-
Effects of Seismic Data Acquisition on the Environment – RomSeis Project
Dorina Alina Dragut,
Gehrig Schultz,
Victor Mocanu
Issue:
Volume 4, Issue 3, May 2016
Pages:
44-48
Received:
15 March 2016
Accepted:
24 March 2016
Published:
1 April 2016
Abstract: Complex structures like the Carpathian Orogen and its neighbouring platforms and related inter-orogenic basin system can be understood only by complex integration of complementary investigative tools. A large wide angle refraction and reflection (WARR) survey was carried out in 2014 by a large international partnership in order to study the transition from the East European Platform to the northern part of the Romanian Eastern Carpathians, Transylvanian Basin and the Apuseni Mountains. The main scientific objectives of the WARR project relate to three main investigation domains: crustal architecture; affinity of crystalline basement and sedimentary basins architecture. The profile is about 700 km in total, in Ukraine and Romania. Recorders used were DSS Cubes and placed at 2.0 km intervals along an alignment forming the Romanian segment and the seismic sources were explosives, with shotpoints spaced at 20-65 km with a total of 800-1200 kg explosives/site in clusters of drill-holes loaded with 50 kg explosive/hole, average depth of 25 m. The main conclusions drawn from deep seismic data acquisition technology used is a clean technology, transient, short-lived and do not affect population health, the environmental factors flora and fauna.
Abstract: Complex structures like the Carpathian Orogen and its neighbouring platforms and related inter-orogenic basin system can be understood only by complex integration of complementary investigative tools. A large wide angle refraction and reflection (WARR) survey was carried out in 2014 by a large international partnership in order to study the transit...
Show More
-
The Soil Heavy Metals Element Release and Migration Characteristics of Hengshihe River Both Sides for Guangdong Dabaoshan
Issue:
Volume 4, Issue 3, May 2016
Pages:
49-57
Received:
7 May 2016
Published:
19 May 2016
Abstract: This paper through soil environment investigation and sampling analysis of Hengshihe River both sides of Shao guan Dabaoshan mining, along the route of the acidic mining waste water flows, and selected 6 research division of the Liangqiao, Shui louxia, Tangxin, Yanghe-lianxin, Shangba and Xiaba village, to analyze the pollution source and discusses the pollution element migration patterns and characteristics of Dabaoshan mine. The results show that the Dabaoshan mine original high background values of heavy metals pollution and the secondary pollution caused by mining activities of superimposition and accumulation is the important source of pollution. The migration ability of heavy metal elements in soil is Cd > Cu > Pb > zinc. The Cd elements have to be considered as an optimization control of soil restoration governance elements in Dabaoshan pollution area.
Abstract: This paper through soil environment investigation and sampling analysis of Hengshihe River both sides of Shao guan Dabaoshan mining, along the route of the acidic mining waste water flows, and selected 6 research division of the Liangqiao, Shui louxia, Tangxin, Yanghe-lianxin, Shangba and Xiaba village, to analyze the pollution source and discusses...
Show More
-
Diversity of Dragonflies (Insecta: Odonata) in a Deciduous Forest of Thoothukudi District, Tamil Nadu, South India
Anita Kannagi,
V. Sivakumar,
V. Santhi
Issue:
Volume 4, Issue 3, May 2016
Pages:
58-63
Received:
16 May 2016
Published:
19 May 2016
Abstract: The study of Odonata communities along deciduous forest requires the basic understanding of the abundance, distribution and number of species present. As habitat conditions change, they also exhibit changes in their diversity and distribution. The present study was carried out in Kuthiraimozhi theri deciduous forest located in Thoothukudi District, Tamil Nadu, South India during July 2009 to June 2010 to assess the diversity of odonates. The forest is open, sandy, low tree lands with predominance of thorny, usually hard wood species. Observations were carried out twice in a month during morning, and evening times. A total of 958 dragonflies belonging to 20 species (2 species unidentified) belonging to 16 genera and 4 families were recorded. The family Libellulidae (15 species) was found to be dominant in the study region, followed by families Aeshnidae, Chlorogomphidae and Gomphidae, which were represented by a single species. The data was analyzed for Species richness, Shannon’s diversity index and Simpson’s index. Maximum number (237) of dragonflies was collected during December 2009 and the highest Species richness (2.35) and Shannon’s diversity index (2.08) was recorded during June 2010. This study has shown that, Odonata diversities along the Kuthiraimozhi theri deciduous forest vary hence these populations can be monitored, related and used as indicators of the physical structure of the deciduous forest and its surrounding ecotones. This inventory has served as the baseline for Odonata communities in the deciduous forest hence can be a measure of monitoring in the near future. Finally, there must be an increase in education on the importance of using local insect species as first level indicators of environmental health which when improved upon can save the nation a lot of money otherwise used in the chemical evaluation and monitoring of environment.
