Distribution of nematodes in wetland soils with difference distance from the Bohai sea 	 359-366

Wu, Honghui; Li, X.X.; Shi, Leilei; Wang, Z.H.; Ma, Fang

doi:10.17221/417-pse

Cited by 9 publications

(6 citation statements)

References 19 publications

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“…The data obtained in the present study indicated that wetland reclamation had significant effects on the abundance of plant-feeding nematodes, the proportions of plant-feeding nematodes were GW (91.0%) > TW (88.1%) > CW (53.5%) ( Table 2). Similar results were found by Wu et al (2008) who observed the plant parasite nematodes were the most abundant trophic groups in wetland soils, and the average relative abundance was 91.33% of the nematode community. Plant parasite and omnivore-predator nematodes were more sensitive to the ecophysiological individual features of observed plants versus the total number of nematodes and bateriaand fungi-feeding nematodes (Stanislav et al, 2008), which can explain the changes of soil nematode communities composition in the different types of wetland soils.…”

Section: Effects Of Wetland Reclamation On Functional Guildssupporting

confidence: 89%

Effects of wetland utilization change on spatial distribution of soil nematodes in Heihe River Basin, Northwest China

et al. 2016

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The first account of the effects of wetland reclamation on soil nematode assemblages were provided, three sites in Heihe River Basin of Northwest China, that is grass wetland (GW), Tamarix chinensis wetland (TW) and crop wetland (CW) treatments, were compared. Results showed that the majority of soil nematodes were presented in the 0-20 cm soil layers in CW treatments, followed by in the 20-40 cm and 40-60 cm layers in GW treatments. Plant-feeding nametodes were the most abundant trophic groups in each treatment, where GW (91.0%) > TW (88.1%) > CW (53.5%). Generic richness (GR) was lower in the TW (16) than that in GW (23) and CW (25). The combination of enrichment index (EI) and structure index (SI) showed that the soil food web in GW was more structured, and those in TW was stressed, while the enrichment soil food web was presented in the CW treatment. Several ecological indices which reflected soil community structure, diversity, Shannon-Weaver diversity (H′), Evenness (J′), Richness (GR) and modified maturity index (MMI) were found to be effective for assessing the response of soil namatode communities to soil of saline wetland reclamation. Furthermore, saline wetland reclamation also exerted great influence on the soil physical and chemical properties (pH, Electric conductivity (EC), Total organic carbon (TOC), Total nitrogen (Total-N) and Nitrate Nitrogen (N-NO 3-)). These results indicated that the wetland reclamation had significantly effects on soil nematode community structure and soil properties in this study.

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Section: Effects Of Wetland Reclamation On Functional Guildssupporting

confidence: 89%

Effects of wetland utilization change on spatial distribution of soil nematodes in Heihe River Basin, Northwest China

et al. 2016

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“…The study revealed the presence of trophic groups comprising of herbivores, fungivores, bacteriovores and omnivores-predaceous. The distribution of nematodes in the agro-ecosystem was similar to the nematodes reported by Wu et al, (2008) and Lawal and Atungwu (2012). Application of organic amendment of composted plant materials stacked on poultry dung on eggplant field led to the development of a complex ecosystem which was found to be constituted by varying population of nematode species each with different feeding characteristics.…”

Section: Discussionsupporting

confidence: 78%

“…Preferential by the innate characteristics gifted to all living creatures by nature; they also have the ability to carry out all physical and physiological processes such as reproduction, feeding, excretion, response to stimuli as well as movement from place to place. Spatial and temporal distribution of nematodes in aquatic and terrestrial ecosystem has been well studied (Wu et al, 2008;Atungwu, 2013 andNzeako et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…As major player in the soil food chain (Wu et al, 2008), nematodes have been reported to contribute immensely to the rate of decomposition of plant litter and turnover of nutrients from soil organic matter (Wu et al, 2008 andAtungwu, 2013) and many researchers have investigated into nematode communities in natural ecosystems and agro ecosystems including differences linked with land management practices (Liang et al, 2002 andOkada andHarada, 2007). Besides being a source of substrate on which other soil mesofuana feed (Atungwu et al, 2012), nematode population in agro-ecosystem can respond in a predictable way to ecosystem disturbance during land preparation and cultural practices involving incorporation of organic materials into the soil (Freckman and Ethema, 1993;Lawal, 2009 andAtungwu, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Nematode Occurrence and Distribution in an Organically Managed Solanum Melongena L Field

