agro-industrial intervention. 21 abiotic variables and 27 biological metrics were measured. Macroinvertebrates were quantitatively collected and identified to family taxonomic level. Using Principal Component Analysis, after standardization and exclusion of uncorrelated variables (VIF ≤ 10), the abiotic gradient was determined, which represented the abiotic variables that explained the disturbances in the water; with the abiotic gradient and the biological metrics, a Pearson correlation was performed, and those biological metrics that presented a high and non-redundant correlation were selected (Pearson 0.6 ≤ r ≤ 0.8); with the selected biological metrics, we proceeded to formulate and categorize the index; finally, by means of simple linear regression, the proposed index was compared with five other indexes (ICA, ICOMO, EPT, BMWP/col. and ASPT). The results showed that the abiotic gradient was defined by CP 1 which explained 65.5% of the accumulated variance, represented by altitude (r = 0.411), iron (r = 0.345) and dissolved oxygen (r = 0.329). The biological metrics used for the index design were: % scrapers, % swimmers, NEF of order 2, Ephemeroptera and Trichoptera tolerance. It was concluded that the integral index presents a higher predictive level (R2 = 0.87) of water quality, compared to the other indices: ASPT (R2 = 0.79), BMWP/col. (R2 = 0.68), EPT (R2 = 0.61), ICOMO (R2 = 0.35) and ICA (R2 = 0.27). | Los índices fisicoquímicos y biológicos se vienen utilizando de manera aislada, si los parámetros de estos índices se aplicaran de manera integral, reunirían en una única medida la variabilidad funcional y estructural de los componentes bióticos y abióticos de la calidad del agua. El objetivo de este estudio fue construir un índice integral de calidad del agua. Once puntos de muestreo fueron seleccionados considerando distintos grados de intervención agroindustrial. Se midieron 21 variables abióticas y 27 métricas biológicas. Los macroinvertebrados fueron recolectados cuantitativamente e identificados hasta nivel taxonómico de familia. Mediante un ACP, previa estandarización y exclusión de variables no correlacionadas (VIF ≤ 10) se determinó el gradiente abiótico que representó a las variables abióticas que explicaron las perturbaciones en el agua; con el gradiente abiótico y las métricas biológicas se realizó una correlación de Pearson, y se seleccionaron aquellas métricas biológicas que presentaron una correlación elevada y no redundante (Pearson 0,6 ≤ r ≤ 0,8); con las métricas biológicas seleccionadas se procedió a formular y categorizar el índice; finalmente, mediante una regresión lineal simple, el índice propuesto fue comparado con otros cinco índices (ICA, ICOMO, EPT, BMWP/col. y ASPT). Los resultados mostraron que el gradiente abiótico fue definido por el CP 1 que explicó el 65,5% de la varianza acumulada, representado por la altitud (r = 0,411), hierro (r = 0,345) y oxígeno disuelto (r = 0,329). Las métricas biológicas utilizadas para el diseño del índice fueron: % de raspadores, % de nadadores, NEF de orden 2, tolerancia de Ephemeroptera y Trichoptera. Se concluyó que el índice integral presenta mayor nivel predictivo (R2 = 0,87) de la calidad del agua, frente a los demás índices: ASPT (R2 = 0,79), BMWP/col. (R2 = 0,68), EPT (R2 = 0,61), ICOMO (R2 = 0,35) e ICA (R2 = 0,27).

En el pais la contaminación relacionada con actividades socioeconomoicas y procesos naturales, afecta la calidad del agua de consumo humano. El objetivo de esta investigación fue evaluar la calidad del agua en fuentes empleadas para el uso doméstico en comunidades del municipio El Viejo, con el proposito de generar recomendaciones que contribuyan a reducir el riesgo de enfermedades de origen hídrico. En 2020 se realizó el estudio en 14 comunidades de El Viejo, como parte del convenio de colaboración entre la Universidad Nacional Agraria y la Agencia Católica Irlandesa para el Desarrollo (Trocaire). El estudio de carácter cualitativo evaluó la calidad del agua para consumo humano, utilizando 10 parámetros físico-químicos (mediante cintas indicadoras y multímetro HACH) y dos microbiológicos (utilizando Phatoscreen y Readycult Coliforms) en 12 pozos perforados que abastecen miniacueductos y ocho pozos excavados a mano para uso familiar o comunitario. Las fuentes estudiadas abastecen a 1 496 familias (5 760 personas). Los valores obtenidos de los parámetros físico – químicos indican que el agua de la mayoría de las fuentes es aceptable para el consumo, según las Normas de calidad del agua para consumo humano (Norma regional CAPRE) y las Guias para lacalidad del agua de consumo humano de la Organización Mundial de la Salud. Sin embargo, para reducir altos valores de dureza y salinidad en algunos pozos se sugiere realizar tratamiento al agua destinada al cosumo. Desde el punto de vista de la calidad biológica, entre el 75 % (muestreo de julio) y el 85 % de las fuentes (muestreo de noviembre), el consumo de agua representaba riesgo para la salud debido a la contaminación con bacterias del grupo coliformes y/o Escherichia coli, causantes de enfermedades diarreicas. La presencia de fosfato, amonio y/o nitrato en varias de las fuentes muestra una tendencia de contaminación por residuos orgánicos e inorgánicos, arrastrados por el agua de áreas aledañas. Los resultados sugieren la necesidad de elaborar el Plan de Seguridad del Agua para cada fuente, a fin de garantizar la aplicación de buenas prácticas de abastecimiento de agua de consumo humano. | In the country, pollution related to socio-economic activities and natural processes affects the quality of water for human consumption. The objective of this research was to evaluate the quality of water in sources used for domestic use in communities of the municipality of El Viejo, with the purpose of generating recommendations that contribute to reducing the risk of diseases of water origin.  In 2020, the study was carried out in 14 communities of El Viejo, as part of the Collaboration Agreement between the Universidad Nacional Agraria and the Irish Catholic Agencyfor Development (Trocaire). The qualitative study evaluated the quality of water for human consumption, using 10 physico-chemical parameters (using indicator tapes and HACH multimeter) and two microbiological parameters (using Phatoscreen and Readycult Coliforms) in 12 drilled wells that supply mini-aqueducts and eight wells dug by hand for family or community use. The sources studied supply 1 496 families (5 760 people). The values obtained from the physical-chemical parameters indicate that water from most sources is acceptable for consumption, according to the Water Quality Standards for Human Consumption (CAPRE Regional Standard) and the World Health Organization Guidelines for the Quality of Water for Human Consumption. However, to reduce high values of hardness and salinity in some wells, it is suggested to treat the water intended for consumption. From the point of view of biological quality, between 75% (July sampling) and 85% of the sources (November sampling), water consumption posed a health risk due to contamination with bacteria of the coliform group and/or Escherichia coli, which cause diarrhoeal diseases. The presence of phosphate, ammonium and/or nitrate in several of the sources shows a trend of contamination by organic and inorganic waste, washed away by water from surrounding areas. The results suggest the need to develop the Water Security Plan for each source, in order to ensure the application of good practices in the supply of water for human consumption.

