نتایج جستجو برای: contaminated plots.

تعداد نتایج: 66403  

Journal: :تحقیقات آب و خاک ایران 0
سیما محمدی دانشجوی دکتری گروه خاک ‏شناسی دانشگاه تربیت مدرس مهدی همایی استاد گروه خاک‏ شناسی دانشگاه تربیت مدرس سید حمیدرضا صادقی استاد گروه مهندسی آبخیزداری دانشگاه تربیت مدرس

a quantitative evaluation of the effects of contamination of soil with petroleum, on thesoil physical properties, is required for optimal soil and water resources management. theobjective followed in the present study was to investigate runoff generation in soilscontaminated with kerosene and gas oil. towards this end, variables of runoffcommencement, runoff coefficient, variations in runoff du...

Journal: :Applied animal behaviour science 2000
Cooper Gordon Pike

Experiments were conducted to investigate which environmental cues were used by sheep when discriminating against patches of pasture contaminated with faeces. The influence of the spatial distribution of contaminated patches and the parasite infection status of sheep on avoidance of contaminated patches and ingestion of parasite larvae was also investigated. In experiment 1, sheep infected with...

2013
C. N. Mbah

Contamination of soil with toxic substances can degrade its capacity to grow plants. A Randomized Complete Block Design (RCBD) experiment was set up in 2005 and 2006 to evaluate the effect of organic wastes on the physical properties and maize (Zea mays L) yield of spent oil contaminated (SOC) ultisol in Abakaliki South eastern Nigeria. The wastes comprising poultry droppings (PD) and Rice husk...

Journal: :Journal of food protection 2004
Mahbub Islam Michael P Doyle Sharad C Phatak Patricia Millner Xiuping Jiang

Outbreaks of enterohemorrhagic Escherichia coli O157:H7 infections associated with lettuce and other leaf crops have occurred with increasing frequency in recent years. Contaminated manure and polluted irrigation water are probable vehicles for the pathogen in many outbreaks. In this study, the occurrence and persistence of E. coli O157:H7 in soil fertilized with contaminated poultry or bovine ...

2015
Bart Vandecasteele Frederic Piesschaert Bruno De Vos Gijs Du Laing

Changes in the hydrology of sediments in tidal marshes or landfills may affect the uptake of metals in the vegetation. Leaf and stem samples of Salix cinerea (grey sallow) were collected during four consecutive growing seasons at six contaminated plots on a polluted dredged sediment landfill and one plot on an uncontaminated reference site. The first three contaminated plots were already emerge...

Journal: :International journal of phytoremediation 2010
Mylor Ngoy Shutcha Michel Mpundu Mubemba Michel-Pierre Faucon Michel Ngongo Luhembwe Marjolein Visser Gilles Colinet Pierre Meerts

This study evaluates the feasibility of using the grass species Rendlia altera, Monocymbium ceresiiforme, Cynodon dactylon, and amendments (compost and lime) for the phytostabilisation of soils contaminated by Cu in the province of Katanga (Democratic Republic of Congo). Species were grown on control and Cu-contaminated plots (artificially contaminated with 2,500 mg kg(-1) Cu) unamended (NA), a...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2002
Michael F Cohen Jolene Williams Hideo Yamasaki

The widely distributed water fern Azolla was investigated for use as an amendment in the bioremediation of fuel-contaminated environments. In a field experiment Azolla pinnata as well as Pistia stratiotes and Salvinia molesta were applied to plots containing soil that had been surface-contaminated with diesel fuel (2.4 L m(-2)) and flooded with water. The plants quickly died and bacterial flocs...

Journal: :Journal of invertebrate pathology 1999
V D'Amico J S Elkinton J D Podgwaite J M Slavicek M L McManus J P Burand

The gypsy moth (Lymantria dispar L.) nuclear polyhedrosis virus was genetically engineered for nonpersistence by removal of the gene coding for polyhedrin production and stabilized using a coocclusion process. A beta-galactosidase marker gene was inserted into the genetically engineered virus (LdGEV) so that infected larvae could be tested for its presence using a colorimetric assay. In 1993, L...

Journal: :Agriculture 2021

A Monviso clone has been applied to promote PCB degradation in a soil historically contaminated by polychlorinated biphenyls (PCBs) and heavy metals (HMs). The multi-contaminated area is located Southern Italy. PCBs, HMs, the microbial community (abundance, viability, structure) were analysed selected plots of poplar-treated area. At 900 days after poplar planting, chemical analyses showed that...

2002
D. Delille E. Pelletier B. Delille F. Coulon

There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre Adélie (Antarctica) with the objective of determining the long-term effectiveness of two bioremediation agents on total and hydrocarbondegrading microbial assemblages under severe Antarctic conditi...

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