Use of Mid-Infrared Diffuse Reflectance to Assess the Effects of Soil Management on Soil Quality in Tropical Hill Slope Agro Eco-Systems

Authored by: Bunjirtluk Jintaridth , Peter Motavalli

Agricultural Impacts of Climate Change

Print publication date:  December  2019
Online publication date:  November  2019

Print ISBN: 9780367345235
eBook ISBN: 9780429326349
Adobe ISBN:


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Soil organic matter (SOM) is one of the most important components in soil because it affects many soil functions such as nutrient cycles, water movement, thermal properties, and the fate of chemical use for soil management (Carter, 2002). The assessment of changes in SOM is a key issue for soil quality. Soil organic carbon consists of humic and non-humic substances, which are formed by the decomposition of natural organic matter. Humic substances are powerful complexing and chelating entities whose sorption characteristics depend on their chemical composition. They contribute significantly to the chemical, physical, and biological properties of soil (Garcia et al., 1992; Chefetz et al., 1998; Varanini and Pinton, 1995). Due to the relatively slow biodegradation rate of some components of SOM, their influence on soil properties and performance lasts over a long time.

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