نتایج جستجو برای: coastal area

تعداد نتایج: 629476  

2003
RATANA CHUENPAGDEE DANIEL PAULY

Stresses impacting the coastal zone in the Asia-Pacific region are briefly reviewed under the headings of sustainable coastal activities, coastal ecosystem management, community/resource interactions, coastal resource economics and sustainability, coastal area planning, and integrated coastal policies. Recent contributions on mitigation of these stresses are introduced, with emphasis on the Coa...

2012
Liu Peng

Sea reclamation works and fish farming are increasingly common in coastal zones, and how to accurately and rapidly extract the coastal aquaculture area is important for the development of coastal zones. This paper discusses a CBR (case-based reasoning) method. Firstly, using a 10 meter resolution of a multi-spectral remote sensing image of Eastern Guangdong over ten thousands of spatial, spectr...

2017
Xi Xiao Susana Agusti Fang Lin Ke Li Yaoru Pan Yan Yu Yuhan Zheng Jiaping Wu Carlos M. Duarte

China is facing intense coastal eutrophication. Large-scale seaweed aquaculture in China is popular, now accounting for over 2/3's of global production. Here, we estimate the nutrient removal capability of large-scale Chinese seaweed farms to determine its significance in mitigating eutrophication. We combined estimates of yield and nutrient concentration of Chinese seaweed aquaculture to quant...

Given the importance of availability sufficient and accurate information on the structural characteristics of mangroves to develop conservation and restoration programs for these ecosystems, this study investigates and maps the structural characteristics of the coastal and island forms of the mangroves in the Hara Biosphere Reserve. To this end, through a field inventory (32 sample plots with t...

2012
James Madzimure Kerstin K. Zander Kennedy Dzama Michael Chimonyo

After the outbreak of classical swine fever (CSF) in the Eastern Cape Province of South Africa, policy makers are expected to make decisions on the restocking of pigs. The objective of this study was to investigate farmers’ perceptions of CSF outbreak in coastal and inland communal production systems because of their differences in harbouring pathogens. Data were collected from 288 farmers in t...

Journal: :Remote Sensing 2018
Dengqiu Li Dengsheng Lu Ming Wu Xuexin Shao Jinhong Wei

Land cover changes significantly influence vegetation greenness in different regions. Dense Landsat time series stacks provide unique opportunity to analyze land cover change and vegetation greenness trends at finer spatial scale. In the past three decades, large reclamation activities have greatly changed land cover and vegetation growth of coastal areas. However, rarely has research investiga...

2006
Sang-Hoon Hong Joong-Sun Won

Digital elevation models (DEMs) of a coastal area in a time series are very useful to monitor annual and seasonal coastal morphologic changes. Topographic features in coastal regions change significantly within a relatively short period compared with landmass. However, it is difficult to obtain coherent interferometric SAR pairs over coastal areas. ERS-ENVISAT 30-minute tandem pair is useful to...

1943
A. S. Johnson

. evoked the interest of doctors in this hospital. Dr. K. T. Kurian, my co-worker in the medical wards, has had occasion to note the diet of the people in three or four centres, and he has intimate knowledge of the habits and natural conditions of this northern part of Travancore. In the assessment and evaluation of the setiological factors, therefore, his information and help have been found v...

Journal: :تحقیقات جغرافیایی 0
امیر حسین حلبیان گروه جغرافیا، دانشگاه پیام نور فرشته حسینعلی پور جزی مدرس مدعو دانشگاه پیام نور باغبهادران

in this research, the frequency of the jet streams associated with extreme and pervasive precipitation has been analyzed using environmental to circulation approach. based on the 99th percentile index, 109 days of the extreme and pervasive precipitation was selected from the irimo data base ( including 33 synoptic, climatic and rain gage stations during 15992 days from farvardin, 1st, 1340 to d...

2008

Coastal marine environment is a complex system and its management requires adequate information. Marine Protected Areas (MPAs) are considered pilot sites useful to define innovative tools for the Integrated Coastal Zone Management (ICZM). Their management requires however acquaintance with the relationships between the protected site and the status of the coastal neighbouring areas in order to ...

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