Wyniki wyszukiwania - BazTech

1

Sustainability, Corporate Community Engagement and Enterprise Development – Lessons from a Case Study in Emu-Ebendo Niger-Delta, Nigeria

Ajide O. E., Strachan P. A., Russell A., Jones D. R.

Problemy Ekorozwoju

|

2017

|

Vol. 12, nr 2

59--67

EN

Corporate community engagement remains an under researched area in sustainability debates. Presenting a case study, based on in-depth interviews and site visits, of how one indigenous company Energia Ltd has formed a strong partnership or bond with the Emu-Ebendo community in the oil rich Niger Delta, the dynamics of corporate community engagement are critically discussed. Evidence of how both the company and community has benefited from this relationship is presented. The case analysis concludes that the company has effectively utilised a clearer understanding of the culture of the host community, leading to a transformational relationship. The approach adopted by Energia Ltd in the Emu-Ebendo community is unique in context. The key conclusion reached is that community benefit funds and community enterprise development, as a derivative of corporate engagement, can play a transformational role in societal and economic development.

PL

Kwestia korporacyjnego zaangażowania społecznego nie jest często podejmowana w ramach debat o rozwoju zrównoważonym. Lukę tę uzupełnia niniejsze studium przypadku, oparte na szczegółowych wywiadach i pracy w terenie. Pokazujemy, w jaki sposób kompania Energia Ltd wprowadziła zasadę partnerstwa, w wyniku której nawiązała się silna więź pomiędzy firmą a społecznością Emu-Ebendo zamieszkującą bogatą w ropę Deltę Nigru. Przedstawiono dowody, jakie korzyści odniosły zarówno kompania, jak i społeczność. Przeprowadzono analiza pokazuje, że firma efektywnie wykorzystała zasady wyznaczające ramy kultury lokalnej społeczności, co prowadziło do pozytywnych zmian odnoszących się do wzajemnej relacji. Podejście przyjęte przez Energia Ltd wobec społeczności Emu-Ebendo jest nowatorskie. Okazało się, że fundusze świadczeń społecznych i społeczny rozwój przedsiębiorstw, będące pochodną zaangażowania korporacyjnego, mogą odgrywać podstawową rolę w przemianach społecznego i ekonomicznego rozwoju.

2

Channel dynamics and hydraulic geometry of two tropical deltaic catchments in Southern Nigeria

Aisuebeogun A. O., Ezekwe I. C.

Landform Analysis

|

2014

|

Vol. 27

3--13

EN

This paper attempts to explain the channel processes and dynamics of two river systems running through a rapidly urbanizing humid tropical deltaic environment with visible threats from industrialization and pollution. Hydraulic processes and parameters were compared with established power function relations for hydraulic geometry and it was discovered that the fundamental relations between channel-geometry dimensions, velocity, and flow can be expressed for the catchments. Ten gauging stations in each catchment were studied and results showed that the studied catchments adjust their geometry to changing discharges. High values of coefficients of determination among variables indicated that much of the downstream variation in channel width to depth ratio can be accounted for by changes in discharge. Also in this study the width/depth ratio (F) was found to be related to the percentage of silt + clay (M) in channel perimeter and that downstream hydraulic-geometry relations are in general agreement with previously published hydraulic and channel adjustment data.

3

Stratigraphy and sedimentology of the Niger Delta

Reijers T. J. A.

