Mangrove leaves: An undeniably important sink of MPs from tidal water and air

2021 ◽  
pp. 128138
Author(s):  
Ruilong Li ◽  
Chaoxian Wei ◽  
Meng Jiao ◽  
Yijin Wang ◽  
Haifeng Sun
Keyword(s):  
Tidal Water

scholarly journals Contribution of tidal submergence to phosphorus nutrition and yield of rice

1970 ◽  
Vol 8 (2) ◽  
pp. 207-212
Author(s):  
MA Haque
Keyword(s):  
Ground Water ◽  
Field Experiments ◽  
Phosphorus Uptake ◽  
Growth Yield ◽  
Water Source ◽  
Phosphorus Nutrition ◽  
Rice Grain ◽  
Rice Varieties ◽  
Traditional Variety ◽  
Tidal Water

Two pot and two field experiments were conducted at Patuakhali Science and Technology University research farm to investigate the contribution of tidal submergence to phosphorus nutrition and yield of rice. Pot and field experiments were conducted in the Aus and Aman seasons of 2009, respectively. The factorial experiments include two levels of water source- i) tidal water and ii) ground water, and three levels of fertilizers- i) absolute control (no fertilizer), ii) NK (P omission) and iii) NPK (P addition). The rice varieties used were BRRI dhan27 (HYV) and Local Mala (Traditional variety) in Aus season and BR23 (HYV) and Lalmota (Traditional variety) in Aman season. A general increase in growth, yield and yield contributing parameters were found due to irrigation with tidal water. Tidal water contributed about 21 (BR23) and 7 (Lalmota) % higher grain yield in Aman season 2009 and about 2 g biomass yield per pot (both BRRI dhan27 and Local Mala) in Aus season of 2009 compared to ground water. Phosphorus content of rice grain and straw was always higher when plants are irrigated with tidal water. In general tidal submergence increases P uptake of rice. Phosphorus uptake from tidal water treatments increased when plants were supplied with N and K fertilizer. Tidal submergence contributed about 5-6 kg P/ha in P omission plot, and about 12-14 kg P/ha in plots with added P.  Keywords: Phosphorus; Rice; Tidal submergence DOI: 10.3329/jbau.v8i2.7927 J. Bangladesh Agril. Univ. 8(2): 207-212 2010

scholarly journals Influence of biological activity on 65Zn and 109Cd removal from tidal water by chronically-polluted mangrove sediments

2018 ◽  
Vol 316 (2) ◽  
pp. 429-434 ◽  
Author(s):  
M. N. Sondermann ◽  
K. N. Suzuki ◽  
E. C. Machado ◽  
W. Machado ◽  
L. F. Bellido ◽  
...  
Keyword(s):  
Biological Activity ◽  
Mangrove Sediments ◽  
Tidal Water

scholarly journals PENDETEKSI KETINGGIAN LEVEL AIR DENGAN TAMPILAN LCD BERBASIS MIKROKONTROLLER ATMEGA 8 SERTA LED BUZZER DAN SEVEN SEGMENT SEBAGAI PERINGATAN DINI KENAIKAN AIR PASANG (ROB) BERBASIS PROGRAMMABLE LOGIC CONTROLLER CP1E-E40DR-A

2012 ◽  
Vol 17 (1) ◽  
pp. 22
Author(s):  
Rizal Fauzan Adi Rahardjo ◽  
Heru Winarno
Keyword(s):  
Water Level ◽  
Rural Areas ◽  
Sea Water ◽  
Programmable Logic Controller ◽  
Residential Area ◽  
Maximum Height ◽  
Programmable Logic ◽  
Flood Prevention ◽  
Tidal Water ◽  
Lcd Display

Rizal Fauzan Adi Rahardjo, Heru Winarno, in paper water level detection based atmega 8 microcontroller with lcd display, led, buzzer and seven segment as early warning of post water (rob) increase based CP1E-E40DR-A programmable logic controller explain that as a result of the overflow of the tidal sea water in rural areas sriwulan sayung District of Demak , the tidal water easily entered into the residential area , which can be fatal if not in further tackle. Tidal flood has become commonplace in the area Sriwulan Sayung District of Demak . However , the longer the tidal flood is troubling and very disturbing society . So I took the initiative to create a miniature tidal flood prevention . Height of the water level of a river that flows directly into the sea will be detected by the sensor. The sensors will send data to the PLC and will be displayed by the seven segment . Further increase in the water level of the river will also affect the water level in the ditch homes residents . Height of the ditch water level is detected by the sensor which will send data to the PLC and then displayed by seven segment LCD and previously through the microcontroller atmega 8. The maximum height of the water level gutter will be marked with berbunyinya buzzer and LED life. Keywords : Sensor , Seven Segment , Microcontroller Atmega 8 , LCD , LED, buzzer.

