Etiological structure of acute gastrointestinal infections in children and analysis of their clinical features depending on etiology

Acute gastroenteritis (AGE) often causes different complications in younger children, which can lead to hospital admission. Purpose — to explore the etiological structure of infectious gastroenteritis in children under 5 years and severity clinical features of the disease depending on the pathogen. Materials and methods. 978 children with AGE were enrolled in the study. The age of participants was 0–5 years, they all were patients of infectious diseases department of Kyiv city children's hospital No.1 during 2014–2018 years. The division into groups was based on the detected pathogen. Determination of rotavirus antigen was performed by enzyme$linked immunosorbent assay (ELISA), other pathogens were identified by nucleic acid extraction and testing by TAC (TaqMan Array Cards). The clinical features severity according to Vesicari's scale were analyzed during the study. Results. Among children who were enrolled in the study the most common pathogen was rotavirus, which was present in 47% of all cases. Norovirus took the second place. Campylobacter was the most common among bacterial pathogens. Rotavirus was more common among children of older age group. Shigella and Campylobacter were two the most common pathogens in younger age group. In group non-rotavirus pathogens the most common were mild and moderate course of the disease, but in group with rotavirus mild course wasn't common. None of children with adenoviral or noroviral infection had mild disease. The most part of AGEs caused by bacterial pathogens had severe course. Conclusions. The leadership of rotavirus infection and an important change in the majority of infections, the introduction of vaccination into the national calendar is highly relevant. Norovirus took the second place in etiological structure of AGE after rotavirus, and that's why developing vaccine against it is an actual problem. According to severity of disease depending on the pathogen, the biggest value for prophylaxis will have development of vaccines against salmonellosis, norovirus and adenovirus. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of these Institutes. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors. Key words: causative agents of acute gastroenteritis, rotavirus, noravirus, severity.

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COMPARISION OF DENTAL SCORING SYSTEM WITH RADIOGRAPHIC SKELETAL SYSTEM IN AGE ESTIMATION

JKCD ◽

10.33279/2307-3934.2019.9103 ◽

2019 ◽

Vol 9 (1) ◽

pp. 9-11

Author(s):

Sadaf Ambreen

Keyword(s):

Age Estimation ◽

Scoring System ◽

Skeletal Age ◽

Chronological Age ◽

Age Group ◽

Dental Age ◽

Scoring Method ◽

Cross Sectional ◽

Study Results ◽

Male Subjects

Objectives: To compare Demirjian Dental scoring method with Greulich-Pyle (GP) Skeletal method of age estimation in pubertal children. Materials and Methods: Sample of the study included 267 male healthy subjects of 11-16 years of age group.. Demirjian Scoring system was utilized to evaluate the orthopantomograms to assess their Dental age and the Hand-Wrist radiographs were analyzed to calculate the skeletal age by utilizing GP atlas. Chronological age was obtained from the date of birth of the subject .Both methods were compared with one another and with the chronological age. It was a cross-sectional study and only healthy male subjects without any clinical abnormalities were included in the study. Results: A total of 267 male subjects of 11-16 years of age group were assessed by Demirjian and Greulich Pyle Methods. Both were compared with Chronological Age. Data obtained was statistically analyzed and the Student “t” test was applied in the study population. The mean difference between Chronolgical age and dental age was 0.69years and that of chronological age and skeletal age was 0.87 years. It was observed from dental age assessment that it does not differ much from the skeletal age. Conclusion: It was concluded that Demirjian method of Age Estimation is more precise than Greulich Pyle method of Age Estimation. Furthermore both methods can be used selectively in Medicolegal cases to access bone age which can be easily correlated to chronological age.

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CLINICAL FEATURES, INDICATIONS AND RESULT OF TRACHEOTOMY

Journal of Medicine and Pharmacy ◽

10.34071/jmp.2017.3.7 ◽

2017 ◽

pp. 50-55

Author(s):

Duc Luu Ngo ◽

Tu The Nguyen ◽

Manh Hung Ho ◽

Thanh Thai Le

Keyword(s):

