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Information Journal Paper

Title

Evaluation of physical and biological soil quality using spectroscopy in agricultural lands of Zanjan province

Pages

  45-61

Abstract

 Developing a precise and rapid method for assessing the impact of farming operations on soil quality is important for sustainable resource management and monitoring management approaches in agricultural ecosystems. The objective of this study was to evaluate the efficiency of spectroscopy as a rapid and quantitative approach for monitoring physical and biological soil quality under agricultural management in Zanjan province. 77 soil samples were collected from the depth of 0-20 cm under irrigated and rain-fed agriculture. Important physical and biological properties, affecting soil quality in this province, were measured using standard methods. Then, soil Spectral data were determined in VIS-NIR region and spectral models were calculated using partial least square regression. The average reflectance of soil spectra from 450 to 2450 nm, were significantly different (p<0. 05) between rain-fed and irrigated land uses. Moreover, land use type had a significant impact on most physical and biological properties, measured in this study. Spectral models with excellent accuracy(RPD>2. 5 and R 2 >0. 8) were noted for soil microbial respiration, clay content and soil organic content. The models with good accuracy (20. 76) for microbial carbon biomass, aggregate stability, sand content and with moderate accuracy (1. 50. 65) for bulk density, hydraulic conductivity and silt content were obtained. However, sorptivity was not estimated with appropriate accuracy using spectral models. The effect of management operations under irrigated and rain-fed land use was detectable using soil reflectance spectral signature, and Spectral data showed an overall good ability for evaluating physical and biological indicators of soil quality. The results of this study indicate that spectroscopic technique along with Multivariate analysis, as a practical, rapid, low cost and quantitative approach, can be used to evaluate physical and biological soil quality under agricultural management systems in Zanjan Province.

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    APA: Copy

    Askari, Mohammad Sadegh, Rostamkhani, Golnaz, AMANIFAR, SETAREH, & Khoshzaman, Toraj. (2020). Evaluation of physical and biological soil quality using spectroscopy in agricultural lands of Zanjan province. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 10(1 ), 45-61. SID. https://sid.ir/paper/412931/en

    Vancouver: Copy

    Askari Mohammad Sadegh, Rostamkhani Golnaz, AMANIFAR SETAREH, Khoshzaman Toraj. Evaluation of physical and biological soil quality using spectroscopy in agricultural lands of Zanjan province. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2020;10(1 ):45-61. Available from: https://sid.ir/paper/412931/en

    IEEE: Copy

    Mohammad Sadegh Askari, Golnaz Rostamkhani, SETAREH AMANIFAR, and Toraj Khoshzaman, “Evaluation of physical and biological soil quality using spectroscopy in agricultural lands of Zanjan province,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 10, no. 1 , pp. 45–61, 2020, [Online]. Available: https://sid.ir/paper/412931/en

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