Abstract
The potency of the Indonesian Tropical Forest, particularly in Kalimantan, has been shrinkage year by year. Selective Cutting and Line Planting System (SCLP) is expected to increase the productivity of the tropical forest. This study aims to analyze the growth and diameter increment of Dipterocarpaceae stand planted in West-East (W-E) and North-South (N-S) planting direction on SCLP at concession area of PT. Intracawood Manufacturing, Bulungan District, North Kalimantan, Indonesia. Growth and diameter increment data of Dipterocarpaceae was obtained by field measurement in 4 (four) permanent plots sized 100 m x 100 m with W-E and N-S directions. The study revealed that the largest growth and average diameter increment on a five-year-old stand is Shorea parvifolia with planting direction of W-E about 8,5 cm and 1,92 cm/yr. In contrast, the smallest is Dryobalanops lanceolata with N-S planting direction about 4,6 cm and 0,99 cm/yr. Planting line direction does not influence diameter increment. It is due to the stand position in the spacing line as an ex-cutting area or the right and left-hand sides of the planting line with low density and low average stand height (17,62 m). Therefore, the light intensity on the N-S planting line direction has no barrier of spacing line stand. Keywords: Increment, Light Intensity, Planting Line Direction
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Claims 4
Claim · model-written summary
Shorea parvifolia had the largest average diameter increment (1,92 cm/yr) with W-E planting direction
- Taxon
- Shorea parvifolia
_-_TER_Bkt._Pelindung%2C_Kuantan_20260621.jpg?width=60)
Rubroshorea parvifoliae1 - Treatment
- planting direction of W-Ee1
- Outcome
- average diameter incremente1
- Direction
- largeste1
- Value
- 1,92 cm/yre1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_TER_Bkt._Pelindung%2C_Kuantan_20260621.jpg?width=500)
Verbatim
e1“the largest growth and average diameter increment on a five-year-old stand is Shorea parvifolia with planting direction of W-E about 8,5 cm and 1,92 cm/yr”
Claim · model-written summary
Dryobalanops lanceolata had the smallest growth and diameter increment with N-S planting direction
Verbatim
e0“growth and diameter increment of Dipterocarpaceae stand planted in West-East (W-E) and North-South (N-S) planting direction on SCLP”
e2“the smallest is Dryobalanops lanceolata with N-S planting direction about 4,6 cm and 0,99 cm/yr”
Claim · model-written summary
Planting line direction does not influence diameter increment of Dipterocarpaceae stands
- Taxon
- DipterocarpaceaeDipterocarpaceaee0
- Treatment
- Planting line directione3
- Outcome
- diameter incremente3
- Direction
- does not influencee3
Verbatim
e0“growth and diameter increment of Dipterocarpaceae stand planted in West-East (W-E) and North-South (N-S) planting direction on SCLP”
e3“Planting line direction does not influence diameter increment”
Claim · model-written summary
Light intensity on the N-S planting line direction is interpreted as not blocked by the spacing-line stand
- Taxon
- DipterocarpaceaeDipterocarpaceaee0
- Treatment
- N-S planting line directione4
- Outcome
- light intensitye4
Verbatim
e0“growth and diameter increment of Dipterocarpaceae stand planted in West-East (W-E) and North-South (N-S) planting direction on SCLP”
e4“Therefore, the light intensity on the N-S planting line direction has no barrier of spacing line stand”