Clinical Features ◽

University Hospital ◽

Female Ratio ◽

Tube Obstruction ◽

Level Ii ◽

Study Results ◽

Male Female Ratio ◽

Hospital Patients ◽

Level I

Background: This study aims to survey some clinical features, indications and results of tracheotomy at Hue Central Hospital and Hue University Hospital. Patients and method: Studying on 77 patients who underwent tracheotomy at all of departments and designed as an prospective, descriptive and interventional study. Results: Male-female ratio was 4/1. Mean age was 49 years. Career: farmer 44.2%, worker 27.2%, officials 14.3%, student 7.8%, other jobs 6.5%. Respiratory condition before tracheotomy: underwent intubation 62.3%, didn’t undergo intubation 37.7%. Period of stay of endotracheal tube: 1-5 days 29.2%, 6-14 days 52.1%, >14 days 18.7%. Levels of dyspnea before tracheotomy: level I 41.4%, level II 48.3%, level III 0%, 10.3% of cases didn’t have dyspnea. Twenty cases (26%) were performed as an emergency while fifty seven (74%) as elective produces. Classic indications (37.7%) and modern indications (62.3%). On the bases of the site, we divided tracheostomy into three groups: high (0%), mid (25.3%) and low (74.7%). During follow-up, 44 complications occurred in 29 patients (37.7%). Tracheobronchitis 14.3%, tube obstruction 13%, subcutaneous empysema 10.4%, hemorrhage 5%, diffcult decannulation 5.2%, tube displacement 3.9%, canule watery past 2.6%, wound infection 1.3%. The final result after tracheotomy 3 months: there are 33 patients (42.9%) were successfully decannulated. In the 33 patients who were successfully decannulated: the duration of tracheotomy ranged from 1 day to 90 days, beautiful scar (51.5%), medium scar (36.4%), bad scar (12.1%). Conclusions: In tracheotomy male were more than female, adult were more than children. The main indication was morden indication. Tracheobronchitis and tube obstruction were more common than other complications. Key words: Tracheotomy

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Issues of geriatric otolaryngologic emergency have not been widely applied despite increase in geriatric population. (Preprint)

10.2196/preprints.13383 ◽

2019 ◽

Author(s):

Waheed Atilade Adegbiji ◽

Shuaib Kayode Aremu ◽

AbdulAkeem Adebayo Aluko

Keyword(s):

Foreign Body ◽

Head And Neck ◽

Clinical Features ◽

University Teaching ◽

Age Group ◽

Geriatric Population ◽

Female Ratio ◽

Common Diagnosis ◽

Foreign Body Impaction ◽

Nose And Throat

BACKGROUND Issues of geriatric otolaryngologic emergency have not been widely applied despite increase in geriatric population. OBJECTIVE This study aimed at determining prevalence, sociodemographic features, aetiology, clinical features, Complications and sources ofreferral of geriatric otorhinolaryngological, head and neck emergency in our center. METHODS This was a prospective hospital based study of geriatric otorhinolaryngology emergency in the Ear, Nose and Throat Department of Ekiti State University Teaching Hospital. The study was carried out between October 2016 and September 2018. Data were obtained by using pretested interviewers questionnaire.All data were collated and analyzed using SPSS version 18.0. The data were expressed by frequency table, percentage, bar charts and pie charts. RESULTS Geriatric otorhinolaryngology, head and neck emergency accounted for 5.3%. Major prevalence age group was 43.9% in the age group (60-64). There were 38.6% males with male to female ratio of 1:1.5. The main aetiology of geriatric otorhinolaryngology emergency was 29.5% trauma/road traffic accident/foreign body impaction and 25.8% tumour. Main anatomical distribution of geriatric otorhinolaryngology emergency were 38.6% throat diseases and 31.1% ear diseases. The most frequent clinical features were pain in 27.3%, hearing loss in 21.2%, tinnitus in 15.9%, bleeding in 14.4%, difficulty breathing in 12.9% and discharge in 11.4%. Common diagnosis in this study were 15.9% sinonasal tumour, 14.4% upper aerodigestive foreign body impaction, 10.6% earwax impaction and 19.8% otitis externa. Acute presentation (<13 weeks) occurred in 1 week in 74.2% and 2-13 weeks In 19.7%. Commonest time of presentation was daytime in 65.9%. Major sources of referral were 43.2% general practitioner and 31.1% casualty officers. Presentation of geriatric otorhinolaryngology emergency were mainly ear, nose and throat clinic in 59.8% with accident and emergency in 28.8%. Commonest associated comorbid illnesses among the geriatric patients were 18.2% hypertension, 14.4% arthritis and 9.8% diabetes mellitus. CONCLUSIONS Geriatric otorhinolaryngological emergency are common pathology with associated with comorbid illnesses. Detailed clinical assessment are mandatory for effective management outcome.

