Determinación de Fracción de Carbono en Suelos de bajo Bosque y Pasto
Varations in management practices and uses of land alter the contribution of carbon, as well as the dynamics and equilibrium level of organic soil carbon. The long-term changes with the total organic carbon produced by these changes could be predicted with the short-term varations of the most sensit...
Saved in:
| Main Author: | |
|---|---|
| Format: | bachelorThesis |
| Language: | spa |
| Published: |
2020
|
| Subjects: | |
| Online Access: | http://dspace.unach.edu.ec/handle/51000/6896 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Add Tag | Summary: | Varations in management practices and uses of land alter the contribution of carbon, as well as the dynamics and equilibrium level of organic soil carbon. The long-term changes with the total organic carbon produced by these changes could be predicted with the short-term varations of the most sensitive organic carbon fractions. The objective of this research was to evaluate the impact of different types of vegetation (forest and grass) on organic carbon fractions in Molisol type soils. For sampling, an experimental design of random plots with three replications was used. In each situation, soil samples composed of 0 - 30 and 30 - 60 cm were taken. It was determined: total organic carbon, very thick particulate organic carbon (> 250 µm), thick particulate organic carbon (> 250 µm - 150 µm), fine particulate organic carbon (150 µm - 75 µm), excellent particulate organic carbon (75 µm - 53 µm), and the organic carbon associated with the mineral fraction (<53 µm). It was evident that the soils under grass receive a more significant contribution of organic carbon, both at a depth of 0-30 cm (330.62 MgC / ha) and 30 - 60 cm (260.68 MgC / ha), showing significant differences with forest contributions of (200MgC / ha) and 160 Mg / ha correspondingly. For a fraction of very thick particulate organic carbon (F1), in the first 30 cm this pool represents on the grass an average of 107.12 MgC / ha, this value being significantly different from the lake in the forest of 40.51 MgC / ha. |
|---|