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Coastal Dune Vegetation of South Korea  [cached]
Lee, Jeom-Sook,Byung-Sun Ihm,Du Sung Cho,Jong-Wook Kim
Journal of Ecology and Field Biology , 2007,
Abstract: We used the Braun-Blanquet method to study coastal dune vegetation of South Korea. Coastalvegetation was monitored in thirty sites from April 2004 to September 2005. Seventeen plant communities wereclassified into five groups as follows: A. Two associations of herbaceous sand dune plants in Salsoleteakomarovii Ohba, Miyawaki et Tx. 1973 (Calystegia soldanella community, Lathyrus japonicus-Calystegia soldanellacommunity), B. Twelve associations of herbaceous perennial sand dune plants in Glehnietea littoralis Ohba,Miyawaki et Tx. 1973 (Carex pumila community, Elymus mollis community, Vitex rotundifolia-Elymus mollis community,Ixeris repens community, Elymus mollis-Ixeris repens community, Lathyrus japonicus community,Messershmidia sibirica community, Glehnia littoralis community, Carex kobomugi community, Calystegia soldanella-Carex kobomugi community, Ishaemum anthephoroides community, Zoysia macrostachya community), C.One association of shrubby perennial sand dune plant in Viticetea rotundifoliae Ohba, Miyawaki et Tx. 1973(Vitex rotundifolia community), D. One association of shrubby perennial sand dune plant in Rosetea multifloraeOhba, Miyawaki et Tx. 1973 (Rosa rugosa community), E. The naturalized community (Diodia teres community).
Herpetofauna and habitat characteristics of 16 lagoons along the eastern coastline of South Korea  [cached]
Jung-Hyun Lee,Daesik Park,Heon-Joo Lee,Ja-Kyeong Kim
Journal of Ecology and Field Biology , 2010,
Abstract: We conducted field surveys of amphibians and reptiles over a two-year period in 16 lagoons along the eastern coastlineof South Korea, and determined the habitat characteristics correlated with the number of amphibian and reptilianspecies and individuals. We documented 11 amphibian species and 8 reptilian species. The dominant amphibian specieswas the black-spotted pond frog (Rana nigromaculata), and the dominant reptilian species was the red-eared turtle(Trachemys scripta elegans), an invasive species. Among the 14 habitat characteristics, connectivity to mountainous areasignificantly affected the number of amphibian and reptilian individuals. Other factors, including emerged plant cover,salinity, pH, the number of birds for amphibians and connectivity to agricultural land, lagoon perimeter length for reptilesalso influenced the number of species or individuals of them. Our results demonstrate that these lagoons are hometo more amphibians and reptiles than has been previously known. To effectively conserve herpetofauna in the lagoonecosystem, lagoons as well as surrounding wetlands, grasslands, and mountainous areas should be protected.
Amazonian coastline candy coastal in the Amapá and Pará States, Brazil  [PDF]
Dário Dantas do Amaral,Maria Thereza Prost,Maria de Nazaré do Carmo Bastos,Salustiano Vilar Costa Neto
Boletim do Museu Paraense Emílio Goeldi : Ciências Naturais , 2008,
Abstract: Coastal beach vegetation in the Amazon River delta (Pará and Amapá states, Brazil) occupies an estimated area of 1000 km2, less than 0,1% of the area occupied by other types of Amazonian vegetation. This study aims to characterize beach ecosystems of the northern Brazilian states of Pará and Amapá, based on their floristic composition (including the first species checklist for the region), vegetation classification, and geomorphology, and to establish a classification of the different types of beach vegetation in Amazonian coastal areas. Ten areas of beach vegetation were investigated on the Pará and Amapá coasts. The checklist includes 365 plant species in 237 genera and 88 families, with information on life forms, popular names, predominant vegetation community, and geographical occurrences along the coast. Three phases of beach vegetation are recognized: (1) pioneer or establishment phase, (2) intermediate or transition phase, and (3) consolidation phase. Amazonian beach ecosystems are unprotected since they lie outside of any non-use conservation unit. It is urgent that they be included in protected areas because of their vulnerable and restricted floras, some species of which are threatened with local extinction due to current high levels of human exploitation of these areas.
