Changes in soil microbial biomass, metabolic quotient, and organic matter turnover under Hieracium ( H. pilosella L.)

Saggar, Surinder; McIntosh, Peter D.; Hedley, C. B.; Knicker, Heike

doi:10.1007/s003740050613

Cited by 77 publications

(48 citation statements)

References 19 publications

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“…This includes having an impact on the biogeochemical cycles of N and other elements [5][6][7][8], on the quantity and quality of soil organic matter [9], and on soil pH [10]. Changes to the chemical properties of soil due to the influence of vegetation have been observed in many different ecosystems [5,[11][12][13][14][15], and recently special attention has been focused on the role of alien species in soil nutrient enrichment [16,17].…”

Section: Introductionmentioning

confidence: 99%

Chemical composition of the leaves of Reynoutria japonica Houtt. and soil features in polluted areas

et al. 2013

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Abstract:The study was conducted on six sites that are dominated by Japanese knotweed (Reynoutria japonica) and that vary in the level of industrialization and habitat transformation by humans. The aim of the research was to investigate the chemical-physical features of soil under a closed and dense canopy of R. japonica, the chemical composition of the R. japonica leaves, and to compare the content of certain elements in the soil-plant-soil system. The soil organic carbon (C org ) content varied from 1.38±0.004% to 8.2±0.047% and the maximum in leaves was 49.11±0.090%. The lowest levels of total nitrogen (N tot ) in soil were recorded on the heavily disturbed sites (till 0.227±0.021%). Soil pH varied greatly, ranging from acidic (pH=4.0) to neutral (pH=7.7). Heavy metal content differed significantly among the study sites. At all of the sites, both in the case of soil and plant leaves, Zn was a dominant element and its concentration ranged from 41.5 to 501.2 mg·kg -1 in soils and from 38.6 to 541.7 mg·kg -1 in leaves. ) were observed on the site that had been influenced by agricultural practices. The results obtained showed that R. japonica is able to accumulate high levels of heavy metals.

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Section: Introductionmentioning

confidence: 99%

Chemical composition of the leaves of Reynoutria japonica Houtt. and soil features in polluted areas

et al. 2013

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“…Existing literature provides evidence that invasive plant species can modify physical, chemical, and biological properties of the soil including inputs and cycling of nutrients (Ehrenfeld, 2003;Hawkes et al 2005;Sperry et al 2006), soil pH (Kourtev et al 2003), soil organic matter and aggregation (Saggar et al 1999). Invasive plants also modify the biotic composition of the soil by affecting the soil food web (Duda et al 2003), total microbial communities (Kourtev et al 2003), and fungal communities (Hawkes et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of exotic invasive old world climbing fern (lygodium microphyllum) on soil properties

Soti

Jayachandran

2016

J. Soil Sci. Plant Nutr.

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Old World climbing fern (Lygodium microphyllum) has become one of the most serious ecological threats to the integrity of the greater Everglades ecosystem of south Florida. In this study, we analyzed the effects of Old World climbing fern on surfacesoil characteristics at invaded sites in Florida. We compared soil characteristics of six invaded and adjacent uninvaded plots at three different locations. Our results show that the fern can grow and thrive in a wide range of soil types and the impact on the soil was site specific with effects being more prominent in sites with low nutrient status. Additionally, there were significant differences in the soil nutrient status and microbial population in the invaded and uninvaded sites. Sites with Old World climbing fern had significantly higher nutrient concentrations that correlated with higher soil organic matter. Overall our results indicate that this exotic pest plant can potentially alter its below ground environment to its own benefit by enhancing the soil nutrient status byadding soil organic matter.

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“…The background of tbis study is deseribed by Saggar et al (1999) who compared soil microbial biomass C, N and P contents, metabolie quotient and organie malter turnover benealh Hieracil/ln piloseUa L. and its adjaeent herbfield (depleted tussock grassland). Soil proeesses under H. pi/os ella were found to be profoundly different from those occurring in herbfield soils because of the differences between soil microbial biomass and organic malter pools and dynamics under the two vegetation types.…”

Section: Introductionmentioning

confidence: 99%

Soil organic matter transformations induced by Hieracium pilosella L. in tussock grassland of New Zealand

Knicker

Saggar

Bäumler

et al. 2000

Biology and Fertility of Soils

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Soil organic matter transformations induced by Hieracium pi/osella L. in tussock grassland of New ZealandAbstraet To study the effeet of Hieracium pilosella L. invasion on the transformations of soil organic matter of New Zealand tussoek grassland soils (Ustoebrepts), plant material and soils underneath Hieracium, the surrounding halo, and the adjaeent herbfield (depleted tussock grassland) were examined for their ehemical eomposition. An atlempt was made to reveal possible ehanges in ehemieal eomposition of the soil organie malter indueed by H. pi/osella invasion. Small differences were deteeted bv solid-state J3C nuclear magnetie resonanee (NMR) sp~etroseopy in the composition of the plant and soil materials from these zones. Most of the differenees in soil organie matler oeeurred due to differenees in the amount and quality of plant-residue inputs. Comparable amounts of phenolie C were deteeted in the solid-state 13C NMR speetra of H. pi/ose!-la and herbfield vegetation, while a!kaline CuO oxidation yielded considerable lower lignin oxidation produets for H. pilosella. A slightly higher proportion of these eompounds in H. pi/osella soil revealed an aeeumnlation and a low degradation rate of lignin eompounds under H. pi/osella. The HCI hydrolysis and solid-state 15N NMR speetroseopy showed similar ehemical eompositions of the N fraetions of the tbree different soils. The absenee of 15N NMR signal intensity assignable to aniline derivatives or aromatie heteroeyclic N indieates that the eondensation of phenolie eompounds with N groups plays a minor role in N sequestration in these soils.

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Changes in soil microbial biomass, metabolic quotient, and organic matter turnover under Hieracium ( H. pilosella L.)

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Cited by 77 publications

References 19 publications

Chemical composition of the leaves of Reynoutria japonica Houtt. and soil features in polluted areas

Chemical composition of the leaves of Reynoutria japonica Houtt. and soil features in polluted areas

Effect of exotic invasive old world climbing fern (lygodium microphyllum) on soil properties

Soil organic matter transformations induced by Hieracium pilosella L. in tussock grassland of New Zealand

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