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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
The effect of tree species on soil properties
 Hüblová, Lucie ; Frouz, Jan (advisor) ; Veselá, Hana (referee)
Soil quality and its ability to support plant growth and soil organisms is affected by the content of soil organic carbon which can also influence many soil properties. The biggest terrestrial reservoirs of carbon (C) are forests. The amount of C sequestered in soil depends on quantity and quality of organic matter returned to forest floor as leaf litter. For how long and how effectively the C will be stored in soil is largely dependent on the rate of decomposition of organic matter and stabilization mechanisms. In this work I compared data from 40 "common garden" experiments in which different tree species were planted in adjacent plots on homogenous soil. C storage was compared on three types of afforested soils with different previous land use. Forests and former arable soils represented the well- developed soils in late stages of pedogenesis. Post-mining sites represented soils where pedogenesis was in the initial state. I found out that soil age is the controlling factor of carbon sequestration. In well-developed soils more C was stored under conifers. In initial soils on post mining sites on the other hand more C was stored under broadleaves. A negative correlation between sequestered C and C:N ratio in leaf litter was found on post mining sites. The results suggest that different mechanisms...
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