scholarly journals Study on the growth and tolerance ability of Polygonum hydropiper L. and Hymenachne acutigluma (Steud.) Gilliland on Pb and Cd polluted soil

2014 ◽  
Vol 6 (3) ◽  
pp. 298-302
Author(s):  
Thi Thu Ha Chu
Keyword(s):  
Plant Species ◽  
Contaminated Soil ◽  
Alluvial Soil ◽  
Dry Weight ◽  
Soil Samples ◽  
Polygonum Hydropiper ◽  
Young Leaves ◽  
Lead Recycling ◽  
Clean Contaminated ◽  
The Impact

Two plant species including Polygonum hydropiper L. and Hymenachne acutigluma (Steud.) Gilliland were investigated in their resistance to lead (Pb) and cadmium (Cd) pollution in the soil. Lead-contaminated soil samples were collected from the lead recycling village Dong Mai, Chi Dao commune, Van Lam district, Hung Yen province, Vietnam that had Pb level up to 192,185 mg.kg-1, dry weight (DW). Cadmium-contaminated soil samples were due to supplement of CdCl2.21/2H2O to alluvial soil. Results showed that both species were highly resistant to Pb, however P.hydropiper was better. Similarly, the Cd resistance was higher for P.hydropiper than for H.acutigluma. No morpho-abnormalities of P.hydropiper regarding the impact of lead were recorded, whereas for H.acutigluma, the young leaves had white colour after two months of planting in soil containing lead levels of 192,185 mg.kg-1. The response of both species with Cd in soils included yellowing leaves, withering branches and even dying after 5-15 days exposed to Cd. Lead contents accumulated in above-ground parts of both plants were up to 4,650 and 3,161 mg.kg-1, DW, corresponding to P.hydropiper and H.acutigluma. From the research results on lead resistance and accumulation of two plant species studied, it is suggested that the two species are lead hyperaccumulators can be used for phytoremediation technology to clean contaminated soil.

scholarly journals Accumulation of Arsenic and Heavy Metals in Native and Cultivated Plant Species in a Lead Recycling Area in Vietnam

Minerals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 132 ◽  
Author(s):  
Ha Chu ◽  
Tu Vu ◽  
Tam Nguyen ◽  
Ha Nguyen
Keyword(s):  
Heavy Metals ◽  
Plant Species ◽  
Contaminated Soil ◽  
Aboveground Biomass ◽  
Native Plants ◽  
Dry Weight ◽  
Soil Samples ◽  
Rice Grains ◽  
Cultivated Plant ◽  
Lead Recycling

This study was conducted to determine the soil contamination and the accumulation of arsenic (As) and heavy metals including chromium (Cr), copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) in 15 native and cultivated plant species in a Pb recycling area of Dong Mai village, Hung Yen Province, Vietnam. The analysis of 32 soil samples collected from seven different sites in the study area revealed that the contents of Al, Fe, As, Cr, Cu, Zn, Cd, and Pb in the soils ranged from 6200–32,600, 11,300–55,500, 5.4–26.8, 24.9–290, 66.0–252, 143–455, 0.71–1.67, and 370–47,400 mg/kg, respectively. The contents of As, Cr, Cu, Zn, Cd, and Pb in rice grains and the shoots of 15 plant species ranged from 0.14–10.2, 1.00–10.2, 5.19–23.8, 34.7–165, 0.06–0.99, and 2.83–1160 mg/kg-dry weight (DW), respectively. Hymenachne acutigluma (Steud.) Gilliland, a potential hyperaccumulator of Pb (1160 mg/kg–DW), is considered the best candidate for phytoremediation of Pb-contaminated soil. The cultivation of rice and vegetables, and the use of some native plants for food for humans, pigs, and cattle should be managed with consideration of the accumulation of Pb in their aboveground biomass.

scholarly journals Effect of fertilizer on lead (Pb) accumulation ability of Polygonum hydropiper L.

