PENGARUH KEGIATAN HPHTI TERHADAP KARAKTERISTIK POLA ALIRAN
The land cover in forest areas in Jambi Province has experienced changes, with its changing pattern into non-forestry purposes, particularly in the logged over lands resulted from the forest concessions� activities (HPH) which are distributed nearly in every conservation zone, ranging from the ups...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/133774/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=74591 |
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| Summary: | The land cover in forest areas in Jambi Province has experienced changes,
with its changing pattern into non-forestry purposes, particularly in the logged over
lands resulted from the forest concessions� activities (HPH) which are distributed
nearly in every conservation zone, ranging from the upstream (the buffer zone of
Kerinci Seblat National Park) to downstream watersheds (DAS) of Batanghari
(Peatland Protected Areas, the Buffer Zone of Berbak National Park). The non-based
preservation of forest area management in a watershed will alter the balance of water
system in the watershed, including rain, runoff, river flow, absorption, ground water
flow and evapotranspiration and other elements. One of the indicators of a
watershed�s conditions which is deemed impaired is when the coefficient value of
the flow tends to continuously increasing from year to year. Significant damage to
forests will change the river�s characteristic, which originally flows throughout the
year (perennial) into a dry river during the dry season (intermitern).
In general, the procedure performed in research activities was initiated by
conducting observations and field investigation, literature review and secondary data
collection, field observations, analysis of secondary data and field observations,
formulating conclusions, and the last was the preparation of paper. The research
method used was by means of manual calculation of excel program.
Based on the calculation conducted from the period of the year 2000 to 2006,
the value of KRS obtained ranges from 6-25, thus Tapah sub-watershed area is
included in a good category, i.e. KRS value of < 50. The condition of Tapah�s
discharge does not change significantly with the logging pattern implemented by the
company. Judging on this condition, it indicates that the condition of Tapah subwatershed area does not experiences significant changes in the flow�s hydrograph
characteristics due to HPHTI activities |
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