Abstract: The study of Odonata communities along deciduous forest requires the basic understanding of the abundance, distribution and number of species present. As habitat conditions change, they also exhibit changes in their diversity and distribution. The present study was carried out in Kuthiraimozhi theri deciduous forest located in Thoothukudi District,...
Show More
-
Isolating Bioactive Compound from Marine Prosobranch Purpura persica from Tuticorin Coast
Santhi V.,
V. Sivakumar,
S. Jayalakshmi,
R. D. Thilaga,
M. Mukilarasi
Issue:
Volume 4, Issue 3, May 2016
Pages:
64-76
Received:
16 May 2016
Published:
19 May 2016
Abstract: Antibiotics have revolutionized life saving medicine by providing cure for many number of life threatening diseases in human history, unexpectedly, many pathogenic microorganisms have developed resistant towards current antibiotic and this trend has become more and more serious. Hence the present study has been aimed to find out new marine derived antibiotic from Prosobranch mollusc Purpura persica. The whole body crude extract of methanol was partially purified by normal phase silica gel 160-120 mesh (Glaxo, Bombay) column chromatography with low polar to high polar solvent Hexane: Chloroform (F1); Chloroform (F2); Benzene (F3); Benzene: Methanol (F4), and Methanol F5). The antimicrobial activity of crude and eluted fractions were assayed against ten bacterial pathogens viz Aeromonas hydrophila, Bacillus cereus, Escherichia coli, Pseudomonas aerogenosa, Salmnella typhi, Shigella flexneri, Vibrio cholera 0139, Vibrio cholera classical, Vibrio cholerae 01790 and Vibrio cholerae EITOR and nine fungal pathogens viz. Aspergillus flavus, Aspergillus terreus, Aspergillus niger, Aspergillus fumigatus, Fusarium moniliforme, Trichoderma sp. Penicillium citrinum, Penicillium oxallicum and Rhizopus sp. respectively using the agar disc diffusion method. To find out the most probable antibiotic compound HPLC and GC-MS studies were carried out. Among the tested bacterial pathogens S. typhi, P. aerogenosa, S. flexneri and B. cereus and fungal pathogens A. fumigatus, A. terreus, F. moniliforme and Trichoderma sp. showed inhibition in growth by crude, F2, F3 and F5 fractions of P. persica respectively. The GC-MS and HPLC analysis revealed the presence chloridate cholest-5-en-3-01(3a) - carbano chloridate, a chloride compound 9, 12-octadecadienoyn chloride (z, z), and a cholest-5-en-3-ol(3)-carbonochloridate, eugenol, dibutyl phthalate, 1,2-Benzenedicarboxylic acid, diisooctyl ester and Phthalic acid, bis (7-methyloctyl) ester, and a steroid cholest-5-ene, 3-bromo-(3a), 2-piperidinone a monoterpene azulene, a fluro compound acetic acid, tri fluro- tetradecyl which were responsible for inhibiting the growth of microbes tested and the present test organism P. persica have great potential for developing useful drugs.
Abstract: Antibiotics have revolutionized life saving medicine by providing cure for many number of life threatening diseases in human history, unexpectedly, many pathogenic microorganisms have developed resistant towards current antibiotic and this trend has become more and more serious. Hence the present study has been aimed to find out new marine derived ...