2018 ◽  
Vol 9 (2) ◽  
pp. 67-72
Author(s):  
Thi Thu Ha Chu ◽  
Phuong Hanh Nguyen ◽  
Thi Hien Nguyen ◽  
Thi Van Anh Ha ◽  
The Cuong Nguyen ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Organic Fertilizer ◽  
Alluvial Soil ◽  
Dry Weight ◽  
Polygonum Hydropiper ◽  
Pb Accumulation ◽  
Npk Fertilizer ◽  
The One ◽  
Accumulation Ability ◽  
Ground Part

Polygonum hydropiper L. was cultivated on alluvial soil (Pb = 2.6 mg/kg, dry weight) and Pb contaminated soil (Pb = 1,380 mg/kg dry weight) without and with amendment of 2 g organic fertilizer/kg soil and 2.5; 5.0; 10.0 g NPK fertilizer/1kg soil. After 45 days of cultivation, the growth in height and biomass of P. hydropiper in Pb contaminated soil without amendment of fertilizer was lower than that in alluvial soil, but the Pb content in the above-ground part of the P. hydropiper was higher. In the formula 4, on Pb contaminated soil (Pb = 1,380 mg/kg dry weight), when amending 2 g of microbiological organic fertilizer + 5 g NPK fertilizer per 1 kg of soil (with the total nutrients amended were: N = 0.25, P2O5= 0.52, K2O = 0.15, and organic matter = 0.21 g/kg soil), growth of P. hydropiper was optimal (its height and biomass were up to 244.0% and 284.9% in comparison to that of before experiment) and their Pb extraction potential was promoted to the highest level among the formulae used. The average level of Pb accumulated in the above-ground part of P. hydropiper cultivated at formula 4 was 1,098.3 mg/kg dry weight (DW) after 45 days of cultivation that was 1.6 time higher than the one of formula 2 without fertilizer amendment (687.8 mg/kg DW). The potential of Pb extracted and stored in the above-ground part of P. hydropiper cultivated at formula 4 after 45 days was 479.2 g/ha that was 2.85 time higher than the one of formula 2 without fertilizer amendment (168.02 g/ha). Nghể răm Polygonum hydropiper L. được trồng theo 5 công thức trên đất phù sa không ô nhiễm chì (Pb = 2,6 mg/kg khô) và đất ô nhiễm chì (Pb = 1380 mg/kg khô)không bón phân và có bón phân với các liều lượng 2 g phân hữu cơ vi sinh/1 kg đất và 2,5; 5,0; 10,0 g phân NPK /1 kg đất. Sau 45 ngày thí nghiệm trồng cây, tăng trưởng về chiều cao và sinh khối của cây trên đất ô nhiễm Pb không bón phân thấp hơn trên đất phù sa, nhưng hàm lượng Pb trong phần trên mặt đất của cây cao hơn. Ở công thức (CT) 4, trên đất ô nhiễm chì (Pb = 1380 mg/kg khô) khi bón phân với liều lượng 2 g hữu cơ + 5 g NPK/1 kg đất (với tổng hàm lượng dinh dưỡng được bón là: N = 0,25, P2O5= 0,52, K2O = 0,15, và chất hữu cơ = 0,21 g/kg đất) thì tăng trưởng của câynghể răm đạt tối ưu (chiều cao và khối lượng đạt 244,0 % và 284, 9% so với trước thí nghiệm) và tiềm năng hút thu Pb của chúng cũng được thúc đẩy cao nhất trong số các công thức được sử dụng. Lượng Pb trung bình tích lũy trong phần trên mặt đất của nghể răm ở CT 4 đạt 1.098,3 mg/kg khô sau 45 ngày trồng, cao gấp 1,6 lần so với cây ở công thức 2 không bón phân (687,8 mg/kg khô). Khả năng loại bỏ Pb từ đất ô nhiễm của nghể răm khi được bón phân ở CT4 đạt 479,2 g/ha sau 45 ngày trồng, cao gấp 2,85 lần so với cây ở CT 2 không bón phân (168,02 g/ha).

Evaluation of Nanotechniques and Conventional Techniques for the Removal of Dioxins

2018 ◽  
Vol 9 (1) ◽  
pp. 79-84
Author(s):  
Vaishali V. Shahare ◽  
Rajni Grover ◽  
Suman Meena
Keyword(s):  
Soil Sample ◽  
Human Health ◽  
Surface Area ◽  
Contaminated Soil ◽  
Conventional Treatment ◽  
Volume Ratio ◽  
Soil Samples ◽  
Dioxins And Furans ◽  
Palladized Iron ◽  
The Impact

