FOREST ECOLOGY
ECOSYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Salt causes plants to lose water.
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Salt makes a plant more susceptible to disease.
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Salt makes it impossible to perform photosynthesis.
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Salt prevents a plant from reproducing.
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Detailed explanation-1: -Salinity composes stress by damaging ionic and osmotic balances in plants. Osmotic stress caused by increasing the amount of salt in soil, decreases the amount of water that plant use and as a result physiological drought occurs.
Detailed explanation-2: -Root exposure to high sodium concentrations causes wilted foliage and stunted plant growth. This is because excessive salts in soil impede plants’ uptake of water and cause plant tissues to become dry and discolored. If salt is high, but not extremely high, plants may grow slowly but not show other obvious symptoms.
Detailed explanation-3: -Salinity becomes a problem when enough salts accumulate in the root zone to negatively affect plant growth. Excess salts in the root zone hinder plant roots from withdrawing water from surrounding soil. This lowers the amount of water available to the plant, regardless of the amount of water actually in the root zone.
Detailed explanation-4: -Saltwater negatively affects plants by dehydrating them. Plants obtain water via their root system through osmosis. This osmosis is facilitated by cells around the hairs of the plant’s roots that water passes through very easily.