scholarly journals Smart Farming using Temperature Sensor, Moisture Sensor, Flow Sensor and Ultrasonic Sensor Leading to Water Conservation

2019 ◽  
Vol 8 (3) ◽  
pp. 4426-4431
Keyword(s):  
Fresh Water ◽  
Water Conservation ◽  
Human Activities ◽  
Threshold Value ◽  
Moisture Sensor ◽  
Ice Caps ◽  
The North ◽  
Smart Farming ◽  
Living Organisms ◽  
Physical Elements

For the entire living organisms in this world water is the crucial element for survival. Without water there is no life present, which makes it very difficult to craft the art of survival. As the fresh water resources are very limited in numbers we have to use this usable form of water in a very artistic way so that the future may not get more worsen. Out of 100 %, oceans contribute in almost 97 % of salty water which can be rarely used for any of the daily activities. Only 3 % of water is in the fresh format and can be utilized by all of the living creatures today for their own survival. Nearly 70 % of the Earths land is covered by water and out of this only 3 % of water is available in the usable form and rest of the water is either saline or present in the oceans. Out of the 3 % of the fresh water available on the Earths crust today, only 1% of the water is easily available and accessible to all the living beings as rest of the fresh water is trapped under the North and South Poles – Ice caps, Glaciers and Icebergs. The day our planet Earth was born, it had a amount of fresh water, the same amount of fresh water is available now at this present time, but this available amount of water was quite adequate in the earlier times as the population was under control and also the human activities were under control. The same amount of fresh water today is in crisis as the population has exploded with several other human activities in it. The proposed System has the ability to conserve and to limit the use of water in an adequate and proper manner without wasting it. The use of several Sensors onto the fields will eventually alert the system to start or make ON the water supply if the sensed parameters will fall below the threshold value. The use of WiFi Module will enable us to archive and check the real time physical elements data collected from the field and can directly connected to computers or other USB devices

scholarly journals Natural Disasters: Causes, Consequences and Its Preventive Role in Sustainable Development

2016 ◽  
Vol 3 (3) ◽  
Author(s):  
Rayees Ibrahim Lone ◽  
Dr. S. Subramani
Keyword(s):  
Natural Disasters ◽  
Human Activities ◽  
Large Scale ◽  
Forest Cover ◽  
Social Systems ◽  
Geographical Location ◽  
Well Being ◽  
Ice Caps ◽  
The Earth ◽  
Living Organisms

Disaster is defined as a crisis situation causing wide spread damage which far exceeds our ability to recover. Disaster is a sudden, calamitous event bringing great damage, loss, destruction and devastation to life and property. The damage caused by disaster is immeasurable and varies with the geographical location, climate and the type of the earth surface. Natural disasters are relatively sudden and cause large scale, widespread death, loss of property and disturbance to social systems and life over which people have a little or no control. Thus, any event can be classed as disaster when the magnitude of destruction and damage caused by it is very high. Communities will always face natural hazards, but today’s disasters are often generated by, or at least exacerbated by, human activities. At the most dramatic level, human activities are changing the natural balance of the earth, interfering as never before with the atmosphere, the oceans, the polar ice caps, the forest cover and the natural pillars that make our world a liveable home. But we are also putting ourselves in harm’s way in less visible ways. This paper seeks to determine the natural disasters, causes and consequences and its prevention. Nature is bountiful full of resources used by the living organisms use for their survival and well-being. But nature has its own control systems. Resources used up are replenished excesses are checked, all naturally through the biogeochemical cycles, the food chains and webs and other natural phenomena. Thus equilibrium is maintained in nature. This is called ecological balance and has in recent times been disturbed by human activities.