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Etiological, epidemiological, and clinical features of acute diarrhea in China

Nature Communications ◽

10.1038/s41467-021-22551-z ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Li-Ping Wang ◽

◽

Shi-Xia Zhou ◽

Xin Wang ◽

Qing-Bin Lu ◽

...

Keyword(s):

Clinical Features ◽

Acute Diarrhea ◽

Vibrio Parahaemolyticus ◽

Bacterial Pathogens ◽

Control Measures ◽

Viral Pathogens ◽

Rotavirus A ◽

Positive Rate ◽

Prevention And Control Measures ◽

And Control

AbstractNational-based prospective surveillance of all-age patients with acute diarrhea was conducted in China between 2009‒2018. Here we report the etiological, epidemiological, and clinical features of the 152,792 eligible patients enrolled in this analysis. Rotavirus A and norovirus are the two leading viral pathogens detected in the patients, followed by adenovirus and astrovirus. Diarrheagenic Escherichia coli and nontyphoidal Salmonella are the two leading bacterial pathogens, followed by Shigella and Vibrio parahaemolyticus. Patients aged <5 years had higher overall positive rate of viral pathogens, while bacterial pathogens were more common in patients aged 18‒45 years. A joinpoint analysis revealed the age-specific positivity rate and how this varied for individual pathogens. Our findings fill crucial gaps of how the distributions of enteropathogens change across China in patients with diarrhea. This allows enhanced identification of the predominant diarrheal pathogen candidates for diagnosis in clinical practice and more targeted application of prevention and control measures.

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Association Between Deep Posterior Cervical Paraspinal Muscle Morphology and Clinical Features in Patients With Cervical Ossification of the Posterior Longitudinal Ligament

Global Spine Journal ◽

10.1177/2192568221989655 ◽

2021 ◽

pp. 219256822198965

Author(s):

Toru Doi ◽

Nozomu Ohtomo ◽

Fumihiko Oguchi ◽

Keiichiro Tozawa ◽

Hiroyuki Nakarai ◽

...

Keyword(s):

Clinical Features ◽

Fatty Infiltration ◽

Neck Disability Index ◽

Posterior Longitudinal Ligament ◽

Paraspinal Muscle ◽

Paraspinal Muscles ◽

Muscle Area ◽

Cross Sectional ◽

Study Results ◽

Neck Disability

Study Design: A retrospective observational study. Objective: To clarify the association of the paraspinal muscle area and composition with clinical features in patients with cervical ossification of the posterior longitudinal ligament (OPLL). Methods: Consecutive patients with cervical OPLL who underwent cervical magnetic resonance imaging (MRI) before surgery were reviewed. The cross-sectional area (CSA) and fatty infiltration ratio (FI%) of deep posterior cervical paraspinal muscles (multifidus [MF] and semispinalis cervicis [SCer]) were examined. We assessed the association of paraspinal muscle measurements with the clinical characteristics and clinical outcomes, such as Neck Disability Index (NDI) score. Moreover, we divided the patients into 2 groups according to the extent of the ossified lesion (segmental and localized [OPLL-SL] and continuous and mixed [OPLL-CM] groups) and compared these variables between the 2 groups. Results: 49 patients with cervical OPLL were enrolled in this study. The FI% of the paraspinal muscles was significantly associated with the number of vertebrae ( ρ = 0.283, p = 0.049) or maximum occupancy ratio of OPLL ( ρ = 0.397, p = 0.005). The comparative study results indicated that the NDI score was significantly worse (OPLL-SL, 22.9 ± 13.7 vs. OPLL-CM, 34.4 ± 13.7) and FI% of SCer higher (OPLL-SL, 9.1 ± 1.7% vs. OPLL-CM, 11.1 ± 3.7%) in the OPLL-CM group than those in the OPLL-SL group. Conclusions: Our results suggest that OPLL severity may be associated with fatty infiltration of deep posterior cervical paraspinal muscles, which could affect neck disability in patients with cervical OPLL.