scholarly journals The Application of Sector-Scanning Sonar: Strategy for Efficient and Precise Sector-Scanning Using Freedom of Underwater Walking Robot in Shallow Water

Sensors ◽  
2020 ◽  
Vol 20 (13) ◽  
pp. 3654
Author(s):  
Hyuk Baek ◽  
Bong-Huan Jun ◽  
Myounggyu D. Noh
Keyword(s):  
Image Analysis ◽  
Walking Robot ◽  
Sea Trial ◽  
Freedom Of Movement ◽  
Tidal Water ◽  
Strong Current ◽  
Sonar Images ◽  
Robot Technology ◽  
Acquisition Method

In this paper, we discuss underwater walking robot technology to improve the quality of raw data in sector-scanning sonar images. We propose a strategy for an efficient and precise sector-scanning sonar image acquisition method for use in shallow, strong tidal water with a curved and sloped seabed environment. We verified the strategy by analyzing images acquired through a sea trial using the sector-scanning sonar installed on the CRABSTER (CR200). Before creating this strategy, an experiment was conducted to acquire the seabed image near a pier using a tripod and vertical pole. To overcome the problems and limitations revealed through image analysis, we established two technical strategies. In conclusion, we were able to achieve those technical strategies by using the CR200, which is resistant to strong current, and its six legs provide freedom of movement, allowing for a good sonar attitude.

Climatic conditions over the estuary and Firth of Forth, Scotland

1987 ◽  
Vol 93 (3-4) ◽  
pp. 245-258
Author(s):  
S. J. Harrison
Keyword(s):  
East Coast ◽  
High Water ◽  
Surface Interactions ◽  
Climatic Conditions ◽  
Heat Fluxes ◽  
Spatial And Temporal Scales ◽  
Surface Heat Fluxes ◽  
Air Movement ◽  
Tidal Water ◽  
Firth Of Forth

SynopsisThe pattern of climatic variation over estuaries and their environs is, to a considerable extent, controlled by aspect, slope and elevation in addition to orientation of the major relief features with respect to the movement of principal weather systems. Data from the few climatological stations within the immediate vicinity of the estuary and Firth of Forth demonstrate the essentially maritime nature of climate, and indicate also that there is a dominantly west–east gradient of change in most climatological variables. Below the high water mark the movement of water in tidal ebb and flow and river inflow modify atmosphere–surface interactions over relatively short spatial and temporal scales. Observations from a fixed instrument tower on Skinflats in the middle estuary and from Inchkeith Lighthouse indicate that tidal water movements exert varying degrees of control over sub-surface heat fluxes, air movement in the atmospheric boundary layer and the inland penetration of coastal weather systems such as the typical east coast haar.

Long-Term Tidal Water Level Measurements in Abu Dhabi Emirate

2008 ◽  
Author(s):  
Khaled A. Mohamed
Keyword(s):  
Water Level ◽  
Water Levels ◽  
Abu Dhabi ◽  
Tidal Analysis ◽  
Tidal Motion ◽  
Tidal Water ◽  
Abu Dhabi Emirate ◽  
Tidal Constituents ◽  
Water Level Measurements

Abu Dhabi Emirate, United Arab Emirates has a unique tidal system. Understanding the tidal hydrodynamics in Abu Dhabi waters is very important for the design of the hydraulic structures and in the marine environmental studies. The objective of this study is to investigate the tidal water levels and tidal motion in Abu Dhabi, making use of the long-term water levels available. To achieve the aim of the study, the National Energy and Water Research Center (NEWRC) of Abu Dhabi Water and Electricity Authority installed tidal gauges at different locations in Abu Dhabi waters to obtain long-term water level measurements. At present, long-term water level measurements for at least 3 years period are available at different locations in Abu Dhabi waters. Tidal analysis was carried out on the available data to determine the characteristics of the tidal wave in Abu Dhabi Emirate and to get the main tidal constituents affecting the tidal motion. The obtained tidal constituents are used in updating and improving the boundary conditions of the numerical hydrodynamic models simulating the flow pattern in Abu Dhabi waters. The set up of the water level measurement program in Abu Dhabi waters and the results of the tidal analysis are presented and discussed in the paper.

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