DOI: https://doi.org/10.36719/2663-4619/113/223-227
Ali Jafarov
Lankaran State University
PhD in Agricultural Sciences
https://orcid.org/0000-0002-3698-7711
alicafarov1959@mail.ru
Turan İsmailli
Lankaran State University
Master student
https://orcid.org/0009-0005-8831-4251
ismayillituran99@gmail.com
Spectrophotometric Properties of Salyan Plain Soils
Abstract
The presented article provides information on spectral reflectance. The reflection of light by soil depends on a number of chemical elements and physical properties of soils. However, a multiparameter analysis of the simultaneous influence of these factors on the spectral coefficients of soils has not yet been carried out. In general, the spectral curves of all soil types are subject to changes in certain parts of electromagnetic waves depending on the parent rocks, the amount of humus and the ratio of its forms, mechanical composition, minerals, carbonates, iron oxides, etc. This confirms the importance of studying spectrophotometric studies in soils. The article presents the results of studies of the spectrophotometric properties of Salyan plain soils depending on humus, carbonates, humidity, density, salts, etc. These indicators significantly affect the integral reflectance of soils. Thus, the greater the amount of humus in soils, the lower the spectral reflectance, and the greater the amount of carbonates and salts, the higher the spectral reflectance.
The dependence of the intensity of soil reflectance coefficients and the spectral composition on moisture content and changes in the size of their fractions indicate that it is necessary to study the color and spectral reflectance of soils within certain conditions.
In most of the works carried out in this direction, it is recommended to conduct the color and spectral reflectance of soils on air-dried soil samples with sizes between 1.0-0.01 mm.
Studying the regularity of the dependence of spectrophotometric properties on various factors allows us to eliminate some shortcomings. To increase the effectiveness of the work being done, it is necessary to quantitatively assess the response of reflection coefficients to influencing factors.
Determining the regularity of the optical properties of soils leads to the study of new information about the soil, which can be used as an additional factor in soil research.
Keywords: spectral and integrated coefficients, soil, carbonates, humus, sizes of particles