ROLE OF LICHEN COVERS IN CONSERVING LOESS-DERIVED SOILS IN NORTHERN GOLESTAN PROVINCE: PHYSICO-CHEMICAL AND MICROMORPHOLOGICAL APPROACH

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AJAMI M.; KHORMALI F.

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Paper Information

Journal: Journal of Water and Soil Science Year:2011 | Volume:15 | Issue:57 Page(s): 91-100

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Title

ROLE OF LICHEN COVERS IN CONSERVING LOESS-DERIVED SOILS IN NORTHERN GOLESTAN PROVINCE: PHYSICO-CHEMICAL AND MICROMORPHOLOGICAL APPROACH

Author(s)

AJAMI M. | KHORMALI F. | Issue Writer Certificate

Keywords

LICHENQ3

AGGREGATE STABILITYQ2

SOIL CONSERVATIONQ2

MICROMORPHOLOGYQ2

LOESSQ2

Abstract

Biological soil covers such as LICHENs have critical roles in soil stability and prevention of erosion. In order to study the effect of LICHEN biological covers on AGGREGATE STABILITY and SOIL CONSERVATION, LOESS hills covered with LICHEN and uncovered ones were selected in Northern Golestan Province. Five samples were taken from the depth 0 to 5 cm of both two areas for physico-chemical analyses. The undisturbed soil samples were taken for micromorphological studies, too. Analyses of soils revealed that soil organic carbon content increased markedly, compared to uncovered soils. Mean weight diameter also increased about three folds in soils covered with LICHEN. Fungal hyphae and polysaccharides excretions bind soil particles together and increase size of aggregates. Micromorphological study of thin sections showed that uncovered soils had a weak and massive structure, but soils covered with LICHEN had a crumb granular and also well -separated angular block and higher proportion of voids. Due to the effect of LICHEN on upward movement of calcium carbonate, crystallitic b-fabric appeared in the surface layer of covered soils and speckled b-fabric underneath. Excremental pedofeatures are the most common pedofeatures in the covered soils.

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APA: Copy

AJAMI, M., & KHORMALI, F.. (2011). ROLE OF LICHEN COVERS IN CONSERVING LOESS-DERIVED SOILS IN NORTHERN GOLESTAN PROVINCE: PHYSICO-CHEMICAL AND MICROMORPHOLOGICAL APPROACH. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 15(57), 91-100. SID. https://sid.ir/paper/15161/en

Vancouver: Copy

AJAMI M., KHORMALI F.. ROLE OF LICHEN COVERS IN CONSERVING LOESS-DERIVED SOILS IN NORTHERN GOLESTAN PROVINCE: PHYSICO-CHEMICAL AND MICROMORPHOLOGICAL APPROACH. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2011;15(57):91-100. Available from: https://sid.ir/paper/15161/en

IEEE: Copy

M. AJAMI, and F. KHORMALI, “ROLE OF LICHEN COVERS IN CONSERVING LOESS-DERIVED SOILS IN NORTHERN GOLESTAN PROVINCE: PHYSICO-CHEMICAL AND MICROMORPHOLOGICAL APPROACH,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 15, no. 57, pp. 91–100, 2011, [Online]. Available: https://sid.ir/paper/15161/en

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