Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.13
The construction industry is dynamic in nature because it involves a wide number of stakeholders, such as consumers, manufacturers, consultants, regulators and others. Construction projects suffer from many challenges and complex performance issues, such as low coordination, job delays, changes in goals. Study on the contrast of conventional and modern methodologies for project management in construction projects. Introduction of Agile project management approach as modern project management methodology and its framework effects on construction project performance. With the use of Agile software development tools comparison of individuals experts and team solutions will be analyzed and evaluate optimum solutions and their comparison with traditional project management tools. In traditional project management, validation of the results has been done through survey of the experienced experts. However, as agile software development tools Jira and Trello software would be used for managing project. Analysis of the research will compare traditional and agile project management tools and suggest the project management team an optimum solution of any problem occur at construction project.
{"title":"AGILE APPLICATION IN CONSTRUCTION INDUSTRY","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.13","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.13","url":null,"abstract":"The construction industry is dynamic in nature because it involves a wide number of stakeholders, such as consumers, manufacturers, consultants, regulators and others. Construction projects suffer from many challenges and complex performance issues, such as low coordination, job delays, changes in goals. Study on the contrast of conventional and modern methodologies for project management in construction projects. Introduction of Agile project management approach as modern project management methodology and its framework effects on construction project performance. With the use of Agile software development tools comparison of individuals experts and team solutions will be analyzed and evaluate optimum solutions and their comparison with traditional project management tools. In traditional project management, validation of the results has been done through survey of the experienced experts. However, as agile software development tools Jira and Trello software would be used for managing project. Analysis of the research will compare traditional and agile project management tools and suggest the project management team an optimum solution of any problem occur at construction project.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77680548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.4
This paper is presented on Design and Thermal analysis of disc brake rotor of different materials, which analyze about on disc brake rotor by analysis of different shapes of slot of different vehicles Disc brake rotor. Therefore, it can optimize number of shapes of slot to estimate the good thermal conductivity of the disc brake rotor. CATIA V5R21 and ANSYS 19R1 software’s are using for Modeling, Static and Transient Thermal Analysis. Heat generated is dissipated faster or the disc material gets less heated. Here is consideration of a metal multiple materials which will satisfy above criteria. An analysis of composite and SS disc brakes over a repeated braking is done and the results are analyzed.
{"title":"TRANSIENT THERMAL ANALYSIS OF DOUBLE DISK BRAKE ROTOR OF DIFFERENT MATERIALS USING HYBRID MECHANISM","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.4","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.4","url":null,"abstract":"This paper is presented on Design and Thermal analysis of disc brake rotor of different materials, which analyze about on disc brake rotor by analysis of different shapes of slot of different vehicles Disc brake rotor. Therefore, it can optimize number of shapes of slot to estimate the good thermal conductivity of the disc brake rotor. CATIA V5R21 and ANSYS 19R1 software’s are using for Modeling, Static and Transient Thermal Analysis. Heat generated is dissipated faster or the disc material gets less heated. Here is consideration of a metal multiple materials which will satisfy above criteria. An analysis of composite and SS disc brakes over a repeated braking is done and the results are analyzed.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73571242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.16
This traffic controller system aims at designing a dynamic automated traffic control system where the signal and time limit will be automatically changed when it detects traffic congestion in any lane. Traffic congestion is a major problem in many cities around the world so it is urgent need to switch over from manual mode or timer mode to an automated traffic control system that has the power to make decisions on its own. The current traffic signal system is working on fixed time which may not work if one route gets more traffic than other lane. To overcome this problem, a smart traffic control system is proposed. When using this system high traffic congestion on a particular lane receives green for a longer period of time compared to the other lanes which has normal vehicle flow. Therefore, the proposed method of providing green and red light time is based on the amount of traffic congestion at the time with the help of an IR sensor and Sound sensors connected to ATmega 2560 Microcontroller.