Background: The persistent dioxins/furans has caused a worldwide concern as they influence the human health. Recent research indicates that nonmaterial may prove effective in the degradation of Dioxins/furans. The nanomaterials are very reactive owing to their large surface area to volume ratio and large number of reactive sites. However, nanotechnology applications face both the challenges and the opportunities to influence the area of environmental protection. Objective: i) To study the impact of oil mediated UV-irradiations on the removal of 2,3,7,8-TCDD, 2,3,7,8-TCDF, OCDD and OCDF in simulated soil samples. ii) To compare the conventional treatment methods with the modern available nanotechniques for the removal of selected Dioxins/furans from soil samples. Methods: The present work has investigated an opportunity of the degradation of tetra and octachlorinated dioxins and furans by using oil mediated UV radiations with subsequent extraction of respective dioxins/furans from soils. The results have been compared with the available nanotechniques. Results: The dioxin congeners in the simulated soil sample showed decrease in concentration with the increase in the exposure time and intensity of UV radiations. The dechlorination of PCDD/Fs using palladized iron has been found to be effective. Conclusion: Both the conventional methods and nanotechnology have a dramatic impact on the removal of Dioxins/furans in contaminated soil. However, the nanotechniques are comparatively costlier and despite the relatively high rates of PCDDs dechlorination by Pd/nFe, small fraction of the dioxins are recalcitrant to degradation over considerable exposure times.

scholarly journals Small variations of soil properties control fire-induced water repellency .

2014 ◽  
Vol 4 ◽  
Author(s):  
Jorge Mataix-Solera ◽  
Lorena M. Zavala ◽  
Antonio Jordán ◽  
Gema Bárcenas-Moreno ◽  
Elena Lozano ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Plant Species ◽  
Water Repellency ◽  
Soil Samples ◽  
Soil Types ◽  
Water Repellent ◽  
Key Factors ◽  
The Impact

Fire induced soil water repellency (WR) is controlled by many different factors (temperature reached, amount and type of fuel, etc.). Soil properties may determine the occurrence and intensity of this property in burned soils. The objectives of this paper are to make advances in the study of soil properties as key factors controlling the behaviour of fire-induced WR, and to study the impact of pre-fire SOM content and SOM quality in fire-induced soil WR. In this research, experimental laboratory burnings were carried out using soil samples from different sites with different lithologies, soil types and plant species. Soil samples taken from the same site differ only in quantity and quality of soil organic matter, as they were collected from under different plant species. All soil samples were heated in a muffle furnace at 200, 250, 300 and 350 ºC without the addition of any fuel load. WR was measured using the water drop penetration time test (WDPT). The results showed significant differences between soil types and plant species, indicating that small differences in soil properties may act as key factors controlling the development and persistence of WR reached, with burned soil samples ranging from wettable to extremely water repellent. The main soil property controlling the response was texture, specifically sand content. The quality of organic matter was also observed to have an effect, since soil samples from the same site with similar organic matter contents, but taken from beneath different plant species, showed different WR values after burning.

scholarly journals Phytoremediation potential of some abundantly growing indigenous herbs of crude oil contaminated sites

2021 ◽  
Vol 42 (1) ◽  
pp. 51-61
Author(s):  
S. Akram ◽  
◽  
H. Deka ◽  
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Soil Samples ◽  
Xanthium Strumarium ◽  
Ageratum Conyzoides ◽  
Oil And Grease ◽  
Polygonum Hydropiper ◽  
Chemical Profiles ◽  
Total Oil

Aim: To study the total oil and grease (TOGs) removal potential of three abundant herb species of crude oil contaminated sites, namely Xanthium strumarium (L.), Ageratum conyzoides (L.) and Polygonum hydropiper (L.) from oil contaminated soils. Methodology: The pot experiment was carried out by taking soil samples of crude oil contaminated agricultural field. For each experimental plant, three replicas were maintained and a similar control setup was maintained without plants for comparing the results. Another control set up was maintained in non-contaminated soils to compare the plant growth parameters. Total oil and grease (TOG) contents, physico-chemical profiles of contaminated soil, plant growth/productivity parameters and functional groups were analyzed following the standard methods. Results: The results showed that total oil and grease (TOG) contents decreased significantly after treatments by plants against the initial level and control. Plant height, number of leaves, chlorophyll contents and biomass were found to be lower in all the three plant species that were grown in contaminated soil as against the control treatment. The improved physico-chemical profiles of contaminated soil samples after treatment indicated the positive effect of plants in treated soil samples. FTIR data revealed difference in peak intensities and the presence of petroleum hydrocarbons in plants that were grown in oil-contaminated soils. Interpretation: The herb species Xanthium strumarium, Ageratum conyzoides and Polygonum hydropiper showed the potential for removal of hydrocarbons from crude oil contaminated soil. Key words: Crude oil, Hydrocarbons, Indigenous herbs, Phytoremediation

scholarly journals Impact of Mycorrhizal Fungal Inoculum on the Growth of Fenugreek in Different Soil Samples

