scholarly journals Influence of durative drainage melioration on the soil macrofauna (The Leningrad region)

2021 ◽  
Vol 928 (1) ◽  
pp. 012001
Author(s):  
B Aparin ◽  
E Pyatina ◽  
G Kasatkina
Keyword(s):  
Functional Groups ◽  
Comparative Evaluation ◽  
Trophic Structure ◽  
Soil Invertebrates ◽  
Leningrad Region ◽  
Soil Macrofauna ◽  
Large Soil ◽  
Forest Farm

Abstract The soil-zoological research took place in 2018 on the territory of the soil-hydromeliorative station “Malinovsky” of Lisinsky educational-experimental forest farm (Tosnensky district, Leningrad region, Russia) which was drained in 1973-1974. The purpose of this research is a comparative evaluation of the density of the population and taxonometric variety of eco-functional groups of macrofauna on the Gleysols Histic Drainic after 45 year draining period and the similar biotop without drainage. The constitution of group and species and the trophic structure of soil macrofauna have been researched. 118 individuals of geobionts out of 3 types and 6 classes have been collected. It’s been stated that zoophages are the trophic dominating group. After 45 year draining period a poor groups and species constitution, a low number of large soil invertebrates and a small share of saprophages have survived which corresponds to the fauna of the soil in oligotrophic bogs.

scholarly journals Features of forming an invertebrate fauna in technogen environment (Kriviy Rig, Ukraine)

2016 ◽  
pp. 53-56
Author(s):  
Y. Kul'Bachko ◽  
O. Pakhomov ◽  
O. Didur ◽  
I. Loza
Keyword(s):  
Species Richness ◽  
Functional Groups ◽  
Soil Layer ◽  
Taxonomic Composition ◽  
Soil Invertebrates ◽  
Invertebrate Fauna ◽  
Small Thickness ◽  
Industrial Enterprises ◽  
Dominance Structure

The features of invertebrate fauna forming in conditions of technogen pressure (Kriviy Rig, Ukraine) were studied. The taxonomic composition, dominance structure and correlation of soil invertebrates’ functional groups in the large industrial enterprises were examined. It had been found that a small thickness of the soil layer as a habitat for ground animals causes the depletion of taxonomic composition, species richness and decrease the total number of soil invertebrates. Gastropoda molluscs in conditions of technogen pressure are the most adapted to stresses group of invertebrates.

scholarly journals Mineral Fertilizers Influence the Macrofauna of Soils Under Cocoa Trees in the South-Western Côte d’Ivoire

2021 ◽  
Vol 13 (2) ◽  
pp. 32
Author(s):  
Hypolith K. Kouadio ◽  
Alain Jacques A. Kotaix ◽  
Sydiki Bakayoko ◽  
Emmanuel K. Kassin ◽  
Aïdara Sékou ◽  
...  
Keyword(s):  
Species Richness ◽  
Functional Groups ◽  
Diversity Indices ◽  
Living Environment ◽  
Mineral Fertilizers ◽  
First Year ◽  
Mineral Fertilization ◽  
Soil Macrofauna ◽  
Significant Difference ◽  
Soil Monolith

A study on mineral fertilization of soils was carried out for two years in three cocoa farms in the Nawa region of south-western Côte d’Ivoire. The aim of this study was to evaluate the effects of mineral fertilizers on soil macrofauna. The experimental design was Fisher block with four treatment with three repetitions. The treatments were control without fertilizer (T0), NPK 0-23-19 fertilizer (T1), NPK 0-15-15 + 17 CaO + 5 MgO + 1 B2O3 + 0.5 Zn (T2) and NPK 4-10-10 + 19 CaO + 4 MgO + 0.8 B2O3 + 0.3 Zn (T3). Twelve soil monoliths were made per treatment and per site, to count the macrofauna of the soil. Each soil monolith was subdivided into three strata 0-10 cm, 10-20 cm and 20-30 cm. The organisms were counted and classified into functional groups. The abundance, species richness and diversity indices of Shannon-weaver and Piélou were determined. The analysis of variance of the numbers of individuals in the macrofauna did not show a significant difference between the treatments on different strata of the monoliths during the second year of the trial. However, during the first year, all the treatments with fertilizer in the 0-10 cm stratum had a more abundant macrofauna than that of the control without fertilizer at Soubré and Mayo. Multivariate analyses (AFC) showed links between functional groups of organisms and treatments. Myriapods and earthworms were linked to the T2 and T3 treatments, microarthropods to T1 and other organisms to T0. As for macrofauna diversity, the highest value of species richness (7 species), Shannon-weaver (2) and Piélou (1) indices were found in the fertilized treatments. Mineral fertilizers thus presented better conditions for the expansion of macrofauna. A reasoned application of mineral fertilizers creates a favourable living environment for certain soil organisms.

Distribution of large soil invertebrates as related to soil parameters

2007 ◽  
Vol 40 (1) ◽  
pp. 64-69 ◽  
Author(s):  
F. A. Savin ◽  
A. D. Pokarzhevskii ◽  
K. B. Gongal’skii
Keyword(s):  
Soil Invertebrates ◽  
Soil Parameters ◽  
Large Soil
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