{"title":"DENSITY BASED TRAFFIC CONTROLLER SYSTEM USING WIRELESS SENSOR NETWORKS","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.16","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.16","url":null,"abstract":"This traffic controller system aims at designing a dynamic automated traffic control system where the signal and time limit will be automatically changed when it detects traffic congestion in any lane. Traffic congestion is a major problem in many cities around the world so it is urgent need to switch over from manual mode or timer mode to an automated traffic control system that has the power to make decisions on its own. The current traffic signal system is working on fixed time which may not work if one route gets more traffic than other lane. To overcome this problem, a smart traffic control system is proposed. When using this system high traffic congestion on a particular lane receives green for a longer period of time compared to the other lanes which has normal vehicle flow. Therefore, the proposed method of providing green and red light time is based on the amount of traffic congestion at the time with the help of an IR sensor and Sound sensors connected to ATmega 2560 Microcontroller.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91535951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.10
Software defect prediction model based on the mutation testing is a pioneering method for the fault-based unit testing in which faults are detected by executing certain test data. This paper presents an Optimized Mutation Testing (OMT) technique based software defect prediction model using the concept of hybrid metaheuristic technique. Here, hybridization of OMT with Enhanced Learning-to-Rank (ELTR) is used for the feature extraction from mutation testing based data generation mechanism. In the proposed approach, first hybrid technique is used for the test data feature extraction then this data is exercised to cover all mutants present in the specific program under test and then machine learning based Random Forest as an ensemble classifier is used as a classifier. The proposed method can improve the testing as well defect prediction efficiency by deleting the redundant test data. In this research work, two models are implemented for the software defect prediction using the ELTR and LTR. At last, the performance parameters such as Detection Rate, Defect Predication Value, Execution Time, Percentage of Fault Negative Rate and Percentage of Fault Rate are measured and compared with the existing work to validate the proposed model.
{"title":"AN OPTIMIZED MUTATION TESTING USING HYBRID METAHEURISTIC TECHNIQUE WITH MACHINE LEARNING FOR SOFTWARE DEFECT PREDICTION","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.10","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.10","url":null,"abstract":"Software defect prediction model based on the mutation testing is a pioneering method for the fault-based unit testing in which faults are detected by executing certain test data. This paper presents an Optimized Mutation Testing (OMT) technique based software defect prediction model using the concept of hybrid metaheuristic technique. Here, hybridization of OMT with Enhanced Learning-to-Rank (ELTR) is used for the feature extraction from mutation testing based data generation mechanism. In the proposed approach, first hybrid technique is used for the test data feature extraction then this data is exercised to cover all mutants present in the specific program under test and then machine learning based Random Forest as an ensemble classifier is used as a classifier. The proposed method can improve the testing as well defect prediction efficiency by deleting the redundant test data. In this research work, two models are implemented for the software defect prediction using the ELTR and LTR. At last, the performance parameters such as Detection Rate, Defect Predication Value, Execution Time, Percentage of Fault Negative Rate and Percentage of Fault Rate are measured and compared with the existing work to validate the proposed model.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"220 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86216515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.8
The self-driving trolley created in this thesis uses cameras and ultrasonic sensors to obtain roadway information, and a deep learning based target recognition algorithm to find out which are the targets in the data obtained, so that the trolley can drive itself on a simulated roadway with functions such as obstacle avoidance and traffic signal recognition. Originally the car used a Raspberry Pi 3b+, but here the jetson nano, which is better than the Raspberry Pi 3b+, is used to implement it.
{"title":"A RASPBERRY PI SELF-DRIVING CART BASED ON OPENCV AND DEEP LEARNING .","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.8","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.8","url":null,"abstract":"The self-driving trolley created in this thesis uses cameras and ultrasonic sensors to obtain roadway information, and a deep learning based target recognition algorithm to find out which are the targets in the data obtained, so that the trolley can drive itself on a simulated roadway with functions such as obstacle avoidance and traffic signal recognition. Originally the car used a Raspberry Pi 3b+, but here the jetson nano, which is better than the Raspberry Pi 3b+, is used to implement it.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91414097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.5
The current digital era is full of digital devices and to ensure the safety of their data, users utilize the protective armor of passwords using the fingerprints lock, face lock, pin codes and password locks. The trial-and-error method possesses an infinite possibility of passwords in patterns/ pin locks for unlocking the devices. The levels of security ensure that only a limited number of trials are possible before any device blocks itself or makes unlocking harder. In these circumstances, especially when a victim is a deceased person (e. g. an abetment in suicide case), the password is practically impossible to attain through the authorities. However, the data can be retrieved with the unique and distinctive method of Chip-off analysis. In this study, a password protected mobile phone was retrieved from a deceased individual and only the analysis of his/her mobile could lead to investigative insights for catching the perpetrator. The Chip-off method has several difficulties and a password/ pin protected device increases the difficulties for analysis several folds. This study highlights the significance of chip-off analysis in achieving accurate importing and extraction of maximum data along with the use of the hardware/software, MSAB, XRY and other software.
