AP Hazard Mitigation Project
- Prioritization of Shelter Belt Plantation Areas:
Geomatics center, A. P. Forest Department
in collaboration with Forestry & Ecology Division, NRSA prepared
a working plan for shelterbelt development program under A. P.
Hazard Mitigation Project to prevent and mitigate the catastrophes
in the form of cyclonic hazards along entire east-coast of Andhra
Pradesh. Remote Sensing data and Census data were taken as input
databases and also the topography, soil, geology & geo-morphology
etc., themes as other inputs and Geographic Information System
as a tool by overlaying various themes to prioritize areas for
establishing and for development of shelterbelts. The priorities
were given by taking the land use and land cover pattern, population,
slope and previous history of cyclone hazards into the consideration.
Inputs to Plans:
Geomatics is used as a tool in preparation
of Forest Working Plans of divisions in the state by providing various
inputs. The inputs like forest boundaries, stream network, contours,
roads, villages, forest cover etc., and derived layers from these
are vital in various levels of planning i.e., strategic, management
and operational as well as the micro plans of JFM.
Pre-inventory/inventory points are generated based on the classified
map by way of Probability Proportionate Stratified Random Sampling
for growing stock estimation. The sampling intensity is based on
the variance in population in each stratum (canopy density class).
Forty five plots of 0.1 Ha each in every Division @ 15 plots in
each density class were generated randomly. Basing on the variance
in population, the final inventory points were generated through
Optimal sample size determination procedure and overlaid on topomaps
and given to field people to conduct the detailed inventory.
The final inventory is under progress and
the information gives the Statistics of growth and yield of growing
stock, and also the Status of Forest and Potentiality of the forest
area in the division. Accurate stock maps and other information
dependant maps will be generated with the help of RS, GIS and statistical
inputs (inventory data). Once the stock maps are prepared, it is
easy to derive working circles with help of other collateral information.
Basing on the working circles treatment practices can be designed.
GIS will be used for area calculation, statistics generation and
for final output map making. It makes the task more accurate, fast
The inputs maps for all the CFM areas are
generated by overlaying the random points generated using the probability
proportionate stratified random sampling, on the topomaps along
with related information. These points form permanent inventory