Aerial seeding

Aerial seeding

Aravallis these days is severely inundated due to heavy mining and has undergone rapid development and construction activities. The Haryana Forest Department has started aerial seeding across the state on a pilot basis with special focus on the Aravalli region.

What is it?

  • Aerial seeding is a technique of plantation wherein seed balls – seeds covered with a mixture of clay, compost, char and other components.
  • They are sprayed on the ground using aerial devices, including planes, helicopters or drones.
  • Seeds balls or seed pellets are dispersed in a targeted area by the low-flying drones, falling to the ground with the help of the coating of clay, compost, char and other material.
  • Coating provides the required weight for seeds to drop on a predetermined location rather than disperse in the wind.
  • These pellets will then sprout when there is enough rain, with the nutrients present within them helping in the initial growth.

Advantages:

  • Areas that are inaccessible, have steep slopes, are fragmented or disconnected with no forest routes, making conventional plantation difficult, can be targeted with aerial seeding.
  • Furthermore, the process of the seed’s germination and growth is such that it requires no attention after it is dispersed – the reason why seed pellets are known as the “fire and forget” way of the plantation.
  • They eliminate the need for ploughing and digging holes in the soil and the seeds do not need to be planted, since they are already surrounded by soil, nutrients, and microorganisms.
  • The clay shell of these pellets along with the other items in the mixture also protects them from birds, ants and rats.
  • The species selected have to be native to the area and hardy, with seeds that are of an appropriate size for preparing seedballs and have to have a higher survival percentage.
  • It is critical that the timing of the seeding be correct in order for the plantation to be successful.

Is this an alternative to conventional methods?

  • Seeding should be done only on a pilot basis to evaluate the effectiveness of the technology and the dispersal mechanism.
  • Conventional methods of afforestation cannot be replaced but supplemented with areal seeding.
  • In this case, the technique will allow plantation in sections of the Aravallis that are either difficult to access or inaccessible altogether.

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