Effect of individual trees on the pH and the content of heavy metals in forest litters upon industrial contamination

Воробейчик, Е. Л.; Pishchulin, P. G.

doi:10.1134/s1064229309080043

Cited by 13 publications

(2 citation statements)

References 37 publications

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“…For isolated trees in a savanna ecosystem of South Africa, stemflow was suggested to be a primary mechanism for the enrichment of Zn, Mo, As, and Se in soils adjacent to tree trunks in comparison to the open [ Mills et al ., ]. It, however, remains difficult to distinguish whether and to what degree soil chemical heterogeneity was influenced by stemflow, throughfall, and litterfall [ Vorobeichik and Pishchulin , ]. If heterogeneous solute input by stemflow is included in hydrochemical models, then the expected increase of that solute in the soil next to the tree trunk can be simulated as shown for aluminum by Nikodem et al .…”

Section: Stemflow‐soil Interactionsmentioning

confidence: 99%

A review of stemflow generation dynamics and stemflow‐environment interactions in forests and shrublands

Levia

Germer

2015

Reviews of Geophysics

290

271

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Many geoscientists now recognize stemflow as an important phenomenon which can exert considerable effects on the hydrology, biogeochemistry, and ecology of wooded ecosystems and shrublands. Despite the explosive growth of stemflow research, until this review there has been no comprehensive attempt to summarize and synthesize this literature since 2003. Topical areas of substantive new knowledge in stemflow research include the following: (1) the interrelationships among stemflow and meteorological conditions, especially within individual rain events; (2) the dynamic interplay between stemflow and canopy structure; (3) stemflow and the cycling of solutes and transport of particulate matter; (4) stemflow and its interactions with canopy fungi and corticolous lichens; and (5) stemflow-soil interactions. Each of these five topical areas of substantive new stemflow research is summarized and synthesized, with areas of future research opportunities discussed. In addition, we have reviewed the parameters which can be used to describe stemflow and critically evaluate their utility for different purposes. This review makes a call for scientists studying stemflow to utilize common metrics in an effort to increase the cross-site comparability of stemflow studies. Capitalizing on the insights of prior research, exciting research opportunities await hydrologists, biogeoscientists, and forest ecologists who will conduct studies to deepen our knowledge of stemflow which will enable a better and more accurate framing of stemflow in the larger context of watershed hydrology and biogeochemistry.

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Section: Stemflow‐soil Interactionsmentioning

confidence: 99%

A review of stemflow generation dynamics and stemflow‐environment interactions in forests and shrublands

Levia

Germer

2015

Reviews of Geophysics

290

271

View full text Add to dashboard Cite

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“…Consequently, Pb release would be more difficult than that of Cd. Moreover, the Cd mobility in a soil depends more strongly on the acidity, whereas that of Pb is controlled by the concentration of organic substances [ 25 ], which may result in different amounts of Pb and Cd release. However, the research on Pb and Cd dynamics during litter decomposition is insufficient.…”

Section: Introductionmentioning

confidence: 99%

Forest Gaps Inhibit Foliar Litter Pb and Cd Release in Winter and Inhibit Pb and Cd Accumulation in Growing Season in an Alpine Forest

Yang

et al. 2015

PLoS ONE

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AimsThe release of heavy metals (such as Pb and Cd) from foliar litter play an important role in element cycling in alpine forest ecosystems. Although natural forest gaps could play important roles in the release of heavy metals from foliar litter by affecting the snow cover during the winter and solar irradiation during the growing season, few studies have examined these potential roles. The objectives of this study were to document changes in Pb and Cd dynamics during litter decomposition in the center of gaps and under closed canopies and to investigate the factors that controlled these changes during the winter and growing seasons.MethodsSenesced foliar litter from six dominant species, including Kangding willow (Salix paraplesia), Masters larch (Larix mastersiana), Mingjiang fir (Abies faxoniana), Alpine azalea (Rhododendron lapponicum), Red birch (Betula albosinensis) and Mourning cypress (Sabina saltuaria), was placed in litterbags and incubated between the gap center and closed canopy conditions in an alpine forest in the eastern region of the Tibetan Plateau. The litterbags were sampled at the snow formation stage, snow coverage stage, snow melt stage and during the growing season. The Pb and Cd concentrations in the sampled foliar litter were determined by acid digestion (HNO3/HClO4).Important findingsOver one year of decomposition, Pb accumulation and Cd release from the foliar litter occurred, regardless of the foliar litter species. However, Pb and Cd were both released from the foliar litter during the winter and accumulated during the growing season. Compared with the gap center and the canopy gap edge, the extended gap edge and the closed canopy showed higher Pb and Cd release rates in winter and higher Pb and Cd accumulation rates during the growing season, respectively. Statistical analyses indicate that the dynamics of Pb were significantly influenced by frequent freeze–thaw cycles in winter and appropriate hydrothermal conditions during the growing season, the dynamics of Cd were strongly influenced by species and the presence of a forest gap at different decomposition stages. These results show that forest gaps could inhibit Pb and Cd release from foliar litter in the alpine forest of western Sichuan. In addition, a decrease in the snow depth in the winter warming scenario would promote the release of Pb during foliar litter decomposition. There exist some difference that may be influenced by litter quality, microenvironment and microtopography during litter decomposition.

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Interspecific differences in determinants of plant distribution in industrially polluted areas: Endogenous spatial autocorrelation vs. environmental parameters

2015

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Effect of individual trees on the pH and the content of heavy metals in forest litters upon industrial contamination

Cited by 13 publications

References 37 publications

A review of stemflow generation dynamics and stemflow‐environment interactions in forests and shrublands

A review of stemflow generation dynamics and stemflow‐environment interactions in forests and shrublands

Forest Gaps Inhibit Foliar Litter Pb and Cd Release in Winter and Inhibit Pb and Cd Accumulation in Growing Season in an Alpine Forest

Interspecific differences in determinants of plant distribution in industrially polluted areas: Endogenous spatial autocorrelation vs. environmental parameters

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