کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5769896 1629196 2017 8 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Soil sampling approaches in Mediterranean agro-ecosystems. Influence on soil organic carbon stocks
ترجمه فارسی عنوان
نمونه برداری از خاک در اکوسیستم های کشاورزی مدرن. تأثیر روی ذخایر کربن آلی خاک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


- To homogenize and standardize sampling techniques is needed.
- SOC stocks were quantified by entire soil profile and by soil control sections.
- Higher SOC stocks were shown when sampling by soil control sections.
- The entire soil profile approach is to be preferred to calculate SOC stocks.
- Soil control sections may be preferred for monitoring and management purposes.

Studies on the quantities and distribution of soil organic carbon stocks (SOC-S) can help to fill the knowledge gaps in estimating the amount of carbon stored in soils. However, one of the problems of soil organic carbon (SOC) is the high variability in space and time. Over the years, many researchers have studied the soil mainly in two different ways: by pedogenic horizons in entire soil profiles (ESP) or by soil control sections (SCS) with different thicknesses along the profile, and this causes uncertainty in SOC and SOC-S evaluation and assessment.This study analyzed the differences in the SOC-S in northeastern Sardinia (Italy) in Cambisols, following two soil sampling approaches, ESP by pedogenic horizons and SCS (25 cm thick) on these selected land uses: tilled vineyards, no-till grassed vineyards, and former vineyards naturally re-vegetated after abandonment.Average data on total SOC-S (T-SOC-S) estimations were 61.5 Mg ha− 1 and 67.3 Mg ha− 1 for ESP and SCS respectively, indicating significantly higher estimates of T-SOC-S when sampling by SCS. Consequently, the ESP approach is recommended to evaluate and certify SOC-S, while SCS may be preferred for monitoring and soil management interpretation purposes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 158, November 2017, Pages 113-120
نویسندگان
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