<i>Sustainable Irrigation as a Conservation Measure in Frisco, Texas</i>

2021 ◽  
Author(s):  
Ronald E Garcia
2019 ◽  
Vol 50 (4) ◽  
pp. 198-207
Author(s):  
Ioannis Gravalos ◽  
Avgoustinos Avgousti ◽  
Theodoros Gialamas ◽  
Nikolaos Alfieris ◽  
Georgios Paschalidis

Water supply limits and continued population growth have intensified the search for measures to conserve water in urban gardening and agriculture. The efficiency of water use is depended on performance of the irrigation technologies and management practices. In this study, a robotic irrigation system was developed that consists of a moving bridge manipulator and a sensor-based platform. The manipulator constructed is partly using open-source components and software, and is easily reconfigurable and extendable. In combination to the sensor-based platform this custommade manipulator has the potential to monitor the soil water content (SWC) in real time. The irrigation robotic system was tested in an experimental soil tank. The total surface of the soil tank was divided by a raster into 18 equal quadrants. The water management for maintaining water content in the soil tank within tolerable lower limit (refill point) was based on three irrigation treatments: i) quadrants whose SWC is below the refill point are irrigated; ii) quadrants are irrigated only when the daily mean SWC of the tank is below the refill point and only for those whose actual SWC is lower than that limit; and iii) quadrants are irrigated every two days with constant amount of water. A comparison of the results of the three irrigation treatments showed that the second treatment gave less irrigation events and less applied water. Finally, we could conclude that the performance of the fabricated robotic system is appropriate and it could play an important role in achieving sustainable irrigation into urban food systems.


2015 ◽  
Vol 7 (1) ◽  
pp. 501-530 ◽  
Author(s):  
Denzil G.M. Miller

The ‘Final Act of the Conference on the Conservation of Antarctic Marine Living Resources’ included a statement made on 19 May 1980 by its Chairman. The ‘Chairman’s Statement’ addressed the CAMLR Convention’s application in waters adjacent to the Kerguelen and Crozet Islands over which France exercises jurisdiction by virtue of its sovereignty over the islands. The Statement included explicit reference to waters adjacent to other islands within the CCAMLR Area, where the existence of State sovereignty is recognised by all the Convention Contracting Parties. In 2007 the CCAMLR Performance Review noted the increasing frequency with which some Commission Members were invoking the Chairman’s Statement. In particular, the Review Panel expressed the view that a point has been reached where any Conservation Measure adopted by CCAMLR invariably attracts a formal reservation on the perception that a conservation measure affects the maritime jurisdictions of certain Members, particularly those exercising national sovereignty over sub-Antarctic islands in the CCAMLR Indian Ocean sector. This paper examines the background to, and practices associated with, applying CCAMLR Conservation Measure reservations under the Chairman’s Statement.


2021 ◽  
pp. 128048
Author(s):  
Henner Gimpel ◽  
Valerie Graf-Drasch ◽  
Florian Hawlitschek ◽  
Kathrin Neumeier

2021 ◽  
Vol 3 (1) ◽  
pp. 094-098
Author(s):  
E. A. BORODKINA ◽  
◽  
E. E. KUXGAUZEN ◽  
S. V. BELKOVA ◽  
◽  
...  

In this paper, we consider air pollution in the result of the activity of an economic entity. The classification of harmful emissions by aggregate state is given. The sources of negative impact on the atmospheric air, including the volume and mass of the resulting pollutants, are considered. It is proposed to develop a conservation measure by using a bag filter with pulse blowing.


2010 ◽  
Vol 40 (10) ◽  
pp. 2218-2225 ◽  
Author(s):  
Rodrigo Otávio Câmara Monteiro ◽  
Jokastah Wanzuu Kalungu ◽  
Rubens Duarte Coelho

This paper reviews various irrigation technologies in both South Africa and Kenya that enable improvements in their socio-economic conditions. The two countries are located in semi-arid areas that experience extreme fluctuations in the availability of rain water for plant growth. Population growth exceeds the ability to produce food in numerous countries around the world and the two countries are not an exception. This experiment examined the constraints that farmers face and the role of government and nongovernmental organization in the uptake of modern technologies for irrigation. Detailed mechanisms and options to secure sustainable irrigation which are economically viable are considered. Despite the higher production of cereals and grains, fruits, and flowers also thrive in the two countries. Total irrigated area, crops grown and irrigation systems used in the two countries are discussed.


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