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215 Sustainable land management practice... 10310KB Dec 10
215 Sustainable land management practice... 10310KB Dec 10

... – If we ate grain directly, we would obtain twenty-one times more calories and eight times more protein than we get eating the beef. ...
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Chapter 8 - Parkway C-2
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EQ: What are some ways that humans can conserve natural

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Talking points for classroom discussion

... natural landscapes, they tend towards monocropping, and they have been so altered that most traces of their original natural landscapes features are gone. Natural landscapes often (but not always!) have more diverse ecosystems which are an important component of a healthy environment. If students ma ...
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... • What is the difference between a food chain and a food web? • Be able to identify the following parts of a food chain/food web: o Producer o Secondary Consumer o Consumer o Tertiary Consumer o Carnivore o Decomposer o Herbivore • Biomes o Be able to differentiate between factors for each of the fo ...
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Points of Interest: Marine Park Self Guided Kayak Tour

... the tides. They serve as critical habitat for fish, mussels and shorebirds and help to clean the water and reduce flooding. Over 80% of New York City’s original salt marshes were destroyed by development of the shoreline. • Upland Buffer Uplands consist of coastal forests, meadows, grasses and wildf ...
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Soil salinity control



Soil salinity control relates to controlling the problem of soil salinity and reclaiming salinized agricultural land.The aim of soil salinity control is to prevent soil degradation by salination and reclaim already salty (saline) soils. Soil reclamation is also called soil improvement, rehabilitation, remediation, recuperation, or amelioration.The primary man-made cause of salinization is irrigation. River water or groundwater used in irrigation contains salts, which remain behind in the soil after the water has evaporated.The primary method of controlling soil salinity is to permit 10-20% of the irrigation water to leach the soil, be drained and discharged through an appropriate drainage system. The salt concentration of the drainage water is normally 5 to 10 times higher than that of the irrigation water, thus salt export matches salt import and it will not accumulate.
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