Droughts are a very serious problem that can affect us environmentally, agriculturally, and economically. Droughts happen when the moisture in the soil is not enough to meet the demands of evapotranspiration, which is the process of moisture transferring from the Earth to the air by the process of evaporation of water and transpiration by plants. Droughts are usually associated with semiarid climates, but can occur anywhere that normally has an acceptable amount of rainfall and moisture levels, and they are usually associated with warm to hot dry winds, high temperatures, and low relative humidity. The biggest hazards of droughts are famine, communicable disease, and death. Some of the main factors that cause droughts are insufficient rainfall, temperature and climate changes, and human factors. Factors that affect vulnerability include fragile physical environment, fragile economy, and lack of preparedness.
A drought is defined as “a long period of abnormally low rainfall, especially one that adversely affects growing or living conditions” (“drought”). Droughts happen when an area does not receive anywhere near its average precipitation. They cause water and food shortages that have negative effects on the population. Droughts can last for a few months or even years and are known as the ‘creeping’ hazard because they develop slowly and have a prolonged existence. Droughts are very difficult to predict, but researchers are working on advanced warning systems and trying to find a way to predict the lifespan of each drought. The three main hazards of a drought are communicable diseases, famine, and death. Communicable diseases are caused by the lack of water supply, sanitation, malnutrition, displacement, and the hig...
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...isconsin Board of Regents, 1986. Print.
Seager, Richard and Alexandrina Tzanova. “Drought in the Southeastern United States.” Drought in the Southeastern United States. Lamont-Doherty Earth Observatory of Columbia University, July 2008. Web. 2 April 2014. .
Smith, Keith and David N. Petley. Environmental Hazards: Assessing Risk and Reducing Disaster. London: Routledge, 2004. Print.
Svoboda, Mark. Drought Monitoring and Early Warning Information System (DEWIS): Tools and Techniques. Lincoln: National Drought Mitigation Center - University of Nebraska, 22-24 May 2012. PDF.
West, Larry. “What Are the Effects of Drought?” About.com Environmental Issues. N.p., 2014. Web. 2 April 2014. .
Spross, Jeff. "The Impact Of Climate Change On The Midwest: More Heat, More Droughts, More Floods, Fewer Crops." ThinkProgress RSS. N.p., n.d. Web. 22 May 2014. http://thinkprogress.org/climate/2014/05/07/3434933/national-climate-assessment-midwest/
The drought along with the dust storms as stated already made it impossible to plant crops, it also made it very difficult to provide food for the farmers and their families. If you could not plant anything, you did not have food for animals and you did not have food for families or children that needed it desperately. There was a sudden urgency of concern once farmers could not feed their family and members of those families started to starve.
On the heart (center) of California is a flat area with miles and miles of farms and up to 230 different crops. The central valley agriculture is essential to the United States; it not only delivers almost half of the produce but also helps the economy by also giving more job opportunities (California Department of food and agriculture, 2014). Many families depend on the central valley agriculture to survive economically in the United States. It is a well-known fact that rain and snows in the Sierra Nevada Mountains are a very important element in the central valley. No rain in the central valley can cause many devastating issues to occur quickly. Recently in the year of 2013 California received less rainfall than years before. The small amount of water the central valley is receiving is harming not only to the land but humans and animals as well. It’s destroying the habitats of animals with forest fires caused from the dry spells occurring. The central valley is going through a drought, so much that around this time of year the central valley usually accumulates enough rain for the necessities in the valley, agriculture for example. This year, however, has been different, the central valley hasn’t received enough water and this has caused a drought in the valley. Water is an important element in this world for not only human life, but for the environment in general, a shortage of water supply can bring issues to the environment and those living in it. The central valley holds the largest percent of class one soil, not only that, the valley grows a third of all the produce being grown in the United States, that’s more than 230 crops that are being grown in the central valley. However, this drought isn’t only affecting the resident...
Vickers, A. (2002). Conserving our finite water supplies in an era of chronic drought: Practical steps. Electronic Green Journal Issue 17.
The weather in this novel controls their crops and the river flow; which controls their food and water supply. They depend on adequate rainfall to help their crops to grow and for the river to be full. They also depend on the sun to warm things up and make the crops grow. However, if there is too much rain or too much sun it can cause many problems, such as a drought or a flood. These things are significant in this novel, because t...