Hazards and risks associated to coastal processes along the southern Brazilian coastline: A synthesis. Perigos E Riscos Associados A Processos Costeiros No Litoral Sul Do Brasil (RS): Uma Sintese
Lauro J. Calliari,R. M. C. Guedes,R. F. Lélis,J. A. Antiqueira
Brazilian Journal of Aquatic Science and Technology , 2010,
Abstract: Some processes related to hydrodynamics, geomorphology and sediment movement represent coastal hazards and risks along the littoral of Rio Grande do Sul (RS) state in southern Brazil. The hazards imply in coastal erosion, habitat loss and environmental change. The risks are related to serious accidents including fatalities to the coastal users. Shoreface morphology, storms and washouts induce erosion at specific locations of the coastline. Storms and washouts, together with beach morphodynamics and depositional processes both aeolian and hydrodynamic embody latent risks to the physical integrity of people that live in and use this environment. Wave refraction patterns from SE to SW cause erosion in two coastal sectors at the proximities of Concei o Lighthouse and Hermenegildo Beach respectively located at the central and southernmost portion of the RS coastline. In both areas, the high number of washouts amplifies the erosion destroying foredunes and the subaerial beach. In addition, the lowlands of the barrier adjacent to small pocket lagoons in the northern littoral are more susceptible to washout erosion. Both, the refraction patterns and the washouts can be associated with two storms tracks and extra-tropical cyclones which magnify erosion and inundation of the coastal zone. The combination of higher population during summer seasons and intermediate beaches with considerable amounts of medium sand make beaches from the northern littoral and extreme south more risky for bathers. Coastline orientation in relation to the predominant NE wind causes wind-blow sand to invade the coastal plain in the form of transgressive dunes causing several hazards mainly in the northern littoral between Tramandaí and Mostardas. Short-term effects associated with episodic events of mud deposition during heavy storms on Cassino Beach influence the morphodynamics behavior on the sectors affected by the mud deposits creating coastal risks relating to beach usage. Some processes related to hydrodynamics, geomorphology and sediment movement represent coastal hazards and risks along the littoral of Rio Grande do Sul (RS) state in southern Brazil. The hazards imply in coastal erosion, habitat loss and environmental change. The risks are related to serious accidents including fatalities to the coastal users. Shoreface morphology, storms and washouts induce erosion at specific locations of the coastline. Storms and washouts, together with beach morphodynamics and depositional processes both aeolian and hydrodynamic embody latent risks to the physical integrity of people that liv
Analysis of Rice Yield Differences for Inland and Coastal Regions in South Korea  [PDF]
Jonghan Ko,Dong Ha Cho,Jin Kwan Ham,Youn Su Lee
Journal of Agronomy , 2005,
Abstract: Rice production improvement could be obtained with continuous efforts to overcome meteorological factors affecting crop growth. Meteorological factors and rice yield components were compared between inland (Chuncheon city) and coastal (Kangreung city) regions to illustrate the causes of the rice yield decrease in the coastal region. During the rice growing period from 1 May to 15 October, the difference in daily average air temperature between the two regions was not noticeable. However, diurnal range of temperature and solar radiation were higher at Chuncheon than at Kangreung. Average wind velocity was higher at Kangreung. Rice yield components, grains per panicle was lower by 16.7 and ripening ratio was lower by 4.9% at Kangreung. Thus, rice yield was lower at Kangreung (4,392 kg ha-1) by 655 kg ha-1 than at Chuncheon (5,047 kg ha-1). The correlation analyses revealed that the lower rice yield at Kangreung could be attributable mainly to lower diurnal range of air temperature and solar radiation during panicle development and ripening stages which cause the lower number of grains per panicle and the lower grain ripening. The results could provide rice researchers and farmers information about required cultivar characteristics to overcome the meteorological conditions in coastal regions.
