Organic matter and soil tilth in arable farming: management makes a difference within 5-6 years. Agric. Ecosyst. Environ 2007; 122:157-172.Per Schjnning,Lars J.Munkhlm,SusanneElmholt. Organic matter and soil tilth in arable farming:Management makes a difference within 5-6 years[J]....
particularly in deeper soil layers1. Knowledge on processes involved in the formation of mineral-associated organic matter (MOM) has been identified as key in understanding soil carbon sequestration and climate change mitigation2. Two general pathways of MOM formation have been advocated, either the s...
Organic carbon concentration of soil organic matter The concentration of organic carbon of C3 cultivated soil in the plough horizon (0–20 cm soil depth) is 1.3%, and for C4 cultivated soil 1.2% (Fig. 1A). With increasing soil depth organic carbon concentrations decrease for C3 (0.8% at 20...
Soil organic matter (SOM) is accumulated, decaying debris mainly of plant origin. The plant material that enters the soil can be in a dissolved or particulate form. Dissolved inputs can be leaf and needle litter leachates, root exudates and rhizodeposits (Sokol et al.2018); particulate plant ...
MatterLong-Term Soil WarmingLong-term soil warming can decrease soil organic matter (SOM), resulting in self-reinforcing feedback to the global climate system. We investigated additional consequences of SOM reduction for soil water holding capacity (WHC) and soil thermal and hydrological buffering. ...
Results of organic matter fractionation and qualitative analysis of organic substances amended with C14-tagged oat roots and incubated under aerobic and an
Soil organic carbon (SOC) plays a vital role in maintaining or enhancing soil fertility and quality of paddy field, but there is still limited information about how SOC mineralization responds to different tillage managements under the double-cropping rice (Oryza sativa L.) system in southern of...
is called respiration. During the composting process from green waste to mature soil organic matter, more than half of the carbon it contains is released into the air as CO2, reducing the available carbon in the soil. This process is still in progress when compost is added to the soil. ...
Organic layer prevents surface runoff and soil erosion Organic matter is like a sponge海绵and hold large amounts of water for plant use Organic matter mulch reduces water evaporation and acts as a soil temperature buffer (cooler in daytime and warmer at night) Microbes Litter Soil Organic M...
Changes in tropical land use have profound effects on soil organic matter (SOM) status. It has been suggested that alterations in the different fractions of SOM are more effective in indicating changes in soil use than total soil organic matter content. The main objective of this study was to...