1. WASTE LAND DEVELOPMENT
โข Roll No. 26
โข Name = Nipun Mahesh Jain
โข Std = F.Y. B Pharmacy
โข Subject = Environmental Science
โข Guided By = U.N Dungarwal Mam
2. WASTELAND
โข What is waste land ?
โข Defined as land which is degraded and is presently lying
unutilized.
3. Wasteland Map Of India 2015
โข From the total land
area of 328 million
hectare about 162
million hectare i.e.
51% is agricultural
land,4% is pasture
land,21% is forest
land and 24% is
wasteland
4. WASTELANDS CAN BE CLASSIFIED INTO THREE FORMS :
โขEasily reclaimable.
โขReclaimable with some difficulty.
โขReclaimable with extreme difficulty.
5. Easily Reclaimable
โข Easily reclaimable wastelands can be used for
agricultural purposes.
โข Wastelands can be reclaimed for agriculture by
reducing the salt content which can be done by
leaching etc.
โข Gypsum, urea, potash and compost are added
before planting crops in such areas.
6. Reclaimable With Some Difficulty
โข These wastelands can be utilized for agro forestry.
Agro forestry involves putting land to multiple uses.
โข Its main purpose is to have trees and crops inter-
and/or under planted to form an integrated system of
biological production within a certain area.
โข Thus, agro forestry implies integration of trees with
agricultural crops or livestock management
simultaneously.
7. Reclaimed With Extreme Difficulty
โข Wasteland that are reclaimed with extreme difficulty can be used for forestry
or to recreate natural ecosystem. Attempts to grow trees in highly non alkaline
saline soils have been largely unsuccessful.
โข Field experiments have shown that species like Eucalyptus, Prosopis and Acacia
nilotica could not be grown in highly alkaline soil. Studies have shown that if
tree seedlings are planted with a mixture of original soil, gypsum, and manure,
better growth can be achieved.
โข It is however important to use indigenous species of trees so that the program
recreates the local ecosystem with all its species.
8. Methods Of Wasteland Reclamation
โข There are various methods by which wastelands
can be reclaimed.
1. AFFORESTATION :It means growing the forest over
culturable wasteland
2. REFORESTATION : Growing the forest again over
the lands where they were existing and was
destroyed due to fires, overgrazing, and excessive
cutting. Reforestation checks water logging, floods,
soil erosion and increase productivity of land.
9. Methods Of Wasteland Reclamation
3.PROVIDING SURFACE COVER : The easiest way to
protect the land surface from soil erosion is of leave
crop residue on the land after harvesting.
4. LEACHING: In salt affected land, the salinity can be
minimized by leaching them with more water.
5. CHANGING AGRICULTURAL PRACTICES : Like mixed
cropping, crop rotation and cropping of plants are
adopted to improve soil fertility.
6. ECOLOGICAL SUCCESSION : This refers to the
natural development or redevelopment of an
ecosystem which help in reclaiming the minerally
deficient soil of wasteland.
