کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5114023 1484082 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reconstruction of soil water oxygen isotope values from tree ring cellulose and its implications for paleoclimate studies
ترجمه فارسی عنوان
بازسازی ایزوتوپهای اکسیژن اکتون آب خاک از حلقه درخت سلولز و پیامدهای آن برای مطالعات پائئوسلویت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
چکیده انگلیسی
We present here a rationale for estimation of soil water oxygen isotope values (δsw) from tree ring cellulose oxygen isotope data and examine, for the first time, its (δsw) efficacy as a tool to obtain paleoclimate information. We analyzed pre-dated tree ring cellulose samples collected from a site at Western Himalaya for oxygen isotopes, used similar dataset of overlapping time period from 12 different locations across the world, reconstructed δsw for 1901-2004 CE, compared the data with available observations and examined implications of this technique. Our study shows (a) good agreement in spatial ranges between observed and estimated δsw data suggesting its suitability for a representative parameter, and (b) reconstructed δsw largely depend on soil moisture content modulated by regional evaporation regimes. Considering a growing importance of measurement of recycled soil moisture and its ensuing role in rainfall amount, a method to reconstruct soil moisture isotope as presented in this work will enable application of land hydrological models to the past.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary International - Volume 425, 15 December 2016, Pages 387-398
نویسندگان
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