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Abnormal Uterine Bleeding in Perimenopausal Age: Different causes and its relation with histopathology

Bangladesh Journal of Medical Science ◽

10.3329/bjms.v13i2.18295 ◽

2014 ◽

Vol 13 (2) ◽

pp. 135-139 ◽

Cited By ~ 1

Author(s):

Nazlima Nargis ◽

Iqbal Karim ◽

Khondaker Bulbul Sarwar

Keyword(s):

Histopathological Examination ◽

Medical Science ◽

Abnormal Uterine Bleeding ◽

Uterine Bleeding ◽

Transvaginal Sonography ◽

Age Group ◽

Histopathological Findings ◽

Medical College ◽

Gynecology And Obstetrics ◽

Study Results

Background: Abnormal uterine bleeding (AUB) is the most common reason for gynecological visits for perimenopausal bleeding and may account for more than 25% of all hysterectomies. Objective: This study was aimed to review the causes of abnormal uterine bleeding in perimenopausal women establishing the correlation with ultrasonographic and histopathological examinations. Study Method: This descriptive study was conducted in the department of gynecology and obstetrics, Ibn Sina Medical College, Dhaka during January to December 2012. Two hundred and eleven women were selected for this study, who admitted into the hospital with abnormal uterine bleeding in perimenopausal age. The clinical, ultrasonographic and histopathological findings of these women were evaluated in this study. Results: Menorrhagia was the major symptom (52.6%) irrespective of age and parity. All these women underwent D&C followed by either medical management or hysterectomy depending upon the diagnosis. The histopathological findings of endometrium were analyzed and confirmed as fibroid uterus (58.28%) and DUB (17.58%) correlated well with transvaginal sonography (TVS) and histopathological examination. Hysterectomy conferred other uterine lesions as adenomyosis (18.71%), endometrial polyp (4.81%) and malignancy (1.06%). Conclusion: Abnormal uterine bleeding in perimenopausal age group is a common but ill-defined entity which needs proper evaluation. Accurate diagnosis of the causative factors of AUB in this age group is of utmost importance so that appropriate management can be established early that leads the minimization of the patients sufferings. DOI: http://dx.doi.org/10.3329/bjms.v13i2.18295 Bangladesh Journal of Medical Science Vol.13(2) 2014 p.135-139

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PATTERNS OF ANTIMICROBIAL RESISTANCE AMONG MAJOR BACTERIAL PATHOGENS ISOLATED FROM CLINICAL SAMPLES IN TWO TERTIARY’S HOSPITALS, IN SANA'A, YEMEN

Universal Journal of Pharmaceutical Research ◽

10.22270/ujpr.v6i5.674 ◽

2021 ◽

Author(s):

Huda Zaid Al-Shami ◽

Muhamed Ahmed Al-Haimi ◽

Omar Ahmed Esma’il Al-dossary ◽

Abeer Abdulmahmood Mohamed Nasher ◽

Mohammed Mohammed Ali Al-Najhi ◽

...

Keyword(s):

Pseudomonas Aeruginosa ◽

Antibiotic Resistance ◽

Antimicrobial Resistance ◽

Peer Review ◽

Bacterial Pathogens ◽

University Hospital ◽

Clinical Samples ◽

Isolation And Identification ◽

Hemolytic Streptococcus ◽

Study Results

Background and objectives: At the present time, antimicrobial resistance (AMR) is a major public health hazard, with antimicrobial resistance bacteria increasing exponentially. This study estimates the epidemiological profiles and antimicrobial resistance of Gram-positive bacteria (GPB) and Gram-negative bacteria (GNB) isolated from clinical samples among patients admitted to two University hospitals in Sana'a city for one year (2019). Methods: This was a retrospective study of clinical samples of patients collected from January 1, 2019 to December 30, 2019. All samples were appraised to determine presence of infectious agents using standard methods for isolation and identification of bacteria and yeasts from clinical samples of patients admitted to Al-Gumhouri University Hospital and Al-Kuwait University Hospital in Sana'a city. Antibiotic resistance was done using Kirby-Bauer disc diffusion methods. Results: 2,931 different pathogenic bacteria were detected from 24,690 different clinical specimens. The samples had an overall detection rate of 11.9% (2931/24,690). Among the bacterial pathogens isolated from clinical samples, 52.4% (n=1536) had GPB and 41.2% (n=1207) had GNB. The predominant GNB isolates were E.coli (22.04%), Klebsiella spp (6.03%), Pseudomonas aeruginosa (7.1%), Acinetobacter baumannii (1.46%), Enterobacter spp. (1.09%), Citrobacter spp. (1.16%), respectively. Among the GPB, S.aureus was the most common (26.3%), Coagulase-negative Staphylococcus (8.1%), Non-hemolytic Streptococcus (9.1%), Other alpha-hemolytic Streptococcus (3.9%), Streptococcus pyogenes (1.9%), and Streptococcus pneumoniae (0.5% ). A high rate of antibiotic resistance was recorded for sulfamethoxazole/trimethoprim (85.5%), ceftazidime (81.07%), ampicillin (70.4%), cefuroxime (66.4%). Conclusions: The current study results revealed that the rate of resistance between GNB and GPB is associated with the incidence of different infections in patients attending two major tertiary hospitals in Sana'a city is very high. These results indicate ongoing screening and follow-up programs to detect antibiotic resistance, and also suggest the development of antimicrobial stewardship programs in Sana'a, Yemen. Peer Review History: Received: 9 September 2021; Revised: 11 October; Accepted: 23 October, Available online: 15 November 2021 Academic Editor: Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file: Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.5/10 Reviewers: Rima Benatoui, Laboratory of Applied Neuroendocrinology, Department of Biology, Faculty of Science, Badji Mokhtar University Annaba, BP12 E L Hadjar–Algeria, [email protected] Dr. Wadhah Hassan Ali Edrees, Hajja University, Yemen, [email protected] Rola Jadallah, Arab American University, Palestine, [email protected] Similar Articles: PREVALENCE OF PSEUDOMONAS AERUGINOSA (P. AERUGINOSA) AND ANTIMICROBIAL SUSCEPTIBILITY PATTERNS AT A PRIVATE HOSPITAL IN SANA'A, YEMEN EVALUATION OF ANTIBACTERIAL RESISTANCE OF BIOFILM FORMS OF AVIAN SALMONELLA GALLINARUM TO FLUOROQUINOLONES

