American Journal of Geographical Research and Reviews


Relationship among Ballast Water, Bioincrustration and Invasion of Exotic Species

Research Article of American Journal of Geographical Research and Reviews Relationship among Ballast Water, Bioincrustration and Invasion of Exotic Species EVANDRO VALENTIM DA SILVA, CARLA ANDREA DE MOURA, RITA DE CASSIA XAVIER DE CARVALHO, FÁLBA BERNADETE RAMOS DOS ANJOS Most species of seaweed that are transported through ballast water may have been transferred also by bioincrustration. Macroalgae of the genus Caulerpa, are native to the Mediterranean. C. taxifolia is an algae indicator of conditions, often harmful, and sometimes irreversible, to the ecosystems of the invaded areas. It is necessary to implement control measures to minimize damage to the endemic species and its im-pact on the areas of occurrence. This study aimed to assess the occurrence of exotic algae on and their relationship and distribution on the coast of Pernambuco, during periods of dry and rainy seasons from 2005 to 2009. Macroalgae were fixed in con-solidated and unconsolidated substrates, being also associated with other algae and even occurring as loose fragments in the sandstone reef. These fragments could be the result of anthropogenic activities or local hydrodynamics. The absence of sea ur-chins and other herbivores associated with C. taxifolia sites pointing to an allelopathic action in the process of colonization. We consider that Caulerpa taxifolia may have been introduced recently in our coast being in process of colonization growing itself most often in sandstone reefs, which suggests an action in inhibiting herbivory through the synthesis of allelochemicals. Keywords:Macroalgae, Caulerpa racemosa, Caulerpa taxifolia, ecology, herbivory, allelochemicals ...

THE UTILITY OF GEOSPATIAL TECHNOLOGY IN URBAN MORPHOLOGICAL STUDIES: A REVIEW

Review Article of American Journal of Geographical Research and Reviews THE UTILITY OF GEOSPATIAL TECHNOLOGY IN URBAN MORPHOLOGICAL STUDIES: A REVIEW Maurice Onyango Oyugi School of the Built Environment, Department of Architecture and Building Science, University of Nairobi, Nairobi, Kenya. Increasing urbanisation, poor location of urban amenities and utilities in consideration to population concentration has made many cities face environmental, land use and socio-economic challenges. This can be mitigated against through the analysis of the interactions existing between urban natural and human systems as provided for by the geospatial technology notably Remote Sensing, Geographical Information Systems (GIS) and Photogrammetry. This has made geospatial technology gain primacy in the urban studies and literature on the utility of geospatial techniques in the analysis and modelling of urban morphology has grown over the years. This paper therefore, anchors an understanding on the urban morphology and the role of geospatial techniques in studying the same. Keywords: Geospatial Technology, Urban Morphology, Land Use and Land Cover ...

The Research of the Willingness and Factors of Households Transfer Land in Exurban Area

Research Article of American Journal of Geographical Research and Reviews The Research of the Willingness and Factors of Households Transfer Land in Exurban Area Jiang Kuo1 and Li Yue2 1School of Business,Hubei University, Wuhan City, Hubei Province 430062 2School of Business,Hubei University, Wuhan City, Hubei Province 430062 Due to the natural factors such as location, the farmer in exurban area can’t get the added value of land, so they attach less and less importance to land.Land transfer is one of the effective methods to realize the increasing value of farmers their own land. According to the survey data of 268 households from Jinhu sub-district office, Daye city for two exurban villages ,this article used the Binary logistic model and make regression analysis from 5 aspects such as individual characteristics of rural households,family characteristic, characteristics of land transfer, cognition of land and social factors, to explore the main factors for affecting the willingness of rural households in exurban area to transfer land, and put forward the the corresponding policy recommendations. Keywords: Exurban; Land transfer; Factors; Logistic model ...

A Verification Method of Thermo- infrared Remote Sensing Temperature Retrieval Algorithm with a CFD Model

Research Article of American Journal of Geographical Research and Reviews A Verification Method of Thermo- infrared Remote Sensing Temperature Retrieval Algorithm with a CFD Model Yong Zhang1,*, Zhiqiang Yao1, Yingbao Yang2, Leqin Zhang1, Xin Pan2 1College of Natural Resources and Environment, Chizhou University, No.199 Muzhi Road,Chizhou 247000, China 2School of Earth Science and Engineering, Hohai University, 8 Buddha CityWest Road, Nanjing 210098,China Due to the thermal infrared remote sensing inversion of surface corresponds to the surface temperature of the image pixels is planar, the inversion algorithm of authentication, rarely considering the reference temperature data and inversion of surface temperature on like yuan scale problems.ENVI - met based on the CFD model to simulate the nanjing jiangning district land surface temperature, and by the methods of measurement of analog temperature verification, proved ENVI - met the error of the model to simulate the surface temperature of 0.6 0C, meet the verification accuracy of temperature inversion algorithm.Using ENVI - met model of Landsat8 data. Keywords: land surface temperature; CFD; ENVI-met; cross validation ...

Professor Dr. M. Jayachandran
Chief Scientist & Professor of AcSIR, CSIR-New Delhi; Head, Electrochemical Materials Science Division, CSIR-Central Electrochemical Research Institute, Karaikudi

Prof. Dr. Gehad Mohamed Saleh
Professor of Geology, Vice Head of Research Sector of Geology, Supervisor Abu Rasheid – Halayib project, Nuclear Materials Authority, Cairo, Egypt.

Dr. Shailesh Kumar Singh
Hydrologist, National Institute of Water and Atmospheric Research Ltd. 10 Kyle street, Riccarton Christchurch, New Zealand

Dr. Suhaib Bin Farhan
Pakistan Space & Upper Atmosphere Research Commission (SUPARCO)

Professor Lev V. Eppelbaum
Research Professor, Dept. of Geosciences, Tel Aviv University, Chairman of KAMEA Assoc. at TAU, Ramat Aviv 69978, Tel Aviv, Israel, Foreign Member of the Russian, Academy of Natural Sciences

Dr. D. Madan
Associate Professor, Dept of Mech, Sri indu college of engineering and technology, Hyderabad

Dr. Alexander Kokhanovsky
VITROCISET, Darmstadt, Germany

Dr. Daniel Anthoni Sihasale
Pattimura University

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