Base de dados : MEDLINE
Pesquisa : D20.721 [Categoria DeCS]
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  1 / 40603 MEDLINE  
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[PMID]:29431338
[Au] Autor:Shevchenko AA; Kulagin AA; Grigorenko LV
[Ti] Título:[Hygienic assessment of the impact of diesel fuel on the ordinary black soil microbiocenosis].
[So] Source:Gig Sanit;95(10):942-5, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The main sources of soil contamination by oil products in the Dnepropetrovsk region are oil depots, gas stations and all types of transport that use and transport oil. The diesel fuel was found to be the one of the priority multicomponent components of the petroleum products, so it there was occurred the necessity for the hygienic regulation of the oil component in order to monitor a multicomponent composition ofpetroleum products in the study of complex influence of environmental factors on health population. In the study of the effect of various concentrations of diesel fuel on the number of total bacterial count (TBC) as the threshold for general sanitary indicator of hazard, there was recommended the concentration of4000 mg/kg, which oppressed the vital activity of soil microorganisms by 50-27.3% for the first 2 weeks of the laboratory experiment.
[Mh] Termos MeSH primário: Gasolina
Microbiota/efeitos dos fármacos
Solo
[Mh] Termos MeSH secundário: Monitoramento Ambiental/métodos
Monitoramento Ambiental/normas
Poluição Ambiental/efeitos adversos
Poluição Ambiental/análise
Poluição Ambiental/prevenção & controle
Gasolina/efeitos adversos
Gasolina/análise
Seres Humanos
Saúde Pública/métodos
Saúde Pública/normas
Solo/química
Solo/normas
Microbiologia do Solo
Poluentes do Solo/efeitos adversos
Poluentes do Solo/análise
Ucrânia/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Gasoline); 0 (Soil); 0 (Soil Pollutants)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  2 / 40603 MEDLINE  
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[PMID]:29431337
[Au] Autor:Tafeeva EA; Ivanov AV; Titova AA; Petrov IV
[Ti] Título:[Content of heavy metals and petroleum products in the soil on the territory of oilproducing areas of the Republic of Tatarstan].
[So] Source:Gig Sanit;95(10):939-41, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The paper presents data on the hygienic assessment of the content of heavy metals and petroleum products in the soil on the territory of oil-producing areas of the Republic of Tatarstan. The average total content of lead (10,1 mg/kg), cadmium (0.073 mg/kg), manganese (792.4 mg/kg), cobalt (14.2 mg/kg), chromium (87.6 mg/kg), nickel (65.2 mg/ kg), arsenic (8.0 mg/kg), copper (36.6 mg/kg) and zinc (521 mg/kg) in soil for agricultural purposes near objects oil production was shown not to exceed the established hygienic standards. Soil contamination with oil products leads to an increase in its toxicity and mutagenicity. Soil contamination with oil products at the level of as low as 30 mg/ kg leads to the gain in its toxicity (low toxicity) and mutagenicity (average) (specific gravity of germinated seeds was 70.7±0.67%, aberrations - 1.78±0.19%).
[Mh] Termos MeSH primário: Agricultura
Poluição Ambiental
Metais Pesados
Indústria de Petróleo e Gás
Petróleo
Solo
[Mh] Termos MeSH secundário: Agricultura/métodos
Agricultura/normas
Monitoramento Ambiental/métodos
Monitoramento Ambiental/normas
Poluição Ambiental/efeitos adversos
Poluição Ambiental/análise
Poluição Ambiental/prevenção & controle
Seres Humanos
Metais Pesados/efeitos adversos
Metais Pesados/análise
Mutagênicos/análise
Petróleo/efeitos adversos
Petróleo/análise
Saúde Pública/métodos
Saúde Pública/normas
Medição de Risco/métodos
Medição de Risco/normas
Solo/química
Solo/normas
Poluentes do Solo/efeitos adversos
Poluentes do Solo/análise
Tartaristão
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals, Heavy); 0 (Mutagens); 0 (Petroleum); 0 (Soil); 0 (Soil Pollutants)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  3 / 40603 MEDLINE  
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[PMID]:29431334
[Au] Autor:Abakumov EV; Suyundukov YT; Pigareva TA; Semenova IN; Semenova RF; Biktimerova G; Rafikova YS; Ilbulova GR
[Ti] Título:[Biological and sanitary evaluation of Sibaisky quarry dumps of the Bashkortostan Republic].