{"title":"DATA EXTRACTION FROM PASSWORD PROTECTED MOBILE PHONE BY USING CHIP-OFF METHOD –A FORENSIC CASE STUDY","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.5","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.5","url":null,"abstract":"The current digital era is full of digital devices and to ensure the safety of their data, users utilize the protective armor of passwords using the fingerprints lock, face lock, pin codes and password locks. The trial-and-error method possesses an infinite possibility of passwords in patterns/ pin locks for unlocking the devices. The levels of security ensure that only a limited number of trials are possible before any device blocks itself or makes unlocking harder. In these circumstances, especially when a victim is a deceased person (e. g. an abetment in suicide case), the password is practically impossible to attain through the authorities. However, the data can be retrieved with the unique and distinctive method of Chip-off analysis. In this study, a password protected mobile phone was retrieved from a deceased individual and only the analysis of his/her mobile could lead to investigative insights for catching the perpetrator. The Chip-off method has several difficulties and a password/ pin protected device increases the difficulties for analysis several folds. This study highlights the significance of chip-off analysis in achieving accurate importing and extraction of maximum data along with the use of the hardware/software, MSAB, XRY and other software.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90641168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.29121/ijesrt.v10.i3.2021.15
Most of the built carts will use a combination of lithium batteries, but the types of lithium battery connectors are cumbersome and their charging time is too long. In this project, a Faraday capacitor is used instead of the car's power source to store power in a wireless charging mode, by providing DC power to the transmitter coil along the road to induce a certain voltage to the secondary coil carried by the car to achieve the effect of storing power for the Faraday capacitor. A camera module openmv in the centre of the track captures images and uses a target detection algorithm to intelligently identify the position of the car to control the activation and deactivation of the coils to improve efficiency.
{"title":"WIRELESS CHARGING TROLLEY WITH VEHICLE-PILE COLLABORATION","authors":"","doi":"10.29121/ijesrt.v10.i3.2021.15","DOIUrl":"https://doi.org/10.29121/ijesrt.v10.i3.2021.15","url":null,"abstract":"Most of the built carts will use a combination of lithium batteries, but the types of lithium battery connectors are cumbersome and their charging time is too long. In this project, a Faraday capacitor is used instead of the car's power source to store power in a wireless charging mode, by providing DC power to the transmitter coil along the road to induce a certain voltage to the secondary coil carried by the car to achieve the effect of storing power for the Faraday capacitor. A camera module openmv in the centre of the track captures images and uses a target detection algorithm to intelligently identify the position of the car to control the activation and deactivation of the coils to improve efficiency.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77024280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.36548/jucct.2021.1.001
V. B.
As the number of context-aware and unique data extracting and computing has grown leaps and bounds, paving way to their application in many platforms, Internet of Things (IoT) has gained a lot of importance in recent years. Using IoT, it is possible to connect any number of objects and in any context, giving rise to a diverse range of services. Hence power management, data storage, service discovery, service management, service creation and resource management need a more sophisticated mechanism and a better infrastructure. However, a single IoT that is power-constrained will not be able to tackle all the data that is generated. Hence cloud computing plays a crucial role by integrating with the IoT in such a way that the future internet and envisioned IoT is achievable. There are a number of challenges involved of which data trimming is common challenge. Due to unnecessary communication, the data this sent to the cloud may be interrupted. Hence to prevent this, data is initially preprocessed following which it is trimmed and then transferred to the cloud. This aspect of data processing can be carried out through Fog Computing or Smart Network that serves as a smart gateway. In this paper, we have introduced a novel concept Fog computing as the smart gateway. The results have been analysed and tested with respect to bulk-data synchronizstion Delay, bulk-data upload delay, jitter, synchronization delay and upload delay.
