Carbon and nitrogen stock in deadwood biomass in natural temperate forest along a soil moisture gradient
Ewa Błońska , Jarosław Lasota , Wojciech Piaszczyk
AbstractDeadwood is an important element of properly functioning forest ecosystems and plays a very important role in the maintenance of biodiversity, soil fertility, and carbon sequestration. The main aim of the study was to assess the amount of deadwood, its decay rates, carbon and nitrogen stock in deadwood biomass against the background of differently moistened soils. The investigation was carried out in Czarna Rózga Reserve in central Poland. Forty circular plots of 0.1 ha each were established in a regular grid of points (100 × 300 m). The study included the sequence of soil humidity: fresh, moist and wet. All live and dead trees were measured on each test plot. Additionally, samples of wood from different species were taken from lying logs in five decay classes for carbon and nitrogen concentration determination. The highest stocks of deadwood were related with fresh variant. In the wet variant the increase in stock of deadwood can be explained by the slowdown of decay processes during periods of excessive humidity, causing periodic anaerobic conditions. The soil conditions determine the species composition and structure of the stand, which affects the carbon and nitrogen stock in lying dead trees.
|Journal series||Plant Biosystems, ISSN 1126-3504, e-ISSN 1724-5575, (N/A 40 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Carbon and nitrogen sequestration, dead trees, forest ecosystem, moisture gradient, site conditions|
|Publication indicators||= 1; : 2017 = 0.78; : 2018 = 1.525 (2) - 2018=1.378 (5)|
|Finansowanie||The project was financed by the National Science Centre, Poland: decision no. DEC-2016/21/D/NZ9/01333|
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