Similarity index between irrigation water and soil saturation extract in the experimental field of Yachay University, Ecuador

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Carrera-Villacrés, D.V.^1,2 ; Sánchez-Gómez, V.P.^1 ; Portilla-Bravo, O.A.^1 ; Bolanos-Guerrón, D.R.^1

Universidad de Las Fuerzas Armadas ESPE, Departamento de Ciencias de la Tierra y Construcción, Carrera de Ingenieria Geográfica y Del Medio Ambiente, Grupo de Investigación en Contaminación Ambiental (GICA), Sangolqui, Pichincha, Ecuador^1

Universidad Central Del Ecuador, Facultad de Ingenieria Geologia Minas Petróleo y Ambiental (FIGEMPA), Carrera de Ingenieria Ambiental. Quito, Pichincha, Ecuador^2

关键词: Correlation models;    Electrical conductivity;    Irrigation waters;    Mathematical correlation;    Physicochemical parameters;    Saturation point;    Similarity indices;    Total dissolved salts;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012007/pdf
DOI  :  10.1088/1755-1315/82/1/012007

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Soil monitoring is a job that demands a lot of time and money. therefore, measuring the same parameters in the water becomes simple because it can be done in situ. The objective of this work was to find a similarity index for the validation of mathematical correlation models based on physicochemical parameters to verify if there is a balance between irrigation water and soil saturation extract in the experimental field Yachay that is known as the city of knowledge that is located in Imbabura province, Ecuador, for which, the sampling of water was carried out in two representative periods (dry and rainy). Sampling of 10 soil profiles was also performed, covering the total area; these samples were obtained results of Electrical Conductivity (EC), pH and total dissolved salts (TDS). With correlation models between soils and water, it is possible to predict concentrations of elements in the irrigation water. It was concluded that there is a balance between soil and water, so that the salts present in the soil are highly soluble, in addition, there is a high probability that the elements in the irrigation water are in the soil. In sample water, the same concentrations were found in the soil, at their saturation point, and very close to the field capacity.