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Bacterial Aetiology of Pharyngotonsillitis in Paediatric Age Group in a Tertiary Care Hospital in Kerala

Journal of Evidence Based Medicine and Healthcare ◽

10.18410/jebmh/2021/624 ◽

2021 ◽

Vol 8 (39) ◽

pp. 3441-3447

Author(s):

Thushara Ushakumari Bhuvanendran ◽

Beena V.G.

Keyword(s):

Staphylococcus Aureus ◽

Streptococcus Pneumoniae ◽

Rheumatic Fever ◽

Streptococcus Pyogenes ◽

Acute Rheumatic Fever ◽

Bacterial Pathogens ◽

Antibiotic Sensitivity ◽

Acute Glomerulonephritis ◽

Age Group ◽

Common Organism

BACKGROUND Pharyngotonsillitis is defined as a spectrum of conditions ranging from inflammation primarily confined to the tonsils to pharyngitis implying generalized inflammation of the whole of pharynx. Children are more prone to get several episodes of pharyngotonsillitis per year during their school years. Pharyngitis caused by Streptococcus pyogenes can cause two non-suppurative complications, acute rheumatic fever and acute glomerulonephritis which is responsible for significant morbidity and mortality. The present study was conducted to identify the prevalence of bacterial pathogens causing pharyngotonsillitis and to study their antibiotic sensitivity pattern that would indicate the optimum line of treatment. METHOD A total of 200 children at the age group of 2 - 12 years who had clinical features of pharyngotonsillitis according to the inclusion criteria were recruited for this study over a period of one year. With the help of a disposable wooden spatula, pus from the pharyngo tonsillar region was collected and processed. Predominant isolates obtained were identified and antibiotic sensitivity was done. RESULTS Bacteria was isolated from 70 samples. Pharyngotonsillitis was found most prevalent at the age group of 8 – 10 years. Intake of cold food stuffs and passive smoking at home was found to have statistically significant association as risk factor for pharyngotonsillitis. Staphylococcus aureus was the most common organism isolated followed by Streptococcus pyogenes. The other organisms isolated were group G and C streptococci, Streptococcus pneumoniae, Pseudomonas aeruginosa and Klebsiella pneumonia sub species (spp) aerogenes. CONCLUSIONS Staphylococcus aureus was the most common organism isolated, followed by Streptococcus pyogenes. All the isolates of beta haemolytic streptococci were found to be sensitive to penicillin. There was increased incidence of resistance to macrolides among the gram-positive isolates except Streptococcus pneumoniae and it may be due to the wide spread use of macrolides injudiciously. All the bacterial pharyngotonsillitis cases were cured with the antibiotic given according to the sensitivity except one case. KEYWORDS Pharyngotonsillitis, Acute Rheumatic Fever, Acute Glomerulonephritis, Bacterial Pathogens, Antibiogram

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A Cross Sectional Descriptive Study of Etiology and Clinical Pattern of Liver Abscess : 50 Cases

Chattagram Maa-O-Shishu Hospital Medical College Journal ◽

10.3329/cmoshmcj.v12i3.16713 ◽

2013 ◽

Vol 12 (3) ◽

pp. 44-48

Author(s):

Joyabrata Das ◽

Subash Majumdar ◽

Subrata Das ◽

Saiem Nurul Anwar ◽

Hossain Ahmed ◽

...

