Gray heron colony impact on soil cellulolytic activity

M. Tryfanova1, G. Zadorojhna2, J. Zhukova2

1Nature Reserve «Dniprovs’ko-Oril’s’ky»
2, Poletaeva St., Dnipropetrovsk 49054, Ukraine
2Oles Honchar Dnipropetrovsk National University
72, Gagarin Ave., Dnipropetrovsk 49010, Ukraine
zadorojhnaya_galina@list.ru

The features of biological and physical processes dynamic in soil under gray heron (Ardea cinerea L.) colony impact have been investigated. The degree of spatial variability of soil cellulolytic activity of the investigated area has been assessed. Regression analysis revealed a negative correlation between cellulolytic activity and distance from trees with birds nests and significant positive correlation between cellulolytic activity and soil temperature. The cellulolytic activity of the surface layer of the soil has been found to be higher where soil penetration resistance values lower in the layer of 20–25 cm and where soil penetration resistance values higher at a depth of 25–30 cm. SEPATH-analysis has revealed directions of causation between these parameters.


Keywords: soil cellulolytic activity, consortive connections, soil properties spatial distribution


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