Spatiotemporal Changes of Riverbed and Surrounding Environment in Yongding River (Beijing section) in the Past 40 Years

2020 ◽  
Vol 64 (4) ◽  
pp. 40407-1-40407-13 ◽  
Author(s):  
Ran Pang ◽  
He Huang ◽  
Tri Dev Acharya
Keyword(s):  
Economic Development ◽  
Water Conservation ◽  
Human Activities ◽  
Urban Areas ◽  
Water Volume ◽  
Cropland Area ◽  
The Past ◽  
Surrounding Environment ◽  
Spatiotemporal Changes ◽  
Yongding River

Abstract Yongding River is one of the five major river systems in Beijing. It is located to the west of Beijing. It has influenced culture along its basin. The river supports both rural and urban areas. Furthermore, it influences economic development, water conservation, and the natural environment. However, during the past few decades, due to the combined effect of increasing population and economic activities, a series of changes have led to problems such as the reduction in water volume and the exposure of the riverbed. In this study, remote sensing images were used to derive land cover maps and compare spatiotemporal changes during the past 40 years. As a result, the following data were found: forest changed least; cropland area increased to a large extent; bareland area was reduced by a maximum of 63%; surface water area in the study area was lower from 1989 to 1999 because of the excessive use of water in human activities, but it increased by 92% from 2010 to 2018 as awareness about protecting the environment arose; there was a small increase in the built-up area, but this was more planned. These results reveal that water conservancy construction, agroforestry activities, and increasing urbanization have a great impact on the surrounding environment of the Yongding River (Beijing section). This study discusses in detail how the current situation can be attributed to of human activities, policies, economic development, and ecological conservation Furthermore, it suggests improvement by strengthening the governance of the riverbed and the riverside. These results and discussion can be a reference and provide decision support for the management of southwest Beijing or similar river basins in peri-urban areas.

scholarly journals Diesel in Antarctica and a Bibliometric Study on Its Indigenous Microorganisms as Remediation Agent

2021 ◽  
Vol 18 (4) ◽  
pp. 1512
Author(s):  
Rasidnie Razin Wong ◽  
Zheng Syuen Lim ◽  
Noor Azmi Shaharuddin ◽  
Azham Zulkharnain ◽  
Claudio Gomez-Fuentes ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Low Temperature ◽  
Bibliometric Analysis ◽  
Human Activities ◽  
Enzymatic Degradation ◽  
Gradual Increase ◽  
Bibliometric Study ◽  
Natural State ◽  
Living Organisms

Diesel acts as a main energy source to complement human activities in Antarctica. However, the increased expedition in Antarctica has threatened the environment as well as its living organisms. While more efforts on the use of renewable energy are being done, most activities in Antarctica still depend heavily on the use of diesel. Diesel contaminants in their natural state are known to be persistent, complex and toxic. The low temperature in Antarctica worsens these issues, making pollutants more significantly toxic to their environment and indigenous organisms. A bibliometric analysis had demonstrated a gradual increase in the number of studies on the microbial hydrocarbon remediation in Antarctica over the year. It was also found that these studies were dominated by those that used bacteria as remediating agents, whereas very little focus was given on fungi and microalgae. This review presents a summary of the collective and past understanding to the current findings of Antarctic microbial enzymatic degradation of hydrocarbons as well as its genotypic adaptation to the extreme low temperature.

Subglacial topography and thickness of ice caps on the Argentine Islands

2019 ◽  
Vol 31 (6) ◽  
pp. 332-344 ◽  
Author(s):  
Jānis Karušs ◽  
Kristaps Lamsters ◽  
Anatolii Chernov ◽  
Māris Krievāns ◽  
Jurijs Ješkins
Keyword(s):  
Land Surface ◽  
Geological Structure ◽  
Aerial Images ◽  
Ice Thickness ◽  
Ice Caps ◽  
The North ◽  
Prevailing Wind Direction ◽  
Aerial Vehicle ◽  
Subglacial Topography ◽  
Ground Penetrating

