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Nutrient Pollution
Nutrient pollution is a form of water pollution caused by too many Nutrient, nutrients entering the water. It is a primary cause of eutrophication of surface waters (lakes, rivers and Coast, coastal waters), in which excess nutrients, usually nitrogen or phosphorus, stimulate algae, algal growth. Sources of nutrient pollution include surface runoff from farms, waste from septic tanks and feedlots, and air pollution, emissions from burning fuels. Raw sewage, which is rich in nutrients, also contributes to the issue when dumped in water bodies. Excess Reactive nitrogen, nitrogen causes environmental problems such as harmful algal blooms, Hypoxia (environmental), hypoxia, acid rain, nitrogen saturation in forests, and climate change. Agricultural production relies heavily on the use of natural and synthetic Fertilizer, fertilizers, which often contain high levels of nitrogen, phosphorus and potassium. When nitrogen and phosphorus are not fully used by the growing plants, they can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Rain
Acid rain is rain or any other form of Precipitation (meteorology), precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH). Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average. The more acidic the acid rain is, the lower its pH is. Acid rain can have harmful effects on plants, aquatic animals, and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the Properties of water, water molecules in the atmosphere to produce acids. Acid rain has been shown to have adverse impacts on forests, Fresh water, freshwaters, soils, microbes, insects and aquatic life-forms. In ecosystems, persistent acid rain reduces tree bark durability, leaving flora more susceptible to environmental stressors such as drought, heat/cold and pest infestation. Acid rain is also capable of detriment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamb And Mutton
Lamb and mutton, collectively sheep meat (or sheepmeat) is one of the most common meats around the world, taken from the domestic sheep, ''Ovis aries'', and generally divided into lamb, from sheep in their first year, hogget, from sheep in their second, and mutton, from older sheep. Generally, "hogget" and "sheep meat" aren't used by consumers outside Norway, New Zealand, South Africa, Scotland, and Australia. Hogget has become more common in England, particularly in the North (Lancashire and Yorkshire) often in association with rare breed and organic farming. In South Asian and Caribbean cuisine, "mutton" often means goat meat.''Oxford English Dictionary'', 3rd edition, June 2003Italian, make similar or even more detailed distinctions among sheep meats by age and sometimes by sex and diet—for example, ''lechazo'' in Spanish refers to meat from milk-fed (unweaned) lambs. Classifications and nomenclature The definitions for lamb, hogget and mutton vary considerably between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poultry
Poultry () are domesticated birds kept by humans for the purpose of harvesting animal products such as meat, Eggs as food, eggs or feathers. The practice of animal husbandry, raising poultry is known as poultry farming. These birds are most typically members of the superorder Galloanserae (fowl), especially the order Galliformes (which includes chickens, quails, and domestic turkey, turkeys). The term also includes waterfowls of the family Anatidae (ducks and geese) but does not include wild birds hunted for food known as game (hunting), game or wild meat, quarry. Recent genomic studies involving the four extant junglefowl species reveals that the domestication of chicken, the most populous poultry species, occurred around 8,000 years ago in Southeast Asia. This was previously believed to have occurred around 5,400 years ago, also in Southeast Asia. The process may have originally occurred as a result of people hatching and rearing young birds from eggs collected from the wild, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg As Food
Humans and other hominids have consumed eggs for millions of years. The most widely consumed eggs are those of fowl, especially chickens. People in Southeast Asia began harvesting chicken eggs for food by 1500 BCE. Eggs of other birds, such as ducks and ostriches, are eaten regularly but much less commonly than those of chickens. People may also eat the eggs of reptiles, amphibians, and fish. Fish eggs consumed as food are known as roe or caviar. Hens and other egg-laying creatures are raised throughout the world, and mass production of chicken eggs is a global industry. In 2009, an estimated 62.1 million metric tons of eggs were produced worldwide from a total laying flock of approximately 6.4 billion hens. There are issues of regional variation in demand and expectation, as well as current debates concerning methods of mass production. In 2012, the European Union banned battery husbandry of chickens. History Bird eggs have been valuable foodstuffs since prehistor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faboideae
The Faboideae are a subfamily of the flowering plant family Fabaceae or Leguminosae. An acceptable alternative name for the subfamily is Papilionoideae, or Papilionaceae when this group of plants is treated as a family. This subfamily is widely distributed, and members are adapted to a wide variety of environments. Faboideae may be trees, shrubs, or herbaceous plants. Members include the pea, the sweet pea, the laburnum, and other legumes. The pea-shaped flowers are characteristic of the Faboideae subfamily and root nodulation is very common. Genera The type genus, ''Faba'', is a synonym of ''Vicia'', and is listed here as ''Vicia''. *'' Abrus'' *'' Acmispon'' *'' Acosmium'' *'' Adenocarpus'' *'' Adenodolichos'' *'' Adesmia'' *'' Aenictophyton'' *'' Aeschynomene'' *'' Afgekia'' *'' Aganope'' *'' Airyantha'' *'' Aldina'' *'' Alexa'' *'' Alhagi'' *'' Alistilus'' *'' Almaleea'' *'' Alysicarpus'' *'' Amburana'' *'' Amicia'' *'' Ammodendron'' *'' Ammopiptanthus'' *'' Ammot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peas
