IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2009  > Vol6 No.2
Micromorphological evidences of climatic change in Yazd region, Iran
Mehrjardi, Ruhollah Taghizadeh; Mahmoodi, Shahla; Heidari, Ahmad; Akbarzadeh, Ali
Corresponding AuthorMehrjardi, RT
2009-06
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume6Issue:2Pages:162–172
AbstractThe fact of, present is the key of the past, will help us to use paleosols properties as indicators of the ecological characteristics of past time, particularly the paleoclimate. In this respect the micromorphological properties showed to be a very good indicator. Therefore, for investigating of climate change in Ardakan-Yazd plain, Central Iran 9 pedons were digged and described. Yazd has an arid climate with less than 100 mm annual precipitation and more than 22A degrees C mean annual temperature (Aridic-hyper thermic soil moisture and temperature regions, respectively). Based on the morphological and physicochemical analysis Arglic, Calcic and Gypsic diagnostic horizons have been distinguished in these soils. Thin section studied showed that the illuviated form of clay includes, infillings on channel, coating on pendant, on nodules and on grains, at lower depths and also juxtaposed calcite needles on void argillan at upper part of the profiles. Mineralogical result showed fine clay in arglic horizon, too. Considering depth and forms of these pedofeatures, we concluded that, the observed illuviated clays at lower depth must be the result of the more humid climate of the past, where the carbonates have been removed completely as pendant, nodules or coating to considerable depth, following processes, clay has been dispersed and also trans located to these depths. In contrast to these features, the juxtaposed needle calcite at the shallower depth is probably the result of drier climate of today.
KeywordMicromorphological Indicators Climate Change Arglic Horizon Yazd Region
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6018
CollectionJournal of Mountain Science_Journal of Mountain Science-2009_Vol6 No.2
Recommended Citation
GB/T 7714
Mehrjardi, Ruhollah Taghizadeh,Mahmoodi, Shahla,Heidari, Ahmad,et al. Micromorphological evidences of climatic change in Yazd region, Iran[J]. JOURNAL OF MOUNTAIN SCIENCE,2009,6(2):162–172.
APA Mehrjardi, Ruhollah Taghizadeh,Mahmoodi, Shahla,Heidari, Ahmad,&Akbarzadeh, Ali.(2009).Micromorphological evidences of climatic change in Yazd region, Iran.JOURNAL OF MOUNTAIN SCIENCE,6(2),162–172.
MLA Mehrjardi, Ruhollah Taghizadeh,et al."Micromorphological evidences of climatic change in Yazd region, Iran".JOURNAL OF MOUNTAIN SCIENCE 6.2(2009):162–172.
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