کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4458584 1620962 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An evaluation of acid deposition on cation leaching and weathering rates of an Andosol and a Cambisol
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
An evaluation of acid deposition on cation leaching and weathering rates of an Andosol and a Cambisol
چکیده انگلیسی

An evaluation of the response of an Andosol and a Cambisol to acid deposition and weathering rates was studied by using a controlled laboratory leaching experiment. Both soils where derived from mafic parent material, a Histic Andosol from Western Iceland and a Cambisol from North East Scotland. De-ionized water and water acidified with H2SO4 (pH 3) was leached through reconstructed soil columns to simulate 34 years of precipitation.Acidic input increased cation leaching and weathering rates in both soil types and reduced pH levels. The Andosol proved generally to have higher weathering rates, leaching potential, ion exchange and acid-buffering capacity as well as maintaining a relatively steady pH despite intense acidic input. This was due to differences in parent material and mineral composition. The Andosol was developed from basaltic volcanic tephra, which had higher dissolution rates due to its amorphous mineral structures. The Cambisol was developed from gabbro with more stable mineral structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geochemical Exploration - Volume 88, Issues 1–3, January–March 2006, Pages 279–283
نویسندگان
, ,