The another devastating abiotic stress which is considered to be highly responsible worldwide for decreasing yield and quality of crop productivity is drought (Lambers et al. 2008 ; Moghadam et al .,2011; Mohsen Pourgholam et al.,2013 ; M. Farooq et al., 2012; Abolhasani and Saeidi, 2004 ; Monjezi et al., 2013).It harms plant growth and development and reduces crop growth rate and also affects biomass accumulation. Generally, in crop plants drought severely affects the cell division and expansion, elongation of root, leaf size, proliferation of root and inhibition of shoot growth (Sharp & Davies 1989; Spollen et al.,1993;Yamaguchi et al.,2010). Furthermore ,it also badly hampers all kinds of plant functions and physiological and biochemical traits such as mineral elements, carbohydrates, free radicals, ions, hormones, lipids, and nucleic acids (HongBo et al., 2005; Yasar et al., ; Moghadam et al .,2011,Mohsen Pourgholam et al,2013) .The transportation of nutrients from the roots to the stem severely get affected by drought as the rate of transpiration is reduced and damage of active transport and membrane permeability take place (Viets, 1972; Alam, 1999; Yasar et al ). Simultaneously, due to decrease in soil moisture, problem occurs with the low distribution of absorbed nutrients by the plant roots in the soil (Alam, 1999; Yasar et al ). More importantly, drought leads to rise in generation of reactive oxygen species (ROS) due to energy accumulation in stress condition of plants (Smirnoff 1993; Asada 2006; Waraich et al.,2011).Drought diminishes photosynthetic carbon fixation primarily through restraining the entrance of CO2 into the leaf or by reducing metabolism (Smirnoff 1993; Loggini et al., 1999; Ap...
Extreme weather events, such as drought, are tremendously important when considering stressors to water resources. History of drought has been documented in Paleoclimate studies using long lived tree species indigenous to Texas. Tree-ring proxies are especially useful when reconstructing histories of climate change across a large region like Texas, since many can be sampled from different areas. Annual tree ring data can give a precise year-to-year temperature and precipitation records. Tree ring data has shown droughts lasting a decade or more staggered throughout the state happening randomly since the 1600’s. (why this is important to water supply) [Brenner]
Wright, C. Y., & Diab, R. (2011). Air pollution and vulnerability: Solving the puzzle of
Zara Beadle METR 113 16 December 2015 Final paper California Drought The California drought has been extremely harmful to the states’ air quality. Since 2012, California has seen the worst drought conditions in 1,200 years and it is severely affecting air quality (California’s drought, 2015). As of 2015, the cities of Hanford, Merced, Modesto, Fresno, Yuba City, Lancaster-Palmdale, Chico, Sacramento, and Bakersfield have experienced exceptional drought coverage (Pestano, 2015).
...ld. Globally, more intense hurricanes and downpours could cause billions of dollars in damage to property and infrastructure. Declining crop yields due to prolonged drought and high temperatures, especially in Africa, could put hundreds of thousands of people at risk for starvation. The Ski resorts located in the lower altitudes of the Swiss Alps have difficulty obtaining bank loans because of declining snow.
Drought is no stranger to the state of California especially is the southern part of the state. California has been a technological creation since the first American settlers starting migrating from the east. It naturally has a semi-arid climate. It was inevitable that prolonged severe drought would occur in such a climatic region from time to time. California has depended on redirecting natural waterways and investing an incredible amount of money into pumping water to Southern California. This is not only a California debacle but a global one as well. According to the World health Organization, 1 billion people do not have access to clean, piped water. A world Resources Institute analysis adds that 2.3 billion people, 41% of Earth’s population, live in water-stressed areas, a number expected to climb to 3.5 billion by 2025. To make matters worse, global population is rising by 80 million a year, and with it the demand for new sources of fresh water (7 pg. 1). Water affects everyone and everything including the economies of both developing and industrialized nations. “The current situation has heightened the need for reliable sources of water, especially in these type of times when there is rationing across the state, “said Paul Shoenberger, assistant general manager with the West Basin Municipal Water District in Carson and chair of a desalination subcommittee for the Association of California Water Agencies. “ Desalination is more available and isn’t linked to rain or snow pack.” The only methods to increase water supply beyond what is available from the hydrological cycle are desalination and water reuse (8).
... middle of paper ... ... Retrieved May 22, 2014 from http://environment.nationalgeographic.com/environment/global-warming/toxic-waste-overview/ Onishi, N. & Wollan, M. (2014, January 17). Severe drought grows worse in California. The New York Times.
As many of you may know, 2013 has set the record for the driest year in California history and this drought has continued into 2014.
(2009). The 'Standard' of the 'Standard'. Drought - a fact sheet. Retrieved from: http://www.ifad.org/lrkm/factsheet/cc.pdf The Intergovernmental Panel on Climate Change, IPCC, (2007).
Global warming is one of the main causes, which leads to the lack of water and drought. A drought-like condition exists in most of India’s part. Government of India states that 68% of the country is disposed to the drought, which (consequences are) leads to massive migration of people to more favorable places, famine, conflicts among inhabitants. India is known in the world as one of the biggest producers of water-intensive crops such as rice, sugarcane and wheat. According to a survey done by Grail Research, approximately 82% of total water is used for agricultural consumption and 90% of it is employed for irrigation of rice, wheat and sugarcane (Grail Research, LLC, 2009). There are several solutions which could lead to the decr...