Geologos

|

2011

|

Vol. 17, No. 3

133--162

EN

During the Cenozoic, until the Middle Miocene, the Niger Delta grew through pulses of sedimentation over an oceanward-dipping continental basement into the Gulf of Guinea; thereafter progradation took place over a landward-dipping oceanic basement. A 12,000 m thick succession of overall regressive, of flapping sediments resulted that is composed of three diachronous siliciclastic units: the deep-marine pro-delta Akata Group, the shallow-marine delta-front Agbada Group and the continental, delta-top Benin Group. Regionally, sediment dispersal was controlled by marine transgressive/regressive cycles related to eustatic sea-level changes with varying duration. Differential subsidence locally influenced sediment accumulation. Collectively, these controls resulted in eleven chronostratigraphically confined delta-wide megasequences with considerable internal lithological variation. The various sea-level cycles were in or out of phase with each other and with local subsidence, and interfered with each other and thus influenced the depositional processes. At the high inflection points of the long-term eustatic sea-level curve, floodings took place that resulted in delta-wide shale markers. At the low inflection points, erosional channels were formed that are often associated, downdip, with turbidites in low-stand sediments (LSTs). The megasequences contain regional transgressive claystone units (TST) followed by a range of heterogeneous fine-to-coarse progradational or aggradational siliciclastic (para)sequence sets formed during sea-level high-stand (HST). An updated biostratigraphic scheme for the Niger Delta is presented. It also updates a sedimentation model that takes into consideration local and delta-wide effects of sea-level cyclicity and delta tectonics. Megasequences were formed over time intervals of ~5 Ma within individual accurate megastructures that laterally linked into depobelts. The megasequences form the time-stratigraphic frame of the delta and are the backbone for the new delta-wide lithostratigraphy proposed here. Such a new lithostratigraphy is badly needed, in particular because of the vigorous new activity in the offshore part of the Niger Delta (not covered in this contribution). There, as well as in the onshore part of the delta, the traditional lithostratigraphic subdivision of the Cenozoic Niger Delta section into three formations is insufficient for optimum stratigraphic application; moreover, the various informal subdivisions that have been proposed over time are inconsistent.

4

Response of periohyton community to salinity gradient in tropical estuary, Niger Delta

Chindah A. C.

Polish Journal of Ecology

|

2004

|

Vol. 52, nr 1

83-89

EN

Studies on periphyton of Crinium plants were conducted in the estuary (New Calabar River) of the Niger Delta at 4 different locations during the two major seasons (rainy and dry season). Periphyton samples were collected from an area (of 2 cm by 2 cm) in 3 sets of 3 replicates for biomasses (AFDW-ash free dry weight and chlorophyll a) and for numerical abundance. Physicochemical parameters such as temperature, pH, conductivity, hardness and salinity were also collected from the respective stations. Temperature was considerably uniform but conductivity, hardness and salinity showed increasing graduation in concentration down stream. A total of 110 periphyton species were recorded with diatoms constituting 54% of the occurring species followed by Euglenophyta (21%0, Chlorophyta (17%), Cyanophyceae (6%) and Rhodophyta (1.8%). There were strong similarities in the values obtained for species richness, periphyton abundance, and chlorophyll a, AFDW (ash free dry weight) for wet and dry season indicating no seasonal influence. However, the periphyton abundance, chlorophyll a and ash free dry weight distribution suggested strongly influence by the salinity gradient. The values for periphyton abundance ranged from 2621 ([plus-minus] 168.5) to 3452.8 ([plus-minus] 715.9) indiv. cm^-2. In addition, the combined mean values for chlorophyll a, and ash free dry weight in the system were 8.443 [plus-minus] 2.51 mg cm^-2 and 0.32 [plus-minus] 0.07 g cm^-2, respectively.

5

Epipelic algal of tropical estuary : case of stable and invariable seasonally community

Chindah A. C., Braide S. A.

Polish Journal of Ecology

|

2003

|

Vol. 51, nr 1

91-99

EN

The physicochemical and epipelic algal analyses in the catchment of lower Bonny river, Nigeria, was carried out between September 1998 and February 1999. A total of 51 species were observed of which Bacillariophyceae had 28 species followed by Cyanophyceae (19 species), Chlorophyceae (2 species), and Euglenophyceae (2 species) respectively. The epipelic algal abundance ranged from 3.2 [plus minus] 0.8 x 108 indiv. cm-2 to 6.3 [plus minus] 0.6 x 108 indiv. cm-2 in wet season and 3.9 [plus minus] 0.3 x 108 indiv. cm-2 to 6.9 [plus minus] 0.6 x 108 indiv. cm-2 in dry season. In addition, chlorophyll a values range from 0.85 [plus minus] 0.15 to 2.61 [plus minus] 0.42 mg cm-2 in wet season and 1.02 [plus minus] 0.12 to 4.45 [plus minus] 0.88 mg cm-2 in dry seasons respectively. This range of variation was relatively narrow and the whole community seems to be persistent and stable during wet and dry seasons.