The inventory data
collected from the field used to be partially processed by the field inventory
teams themselves. Thereafter this processed data was sent to the Chief Forest
Statistician for its statistical analysis. In this process lot of time of the
field units was wastedand the whole process was very lengthy. In order to
overcome these shortcomings an Inventory Management System has been designed by
the author which not only processes the data but acts as a decision support
system for the working plan officer to use the inventory information much more
meaningfully. Moreover the data captured through the system is dynamically
linked to GIS environment to make the whole system much more powerful planning
and monitoring tool.
The above
mentioned integration of MIS and GIS is not only a powerful planning tool for
the Working Plan Officer but these digital databases are very potent decision
support and monitoring tools for the implementing managers in the real time mode
also. In the GIS environment they can make innumerable queries to find answers
to their day to day management questions.
A typical workflow
used for the preparation of working plans is shown in the given flow
chart.
Fig1:Typical
Workflow used for preparation of Working Plans
Different type of
treatment is specified for each of the above categories of areas. The actual
task of judging and delineating the areas on the ground is left to the last man
in the field. Each division has hundreds of coupes due for working each year
hence the above task is assigned to many persons with varying degrees of
experience and knowledge. The treatment map is prepared based on ocular
estimation. This process results in rather inaccurate and inconsistent treatment
maps. All the treatments are supposed to be carried out according to these
treatment maps. Hence the weakness of the present practice is
self-evident.
Working plan
officer too has to base his calculations on rough estimations, as he does not
have very accurate and consistent stock maps to work with. Moreover the input
for him is rather fixed and it is almost impossible for him to generate many
alternate strategies before picking the best ones.
This task of
preparation of treatment maps/ stock maps can be achieved quickly with much more
accuracy and consistency by using remotely sensed data in GIS environment.
Working plan officers can not only provide the territorial staff with accurate
treatment maps but they can improve their own calculations of yield etc. also.
This has been achieved for more than half a dozen divisions in the state of
Maharashtra and all future revisions of working plans are proposed to be based
on this approach.
Besides
delineating the coupe areas on the basis of crown density and physiographic
features working plan officer requires an extensive forest inventory data to
base his prescriptions in terms of different treatments. We are using random
start systematic line sample plot method for inventory data collection. The
whole area of the division is divided into grids of 600m X 600m on the Survey of
India topo sheets. These maps are provided to the field inventory units. They
locate these points on the ground by chain & compass survey and then layout
sample plots for tree enumeration and regeneration survey. So for every 36 ha.
area on the ground we have a sample plot.
The inventory data
collected from the field used to be partially processed by the field inventory
teams themselves. Thereafter this processed data was sent to the Chief Forest
Statistician for its statistical analysis. In this process lot of time of the
field units was wastedand the whole process was very lengthy. In order to
overcome these shortcomings an Inventory Management System has been designed by
the author which not only processes the data but acts as a decision support
system for the working plan officer to use the inventory information much more
meaningfully. Moreover the data captured through the system is dynamically
linked to GIS environment to make the whole system much more powerful planning
and monitoring tool.
The above
mentioned integration of MIS and GIS is not only a powerful planning tool for
the Working Plan Officer but these digital databases are very potent decision
support and monitoring tools for the implementing managers in the real time mode
also. In the GIS environment they can make innumerable queries to find answers
to their day to day management questions.
A typical workflow
used for the preparation of working plans is shown in the given flow
chart.