CONSIDERING SOIL DIVERSITY INDEX AND SOIL-LANDSCAPE EVOLUTION RELATIONSHIP IN THE ARID REGION OF BAM, SOUTHEAST IRAN

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ABBASZADEH AFSHAR F.; AYOUBI SH.; JAFARI A.; KHADEMI H.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:2 Page(s): 71-91

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Title

CONSIDERING SOIL DIVERSITY INDEX AND SOIL-LANDSCAPE EVOLUTION RELATIONSHIP IN THE ARID REGION OF BAM, SOUTHEAST IRAN

Author(s)

ABBASZADEH AFSHAR F. | AYOUBI SH. | JAFARI A. | KHADEMI H. | Issue Writer Certificate

Keywords

PEDODIVERSITYQ2

LANDSCAPEQ2

SOIL DEVELOPMENTQ2

GEOMORPHIC SURFACESQ2

Abstract

Background and Objectives: Knowledge about soil spatial variation in terms of measured PEDODIVERSITY offers the possibility to estimate the quality and variance within a soil map.Diversity indices and abundance distribution models are statistical tools, which ecologists have applied for decades for analyzing the intrinsic regularities of various ecological entities. In this study, relationships among soils evolution, LANDSCAPE and geomorphic surface and PEDODIVERSITY index and PEDODIVERSITY index–area relationships were investigated in a part of Bam district in Kerman province.Materials and Methods: The studied area is located in the south-east of Iran, between 58o4’7” to 58o28’8” E longitudes and 28o52’1” to 29o9’9” N latitudes. The major LANDSCAPEs included alluvial fans, coalescing alluvial fans (bajada), playa, mountain and hills. The soil moisture and temperature regimes of this area, according to Soil Survey Staff (2010), were Aridic and Hyperthermic, respectively. PEDODIVERSITY index was computed at different taxonomy hierarchical levels (from order to family in Soil Taxonomy classification) and geomorphic hierarchical levels (landscape, landform, lithology and geomorphic surface) using appropriate indices including abundance, the Shannon diversity and O’ Neill indexes.Results: The soils in the study area were classified according to Soil Survey Staff (2010), in two soil orders of Entisols and Aridisols and eight great groups including: Calcigypsids, Haplosalids, Torriorthents, Haplocambids, Haplogypsids, Haplocalcids, Calciargids and Petrocalcids. The results of study indicated that diversity indices such as Shannon and O' Neill indices of the level of classification hierarchy increased because species richness has increased dramatically. Also diversity and richness indices with time from the old bajada to the younger bajada increased. That indicated the age of GEOMORPHIC SURFACES affected SOIL DEVELOPMENT and soil diversity in the study area increased. Results also showed that pedorichness increases with the area of GEOMORPHIC SURFACES. A logarithmic function gave a good fit for sample areas Conclusion: The results of this study showed that all the processes involved in the evolution of landforms, affected soils development directly or indirectly. Study of soils in different landforms indicated that soil formation and their properties are affected by geomorphic position.The results of diversity indices showed the level of classification and geomorphic hierarchy increased. Our results showed that increasing entropy versus time indicates the realm of divergent pathway of pedogenesis in studied region. Increase soil diversity and richness based on geomorphic and classification hierarchy confirmed that the studied soils had a nonlinear dynamic system.

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APA: Copy

ABBASZADEH AFSHAR, F., AYOUBI, SH., JAFARI, A., & KHADEMI, H.. (2015). CONSIDERING SOIL DIVERSITY INDEX AND SOIL-LANDSCAPE EVOLUTION RELATIONSHIP IN THE ARID REGION OF BAM, SOUTHEAST IRAN. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(2), 71-91. SID. https://sid.ir/paper/209946/en

Vancouver: Copy

ABBASZADEH AFSHAR F., AYOUBI SH., JAFARI A., KHADEMI H.. CONSIDERING SOIL DIVERSITY INDEX AND SOIL-LANDSCAPE EVOLUTION RELATIONSHIP IN THE ARID REGION OF BAM, SOUTHEAST IRAN. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(2):71-91. Available from: https://sid.ir/paper/209946/en

IEEE: Copy

F. ABBASZADEH AFSHAR, SH. AYOUBI, A. JAFARI, and H. KHADEMI, “CONSIDERING SOIL DIVERSITY INDEX AND SOIL-LANDSCAPE EVOLUTION RELATIONSHIP IN THE ARID REGION OF BAM, SOUTHEAST IRAN,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 2, pp. 71–91, 2015, [Online]. Available: https://sid.ir/paper/209946/en

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