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Water Quality Assessment in Maddhapara Granite Mine, Bangladesh
Hossain Al Tanjil,
Mohammad Tofayal Ahmed,
Sigma Akter,
Pradip Kumar Biswas
Issue:
Volume 7, Issue 2, March 2019
Pages:
39-45
Received:
6 February 2019
Accepted:
18 March 2019
Published:
8 April 2019
Abstract: Inflow groundwater plays a vital role in maintaining an environmental cycle. Water quality assessment is needed for identifying disturbance or contamination of this. In this research, twelve water samples were collected from in and around Maddhapara Granite Mine, Bangladesh during August 2017 to reach in a decision, that is the untreated mine discharged water able to contaminate the groundwater or not. The samples’ heavy metals i.e., Zn, Ni, Fe, Cu, Pb, and Cr were analyzed by Atomic Absorption Spectrophotometer in laboratory, where the average highest value was 123.05 mg/L of Fe. Cr and Cu in those samples were under detection level and Pb concentration was 1.13 to 7.63 mg/L, which surpassed the World Health Organization (WHO, 04) drinking water guideline values of Pb is 0.01mg/L; Ni and Zn were also above the WHO standard. The concentrations of all heavy metals are inversely proportional to the distance of sampling point from the mine. Hence, this study uncovers that the use of granite mine wastewater without any treatment for irrigation purpose has grown the danger of heavy metals contamination in groundwater in future and causing an influential venture for the environment in the longtime term.
Abstract: Inflow groundwater plays a vital role in maintaining an environmental cycle. Water quality assessment is needed for identifying disturbance or contamination of this. In this research, twelve water samples were collected from in and around Maddhapara Granite Mine, Bangladesh during August 2017 to reach in a decision, that is the untreated mine disch...
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Geospatial Assessment of Crime and Security in Ido Local Government Area, Oyo State, SouthWest Nigeria
Babatunde Akeem Adesola,
Oyekola Martins Adewale
Issue:
Volume 7, Issue 2, March 2019
Pages:
46-60
Received:
5 March 2019
Accepted:
10 April 2019
Published:
6 May 2019
Abstract: Utilization of Information Technology is required in public safety management in the cities and their suburb such as the present Ido area, Ido local government Ibadan. Geographic Information System (GIS) is an important tool that can be used to locate crime area, and thus allow police to proactively respond to the situations before constituting a problem. This research investigates crime and security in Ido Local Government Area of Oyo State, Southwest Nigeria with the aim of mapping and assessing the area prone to crime, leading causes. The methodology adopted in this research was field surveying methods with the use of Hi-target differential GPS to acquire the spatial coordinate (x, y, z) of crime hotspots/locations and police stations in the study area. The local government consists of five areas namely; Omi-Adio with seven (7) communities, Ologuneru with eight (8) communities, Ido with thirteen (13) communities, Apete with fifteen (15) communities and Apata division with eleven (11) communities. The data acquired through field surveying measurement with the Hi-target differential GPS was processed with Hi-target Geomatics Office (HGO) and Global Navigation Satellite System (GNSS) application software in order to acquire the spatial location x, y, z data of the crime hotspots and police stations. Proximity of police stations to crime hotspots was calculated to know how each of the crime hotspot was distant to the police station. Further processing was done with the use of Quick Bird satellite imagery, ArcGIS 10.2.1 (Arcmap 10.2.1) GIS application software in analyzing the location of crime and also identification of crime patterns. The result from the crime data obtained from the field measurement and police was presented in form of charts and map/plan. Generally from the research, it can be concluded that the major crime types common in the study area. Therefore, the security issues in Ido local government has been dealt with but still requires more attentions by the government and the law enforcement agencies.
Abstract: Utilization of Information Technology is required in public safety management in the cities and their suburb such as the present Ido area, Ido local government Ibadan. Geographic Information System (GIS) is an important tool that can be used to locate crime area, and thus allow police to proactively respond to the situations before constituting a p...
