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利用土壤密度分馏分离不同的土壤碳库
JoVE Journal
Environment
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JoVE Journal
Environment
Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools
Please note that all translations are automatically generated.
Click here for the English version.
利用土壤密度分馏分离不同的土壤碳库
DOI:
10.3791/64759-v
•
09:19 min
•
December 16, 2022
•
Derek Pierson*
1,2
,
Kate Lajtha*
1
,
Hayley Peter-Contesse*
1
,
Amy Mayedo*
1
1
Department of Crop and Soil Sciences
,
Oregon State University
,
2
USDA Forest Service
Chapters
00:04
Introduction
01:04
Dissolution of Soil in Sodium Polytungstate (SPT)
02:04
Performing Coarse Soil Fractionation
04:40
Washing and Collection of the Heavy-Fraction Material
05:46
Washing, Collection, and Weighing of the Light-Fraction Material
06:49
Results: Analyzing Soil Carbon Pools After Soil Density Fractionation
08:20
Conclusion
Summary
Automatic Translation
English (Original)
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Automatic Translation
土壤密度分馏将土壤有机质分离到具有不同稳定机制、化学成分和周转时间的不同池中。具有特定密度的聚钨酸钠溶液允许分离游离颗粒有机物和矿物相关有机物,从而产生适合描述土壤对管理和气候变化响应的有机物部分。
Tags
Soil Density Fractionation
Soil Carbon Pools
Soil Carbon Stabilization
Mineral Organic Association
Light Fraction Organic Matter
Heavy Fraction Mineral Components
Soil Carbon Turnover Rates
Soil Carbon Sequestration
SPT Solution
Centrifugation
Soil Dispersion
Soil Aggregates
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