کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8912913 | 1639918 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Holocene climate variations in the Altai Mountains and the surrounding areas: A synthesis of pollen records
ترجمه فارسی عنوان
تغییرات اقلیمی هولوسن در کوه های آلتایات و مناطق اطراف آن: تلفیق پرونده های گرده
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کلمات کلیدی
کوههای آلتایی، تغییرات آب و هوایی هولوکسی، گرده، نوسان چندتایی اقیانوس اطلس،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Based on pollen data from 30 sequences reviewed here, we reconstruct the spatial and temporal variations in temperature and in aridity that occurred during the Holocene in the Altai Mountains and the surrounding areas (i.e., the examined area). The synthesized regionally-averaged temperature-index curves from low-elevation regions show that the climate was consistently warming from ~12,000 to ~9000â¯cal. yr BP and has experienced a gradual cooling trend since ~9000â¯cal. yr BP. It means that the Holocene temperature trend in low-elevation regions of the examined area has sensitively responded to variations in the total solar irradiance. The synthesized regionally-averaged aridity-index curve exhibits a persistent wetting trend during the Holocene in low-elevation regions. The deduced Holocene precipitation-index variations suggest that the Holocene wetting trend resulted from a combined effect of temperature decreasing and precipitation increasing. The Holocene precipitation increase seems to be associated with the Holocene AMO-like (i.e., Atlantic centennial oscillations) events in the North Atlantic Ocean. However, the early-Holocene variations of temperature and aridity in high-elevation regions were significantly deviated from the variations in low-elevation regions and this deviation was probably a result of permafrost thawing at higher elevations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Earth-Science Reviews - Volume 185, October 2018, Pages 847-869
Journal: Earth-Science Reviews - Volume 185, October 2018, Pages 847-869
نویسندگان
Dongliang Zhang, Zhaodong Feng,