[So] Source:Gig Sanit;95(10):929-34, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Dumps of quarries for the extraction of copper pyrite in Urals region of the Bashkortostan Republic are the problem object, which represents a main technogenic source of environmental pollution. Soils of Sibaisky quarry dumps are characterized by the elevated content of heavy metals relatively to maximum permissible concentrations and regional geochemical background. In sanitary hygienic evaluation of the pollution by studied technosols according to the total pollution index (Zc) it was revealed that according to the content of total forms studied technosols are referred to moderately hazard, while in regards of the same index concerning the content of the mobile forms technosols are referred to the category of hazardous. In this regard, in plant products grown in the area adjacent to the dumps, there was revealed an excess on cadmium. The biological activity of soils is very low, due to the low microbial community development. Soil formation in the dumps is almost not expressed, appearing in the formation of low-thick underdeveloped humus horizon with a little diversity of species and projective cover. Sanitary-hygienic situation in conditions in the quarry dump area is unfavorable, that does not allow newly formed soils to carry out environmental functions effectively
[Mh] Termos MeSH primário: Biota/efeitos dos fármacos
Cobre
Poluição Ambiental
Metais Pesados
Mineração/métodos
Solo
[Mh] Termos MeSH secundário: Bashkiria
Monitoramento Ambiental/métodos
Poluição Ambiental/efeitos adversos
Poluição Ambiental/análise
Seres Humanos
Metais Pesados/efeitos adversos
Metais Pesados/análise
Solo/química
Solo/classificação
Poluentes do Solo/efeitos adversos
Poluentes do Solo/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals, Heavy); 0 (Soil); 0 (Soil Pollutants); 789U1901C5 (Copper)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  4 / 40603 MEDLINE  
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[PMID]:29431333
[Au] Autor:Kirtsideli IY; Abakumov EV; Teshebaev SB; Zelenskaya MS; Vlasov DY; Krylenkov VA; Ryabusheva YV; Sokolov VT; Barantsevich EP
[Ti] Título:[Microbial communities in regions of arctic settlements].
[So] Source:Gig Sanit;95(10):293-9, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The composition and the structure of microbial communities in areas of Arctic settlements were studied. The main attention has been given to microscopic fungi. As result of observation of 5 Arctic regions 117 species of microscopic fungi are revealed in soils and anthropogenic substrates. The identification was carried out with the use ofmycological and molecular genetic methods. Most ofspecies belong to the Ascomycotina. Genus Penicillium is characterized by the most species diversity (24 species). Most offungi are destructors of various materials and potential human pathogens. Dominant species are revealed. The distribution of microorganisms in the living and working areas of polar stations, as well as the adjacent areas are described. Black-colored fungi adapted to unfavorable environment are often the dominated group of microorganisms on soils and anthropogenic substrates. The shaping of soil microbiota was shown to be related to the anthropogenic impact. Considerable similarity of microbial communities composition in the soil and man-made substrates is fixed. As result of mycological analysis of contaminated soils 76 species of microscopic fungi were observed, but 41 species of them (53.9%) were identified in the areas of Arctic polar stations on the man-made materials. These species include the representatives of the genera Alternaria, Aspergillus, Aureobasidium, Chaetomium, Cladosporium, Exophiala, Geomyces, Humicola, Penicillium, Mucor, Phoma, Rhodotorula, Trichoderma and Ulocladium. The obtained data show a significant similarity in species composition of contaminated soils and anthropogenic substrates. Human activity contributes to the distribution of cosmopolitan species, including opportunistic fungi, in the Arctic region. The high numbers of organotrophic bacteria were revealed in soil samples. Some species of microorganisms produce the organic acids in an external environment that promotes the erosion of materials.
[Mh] Termos MeSH primário: Fungos Mitospóricos
Microbiologia do Solo
Solo/normas
[Mh] Termos MeSH secundário: Regiões Árticas/epidemiologia
Biota
Monitoramento Ambiental/métodos
Monitoramento Ambiental/estatística & dados numéricos
Seres Humanos
Microbiota
Fungos Mitospóricos/classificação
Fungos Mitospóricos/isolamento & purificação
Fungos Mitospóricos/fisiologia
Filogeografia
Federação Russa/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  5 / 40603 MEDLINE  
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[PMID]:29431331
[Au] Autor:Vodyanova MA; Kriatov IA; Donerian LG; Evseeva IS; Ushakov DI; Sbitnev AV
[Ti] Título:[Ecological hygienic assessment of soils quality in urban areas].