Keyword(s):

Clinical Features ◽

Liver Abscess ◽

Rural Areas ◽

Descriptive Study ◽

Age Group ◽

Cross Sectional ◽

Medical College ◽

Abdominal Abscesses ◽

One Year ◽

The Right

Background: The liver is the organ most subjected to the development of abscesses and made up 48 % of all visceral abscesses' and 7% of all intra abdominal abscesses. Liver abscess should be suspected when there is a combination of fever, leucocytosis, constitutional symptoms, and pain in the right upper quadrant, and tenderness over the liver or right lower rib cage. The liver is affected by a number of local and disseminated infections; their frequency and types vary considerably around the world. Parasitic disorders are more prevalent in developing countries. Methods: It was a cross-sectional descriptive study. The cases were taken from the admitted patients of Medicine unit of SMCH, Chittagong. The study was conducted over a period of one year with a sample size of 50 patients and sample was taken by purposive sampling. Results: Among 50 patients 40 (80%) were diagnosed as ALA and 10 (20%) were diagnosed as PLA. ALA cases are common in 21-30 years age group & PLA cases are more common in >50 years of age group. Majority of the cases were from rural area. Common clinical features were fever, abdominal pain, nausea and tender hepatomegaly. Diarrhea was present on admission in 7 (15.9%) patients of ALA. Anaemia was common in both but polymorphonuclear leucocytosis was moderate to severe in PLA. Microscopic examination of stool samples for E. Histolytica trophozoites was positive in 3 (7.5%) cases and cysts in 4(10%) cases. Nine patients had right sided pleural effusion. Conclusions: Clinical features are common in both ALA and PLA. Liver abscesses are more common in men and more prevalent in rural areas. ALA more commonly occurs in 21-30 years age group but can occur at any age. Pyogenic abscess is more common in older age group (>50 years) and E. Coli is the commonest organism. Chattagram Maa-O-Shishu Hospital Medical College Journal Volume 12, Issue 3, September 2013: 44-48

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Current state of Donetsk dendroflora

Samara Journal of Science ◽

10.17816/snv20162104 ◽

2016 ◽

Vol 5 (2) ◽

pp. 20-24

Author(s):

Alexandr Zakharovych Glukhov ◽

Lyudmila Valerievna Kharkhota ◽

Georgy Alexandrovych Pasternak ◽

Elena Nikolaevna Likhatskaya

Keyword(s):

Age Structure ◽

Steppe Zone ◽

Age Group ◽

Fast Growing ◽

Industrial City ◽

Current State ◽

Study Results ◽

Slow Growing ◽

Trees And Shrubs ◽

Fast Growing Species

We present the study results of modern dendroflora of Donetsk (a large industrial city of the south steppe zone). We have determined the species composition, analyzed the age structure of plantations, estimated the life condition of trees and shrubs. Plantations compose 76 species and 32 forms, types, sorts of trees, including 11 species and 9 sorts of the coniferous, as well as 79 species and 35 forms, sorts of shrubs, including 7 species and 19 sorts of the coniferous. Trees and shrubs belong to 78 genera, which are included into 38 families. The most represented family among the deciduous is Rosaceae Juss. - 46 species and 13 sorts, among the coniferous - Pinaceae Lindl. (9 species and 6 sorts), Cupressaceae Rich. ex Bartl. (7 species and 22 sorts). Tree species dominating in plantations are Populus bolleana Lauche (14,6% of the total number of trees), dominating shrubs are the sorts of Rosa hybrida (44,0% of the total number of shrubs). In the plantations studied we have indicated 33 species of trees and shrubs of the aboriginal fraction of local flora. Analysis of the age structure of plantations revealed that the majority of trees compose the age group of 20-29 years, the majority of shrubs - up to 10 years. Fast-growing species prevail in plantations (73% of the total number). Viability of the most part of trees of fast-growing and slow-growing species is estimated by 4 points, viability of moderate-growing species - by 6 points. The number of trees being in unsatisfactory condition (0 or 1-3 points) prevails among fast-growing species.

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