Show More
-
Earthworm: A Potential and Sustainable Source for Soil Fertility – An Altitude Based Biophysical Study
M. Kanchilakshmi,
Arockiam Thaddeus
Issue:
Volume 4, Issue 3, May 2016
Pages:
77-85
Received:
22 May 2016
Published:
23 May 2016
Abstract: An altitude based study was undertaken in the present investigation to find out the status of ecological indices of earthworms in turn to assess the fertility of the soil. Evidences are ample to prove that the physico chemical factors of the environment /soil are responsible for greater ecological indices of earthworms. In the present investigation also it was proved that the earthworm abundance is responsible for the soil fertility for which supportive studies were made on 1. the population dynamics of earthworms, 2. Size of body pores on the skin of earthworms and the secretion of coelomic fluid and the 3. Physico chemical factors of the soil in the area surveyed. It was also found that the earthworm abundance was found to be greater in Meghamalai hills of Theni district compared to that of Sirumalai hills of Dindigul district but when the plains and hills of both the district were compared the earthworm population was found to be more in the plains. Atomic force microscopic studies were also made to measure the size of the body pores of the skin of earthworms of plains and hills. It was found that the number of body pores is more and their size is also larger in the earthworms of plain lands. As a result ceolomic fluid secretion was more. The coelomic fluid contains more than forty proteins and exhibits several biological activities and it supplements the soil with nutrients. Moreover, physical parameters of the soil samples of hills and plains such as rainfall and temperature and chemical parameters such as Ec, pH, Nitrogen, Phosphorous, Potassium, Calcium, Magnesium, Iron, Zinc, Copper, Boron, were found to be conducive for the growth and multiplication of earthworms in the soil of the plain lands than the hills. Hence, it can be concluded that the earthworm population has got its influence on soil fertility; the more the number of earthworms, more availability of coelomic fluid, which indirectly influences the fertility of the soil, enhances the economy of the nation and the world at large. In total the global worming suppresses global warming.
Abstract: An altitude based study was undertaken in the present investigation to find out the status of ecological indices of earthworms in turn to assess the fertility of the soil. Evidences are ample to prove that the physico chemical factors of the environment /soil are responsible for greater ecological indices of earthworms. In the present investigation...
Show More
-
Urban Environment Problems Related to Climate Change and Improvement Strategies in Large Cities—the Case of Shenzhen, China
Issue:
Volume 4, Issue 3, May 2016
Pages:
86-92
Received:
21 May 2016
Published:
24 May 2016
Abstract: In modern society, the environmental issues have played an increasingly crucial role in the development of a city, along with the accelerating velocity of development and the extension of scale. City climate is closely related to city planning. Meanwhile city planning should take fully consideration on the issue of climate in order to support sustainable development of a city and the ecological city construction. This paper takes Shenzhen, which is representative of modern cities of China, as an example to analyze current situation and characteristics of the climatic environment in big cities with rapid developing process. The aim is to find out the problems gradually appearing in the rapid growth, particularly environmental pollution and severe urban heat island effect. By analyzing its causes and solving those problems with the help of urban planning, we hope fast growing cities can develop in a more rational way.
Abstract: In modern society, the environmental issues have played an increasingly crucial role in the development of a city, along with the accelerating velocity of development and the extension of scale. City climate is closely related to city planning. Meanwhile city planning should take fully consideration on the issue of climate in order to support susta...
Show More
-
The BP Neural Network for Improvement of Classification Accuracy in Remote Sensing Image
Ming Yu,
He-Rong Wang,
Ting Lan
Issue:
Volume 4, Issue 3, May 2016
Pages:
93-97
Received:
6 June 2016
Published:
7 June 2016
Abstract: Remote sensing (RS) data classification is one of the core functions of the system of remote sensing image processing. In this study, back propagation (BP) neural network was introduced into the application of remote sensing image with implementation of MATLAB. To improve measurement accuracy, the BP neural network application includes two schemes of different transfer functions; and 3, 5 and 7 bands of RS images of Landsat 8 OLI were used for validate the accuracy of classification. The experimental results proves that this algorithm is better than tradition classification of supervise and non - supervise methods. Classification accuracy increases as more band information is given; scheme 2 has high classification accuracy than scheme 1. The research results have a certain reference value for the rational use of land resources.
Abstract: Remote sensing (RS) data classification is one of the core functions of the system of remote sensing image processing. In this study, back propagation (BP) neural network was introduced into the application of remote sensing image with implementation of MATLAB. To improve measurement accuracy, the BP neural network application includes two schemes...
Show More