2021 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Sana Kanwal ◽  
Muhammad Rashid ◽  
Sana Ghafar ◽  
Komal Nawwal ◽  
Sana Ajmal ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Clay Soil ◽  
Dry Weight ◽  
Soil Samples ◽  
Symbiotic Association ◽  
Aromatic Plant ◽  
Fresh Weight ◽  
Trigonella Foenum Graecum ◽  
And Control ◽  
The Impact

Fenugreek (Trigonella foenum-graecum) is an aromatic plant that yields secondary metabolites, continuously used for the readiness of food and medicines. The current study is conducted to assess the impact of inoculation of mycorrhiza on the growth of Trigonella foenum-graecum in different soil samples. The current study presents two arrangements of treatment in experimental and control pots. Different soil samples were obtained from different areas for experimental and control pots. In experimental pots, mycorrhiza fungi inoculation is introduced. The six pots were filled with each soil sample. Out of the six pots, three were control pots, and three were inoculated pots. In each pot, 6 kg soil was filled. It was observed that there were more leaves in the experimental (inoculated) pots and fewer in the fenugreek (non-inoculated) pots. The fresh and dry weight of the shoots and roots was taken. However, it was examined that the fresh weight of the shoots and roots of the inoculated pots was more compared to the non-inoculated pots. But the difficulty is seen in the clay control pots of clay soil because of the compactness of the clay soil. It was concluded that fenugreek showed more growth in inoculated pots compared to non-inoculated pots. It was also concluded that mycorrhizal fungal showed symbiotic association with fenugreek plants.

Hydrocarbons and sterols in marine sediments and soils at Davis Station, Antarctica: a survey for human-derived contaminants

1995 ◽  
Vol 7 (2) ◽  
pp. 137-144 ◽  
Author(s):  
Graham Green ◽  
Peter D. Nichols
Keyword(s):  
Dry Weight ◽  
Soil Samples ◽  
Hydrocarbon Contamination ◽  
Storage Tanks ◽  
Human Origin ◽  
Sewage Outfall ◽  
Fuel Storage ◽  
Polycyclic Aromatic ◽  
The Impact ◽  
Biomarker Hydrocarbons

A survey of hydrocarbons and sterols in marine and shoreline sediments was undertaken adjacent to Davis Station in Princess Elizabeth Land, Prydz Bay, Eastern Antarctica to determine the impact of a human settlement, including a sewage outfall on the local marine environment. Soil samples from selected locations onshore were also analysed to ascertain the extent of hydrocarbon contamination emanating from fuel storage facilities and other potential sources. The faecal sterol coprostanol was detected at 13.2 μg g−1 (60% of total sterols) in sediment adjacent to the Davis sewage outfall and up to 5.0 μg g−1 on the shoreline at Davis Beach. These concentrations indicate significant faecal contamination. The absence of coprostanol in faeces from the local wildlife confirms a human origin for this sewage biomarker. Hydrocarbons on the shoreline near Davis were present at up to 5.5 μg g−1 (dry weight of sediment). Biomarker profiles indicate an anthropogenic origin for these hydrocarbons. Onshore, degraded hydrocarbons derived from Special Antarctic Blend distillate were found at relatively high levels in soils at the fuel storage depot (up to 220 μg g−1). The source of these hydrocarbons appeared to be spillage from fuel storage tanks with possible contributions from fuel pipeline leakage and vehicle useage. Concentrations of polycyclic aromatic hydrocarbons in the soils were very low, generally below 1 ng g−1 (dry weight of sediment) for individual compounds.

scholarly journals Effect of Soil Type and Nitrogen Rate on Growth of Annual and Perennial Landscape Plants in Florida

2014 ◽  
Vol 24 (6) ◽  
pp. 724-730 ◽  
Author(s):  
Kimberly A. Moore ◽  
Amy L. Shober ◽  
Gitta Hasing ◽  
Christine Wiese ◽  
Nancy G. West
Keyword(s):  
Plant Species ◽  
Warm Season ◽  
Dry Weight ◽  
Soil Condition ◽  
Soil Conditions ◽  
Perennial Species ◽  
Aesthetic Quality ◽  
Shoot Dry Weight ◽  
Quality Response ◽  
The Impact

