FOREST ECOLOGY
FOREST SUCCESSION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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water
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gases
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nutrients
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seeds
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Detailed explanation-1: -Moreover, nutrients released from the burned material, which includes dead plants and animals, return more quickly into the soil than if they had slowly decayed over time. In this way, fire increases soil fertility-a benefit that has been exploited by farmers for centuries.
Detailed explanation-2: -Soil burning decreased soil water retention capacity both at the field capacity and permanent wilting point which finally reduced soil available water holding capacity. The increase in sand and decrease in clay content after fire decrease soil available water holding capacity.
Detailed explanation-3: -If fires occur too frequently these species may not reach maturity to produce seed and will not persist. Alternatively, infrequent fires can impact negatively on plants that rely on fire to regenerate. If fire is too infrequent, these species can grow old and die and their seeds rot in the soil before germinating.
Detailed explanation-4: -Organic matter decomposition. Precipitation. Biological nitrogen fixation. Inorganic fertilizer application. Weathering of soil rocks and minerals. 07-Sept-2016