CONTRIBUTION OF CLAY AND ORGANIC MATTER TO CATION-EXCHANGE CAPACITY OF CHERNOZEMIC SOILS
نویسندگان
چکیده
منابع مشابه
morphology, geochemistry, mineralogy, and micromorphology of soils of hormozgan province in relation to parent materials
ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...
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15 صفحه اولBlack Carbon Increases Cation Exchange Capacity in Soils
Black Carbon (BC) may significantly affect nutrient retention and play a key role in a wide range of biogeochemical processes in soils, especially for nutrient cycling. Anthrosols from the Brazilian Amazon (ages between 600 and 8700 yr BP) with high contents of biomassderived BC had greater potential cation exchange capacity (CECmeasured at pH 7) per unit organic C than adjacent soils with low ...
متن کامل'vermiculite' Determination on Whole Soils by Cation Exchange Capacity Methods*
-The proposed method is a modification of one by Alexiades and Jackson (1965). Calcium exchange capacity (CaEC) and potassium exchange capacity (KEC) are determined, after removal of organic matter and free iron oxides, by saturating the exchange complex with centrifuge washings of pH 7 acetate solutions of Ca or K, respectively. Excess salt in solutions remaining in contact with the soil after...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 1972
ISSN: 0008-4271,1918-1841
DOI: 10.4141/cjss72-015