THE EFFECT OF THRICHODERMA HARZIANUM ON WIND EROSION CONTROL OF AZADEGAN PLAIN SANDY SOIL AT LABORATORY AND WIND TUNNEL

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ARZAGHI F.; FARROKHIAN FIROUZI A.; ENAYATIZAMIR N.; KHALILI MOGHADDAM B.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:2 Page(s): 239-251

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Title

THE EFFECT OF THRICHODERMA HARZIANUM ON WIND EROSION CONTROL OF AZADEGAN PLAIN SANDY SOIL AT LABORATORY AND WIND TUNNEL

Author(s)

ARZAGHI F. | FARROKHIAN FIROUZI A. | ENAYATIZAMIR N. | KHALILI MOGHADDAM B. | Issue Writer Certificate

Keywords

BIOLOGICAL CONSERVATIONQ1

PENETRATION RESISTANCEQ2

SOIL PHYSICAL PROPERTIESQ2

WINDY EROSIONQ2

Abstract

Background and Objectives: Wind is an important erosive force in deserts, where limited cover of vascular plant material offers little soil-surface protection. Erosion and sediment from soil surfaces occurs when wind forces exceed soil threshold friction velocity. Soils with physical or biological crusts usually are more resistant against wind erosion. Filamentous morphology and physiological characteristics of fungal crust leading to soil particles bind to each other and form resistant aggregates causing wind erosion control.Materials and Methods: This study was conducted by the aim of investigating the effect of Trichoderma harzianumon wind erosion control of a sterile sandy soil as factorial in a completely randomized design under two inoculation treatments (inoculated with Trichoderma harzianumand non inoculated), two moisture treatments (80% FC and dry) and three times treatments (15, 30 and 45 days). After passing each time treatment, PENETRATION RESISTANCE, microbial biomass carbon, respiration and some physical properties of soil was measured. The development of fungal hyphae between the particles and the soil aggregates surface was determined using scanning electron microscopy. Finally after doing all measurements, the treatment with maximum PENETRATION RESISTANCE were selected and the sample was prepared for wind tunnel testing.Results: The results showed that by increasing the period of experiment from 15 to 45 days under 80% FC moisture, PENETRATION RESISTANCE from 2.85 to 4.5 kg/cm2, bulk density from 1.49 to 1.55 gr/cm3 increased significantly. Electrical conductivity, microbial biomass carbon and respiration of soil demonstrated increasing trend. However soil pH decreased because of increasing fungus growth and also its acidic metabolites exudates. Scanning electron microscope images showed the well development of fungal hyphae between particles and aggregates surface. The samples with highest PENETRATION RESISTANCE (45 days treatments under 80% FC moisture) were placed in wind tunnel and showed no erosion at speed of 12 meters per second.Conclusion: The present study indicates Trichoderma harzianum can increase soil resistance against wind erosion by development of hyphae and thus bind soil particles together to form larger aggregates. Therefore soil crust can be considered as a useful agent to prevent wind erosion particularly in the deserts with low plants.

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APA: Copy

ARZAGHI, F., FARROKHIAN FIROUZI, A., ENAYATIZAMIR, N., & KHALILI MOGHADDAM, B.. (2015). THE EFFECT OF THRICHODERMA HARZIANUM ON WIND EROSION CONTROL OF AZADEGAN PLAIN SANDY SOIL AT LABORATORY AND WIND TUNNEL. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(2), 239-251. SID. https://sid.ir/paper/209952/en

Vancouver: Copy

ARZAGHI F., FARROKHIAN FIROUZI A., ENAYATIZAMIR N., KHALILI MOGHADDAM B.. THE EFFECT OF THRICHODERMA HARZIANUM ON WIND EROSION CONTROL OF AZADEGAN PLAIN SANDY SOIL AT LABORATORY AND WIND TUNNEL. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(2):239-251. Available from: https://sid.ir/paper/209952/en

IEEE: Copy

F. ARZAGHI, A. FARROKHIAN FIROUZI, N. ENAYATIZAMIR, and B. KHALILI MOGHADDAM, “THE EFFECT OF THRICHODERMA HARZIANUM ON WIND EROSION CONTROL OF AZADEGAN PLAIN SANDY SOIL AT LABORATORY AND WIND TUNNEL,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 2, pp. 239–251, 2015, [Online]. Available: https://sid.ir/paper/209952/en

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