AbstractThis study presents the first subglacial topography and ice thickness models of the largest ice caps of the Argentine Islands, Wilhelm Archipelago, West Antarctica. During this study, ground-penetrating radar was used to map the thickness and inner structure of the ice caps. Digital surface models of all studied islands were created from aerial images obtained with a small-sized unmanned aerial vehicle and used for the construction of subglacial topography models. Ice caps of the Argentine Islands cover ~50% of the land surface of the islands on average. The maximum thickness of only two islands (Galindez and Skua) exceeds 30 m, while the average thickness of all islands is only ~5 m. The maximum ice thickness reaches 35.3 m on Galindez Island. The ice thickness and glacier distribution are mainly governed by prevailing wind direction from the north. This has created the prominent narrow ice ridges on Uruguay and Irizar islands, which are not supported by topographic obstacles, as well as the elongated shape of other ice caps. The subglacial topography of the ice caps is undulated and mainly dependent on the geological structure and composition of magmatic rocks.

scholarly journals Effects of water and soil conservation works on runoff and sediment variation in the areas with high and coarse sediment yield of the middle Yellow River

2018 ◽  
Vol 38 ◽  
pp. 01033
Author(s):  
Wei Ying Sun ◽  
Pan Zhang ◽  
Li Li ◽  
Jiang Nan Chen
Keyword(s):  
Sediment Yield ◽  
Water Conservation ◽  
Human Activities ◽  
Soil Conservation ◽  
Yellow River ◽  
Soil And Water Conservation ◽  
Contribution Rate ◽  
Rainfall Variation ◽  
Runoff Reduction ◽  
Soil And Water

The areas with high and coarse sediment yield of the middle Yellow River is well known for its severe erosion, high sediment yields. Since 1982 when the 8 key soil and water conservation harnessing regions has been built, the ecological environment has been gradually improved and the amount of sediment and runoff entering the Yellow River has been reduced continuously. Some researchers considered that it was owing to the water and soil conservation works (WSCW), while others believed that it was caused by the rainfall variation, but this has not been quantified for the effect respectively. This paper deals with the effects of WSCW on runoff and sediment variation. The study has been carried out in the Sanchuanhe River watershed, where was listed as one of the 8 key soil and water conservation harnessing regions. The results show that the contribution rate of human activities was 80.2% after 1st harnessing stage (1970-1979), 43.0% after 2nd harnessing stage (1980-1989), in 3rd harnessing stage (1990-1996) it reached 98.4%, and was 44.8% after 4th harnessing stage (1997-2006). With regard to the influence on runoff reduction in the watershed, the contribution rate of human activities was 62.5% compared with the natural factors after 1st harnessing stage (1970-1979), 28.4% after 2nd harnessing stage (1980-1989), in 3rd harnessing stage (1990-1996) it reached 69.6%, and was 37.0% after 4th harnessing stage (1997-2006). The results revealed that human activities exerted the largest effects on the sediment reduction and explained 66.6% of the variation in the specific sediment yield. This study suggests that a combination of human activities and rainfall variation effectively reduces runoff and sediment delivery of the Loess Plateau. Generally The runoff reduction and contribution of rainfall variation to runoff reduction in this area were as large as human activities. After many years' harnessing the great benefit have been obtained in water and soil loss control in this watershed.

scholarly journals Evidence for Freshwater Residualism in Coho Salmon, Oncorhynchus kisutch, From a Watershed on the North Coast of British Columbia

2017 ◽  
Vol 130 (4) ◽  
pp. 336 ◽  
Author(s):  
Eric A Parkinson ◽  
Chris J Perrin ◽  
Daniel Ramos-Espinoza ◽  
Eric B Taylor
Keyword(s):  
British Columbia ◽  
Fresh Water ◽  
Coho Salmon ◽  
Pacific Salmon ◽  
Oncorhynchus Kisutch ◽  
Water Levels ◽  
North Coast ◽  
The North ◽  
Seaward Migration ◽  
Mature Fish