En el presente trabajo se presentan los resultados de la pasantía “Apoyo en la fase de diagnóstico del plan de ordenamiento del recurso hídrico de los cuerpos de agua priorizados de la subzona hidrográfica del río Bogotá”, desarrollada desde el mes de febrero al mes de julio de 2022; el desarrollo de la pasantía se fundamentó en el cumplimiento de cuatro objetivos específicos, los cuales una vez alcanzados permitieron proveer soluciones óptimas para mejorar y complementar cada uno de los componentes desarrollados en la fase 2 - Diagnóstico del PORH. En primera instancia, se presenta un marco teórico que sustenta la gestión del recurso hídrico a nivel Nacional y los marcos normativos bajo los cuales se fundamenta; del mimo modo permite identificar y comprender los aspectos más relevantes en el proceso de formulación del Plan de Ordenamiento del Recurso Hídrico del río Bogotá. Posteriormente, se presenta el desarrollo metodológico estructurado en cuatro fases, las cuales permiten el cumplimiento de los 4 objetivos específicos y en conjunto desarrollan el objetivo principal de la pasantía “apoyar técnica y administrativamente en la fase de diagnóstico del Plan de Ordenamiento del Recurso Hídrico de los cuerpos de agua priorizados en la subzona hidrográfica del Río Bogotá”. Con la ejecución de la metodología se logra establecer los resultados de la pasantía, los cuales incluyen la estructuración de información técnica referente al Plan de Ordenamiento de los cuerpos de agua priorizados de la subzona hidrográfica del Río Bogotá (resaltando los avance en los componentes de monitoreo y calidad del recurso hídrico, componente social y censo y componente de hidrología), la organización de las carpetas contractuales al proceso ordenamiento y la consolidación de la trazabilidad administrativa del PORH río Bogotá. Con el análisis de los resultados se establecen finalmente las conclusiones, de las cuales se resalta que el trabajo social es a criterio del autor el factor más importante dentro del PORH del río Bogotá, ya que son las comunidades las que conocen, ocupan y hacen uso del territorio y de los recursos que este brinda, de modo que no se puede pretender trabajar en pro de un territorio si no se cuenta con el apoyo y compromiso de las comunidades que lo habitan. Finalmente, se presentan las recomendaciones dirigidas a mejorar cada uno de los componentes abordados durante la pasantía dentro de la fase de Diagnostico del PORH río Bogotá. | This paper presents the results of the internship "Support in the diagnostic phase of the water resource management plan of the prioritized water bodies of the Bogotá´s River hydrographic subzone", developed from February to July. from 2022; The development of the internship was based on the fulfillment of four specific objectives, which once achieved allowed providing optimal solutions to improve and complement each of the components developed in phase 2 - Diagnosis of the PORH. In the first instance, a theoretical framework is presented that supports the management of water resources at the national level and the regulatory frameworks under which it is based; In the same way, it allows identifying and understanding the most relevant aspects in the process of formulating the Plan for the Management of the Water Resources of the Bogotá´s River. Subsequently, the methodological development structured in four phases is presented, which allow the fulfillment of the 4 specific objectives and together develop the main objective of the internship "to support technically and administratively in the diagnostic phase of the Water Resources Management Plan of the prioritized bodies of water in the hydrographic subzone of the Bogotá´s River”. With the accomplishment of the methodology, it is possible to establish the results of the internship, which include the structuring of technical information regarding the Management Plan of the prioritized water bodies of the Bogotá´s River hydrographic subzone (highlighting the progress in the monitoring components and quality of the water resource, social component and census and hydrology component), the organization of the contractual folders to the ordering process and the consolidation of the administrative traceability of the PORH Bogotá´s River. With the analysis of the results, the conclusions are finally established, of which it is highlighted that social work is, in the author's opinion, the most important factor within the PORH of the Bogotá´s River, because they are the communities that know it, they are occupying and making use of the territory and the resources it provides, so that one can´t pretend to work for a territory if one does not have the support and commitment of the communities that inhabit it. Finally, the recommendations aimed at improving each of the components addressed during the internship within the diagnostic phase Bogotá´s River PORH are presented.