Pea (''pisum'' in Latin) is a pulse or fodder crop, but the word often refers to the seed or sometimes the pod of this flowering plant species. Peas are eaten as a vegetable. Carl Linnaeus gave the species the scientific name ''Pisum sativum'' in 1753 (meaning cultivated pea). Some sources now treat it as ''Lathyrus oleraceus''; however the need and justification for the change is disputed. Each pod contains several seeds (peas), which can have green or yellow cotyledons when mature. Botanically, pea pods are fruit, since they contain seeds and develop from the ovary of a "pea" flower. The name is also used to describe other edible seeds from the Fabaceae such as the pigeon pea (''Cajanus cajan''), the cowpea (''Vigna unguiculata''), the seeds from several species of '' Lathyrus'' and is used as a compound form - for instance, in Sturt's desert pea. Peas are annual plants, with a life cycle of one year. They are a cool-season crop grown in many parts of the world; planti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tofu
or bean curd is a food prepared by Coagulation (milk), coagulating soy milk and then pressing the resulting curds into solid white blocks of varying softness: ''silken'', ''soft'', ''firm'', and ''extra (or super) firm''. It originated in China and has been consumed in the country for over 2,000 years. Tofu is a traditional component of many East Asian cuisine, East Asian and Southeast Asian cuisine, Southeast Asian cuisines; in modern Western cooking, it is often used as a Meat alternative, meat substitute. Nutritionally, tofu is low in calories, while containing a relatively large amount of protein. It is a high and reliable source of iron, and can have a high calcium or magnesium content depending on the Flocculation, coagulants (e.g. calcium chloride, calcium sulphate, magnesium sulphate) used in manufacturing. Cultivation of tofu, as a protein-rich food source, has one of the lowest needs for land use (1.3 m²/ 1000 kcal) and emits some of the lowest amount of greenhouse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pork
Pork is the culinary name for the meat of the pig (''Sus domesticus''). It is the most commonly consumed meat worldwide, with evidence of pig animal husbandry, husbandry dating back to 8000–9000 BCE. Pork is eaten both freshly cooked and preserved; Curing (food preservation), curing extends the shelf life of pork products. Ham, Gammon (meat), gammon, bacon, and sausage, pork sausage are examples of preserved pork. Charcuterie is the branch of cooking devoted to prepared meat products, many from pork. Pork is the most popular meat in the Western world, particularly in Central Europe. It is also very popular in East Asia, East and Southeast Asia (Mainland Southeast Asia, Philippines, Singapore, and East Timor). The meat is highly prized in Asian cuisines, especially in China (including Hong Kong) and Northeast India, for its fat content and texture. Some religions and cultures Religious restrictions on the consumption of pork, prohibit pork consumption, notably Islami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nutrient Sources Gulf-Mex & Chesbay - EPA 2010
A nutrient is a substance used by an organism to survive, grow and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi and protists. Nutrients can be incorporated into cells for metabolic purposes or excreted by cells to create non-cellular structures such as hair, scales, feathers, or exoskeletons. Some nutrients can be metabolically converted into smaller molecules in the process of releasing energy such as for carbohydrates, lipids, proteins and fermentation products (ethanol or vinegar) leading to end-products of water and carbon dioxide. All organisms require water. Essential nutrients for animals are the energy sources, some of the amino acids that are combined to create proteins, a subset of fatty acids, vitamins and certain minerals. Plants require more diverse minerals absorbed through roots, plus carbon dioxide and oxygen absorbed through leaves. Fungi live on dead or living organic matter and meet nutrient needs from their host. D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polluter Pays Principle
In environmental law, the polluter pays principle is enacted to make the Party (law), party responsible for producing pollution responsible for paying for the damage done to the natural environment. This principle has also been used to put the costs of pollution prevention on the polluter. It is regarded as a regional custom because of the strong support it has received in most Organisation for Economic Co-operation and Development (OECD) and European Union countries, and has a strong scientific basis in economics. It is a fundamental principle in US environmental law. Historical basis According to the French historian of the environment Jean-Baptiste Fressoz, financial compensation (not named "polluter pays principle" at that time) is already the regulation principle of Industrial pollution, pollution favoured by industrials in the nineteenth century. Nic Ulmi"Aux origines de la crise écologique"[The origins of the ecological crisis], ''Le temps'', 18 October 2016 (page visit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constructed Wetland
A constructed wetland is an artificial wetland to treat sewage, greywater, stormwater runoff or Industrial wastewater treatment, industrial wastewater. It may also be designed for land reclamation after mining, or as a Flood mitigation, mitigation step for natural areas lost to land development. Constructed wetlands are engineered systems that use the natural functions of vegetation, soil, and organisms to provide secondary treatment to wastewater. The design of the constructed wetland has to be adjusted according to the type of wastewater to be treated. Constructed wetlands have been used in both centralized and decentralized wastewater systems. Primary treatment is recommended when there is a large amount of suspended solids or soluble organic matter (measured as biochemical oxygen demand and chemical oxygen demand). Similar to natural wetlands, constructed wetlands also act as a biofilter and/or can remove a range of pollutants (such as organic matter, Nutrient pollution, nutri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
