DENDROLOGY

Detailed explanation-1: -Secondary succession is the ecological succession that occurs after the initial succession has been disrupted and some plants and animals still exist. It is usually faster than primary succession as soil is already present, and seeds, roots, and the underground vegetative organs of plants may still survive in the soil.

Detailed explanation-2: -Secondary succession begins in areas where natural biotic communities have been destroyed such as in abandoned farm lands, burned or cut forests, lands that have been flooded.

Detailed explanation-3: -Secondary succession occurs in areas where a biological community has already existed but some or all of that community has been removed by small-scale disturbances that did not eliminate all life and nutrients from the environment.

Detailed explanation-4: -Some examples of secondary succession include the re-establishment of a destroyed previously-existing community of flora and fauna. Such secondary succession can happen after: After forest fire. After flood.