Soil porosity in physically separated fractions and its role in SOC protection
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- 作者：Gianluca Simonetti ; Ornella Francioso ; Nicola Dal Ferro…
- 关键词：CP MAS 13C NMR ; DRIFT ; Mercury intrusion porosimetry ; MIP ; Pore volume ; Soil aggregate ; Soil porosity ; WSA
- 刊名：Journal of Soils and Sediments
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：17
- 期：1
- 页码：70-84
- 全文大小：
- 刊物类别：Earth and Environmental Science
- 刊物主题：Soil Science & Conservation; Environment, general; Environmental Physics;
- 出版者：Springer Berlin Heidelberg
- ISSN：1614-7480
- 卷排序：17
文摘
PurposeProcesses that lead to soil organic carbon (SOC) protection depend on both soil porosity and structure organization, as well as chemical and biological properties. In particular, the soil micro-nano porosity (<30 μm) regulates microorganism accessibility to the soil pore system and offers surfaces for organic carbon adsorption and intercalation into soil minerals. The aim of this work was to investigate how pore size distribution can selectively protect specific carbon pools in different aggregate size fractions, by considering the effects of long-term application of farmyard manure (FYM) and mineral (Min) fertilization.