[So] Source:Gig Sanit;95(10):913-6, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Assessment of the soil quality is ofprime importance essential for the characterization of the ecological and hygienic condition of the territory, as the soil is the first link of the food chain, the source of secondary air and water pollution, as well as an integral index of ecological well-being of the environment. Herewith the qualitative analysis of soil complicated by the specifics of the soil genesis in the urban environment, in which an important role is played by manmade land bulk and alluvial soils; the inclusion of construction of material debris and household garbage in upper horizons; the growing up of the profile due to the perpetual introduction of different materials and intensive aeolian deposition. It is advisable to consider the currently neglected question of the study of soil vapor containing volatile chemicals. These pollutants penetrate into the building through cracks in the foundation and openings for utilities. Soil evaporation may accumulate in residential areas or in the soil under the building. Because of this, it is necessary to pay attention to the remediation of areas allocated for the built-up area, possessing a large-scale underground parking. Soil contamination is the result of significant anthropogenic impacts on the environment components. In general, about 89.1 million people (62.6% of the population of the country) live in terms of complex chemical load, determined by contamination offood, drinking water, air and soil. The list of microbiological and sanitary-chemical indices of the assessment of soils of urban areas may vary in dependence on the data obtained in pilot studies due to changes and additions to the assigned tasks. Timely forecast for the possibility of the usage of released lands of urban territories for the construction and the creation of new objects for different purposes should become the prevention of chronic non-infectious diseases in the population residing in urban areas.
[Mh] Termos MeSH primário: Poluição Ambiental/prevenção & controle
Poluentes do Solo
Solo
Saúde da População Urbana/normas
[Mh] Termos MeSH secundário: Monitoramento Ambiental/métodos
Monitoramento Ambiental/normas
Seres Humanos
Saúde Pública/métodos
Saúde Pública/normas
Federação Russa/epidemiologia
Solo/química
Solo/normas
Microbiologia do Solo
Poluentes do Solo/efeitos adversos
Poluentes do Solo/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 0 (Soil Pollutants)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  6 / 40603 MEDLINE  
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[PMID]:29431315
[Au] Autor:Shamilishvili GA; Abakumov EV; Gabov DN; Alekseev II
[Ti] Título:[Features of fractional composition of polycyclic aromatic hydrocarbons and multielement contamination of soils of urban territories and their hygienic characteristics (on the example of soils of functional zones of Saint-Petersburg)].
[So] Source:Gig Sanit;95(9):827-37, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:This study is devoted to the investigation of quantitative and qualitative composition and distribution of polycyclic aromatic hydrocarbons (PAHs) in urban soils on the example of recreational, residential and industrial areas of Saint-Petersburg (Russia). The evaluation of soil contamination levels with heavy metals and metalloids of the first and second classes of hazard is given as well. Total PAH content in soils of the studied area in most cases exceeds international soil quality guideline values (1 mg/kg), varying from 0.67 to 17.45 mg/kg. In most samples benzo[a] pyrene concentrations were found to be higher than MPC for this substance in soil. Calculated BaP-equivalents of PAHs indicate to the high carcinogenic risk for health, associated with soil contamination. Mean PAH concentrations in soil differ authentically between various types of functional zones and in the whole of the city. The significant positive correlation between soil organic content and PAH levels in soils was revealed in most samples. Calculated values of the total index of soil contamination (Zc) by heavy metals and metalloids were characterized by low values (47.28-121.14), that corresponds to the category of dangerous pollution (32 < Z < 128).
[Mh] Termos MeSH primário: Carcinógenos
Metais Pesados/análise
Hidrocarbonetos Aromáticos Policíclicos/análise
Saúde Pública
Poluentes do Solo
Solo/química
[Mh] Termos MeSH secundário: Carcinógenos/análise
Carcinógenos/toxicidade
Monitoramento Ambiental/métodos
Monitoramento Ambiental/estatística & dados numéricos
Poluição Ambiental/efeitos adversos
Poluição Ambiental/análise
Poluição Ambiental/prevenção & controle
Seres Humanos
Saúde da População/estatística & dados numéricos
Saúde Pública/métodos
Saúde Pública/normas
Federação Russa/epidemiologia
Poluentes do Solo/análise
Poluentes do Solo/química
Poluentes do Solo/toxicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carcinogens); 0 (Metals, Heavy); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Soil); 0 (Soil Pollutants)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  7 / 40603 MEDLINE  
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[PMID]:29430914
[Au] Autor:Alekseev II; Abakumov EV; Shamilishvili GA; Lodygin ED
[Ti] Título:[Heavy metals and hydrocarbons content in soils of settlements of the Yamal-Nenets autonomous region].