{"title":"Evaluation of Performance of Cloud of Things (CoT) for Transferring Multimedia and Bulk-set Data","authors":"V. B.","doi":"10.36548/jucct.2021.1.001","DOIUrl":"https://doi.org/10.36548/jucct.2021.1.001","url":null,"abstract":"As the number of context-aware and unique data extracting and computing has grown leaps and bounds, paving way to their application in many platforms, Internet of Things (IoT) has gained a lot of importance in recent years. Using IoT, it is possible to connect any number of objects and in any context, giving rise to a diverse range of services. Hence power management, data storage, service discovery, service management, service creation and resource management need a more sophisticated mechanism and a better infrastructure. However, a single IoT that is power-constrained will not be able to tackle all the data that is generated. Hence cloud computing plays a crucial role by integrating with the IoT in such a way that the future internet and envisioned IoT is achievable. There are a number of challenges involved of which data trimming is common challenge. Due to unnecessary communication, the data this sent to the cloud may be interrupted. Hence to prevent this, data is initially preprocessed following which it is trimmed and then transferred to the cloud. This aspect of data processing can be carried out through Fog Computing or Smart Network that serves as a smart gateway. In this paper, we have introduced a novel concept Fog computing as the smart gateway. The results have been analysed and tested with respect to bulk-data synchronizstion Delay, bulk-data upload delay, jitter, synchronization delay and upload delay.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78878937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.36263/nijest.2021.01.0279
P. C. Ogbonna, E. C. Dikeogu, O. Nwankwo, K. C. Kanu, E. Osuagwu
Several health risks have been linked to exposure to environmental toxicants in food consume by man. This study aimed to determine the level of environmental toxicants in goats tended by rural farmers. Fur and blood samples were carefully collected from sixteen (16) goats in open range husbandry (ex situ) at four sites in Amawzari, Imo State, Nigeria. The samples were digested and analyzed separately to determine the concentrations of some environmental toxicants (heavy metals). The concentrations of Pb, Cr, Cd and Ni in blood were 0.01 to 0.05, 0.01 to 0.07, 0.00 to 0.01 and 0.05 to 0.12 mg/kg, while their concentration in fur were 0.02 to 0.03, 0.001 to 0.006, 0.00 to 0.00, and 0.04 to 0.05 mg/kg, respectively. Pearson correlation analysis show very strong positive relationship between Pb in blood and Pb in fur (r = 0.855, p < 0.01) and Ni in blood and Ni in fur (r = 0.811, p < 0.01). The order of abundance of the four heavy metals tested in goat fur and blood is Ni > Cr > Pb > Cd. Based on our findings, the concentrations of heavy metals in blood were higher than its corresponding values in fur. Thus, consumption of meat processed from these metal-contaminated goats and utilization of their blood to manufacture blood meal for pigs and poultry birds will result to bio-magnification of heavy metals in man and animals. Therefore, we recommend that rural farmers should be enlightened on health challenges associated with in situ form of animal husbandry.
{"title":"Bio-monitoring of Environmental Toxicants using West African Dwarf Goats at Amawzari Mbano, Imo State, Nigeria","authors":"P. C. Ogbonna, E. C. Dikeogu, O. Nwankwo, K. C. Kanu, E. Osuagwu","doi":"10.36263/nijest.2021.01.0279","DOIUrl":"https://doi.org/10.36263/nijest.2021.01.0279","url":null,"abstract":"Several health risks have been linked to exposure to environmental toxicants in food consume by man. This study aimed to determine the level of environmental toxicants in goats tended by rural farmers. Fur and blood samples were carefully collected from sixteen (16) goats in open range husbandry (ex situ) at four sites in Amawzari, Imo State, Nigeria. The samples were digested and analyzed separately to determine the concentrations of some environmental toxicants (heavy metals). The concentrations of Pb, Cr, Cd and Ni in blood were 0.01 to 0.05, 0.01 to 0.07, 0.00 to 0.01 and 0.05 to 0.12 mg/kg, while their concentration in fur were 0.02 to 0.03, 0.001 to 0.006, 0.00 to 0.00, and 0.04 to 0.05 mg/kg, respectively. Pearson correlation analysis show very strong positive relationship between Pb in blood and Pb in fur (r = 0.855, p < 0.01) and Ni in blood and Ni in fur (r = 0.811, p < 0.01). The order of abundance of the four heavy metals tested in goat fur and blood is Ni > Cr > Pb > Cd. Based on our findings, the concentrations of heavy metals in blood were higher than its corresponding values in fur. Thus, consumption of meat processed from these metal-contaminated goats and utilization of their blood to manufacture blood meal for pigs and poultry birds will result to bio-magnification of heavy metals in man and animals. Therefore, we recommend that rural farmers should be enlightened on health challenges associated with in situ form of animal husbandry.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90447000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.36263/nijest.2021.01.0278