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Parks’ Governance and Management in Rwanda: Opportunities and Challenges of the Community Participation for a Sustainable Conservation - Case Study of Nyungwe National Park
Issue:
Volume 7, Issue 2, March 2019
Pages:
61-71
Received:
26 February 2019
Accepted:
2 April 2019
Published:
10 May 2019
Abstract: In the field of conservation, the shift from the fortress conservation approach towards participatory management has considerably increased the interest for tourism activities and income. In Rwanda, the protected areas governance system is promoting community-based conservation through tourism revenue sharing to achieve conservation and development goals. The case study was designed to: (1) assess the understanding and implementation of principles of community participation by different stakeholders for the benefit of local communities and the efficiency of the conservation and (2) define interactive dynamics and conditions created for fully and sustainably population involvement in the conservation. The study area was selected because of its rich biodiversity and the high dependence of surrounding populations on natural resources. The study adopted a qualitative approach based on semi-structured individual interviews to key stakeholders from different categories of stakeholders including local communities. The data collected were transcribed, translated and analyzed using content analysis methods, MAXQDA Software and a coding system. The results showed that the involvement and empowerment of local people are done through keen activities based cooperative associations and funded projects, reference made to resources use, awareness raising and skills for interactions, cooperative spirit promotion and entrepreneurship. They indicated that the level of communities’ participation remains only of procedural kind and is still low though community members are benefiting of jobs, loans for their projects and income generating activities such as organized productions for market thanks to tourism revenue sharing and revolving fund programs. The transfer of the management is slow and smooth because of a slow change of mindset from receiving mentality, farming related difficulties, unaffordable lending conditions and a great deal of communication and misunderstanding on the tourism revenue sharing and the projects funding approaches. Contradictory understandings and appreciations of the community participation are recorded according to the categories of stakeholders. Actually, all the administrative and technical processes including mediation between communities and funding agencies are driven through a top-down management model; the study area being a state owned and controlled park and not a co-managed one. Though local communities gradually understand the role of the park thanks to income generating activities and community projects, the new approach does not meet basic criteria for effective community participation to ensure the sustainability of the conservation. However, the socio-economic incentives have a positive impact on the reduction of illegal activities and threats, except poaching for which a compensation fund for damaged crops was created.
Abstract: In the field of conservation, the shift from the fortress conservation approach towards participatory management has considerably increased the interest for tourism activities and income. In Rwanda, the protected areas governance system is promoting community-based conservation through tourism revenue sharing to achieve conservation and development...
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Geo-environmental Quality Evaluation Based on GIS in Shiyan-Wudang Mountain Area
Bei Wang,
Xiaomei Wang,
Yongpeng Fu,
Xueping Li,
Wen Zhang,
Yaobang Lu
Issue:
Volume 7, Issue 2, March 2019
Pages:
72-79
Received:
14 April 2019
Published:
15 June 2019
Abstract: The Shiyan-Wudang Mountain area is located in the Danjiangkou Reservoir Area, the upper reaches of the Han River, the hinterland of the Qinba Mountain Range. The main geological environmental problems in the region include collapse, landslides, debris flow, ground collapses, and ground fissures, which seriously restrict local economic development. Based on the analysis and summary of the distribution, development characteristics, formation conditions and influencing factors of geological disasters in this area, the multiple comparisons is used to select the formation complex, slope, distance from the fault zone, water yield property, distance from surface water system, average annual rainfall, mountain disaster point density, soil erosion, and human engineering activity intensity as the evaluation indicators, the geological environment quality evaluation index system of Shiyan-Wudang Mountain area was established; Geographic information system (GIS) technology is used to carry out hierarchical management of basic maps, and establish a spatial database of geological environment conditions. The analytic hierarchy process is used to determine the weight of the index system. The evaluation module developed by MapGIS platform is used to evaluate the geological environment quality of the study area. Respectively, the area of geological environment with best quality, good, poor and worst areas accounted for 56.805%, 22.800%, 16.474%, and 3.921%. The results show that the geological environment quality of the study area is generally good, and some areas are poor, and very few are bad. The calculated evaluation map is compared with the current geological disaster points, and the results verify the accuracy and scientificity of the evaluation process and results. The research results of this paper can provide a basis for regional geological environment management, planning, disaster prevention and mitigation.
Abstract: The Shiyan-Wudang Mountain area is located in the Danjiangkou Reservoir Area, the upper reaches of the Han River, the hinterland of the Qinba Mountain Range. The main geological environmental problems in the region include collapse, landslides, debris flow, ground collapses, and ground fissures, which seriously restrict local economic development. ...
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Moistening Deformation and Microstructure Change of Undisturbed Loess Under Confined Conditions
Ying Gao,
Yanxia Ma,
Wuyu Zhang,
Jiaqing Guo
Issue:
Volume 7, Issue 2, March 2019
Pages:
80-85
Received:
22 April 2019
Published:
15 June 2019
Abstract: Under the confined conditions, the influence of water content on the deformation characteristics of loess collapsing was studied by the indoor collapsibility test. The microscopic images were analyzed microstructural changes of the soil before and after the collapsing. The result shows that: (1) the higher the moisture content, the smaller vertical deformation of the sample after immersion in water under the same immersion pressure, and the smaller collapsibility. On the contrary, when the moisture water content is small, the main form of deformation is water immersion. After the collapse deformation, the amount of compression will decrease; (2) with the increase of water content, under the joint action of pressure and water, the soil structure tends to be dense, the particle filling area becomes larger, and the pore filling area decreases, and the pores are filled with clay and fine particles, and the connectivity between pores is reduced; (3) the average pore diameter, average pore area and average pore circumference of different soil samples after immersion are gradually reduced compared with the soil sample before immersion. The area is evenly distributed in each angular region and is related to macroscopic collapse deformation.
Abstract: Under the confined conditions, the influence of water content on the deformation characteristics of loess collapsing was studied by the indoor collapsibility test. The microscopic images were analyzed microstructural changes of the soil before and after the collapsing. The result shows that: (1) the higher the moisture content, the smaller vertical...
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