[So] Source:Gig Sanit;95(9):818-21, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:In August 2015 there were executed investigations on the study of the soils diversity of the Yamal-Nenets Autonomous Okrug. One of the directions of this work got be the study of urban soils of settlements of the Yamal-Nenents Autonomous Okrug. The sectors for the observation were settlement of Harsaim, village Aksarka, city of Salekhard, settlement Harp and city of Labytnangi. About 20 soil samples were collected during the field work. Samples were collected from a depth of 0-5 cm and 5-20 cm. Heavy metals (HM) were detected with the use of X-ray fluorescent analyzer "Spectroscan-MAX". The HM content values were compared with the corresponding Approxible Permissible Concentrations and Maximum Allowable Concentrations (MAC) adopted in Russia. Hydrocarbons content was determined by gravimetric method. Values of the hydrocarbons content in studied soils were compared with the existing regulations of the Russian Federation. The levels of soil contamination by hydrocarbons were determined. The study of soil samples from different settlements allowed to reveal characteristic features of soil contamination of separate settlements by HM and hydrocarbons and to compare them against each other. The vast majority of samples are characterized by arsenic exceedance of MAC, which should indicate to a high regional background of this element. For a more adequate assessment of the Zc meaning as the value of the total pollution index of soils there were used not only arithmetical average values of the coefficients of the chemical composition concentration (Kc), but also their average geometric values. According to levels of total soil contamination most of soil samples are characterized as non-hazardous (Zc<16). Calculation of soil pollution index showed that the most of soil samples have values less than 1. It characterizes soils as unpolluted. Statistical processing of obtained data in the media of the analytical software interface STATISTICA 10 showed a statistically significant difference in the content ofHM and hydrocarbons for the layer of 0-20 cm of the soils for three elements (Cu, Zn, Ni).
[Mh] Termos MeSH primário: Arsênico/análise
Monitoramento Ambiental
Indústrias Extrativas e de Processamento
Hidrocarbonetos/análise
Metais Pesados/análise
[Mh] Termos MeSH secundário: Monitoramento Ambiental/métodos
Monitoramento Ambiental/estatística & dados numéricos
Indústrias Extrativas e de Processamento/métodos
Indústrias Extrativas e de Processamento/normas
Seres Humanos
Concentração Máxima Permitida
Saúde da População
Saúde Pública/métodos
Saúde Pública/normas
Federação Russa/epidemiologia
Solo/química
Poluentes do Solo/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hydrocarbons); 0 (Metals, Heavy); 0 (Soil); 0 (Soil Pollutants); N712M78A8G (Arsenic)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


  8 / 40603 MEDLINE  
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[PMID]:29381768
[Au] Autor:Meireles RC; Teixeira JPG; Solar R; Vasconcelos BNF; Fernandes RBA; Lopes LE
[Ad] Endereço:Pós-graduação em Biologia Animal, CCB, Universidade Federal de Viçosa - Campus Viçosa, Viçosa, Minas Gerais, Brazil.
[Ti] Título:Soil attributes drive nest-site selection by the campo miner Geositta poeciloptera.
[So] Source:PLoS One;13(1):e0192185, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Substrate type is a key-factor in nest-site selection and nest architecture of burrowing birds. However, little is known about which factors drive nest-site selection for these species, especially in the tropics. We studied the influence of soil attributes on nest-site selection by the campo miner Geositta poeciloptera, an open grassland bird that builds its nests within soil cavities. For all nests found, we measured the depth of the nest cavity and the resistance of the soil to penetration, and identified the soil horizon in which the nest was located. In soil banks with nests, we collected soil samples for granulometric analysis around each nest cavity, while in soil banks without nests we collected these samples at random points. From 43 nests found, 86% were located in the deeper soil horizons (C-horizon), and only 14% in the shallower horizons (B-horizon). Granulometric analysis showed that the C-horizons possessed a high similar granulometric composition, with high silt and low clay contents. These characteristics are associated with a low degree of structural development of the soil, which makes it easier to excavate. Contrarily, soil resistance to penetration does not seem to be an important criterion for nest site selection, although nests in more resistant the soils tend to have shallower nest cavities. Among the soil banks analyzed, 40% of those without cavities possessed a larger proportion of B-horizon relative to the C-horizon, and their texture was more clayey. On the other hand, almost all soil banks containing nest cavities had a larger C-horizon and a silty texture, indicating that soil attributes drive nest-site selection by G. poeciloptera. Thus, we conclude that the patchy distribution of G. poeciloptera can attributed to the infrequent natural exposure of the C-horizon in the tropical region, where well developed, deep and permeable soils are more common.