Bacterial Diversity in the Rhizosphere of Halophyte Phragmites communis at the Western Coastal Mudflats of Korea
Moon, Ho-Sang,Suhk-Hwan Park,Jong-Ok Ka,Hong-Gyu Song
Journal of Ecology and Field Biology , 2008,
Abstract: This study investigated the population densities and diversity of heterotrophic bacteria, and therhizosphere-to-soil ratios (R/S) in the rhizosphere soil of halophyte Phragmites communis at the western coastalmudflats of Korea. The population densities of aerobic heterotrophic bacteria on the rhizosphere soil of P. communiswere in the range of 3.3 ± 0.9 × 107~1.2 ± 0.5 × 108 cfu g-1 dry weight (d. wt.). Population densities ofamylolytic bacteria ranged from 1.1 ± 0.2 × 106 to 3.0 ± 1.2 × 106 cfu g-1 d. wt., while those of cellulolytic bacteriaand proteolytic bacteria ranged from 5.6 ± 2.3 × 106 to 1.5 ± 0.3 × 107 cfu g-1 d. wt. and from 1.4 ± 0.3 × 106to 3.5 ± 2.3 × 107 cfu g-1 d. wt., respectively. The R/S ratios ranged from 2.26 to 6.89. Genetic (16S DNA) analysisof fifty-one isolates from the roots of P. communis suggested that the dominant species were closely relatedto the γ-proteobacteria group (18 clones) and the α-proteobacteria group (14 clones). We found that halophytespecies and mudflat environment both affected the rhizosphere bacterial communities.
Observation and Change Analysis of Coastline in the Cisadane Coast, Banten Province
M. Salam Tarigan
Makara Seri Sains , 2007,
Abstract: The observation of coastline in the Cisadane coastal waters, Banten Province from Tanjung Pasir to Rawa Saban were carried out in July, 2005 and November, 2005. Based on the results of observation coastline in the year of 2005 and over lay with the results of coastline digitation analysis from image landsat 5 TM in the year 1997, we found several abration and acration areas, which may be due to the effects of human activities and natural fenomena such as, hight current and hight wave during moonson over that area.
Protecting the Biodiversity of the Arabic Gulf’s Coastal Waters from Agricultural and Industrial Runoff Case Study-Saudi Arabia  [PDF]
D. Alzahrani,Huda Alqasmi
International Journal of Social Science and Humanity , 2013, DOI: 10.7763/ijssh.2013.v3.195
Abstract: The protection of environment especially marine resources has become a challenge since the 20th century. Many factors contribute this problem especially the increase demand of growing economy and industry. This article will critically examine and evaluate the Saudi Arabian efforts in protecting the marine environment especially the Arabic Gulf through analysing both national and international environmental laws in addition to the current environmental challenges in Saudi Arabia.
From the coastline to the open sea: recent research in geography  [cached]
Lydie Goeldner-Gianella
EchoGéo , 2012,
Abstract: The growth of population and human activity in coastal environments, as well as the level of erosion and coastal flooding, which is liable to worsen due to climate change, means that research on the sea and the coastline is becoming ever more necessary and socially useful. Through such research a variety of issues can be addressed, in the areas of defense and economics as well as ecology, society, and natural heritage. Since these issues are analyzed conjointly, it seems worthwhile to bring t...
Comparison of the bright band characteristics measured by Micro Rain Radar (MRR) at a mountain and a coastal site in South Korea
Comparison of the Bright Band Characteristics Measured by Micro Rain Radar (MRR) at a Mountain and a Coastal Site in South Korea

Joo-Wan Cha,Ki-Ho Chang,Seong Soo Yum,Young-Jean Choi,
Joo-Wan CHA
,Ki-Ho CHANG,Seong Soo YUM,Young-Jean CHOI

大气科学进展 , 2009,
Abstract: Data from a long term measurement of Micro Rain Radar (MRR) at a mountain site (Daegwallyeong, DG, one year period of 2005) and a coastal site (Haenam, HN, three years 2004--2006) in South Korea were analyzed to compare the MRR measured bright band characteristics of stratiform precipitation at the two sites. On average, the bright band was somewhat thicker and the sharpness (average gradient of reflectivity above and below the reflectivity peak) was slightly weaker at DG, compared to those values at HN. The peak reflectivity itself was twice as strong and the relative location of the peak reflectivity within the bright band was higher at HN than at DG. Importantly, the variability of these values was much larger at HN than at DG. The key parameter to cause these differences is suggested to be the difference of the snow particle densities at the two sites, which is related to the degree of riming. Therefore, it is speculated that the cloud microphysical processes at HN may have varied significantly from un-rimed snow growth, producing low density snow particles, to the riming of higher density particles, while snow particle growth at DG was more consistently affected by the riming process, and therefore high density snow particles. Forced uplifting of cloudy air over the mountain area around DG might have resulted in an orographic supercooling effect that led to the enhanced riming of supercooled cloud drops.
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