ABUNDANCE, VERTICAL DISTRIBUTION AND SEASONAL CHANGES IN EARTHWORM POPULATIONS OF OAK-HOMBEAM, HOMBEAM AND BEECH FORESTS IN NEKA, CASPIAN FORESTS, IRAN

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RAHMANI RAMIN; SALEH RASTIN N.

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Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2000 | Volume:53 | Issue:1 Page(s): 37-52

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Title

ABUNDANCE, VERTICAL DISTRIBUTION AND SEASONAL CHANGES IN EARTHWORM POPULATIONS OF OAK-HOMBEAM, HOMBEAM AND BEECH FORESTS IN NEKA, CASPIAN FORESTS, IRAN

Author(s)

RAHMANI RAMIN | SALEH RASTIN N. | Issue Writer Certificate

Keywords

FORESTQ2

EARTHWORMQ2

BIOMASSQ4

OAKQ4

HOMBEAMQ2

BEECHQ2

Abstract

Earthworms are the most important members of soil detritivores in temperate FORESTs. Soil productivity and plait growth are significantly affected by biological activities of EARTHWORMs. Density and BIOMASS of EARTHWORMs represent the biological activity and quality of given soils.Considering the note above, investigation on the EARTHWORM's population and its relationship with vegetation and soil is a necessity for determining the ecological potential of FOREST stands.Density and BIOMASS of EARTHWORMs were studied in OAK-Hombeam, HOMBEAM and BEECH FORESTs of Neka from Nov. 1996 to Dec. 1997. In each FOREST, 20 circular soil samples of 81cm2 to the depth of 30cm were taken every month. Each sample was divided into 3 subsamples including 0-10, 10-20 and 20-30cm layers, Larger EARTHWORMs were collected by hand Sorting and the smaller ones extracted by using Berlese funnel, then oven-dried at 60°C and weighed with 0.0001gr precision. Texture, bulk density, C:N and pH of soil were measured.This study showed that the density and BIOMASS of EARTHWORMs of the HOMBEAM FOREST are larger than those of the OAK-Hobbema and BEECH FORESTs, but these conditions are approximately equal in the OAK-Hobbema and BEECH FORESTs. The maximum number and BIOMASS of EARTHWORMs are found in 0-10cm soil depth. The number and BIOMASS of EARTHWORMs increased in autumn and spring and decreased in winter and summer.

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APA: Copy

RAHMANI, RAMIN, & SALEH RASTIN, N.. (2000). ABUNDANCE, VERTICAL DISTRIBUTION AND SEASONAL CHANGES IN EARTHWORM POPULATIONS OF OAK-HOMBEAM, HOMBEAM AND BEECH FORESTS IN NEKA, CASPIAN FORESTS, IRAN. IRANIAN JOURNAL OF NATURAL RESOURCES, 53(1), 37-52. SID. https://sid.ir/paper/23103/en

Vancouver: Copy

RAHMANI RAMIN, SALEH RASTIN N.. ABUNDANCE, VERTICAL DISTRIBUTION AND SEASONAL CHANGES IN EARTHWORM POPULATIONS OF OAK-HOMBEAM, HOMBEAM AND BEECH FORESTS IN NEKA, CASPIAN FORESTS, IRAN. IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2000;53(1):37-52. Available from: https://sid.ir/paper/23103/en

IEEE: Copy

RAMIN RAHMANI, and N. SALEH RASTIN, “ABUNDANCE, VERTICAL DISTRIBUTION AND SEASONAL CHANGES IN EARTHWORM POPULATIONS OF OAK-HOMBEAM, HOMBEAM AND BEECH FORESTS IN NEKA, CASPIAN FORESTS, IRAN,” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 53, no. 1, pp. 37–52, 2000, [Online]. Available: https://sid.ir/paper/23103/en

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