Combining Dendrometric Parameters and Soil Chemical Properties: An Useful Tool for Valorization of Shrubs in Forests

Background: The work was carried out in the arid environment of south-western Algeria using Retama retama (Forssk.) Webb and Berthel. an indicator shrub for forest protection and restoration. Methods: The experiment was conducted during the period 2024-2025 in university center of Naama, in the arid region of Naâma, Algeria, North Africa.The study of dendrometric parameters such as height, circumference was based on inter-plant measurements, height of the shrubs and circumference of Retama plant. The soil chemical quality was examined by NMR spectroscopy magnetic and diffractometer. The statistical data representation was studied by descending hierarchical classification and correlation using R software. Result: A height range of 0.2 to 3 m, a crown circumference range from 0.03 m to 13.8 m and an equidistance between 0.2 m and 19.40 m was observed. This study helped to understand the links between dendrometric parameters such as height, circumference and the chemical quality of soil. The chemical analysis of the soil by X-ray fluorescence spectrometry, XRD “X-ray diffractometer” and NMR “nuclear magnetic resonance”,shows that SiO2 represent 90,83%, Al2O3: 7.45%, CaO:1.02%, Fe2O3:0.29%, Na2O and K2O:0.01%, TiO2: 0.09%. The significant dendrometric results of the retama shrub demonstrate a significant ability to combat erosion and improve soil chemical quality through the addition of nutrients and organic matter from the associated fauna of the retama shrub. Dendrometrics are a valuable tool for sustainable forest management in arid regions, as they link tree characteristics to soil quality and the protection of the forest ecosystem.