Strategies used by soil biota to overcome soil organic matter stability — why is dead organic matter left over in the soil?

Geoderma ◽  
2005 ◽  
Vol 128 (1-2) ◽  
pp. 167-176 ◽  
Author(s):  
Klemens Ekschmitt ◽  
Manqiang Liu ◽  
Silke Vetter ◽  
Oliver Fox ◽  
Volkmar Wolters
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Biota ◽  
Dead Organic Matter

Romul_Hum model of soil organic matter formation coupled with soil biota activity. I. Problem formulation, model description, and testing

2017 ◽  
Vol 345 ◽  
pp. 113-124 ◽  
Author(s):  
Alexander Komarov ◽  
Oleg Chertov ◽  
Sergey Bykhovets ◽  
Cindy Shaw ◽  
Marina Nadporozhskaya ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Problem Formulation ◽  
Soil Biota ◽  
Model Description ◽  
Soil Organic Matter Formation

Romul_Hum—A model of soil organic matter formation coupling with soil biota activity. II. Parameterisation of the soil food web biota activity

2017 ◽  
Vol 345 ◽  
pp. 125-139 ◽  
Author(s):  
Oleg Chertov ◽  
Alexander Komarov ◽  
Cindy Shaw ◽  
Sergey Bykhovets ◽  
Pavel Frolov ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Food Web ◽  
Soil Biota ◽  
Soil Food Web ◽  
Soil Organic Matter Formation

scholarly journals Applications of physical methods in estimation of soil biota and soil organic matter

2020 ◽  
Vol 2 (3) ◽  
pp. 165-175
Author(s):  
Chagovetc Sergei ◽  
Shenglei Fu
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Biota ◽  
Physical Methods

Romul_Hum model of soil organic matter formation coupled with soil biota activity. III. Parameterisation of earthworm activity

2017 ◽  
Vol 345 ◽  
pp. 140-149 ◽  
Author(s):  
Oleg Chertov ◽  
Cindy Shaw ◽  
Maxim Shashkov ◽  
Alexander Komarov ◽  
Sergey Bykhovets ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Biota ◽  
Soil Organic Matter Formation ◽  
Earthworm Activity

Characterizing soil biota in Canadian agroecosystems: State of knowledge in relation to soil organic matter

2003 ◽  
Vol 83 (Special Issue) ◽  
pp. 245-257 ◽  
Author(s):  
C. A. Fox
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Functional Role ◽  
Soil Biota ◽  
Soil Organisms ◽  
Knowledge Gaps ◽  
Soil Biodiversity ◽  
Functional Roles ◽  
Soil Organic Matter Dynamics ◽  
Organic Matter Dynamics

Organic residues resulting from crop and animal production either become incorporated in the soil or remain on the surface and, thus, provide much of the nutrient and energy sources for many soil organisms. Characterizing the response of soil biota to these organic materials is a challenging undertaking due to the complexity of the soil ecosystem with respect to the magnitude of biodiversity involved, the possibilities for interrelationships with biochemical and biophysical processes, and the immense range of scale of observation from particle, through to aggregate, field, landscape and regional levels. The objectives of this paper were to review the available research pertaining to Canadian agroecosystems, which characterize the response of soil biota to soil organic matter dynamics, and to identify the issues, challenges and knowledge gaps. The response by soil organisms is discussed from two approaches: (1) their state of occurrence in terms of population response to soil organic matter as a nutrient and carbon/energy source, and (2) the extent of their influence in contributing to organic matter dynamics, that is, assessing their functional role. For the most part, Canadian research has emphasized comparative studies based on population responses by broad soil biota groups to soil organic matter additions or losses as an outcome of undertaking various agronomic practices. Studies that evaluate the extent of contributions by soil biota to soil organic matter dynamics are few, and rare at the species level. For Canadian agroecosystems, there is currently a great need for research initiatives that address the immense knowledge gaps that exist in relation to (a) identifying the specific contributions to soil organic matter processes and interactions of soil biota both at species and community level, (b) predicting outcomes of the contributions of soil biota groups in regulating or controlling soil organic matter processes both spatially and temporally across landscapes, and (c) assessing the risk to soil biodiversity in various agroecosystems in being able to sustain these functional roles. Key words: Soil biota, functional role, soil organic matter, agroecosystems, ecosystem services

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