Home
Class 12
BIOLOGY
In the North East region of India, durin...

In the North East region of India, during the process of jhum cultivation, forests are cleared by burning and left for regrowth after a year of cultivation. How would you explain the regrowth of forest in ecological term?

Text Solution

Verified by Experts

Forests that are cleared by burning and left for regrowth will show secondary succession. Since. soil is already present, the buried seeds oen to germinate. Due to wind dispersal and some other natural forces, new seeds will be brought into the area and new species will colonise the forest again.
Promotional Banner

Topper's Solved these Questions

  • BIOTECHNOLOGY PRINCIPLES AND PROCESS

    NCERT EXEMPLAR|Exercise Biotechnology Principles And Process|44 Videos
  • ENVIRONMENTAL ISSUES

    NCERT EXEMPLAR|Exercise Environmental Issues|55 Videos
NCERT EXEMPLAR-ECOSYSTEM-Ecosystem
  1. Justify the pitcher plant as a producer.

    Text Solution

    |

  2. Name any two organisms which can occupy more than one trophic level in...

    Text Solution

    |

  3. In the North East region of India, during the process of jhum cultivat...

    Text Solution

    |

  4. Climax stage is achieved quickly in secondary succession as compared t...

    Text Solution

    |

  5. Among bryophytes, lichens and fern which one is a pioneer species in a...

    Text Solution

    |

  6. What is the ultimate source of energy for the ecosystems?

    Text Solution

    |

  7. Is the common edible mushroom an autotroph or a heterotroph?

    Text Solution

    |

  8. Why are oceans least productive?

    Text Solution

    |

  9. Why is the rate of assimilation of energy at the herbivore level calle...

    Text Solution

    |

  10. Why are nutrient cycles in nature called biogeochemical cycles?

    Text Solution

    |

  11. Give any two examples of xerarch succession.

    Text Solution

    |

  12. Define self sustainability

    Text Solution

    |

  13. Given below is a figure of an ecosystem. Answer the following question...

    Text Solution

    |

  14. What is common to earthworm, mushroom, soil mites and dung beetlein an...

    Text Solution

    |

  15. Orgnisms at a higher trophic level have less energy available. Comment...

    Text Solution

    |

  16. The number of trophic levels in an ecosystem are limited. Comment.

    Text Solution

    |

  17. Is an aquarium a complete ecosystem?

    Text Solution

    |

  18. What could be the reason for the faster rate of decomposition in the t...

    Text Solution

    |

  19. Human activities interfere with carbon cycle. List any two such activi...

    Text Solution

    |

  20. Flow of energy through various trophic levels in an ecosystem is unidi...

    Text Solution

    |