SURVEY OF EFFECT OF GRAVELLY MULCH IN REDUCTION OF WIND EROSION IN DAGH LANDS CLAYEY -SALTY NON- RENEWABLE WITH BIOLOGICAL METHOD

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AHMADI HASAN; EKHTESASI M.R.

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Journal: Desert Year:2000 | Volume:5 | Issue:2 Page(s): 1-14

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Title

SURVEY OF EFFECT OF GRAVELLY MULCH IN REDUCTION OF WIND EROSION IN DAGH LANDS CLAYEY -SALTY NON- RENEWABLE WITH BIOLOGICAL METHOD

Author(s)

AHMADI HASAN | EKHTESASI M.R. | Issue Writer Certificate

Keywords

DAGH (SEBKHA)Q4

DESERT PAVEMENTQ3

GRAVEL MULCHQ4

WIND EROSION METER INSTRUMENTQ2

WIND TUNNELQ1

HARD PANQ3

Abstract

Salty clayey lands that are dominated sebkha are sensitive to wind erosion. There lands are scattered in desert lands and in Iranian central palteus. Biological methods for their control are impossible because chemical and Physical characterization soils are unfavorable. However, GRAVEL MULCH plan was used. This paint is natural in the desert lands in pavement regions namely Hamada. This research was made with four gravelly coverage density, 0%, 25%, 50%, and 70% on three groups of sensitive lands to wind erosion in Yazd - Ardekan plain. Kind of selected gravels were in sizes such as almond, sand and stone that were provided form mines. Winds with determined speed were produced by WIND EROSION METER INSTRUMENT that is kind of WIND TUNNEL. Much scattered lands with different densities are affected with wind in 10 ms^-1 speed and 20cm height (egual to 76 Km hr^-1 with 10 m height) for 30 minutes. Gathered sediments in determined area (30cm * 100cm) was compared with control units (bare and without mulch). Obtained data were surveyed in the basis of factorial expen.i1ent as CDR with Mstatc programme. Results show significant differences in all of treatments because of effect of mulch due to reduction of wind erosion. There isn't significant difference between almonds gravely mulch and oversize kind as over-size mulches are cheap and available, they are used in applied plans. Comparison between effect of mulch densities between 50% and 75% showed that there was not significant difference and maximum difference was between mentioned densities and 25% and 0% (control). According to research results, oversize gravels (small stones) in sand mines with 50% density are suggested as the most suitable GRAVEL MULCH in lands sensitive to wind erosion. Production of monotonous coverage and survey of marginal effects are cases that in different research plans must be studied.

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APA: Copy

AHMADI, HASAN, & EKHTESASI, M.R.. (2000). SURVEY OF EFFECT OF GRAVELLY MULCH IN REDUCTION OF WIND EROSION IN DAGH LANDS CLAYEY -SALTY NON- RENEWABLE WITH BIOLOGICAL METHOD. DESERT (BIABAN), 5(2), 1-14. SID. https://sid.ir/paper/5279/en

Vancouver: Copy

AHMADI HASAN, EKHTESASI M.R.. SURVEY OF EFFECT OF GRAVELLY MULCH IN REDUCTION OF WIND EROSION IN DAGH LANDS CLAYEY -SALTY NON- RENEWABLE WITH BIOLOGICAL METHOD. DESERT (BIABAN)[Internet]. 2000;5(2):1-14. Available from: https://sid.ir/paper/5279/en

IEEE: Copy

HASAN AHMADI, and M.R. EKHTESASI, “SURVEY OF EFFECT OF GRAVELLY MULCH IN REDUCTION OF WIND EROSION IN DAGH LANDS CLAYEY -SALTY NON- RENEWABLE WITH BIOLOGICAL METHOD,” DESERT (BIABAN), vol. 5, no. 2, pp. 1–14, 2000, [Online]. Available: https://sid.ir/paper/5279/en

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