2017

Sci. Agric

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Nematode occurrence and distribution in an organically managed S. melongena L. field was evaluated. Collection of soil samples was achieved using a soil corer at depths 0-5cm and 6-10cm undisturbed and disturbed sites. Eggplant roots at various amendments were collected at 30, 60 and 90 days post application of organic amendment. the modified Baermann's method was used to extract nematodes from soil and root. There was variability of in depth related occurrence of nematode community composition, however, abundance and species diversity was highest at the 0-5cm depth and declined as depth increases at the undisturbed site (P<0.05). Also, at the disturbed site, nematode abundance and diversity was highest at the portion amended with 2kg of organic amendment and declined at the control portion (P<0.05). however, all amended portions with different dosages of organic amendment influenced nematode abundance and diversity. The study indicated that incorporation of organic amendment influenced the pathogenicity and establishment of feeding sites on the crops. Also, organic amendment influenced the species richness and relatively even distribution of nematodes in the study. Trophic affiliation and specific biotrophy of nematode community composition influenced the spatial and temporal distribution, species abundance and richness of the organism in the study.

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“…Peatlands are ecosystems that are created on locations permanently waterlogged by precipitation, surface, or underground water. Understanding the hydrological system is crucial for sustainable land development, and effective soil and nature conservation and site hydrology appear as the main force of secondary succession [ 5 , 6 , 7 ]. In conditions of reduced air, organic residues in various stages of decomposition are accumulated, and peatland is created.…”

Section: Introductionmentioning

confidence: 99%

Chemical and Phytocoenological Characteristics of Two Different Slovak Peatlands

Fazekašová

Barančíková

Fazekaš

et al. 2021

Plants

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This paper presents the results of pedological and phytocoenological research focused on the detailed research of chemical parameters (pH, organic carbon, and nutrients), risk elements (As-metalloid, Cd, Co, Cr, Cu, Ni, Pb, and Zn), and species composition of the vegetation of two different peatlands on the territory of Slovakia—Belianske Lúky (a fen) and Rudné (a bog). Sampling points were selected to characterize the profile of the organosol within the peatland, the soil profile between the peatland and the agricultural land, and the soil profile of the outlying agricultural land, which is used as permanent grassland. Based on phytocoenological records, a semi-quantitative analysis of taxa in accordance with the Braun–Blanquet scale was performed. The study revealed that the thickness of the peat horizon of the fen in comparison with the bog is very low. In terms of the quality of organic matter, the monitored peatlands are dominated by fresh plant residues such as cellulose and lignin. Differences between individual types of peatlands were also found in the soil reaction and the supply of nitrogen to the organic matter of peat. The values of the soil exchange reaction were neutral on the fen, as well as slightly alkaline but extremely low on the bog. A significantly higher nitrogen supply was found in the organic matter of the fen in contrast to the bog. At the same time, extremely low content of accessible P and an above-limit content of As in the surface horizons were also found on the fen. From the phytocoenological point of view, 22 plant species were identified on the fen, while only five species were identified on the bog, which also affected the higher diversity (H’) and equitability (e). The results of the statistical testing confirmed the diversity of the studied peatlands and the different impact of environmental variables on plant diversity.

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Distribution of nematodes in wetland soils with difference distance from the Bohai sea 359-366

Cited by 9 publications

References 19 publications

Effects of wetland utilization change on spatial distribution of soil nematodes in Heihe River Basin, Northwest China

Effects of wetland utilization change on spatial distribution of soil nematodes in Heihe River Basin, Northwest China

Nematode Occurrence and Distribution in an Organically Managed Solanum Melongena L Field

Chemical and Phytocoenological Characteristics of Two Different Slovak Peatlands

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