Investigation on the relationship between plant measurements of Astragalus brevidens Freyn & Sinteyn and soil properties (Case study: Asilme rangelands of Darreh gaz)

Moradi, Reza; Niknahad-Gharmakher, Hamid; Forouzeh, Mohamad Rahim

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Volume 12, Issue 24 (9-2024)

PEC 2024, 12(24): 163-175

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Investigation on the relationship between plant measurements of Astragalus brevidens Freyn & Sinteyn and soil properties (Case study: Asilme rangelands of Darreh gaz)

Reza Moradi¹

, Hamid Niknahad-Gharmakher ^*

, Mohamad Rahim Forouzeh¹

1- Department of Rangeland Management, Faculty of Rangeland and Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Department of Rangeland Management, Faculty of Rangeland and Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran, Department of Rangeland Management, Faculty of Rangeland and Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran , niknahad@gau.ac.ir

Abstract: (1128 Views)

Astragalus brevidens belongs to the Fabaceae family which has high palatability and a lot of forage production. The aim of present study was to investigate the relationship between production, frequency, density and cover percentage of A. brevidens with the soil physicochemical properties. After the field survey, random-systematic sampling was done in three areas with high, medium and low A. brevidens cover. In each area, 2 transects of 100 meters were considered in the direction of the slope and perpendicular to the direction of the slope, and in each transect, 10 plots (2m²) were established with a distance of 10 meters from each other and data on frequency, density and cover percentage were recorded. Plant production of aerial parts was estimated via cutting and weighing method. In each transect (beginning, middle and end of each transect), three soil samples were taken from two depths of 0 to 10 and 10 to 30 cm. Once in the laboratory, some soil physical and chemical properties such as texture, bulk density, salinity, acidity, organic carbon percentage, total nitrogen percentage, amount of adsorbable phosphorus and exchangeable cations were measured. Data were analyzed by One-way analysis of variance and mean comparisons were made by the Tukey test using SPSS₁₈ software. Step by step multiple regression analysis was used to predict the estimation model of A. brevidens measurements with soil properties. The results demonstrated that A. brevidens with canopy cover percentage of 2.53 to 16.65% and dry forrage production of 41.7 to 37.40 gr/m², grows in sandy clay loam soils with electrical conductivity less than 1.81 dS/m and acidity of 7.82-8.10. Moreover, soil bulk density and clay percentage of soil texture had the most influence on the measurements of A. brevidens (p< o. o5). This species is not s Preparation of soil map of vegetation types of rangelands and investigate the relationship between soil properties and dominant plant species to correctly locate plant species in the rangeland improvement operation is suggested.uitable for use in improvement of rangelands with heavy texture and salty soil.

Article number: 11

Keywords: Astragalus brevidens, Production, Frequency, Density, Cover percentage

Full-Text [PDF 738 kb] (220 Downloads)

Type of Study: Research | Subject: General
Received: 2023/11/7 | Accepted: 2024/04/23 | Published: 2024/10/7

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Moradi R, Niknahad-Gharmakher H, Forouzeh M R. Investigation on the relationship between plant measurements of Astragalus brevidens Freyn & Sinteyn and soil properties (Case study: Asilme rangelands of Darreh gaz). PEC 2024; 12 (24) : 11
URL: http://pec.gonbad.ac.ir/article-1-947-en.html

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