[Mh] Termos MeSH primário: Comportamento de Nidação
Passeriformes/fisiologia
Solo
[Mh] Termos MeSH secundário: Animais
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Soil)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180131
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0192185


  9 / 40603 MEDLINE  
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[PMID]:29377943
[Au] Autor:Liang JF; An J; Gao JQ; Zhang XY; Yu FH
[Ad] Endereço:School of Nature Conservation, Beijing Forestry University, Beijing, China.
[Ti] Título:Effects of arbuscular mycorrhizal fungi and soil nutrient addition on the growth of Phragmites australis under different drying-rewetting cycles.
[So] Source:PLoS One;13(1):e0191999, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The frequency of soil drying-rewetting cycles is predicted to increase under future global climate change, and arbuscular mycorrhizal fungi (AMF) are symbiotic with most plants. However, it remains unknown how AMF affect plant growth under different frequencies of soil drying-rewetting cycles. We subjected a clonal wetland plant Phragmites australis to three frequencies of drying-rewetting cycles (1, 2, or 4 cycles), two nutrient treatments (with or without), and two AMF treatments (with or without) for 64 days. AMF promoted the growth of P. australis, especially in the 2 cycles of the drying-rewetting treatment. AMF had a significant positive effect on leaf mass and number of ramets in the 2 cycles of the drying-rewetting treatment with nutrient addition. In the 2 cycles of drying-rewetting treatment without nutrient addition, AMF increased leaf area and decreased belowground to aboveground biomass ratio. These results indicate that AMF may assist P. australis in coping with medium frequency of drying-rewetting cycles, and provide theoretical guidance for predicting how wetland plants respond to future global climate change.
[Mh] Termos MeSH primário: Micorrizas/crescimento & desenvolvimento
Poaceae/crescimento & desenvolvimento
Solo
[Mh] Termos MeSH secundário: Zonas Úmidas
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Soil)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191999


  10 / 40603 MEDLINE  
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[PMID]:29377926
[Au] Autor:Pan P; Zhao F; Ning J; Zhang L; Ouyang X; Zang H
[Ad] Endereço:College of Forestry, Jiangxi Agricultural University, Nanchang, China.
[Ti] Título:Impact of understory vegetation on soil carbon and nitrogen dynamic in aerially seeded Pinus massoniana plantations.
[So] Source:PLoS One;13(1):e0191952, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Understory vegetation plays a vital role in regulating soil carbon (C) and nitrogen (N) characteristics due to differences in plant functional traits. Different understory vegetation types have been reported following aerial seeding. While aerial seeding is common in areas with serious soil erosion, few studies have been conducted to investigate changes in soil C and N cycling as affected by understory vegetation in aerially seeded plantations. Here, we studied soil C and N characteristics under two naturally formed understory vegetation types (Dicranopteris and graminoid) in aerially seeded Pinus massoniana Lamb plantations. Across the two studied understory vegetation types, soil organic C was significantly correlated with all measured soil N variables, including total N, available N, microbial biomass N and water-soluble organic N, while microbial biomass C was correlated with all measured variables except soil organic C. Dicranopteris and graminoid differed in their effects on soil C and N process. Except water-soluble organic C, all the other C and N variables were higher in soils with graminoids. The higher levels of soil organic C, microbial biomass C, total N, available N, microbial biomass N and water-soluble organic N were consistent with the higher litter and root quality (C/N) of graminoid vegetation compared to Dicranopteris. Changes in soil C and N cycles might be impacted by understory vegetation types via differences in litter or root quality.
[Mh] Termos MeSH primário: Carbono/metabolismo
Nitrogênio/metabolismo
Pinus/metabolismo
Plantas/metabolismo
Solo/química
[Mh] Termos MeSH secundário: Biomassa
Carbono/química
Nitrogênio/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Soil); 7440-44-0 (Carbon); N762921K75 (Nitrogen)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191952



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