EFFECT OF NATURAL GAP SIZE IN CANOPY COVER ON PHYSICAL AND CHEMICAL CHARACTERISTICS OF SOIL UPPER LAYER IN JAMAND DISTRICT, MAZANDARAN PROVINCE, IRAN

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MIRDAR HARIJANI M.; POURMAJIDIAN M.R.; JALILVAND H.; ZAHEDI AMIRI GH.

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Journal: RESEARCH JOURNAL OF FOREST SCIENCE AND ENGINEERING Year:2011 | Volume:1 | Issue:3 Page(s): 23-33

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Title

EFFECT OF NATURAL GAP SIZE IN CANOPY COVER ON PHYSICAL AND CHEMICAL CHARACTERISTICS OF SOIL UPPER LAYER IN JAMAND DISTRICT, MAZANDARAN PROVINCE, IRAN

Author(s)

MIRDAR HARIJANI M. | POURMAJIDIAN M.R. | JALILVAND H. | ZAHEDI AMIRI GH. | Issue Writer Certificate

Keywords

NATURAL GAPQ2

SOIL CHARACTERISTICSQ2

LEAF LITTERQ2

CONTROL PLOTQ2

JAMANDQ2

Abstract

The opening of gap in the forest canopy cover causes light to shine more forcefully to the forest floor, and it makes changes in organic layers and forest soil. In this research, parcel 18 of the forestry plan in JAMAND district was selected, which was fully callipered and all of the NATURAL GAPs in it were investigated and their effects on forest floor and upper most mineral soil layer properties were studied. In the center of each gap, samples of organic layers (layers L, F, H) were taken from 0.25m2 area and soil samples from 0-15cm depth. In this research gap sizes were studied in 4 classes: 1st level (50-200 m2), 2nd level (200-400 m2), 3rd level (400-600 m2) & 4th level (600-800 m2) and they were analyzed. According to the results achieved, the amount of the percentage of moisture in organic layers (layers L & F) was influenced by the gap size and it had a significant difference at 5% level. Increasing the gap size, the percentage of moisture in these two surface layers was decreased. Organic Carbon (OC) and amount of C:N in the H layer had a significant difference at 5% level, as the highest amount of them was in the first class and the lowest amount was in the second class. Also, the total Nitrogen (N) of soil showed a significant difference at 5% level, as the highest amount of it was observed in the fourth class. Generally in this research, the second class could provide the best condition for decomposing and increasing the rate of nutrient return.

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APA: Copy

MIRDAR HARIJANI, M., POURMAJIDIAN, M.R., JALILVAND, H., & ZAHEDI AMIRI, GH.. (2011). EFFECT OF NATURAL GAP SIZE IN CANOPY COVER ON PHYSICAL AND CHEMICAL CHARACTERISTICS OF SOIL UPPER LAYER IN JAMAND DISTRICT, MAZANDARAN PROVINCE, IRAN. RESEARCH JOURNAL OF FOREST SCIENCE AND ENGINEERING, 1(3), 23-33. SID. https://sid.ir/paper/238628/en

Vancouver: Copy

MIRDAR HARIJANI M., POURMAJIDIAN M.R., JALILVAND H., ZAHEDI AMIRI GH.. EFFECT OF NATURAL GAP SIZE IN CANOPY COVER ON PHYSICAL AND CHEMICAL CHARACTERISTICS OF SOIL UPPER LAYER IN JAMAND DISTRICT, MAZANDARAN PROVINCE, IRAN. RESEARCH JOURNAL OF FOREST SCIENCE AND ENGINEERING[Internet]. 2011;1(3):23-33. Available from: https://sid.ir/paper/238628/en

IEEE: Copy

M. MIRDAR HARIJANI, M.R. POURMAJIDIAN, H. JALILVAND, and GH. ZAHEDI AMIRI, “EFFECT OF NATURAL GAP SIZE IN CANOPY COVER ON PHYSICAL AND CHEMICAL CHARACTERISTICS OF SOIL UPPER LAYER IN JAMAND DISTRICT, MAZANDARAN PROVINCE, IRAN,” RESEARCH JOURNAL OF FOREST SCIENCE AND ENGINEERING, vol. 1, no. 3, pp. 23–33, 2011, [Online]. Available: https://sid.ir/paper/238628/en

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