The Coho Salmon, Oncorhynchus kisutch, is one of seven species of Pacific salmon and trout native to northeastern Pacific Ocean watersheds. The species is typically anadromous; adults reproduce in fresh water where juveniles reside for 1–2 years before seaward migration after which the majority of growth occurs in the ocean before maturation at 2–4 years old when adults return to fresh water to spawn. Here, we report maturation of Coho Salmon in two freshwater lakes on the north coast of British Columbia apparently without their being to sea. A total of 15 mature fish (11 males and four females) were collected in two lakes across two years. The mature fish were all at least 29 cm in total length and ranged in age from three to five years old. The occurrence of Coho Salmon that have matured in fresh water without first going to sea is exceedingly rare in their natural range, especially for females. Such mature Coho Salmon may represent residual and distinct breeding populations from those in adjacent streams. Alternatively, they may result from the ephemeral restriction in the opportunity to migrate seaward owing to low water levels in the spring when Coho Salmon typically migrate to sea after 1–2 years in fresh water. Regardless of their origin, the ability to mature in fresh water without seaward migration may represent important adaptive life history plasticity in response to variable environments.

scholarly journals Contribution to a Knowledge of the North American Fresh-water Ostracoda Included in the Families Cytheridae and Cyprididae

1897 ◽  
Vol 4 (1-15) ◽  
pp. 415-482 ◽  
Author(s):  
Richard Sharpe
Keyword(s):  
Natural History ◽  
Fresh Water ◽  
North American ◽  
Illinois River ◽  
University Of Illinois ◽  
Master Of Science ◽  
Biological Station ◽  
The North ◽  
The University

The present paper has been prepared in the course of work at the University of Illinois for the degree of master of science in zoology. In addition to extensive collections of Entomostraca made at the Biological Station of the University of Illinois, situated at Havana, on the Illinois River, I have been able, through the kindness of Dr. S. A. Forbes, to examine all the accumulations in this group made by the Illinois State Laboratoryof Natural History during the last twenty years,and covering a territory little less than continental.

scholarly journals Estuaries, Human Beings, and the Future

2021 ◽  
Vol 9 ◽  
Author(s):  
Steven D. Culberson
Keyword(s):  
Fresh Water ◽  
Human Activities ◽  
Human Beings ◽  
Streams And Rivers ◽  
Salty Water ◽  
The Earth ◽  
The Future

Estuaries are places on the earth where rivers meet oceans. When rain and snowmelt drain off the land, the fresh water collects in streams and rivers and eventually makes its way to the ocean. At the same time, the ocean has tides that push salty water upstream into the rivers. This place, where rivers and oceans mix, is called an estuary. Estuaries contain many kinds of habitats that are home to plants and animals. Many people work and live in estuaries. In this article, I describe what makes estuaries interesting and important to plants, animals, and people. I also explain how these important areas are under threat from certain human activities.

scholarly journals Smart Irrigation System Using GPRS and Moisture Sensor

2020 ◽  
pp. 195-200
Keyword(s):  
Irrigation System ◽  
Threshold Value ◽  
Manual Control ◽  
Moisture Sensor ◽  
Turn On ◽  
Continuous Parameter ◽  
Water Drip ◽  
System User ◽  
Irrigation Control ◽  
User Friendly

With the advent of globalization, urbanization and modernization, water degradation has become an major concern today. Farming in India is still done as per traditional method that requires plenty of usage of water. Drip system has resolved this issue to some extent. But this system has suffered with overhead of continuous parameter checking and manual control. This paper focuses on designing of a smart drip irrigation system that comprises of sensing the moisture of soil which automatically controls switching of pump and valve with low consumption of available power. Automatic sensing of parameters remotely controls the drip valves of system. User friendly interface allows irrigation control with ease and less efforts. The moisture sensor will continuously sense the moisture content in the soil. The temperature sensor continuously monitors the temperature and if it is above threshold value then spraying system will turn on which will reduce crop temperature.

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