A. Akpan, M. Chukwu, I. K. Esenowo, M. Johnson, D. Archibong
This study was to assess the effect of fallowed and cultivated land-use systems on the abundance of soil macroinvertebrates assemblage. Collections of soil samples were carried out fortnightly twice a month for four months. The extraction of soil macroinvertebrates was carried out using Berlese-Tullgren funnel extractor, and elutriation technique. The mean values of 6.93+/-0.25 were recorded for pH, 32.08+/-0.52oC for temperature, 15.60+/-1.22 for moisture content, were recorded for fallowed soil, and 4.43+/-0.16 (pH), 30.95+/-0.19oC (temperature) were recorded for cultivated soil. A total of 17 soil macroinvertebrates species comprising of 11 orders, from four classes were encountered. Out of the 517 individual soil macroinvertebrates encountered, 327 individuals representing four classes were present in the fallow land while 190 individuals representing three classes were present in the cultivated land. The most dominant species in terms of abundance in the fallowed land site included; Cryptotermes sp 67(20.49%) > Blatta sp 56(17.12%) with Hogna sp 1(0.0.30%) the least; while Cryptotermes sp. 79(41.58%) >Lasius sp 30(15.79%) > Lumbricus terrestris 21(11.05%) represents the dominant species in the cultivated soil with Paraponera sp 1(0.53%) the least. Soil temperature showed positive correlation with the abundance of Clitellata (r = 0.851; p < 0.05) and Insecta (r = 0.826; p < 0.05) and Soil pH showed positive correlation with the abundance of Diplopoda (r = 0.911; p ≤ 0.05). In conclusion, it could be deduced from the study that human activities in the cultivated site perturb soil macroinvertebrates community structure which is reflected in the relative abundance of soil macroinvertebrate from the two sampling sites. The results obtained in this study could be a piece of pointing information for the conservation and management of the soil macroinvertebrates giving their functions in balancing agroecosystems.
{"title":"Effect of Fallowed and Cultivated Land Use Systems on the Composition and Abundance of Soil Macroinvertebrates Assemblage in Uruk Osung Community, Akwa Ibom State, Nigeria","authors":"A. Akpan, M. Chukwu, I. K. Esenowo, M. Johnson, D. Archibong","doi":"10.36263/nijest.2021.01.0278","DOIUrl":"https://doi.org/10.36263/nijest.2021.01.0278","url":null,"abstract":"This study was to assess the effect of fallowed and cultivated land-use systems on the abundance of soil macroinvertebrates assemblage. Collections of soil samples were carried out fortnightly twice a month for four months. The extraction of soil macroinvertebrates was carried out using Berlese-Tullgren funnel extractor, and elutriation technique. The mean values of 6.93+/-0.25 were recorded for pH, 32.08+/-0.52oC for temperature, 15.60+/-1.22 for moisture content, were recorded for fallowed soil, and 4.43+/-0.16 (pH), 30.95+/-0.19oC (temperature) were recorded for cultivated soil. A total of 17 soil macroinvertebrates species comprising of 11 orders, from four classes were encountered. Out of the 517 individual soil macroinvertebrates encountered, 327 individuals representing four classes were present in the fallow land while 190 individuals representing three classes were present in the cultivated land. The most dominant species in terms of abundance in the fallowed land site included; Cryptotermes sp 67(20.49%) > Blatta sp 56(17.12%) with Hogna sp 1(0.0.30%) the least; while Cryptotermes sp. 79(41.58%) >Lasius sp 30(15.79%) > Lumbricus terrestris 21(11.05%) represents the dominant species in the cultivated soil with Paraponera sp 1(0.53%) the least. Soil temperature showed positive correlation with the abundance of Clitellata (r = 0.851; p < 0.05) and Insecta (r = 0.826; p < 0.05) and Soil pH showed positive correlation with the abundance of Diplopoda (r = 0.911; p ≤ 0.05). In conclusion, it could be deduced from the study that human activities in the cultivated site perturb soil macroinvertebrates community structure which is reflected in the relative abundance of soil macroinvertebrate from the two sampling sites. The results obtained in this study could be a piece of pointing information for the conservation and management of the soil macroinvertebrates giving their functions in balancing agroecosystems.","PeriodicalId":11002,"journal":{"name":"Day 1 Tue, March 23, 2021","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90338093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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