Previous research indicated that acceptable quality annual and perennial plant species can be grown in the landscape with low nitrogen (N) inputs. However, information on the impact of soil conditions and N use by ornamental plants grown in central Florida is lacking in the literature. Our objective was to evaluate plant growth and quality response of eight warm-season annuals, seven cool-season annuals, and four herbaceous perennial species to a range of N fertilizer rates when plants were grown in landscape beds containing native field soil or subsoil fill. A slow-release N source (42N–0P–0K) was applied every 12 weeks at annual N rates of 3, 5, or 7 lb/1000 ft2 for a period of 18 weeks (annual species) or 1, 3, or 5 lb/1000 ft2 for a period of 54 weeks (perennial species). Plants were evaluated for aesthetic quality every 6 weeks and shoot dry weight was measured at completion of the experiment. Dry weight production and aesthetic quality of most species evaluated was unaffected by N rate. For several species, shoot dry weight was higher when planted in the field plots containing native soil [alyssum (Lobularia maritima) ‘Bada Bing White’ wax begonia (Begonia ×semperflorens-cultorum), dahlberg daisy (Thymophylla tenuiloba), ‘Survivor Hot Pink’ geranium (Pelargonium ×hortorum), gomphrena (Gomphrena globosa), ‘Blue Puffs Improved’ (‘Blue Danube’) ageratum (Ageratum houstonianum), blanket flower (Gaillardia pulchella), goldenrod (Solidago chapmanii), ‘Mystic Spires’ salvia (Salvia longispicata ×farinacea)]. Quality response to soil condition was mixed over the course of the study. Several species performed as well (or better) in the field as when planted in the subsoil fill soils. These results illustrate that some landscape plant species are able to survive and thrive under various soil and fertility conditions. These “tougher” species may be good choices for installation in landscapes with marginal native soils or disturbed urban landscape soils.

THE EFFECT OF BACTERIAL STRAINS ON THE ENZYMATIC ACTIVITY OF SOILS IN IMPACT ZONE OF ATAMAN LAKE

2020 ◽  
Author(s):  
V.V. Zinchenko ◽  
◽  
E.S Fedorenko ◽  
A.V Gorovtsov ◽  
T.M Minkina ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Dehydrogenase Activity ◽  
Contaminated Soil ◽  
Model Experiment ◽  
Impact Zone ◽  
Bacterial Strains ◽  
The Impact

As a result of the model experiment, an increase in the enzymatic activity of meadow chernozem of the impact zone of Ataman Lake with the introduction of a strains mixture of metal-resistant microorganisms into the soil was established. The experiment has shown that the application of bacterial strains increases the dehydrogenase activity of contaminated soil by 51.8% compared to the variant without remediation

The yield of perennial grass stands on drained organic soils of Steppe

2016 ◽  
Vol 1 (90) ◽  
pp. 92-97
Author(s):  
I.T. Slusar ◽  
V.A. Serbenyuk ◽  
A.N. Gera ◽  
A.P. Solyanik ◽  
A.A. Tarasenko
Keyword(s):  
Zinc Sulphate ◽  
Foliar Application ◽  
Perennial Grass ◽  
Mineral Fertilizer ◽  
Dry Weight ◽  
Research Area ◽  
Organic Soils ◽  
Growth Promoters ◽  
Cobalt Sulfate ◽  
The Impact

Research on the impact of the introduction of micro fertilizers and growth promoters on a background of mineral fertilizer and without N90R45К120 spent on old peat in shallow carbonate floodplain r.Supiy, Yahotyn Kyiv region. Power peat horizon about 60-70 cm, 7,4-7,6 pH of the aqueous extract, stupas schedule 56-60%, density 0,49-0,52 assembly soil, total nitrogen content (%) - 1.9; gross forms of phosphorus - 0,4, potassium 0.2, 20% lime. In experiments studying biological rehoplant, radustym, Biolan, emistim, Jets, humisol, plantafol, radyfarm and micronutrients: copper, boric acid, manganese sulphate, zinc sulphate, potassium humates. Treatment drugs conducted in the spring by spraying mixtures. Space research area of 60 m2, three-time repetition. It is established that the use of growth stimulants and micronutrients in the background N90R45К120 provided the highest yield mixtures of years, against making BIOLan - 9.9 t / ha Radyfarmu - 9.6 t / ha Radostymu 9.3 t / ha dry weight. In areas for making other preparations were intermediate yield growth rates - 0.5 - 2.0 t / ha dry weight. Also good gains herbage yields obtained by making all kinds of micronutrients and growth stimulants in the background without making makrodobryv which was within 5.3 - 6.9 t / ha to control without fertilization - 4.5 t / ha dry weight. In deep peat copper fertilizer (25 kg / ha of copper sulphate or 5 kg / ha pirytnoho cinders) in all zones should be making every 3-4 years, and zinc, cobalt and molybdenum advisable to make time for the growing season, spring, by foliar application in such numbers: ammonium molibdenovokyslyy - 0.3 kg / ha; cobalt sulfate - 3 kg / ha zinc sulphate 0.5 kg / ha or placers these salts should be mixed with major fertilizer.

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