International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004
Public
Monitoring
Evaluation
NGO’s
Figure 1. Conceptual presentation of different elements of the
research
Applying compensatory model in sustainable forest
management evaluation needs careful examination. Allowing
complete compensation of bad performance, how bad it is, of
certain indicator by the good performance one, may be not true.
Certain indicators could be fundamental to achieve the
sustainability of forest management such as forest area
certainty, biodiversity conservation and assurance of local
community and employee’s right, while the others are not.
Therefore they must be achieved at certain level of performance
or threshold and cannot be compensated by any other
indicators. However in another part compensation may be
acceptable as a fair way in evaluation, it is most unlikely to be
good in every aspects of evaluation.
The current certification system for assessing sustainability of
forest management has problems in input and in processing. In
the input part the major problems are that a) the verifiers are of
diverse nature and vaguely defined, b) experts assess the
verifiers using verbal judgement but these judgements are
considered as crisp number so judgement uncertainty is not
considered and c) moreover on the ground verifiers are
interrelated, but in the current system they are put under
different hierarchical levels and hence their ground interaction
reality is restricted. In the processing part a) Crisp numbers
leads to under estimation or over-estimation, b) these numbers
are processed using mathematical aggregation based on AHP
(Saaty, 1995) and hence uncontrolled degree of compensation
that leads to irrational interactions and information loss and c)
interpretation of finally derived crisp number. These problems
are systematically researched and analysed in the research to
choose a proper approach and necessary procedures, which can
lead to decisive assessment of SFM (Purbawiyatna, 2002).
Jeganathan (2003) and Retno (2004) use AHP, Fuzzy-AHP;
Fuzzy Reasoning approaches, to explore the alternative method
of assessing the sustainability of the forest management. They
found that fuzzy reasoning based approaches gives more
flexibility, transparency and full control on the processes
involved in achieving the rational sustainability assessment. For
a complex problem of decision making, such as assessment of
the sustainable forest management, the result usually need to be
350
Certification System
VCI UlIULIOuuit
Voluntary
Certification
MoF
Mandatory
Certification
Pa
-
-
obtained through reasoning by rules. This study has found that
rule base assessment in fuzzy reasoning model allows better
linking of the human knowledge with the existing indicators.
3.2 Potential role of remote sensing and GIS application
Potential role of application of RS/GIS in certification process
were identified as determination of forest management
typology, land-cover change determination and analysis of the
status of biodiversity (Aguma, 2002; Dahal, 2002; Wardhana,
2002). Fauzi (2001) researched detection of forest structure
change using image classification and found remote sensing
application practical, since it deal with huge and often
inaccessible area.. Cui (2003) and Santosh (2003) found that
Landsat-7 ETM+ can play a partial, but also crucial role for
supporting forest certification process in Indonesia. They
demonstrated that the following six indicators can be positively
assessed with reasonable accuracy using remotely sensed data
i.e. Landsat ETM+:
- P1.1-“It must be guaranteed that land will remain as a
forest area”
- P1.3-“The level of change in land cover due to
encroachment and conversion of forest, fire, and other
factors”
- P2.5-“Condition of remaining stands”
- P2.7-“Infrastructure of the forest management unit in the
harvesting of forest products"
- P2.8-"Implementation of reduced impact logging"
- E1.3-“The intensity of damage in protected areas which
includes the danger of forest fires"
Among these 6 indicators, P1.3 and E1.3 can be assessed
quantitatively, while others can only be assessed qualitatively.
He also showed that object-oriented image analysis, which is
implemented by eCognition software, is the suitable image
processing method for the information extraction to support
forest certification process, although it is not very easy to usc.
Many functions provided by it are not available yet in other
pixel-based techniques, and some of these functions are useful
for assessing forest management.
Considering the large amount of indicators and the difficulty of
getting relatively cloud free images, Landsat-7 ETM- data can
only partially be used to support certification process in
Indonesia. Meanwhile, considering the importance of indicators
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REFEREN
Aguma, R.
L
Ii
C
I
Anita Zait
L
a
Baharudin,
Gu Y. c
Fauzi, A.