Abstract
Kimboza forest reserve is recognized as an IUCN category IV-habitat and species management area, but the information on population structure, harvesting rate and regeneration status of four commercial woody species, namely; Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon in the forest are lacking. This study, therefore, aims to fill this gap. A total of five transects were established in the forest whereby within each transect, five nested quadrats of 20 m × 20 m were placed at 200 m distance for sampling stems with diameter at breast height (DBH) ≥ 10 cm and stumps of the target species. Stems with DBH <10 cm were counted in a quadrat of 5 m × 5 m placed within the big quadrat. The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively. The DBH class distribution for Khaya anthotheca, Milicia excelsa and Pterocarpus angolensis displayed a good regeneration pattern, however, the last two were interrupted in high size classes. The Dalbergia melanoxylon revealed a poor regeneration pattern. The study recommends that illegal harvest of the species should be controlled, environmental education be provided to locals, and stringent measures be institutionalized against illegal loggers.
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Claims 13
Claim · model-written summary
Khaya anthotheca had density of stems of 4.8 stems ha-1.
- Taxon
- Khaya anthotheca
Khaya anthothecae0 - Outcome
- density of stemse0
- Value
- 4.8 stems ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Khaya anthotheca had harvesting rate of 6.6 stumps ha-1.
- Taxon
- Khaya anthothecaKhaya anthothecae0
- Outcome
- harvesting ratee0
- Value
- 6.6 stumps ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Milicia excelsa had density of stems of 12.6 stems ha-1.
- Taxon
- Milicia excelsa
Milicia excelsae0 - Outcome
- density of stemse0
- Value
- 12.6 stems ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Milicia excelsa had harvesting rate of 3.4 stumps ha-1.
- Taxon
- Milicia excelsaMilicia excelsae0
- Outcome
- harvesting ratee0
- Value
- 3.4 stumps ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Pterocarpus angolensis had density of stems of 16.0 stems ha-1.
- Taxon
- Pterocarpus angolensis
Pterocarpus angolensise0 - Outcome
- density of stemse0
- Value
- 16.0 stems ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Pterocarpus angolensis had harvesting rate of 2.8 stumps ha-1.
- Taxon
- Pterocarpus angolensisPterocarpus angolensise0
- Outcome
- harvesting ratee0
- Value
- 2.8 stumps ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Dalbergia melanoxylon had density of stems of 5.6 stems ha-1.
- Taxon
- Dalbergia melanoxylon
Dalbergia melanoxylone0 - Outcome
- density of stemse0
- Value
- 5.6 stems ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Dalbergia melanoxylon had harvesting rate of 1.2 stumps ha-1.
- Taxon
- Dalbergia melanoxylonDalbergia melanoxylone0
- Outcome
- harvesting ratee0
- Value
- 1.2 stumps ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings show that density of stems & harvesting rate for Khaya anthotheca, Milicia excelsa, Pterocarpus angolensis and Dalbergia melanoxylon were 4.8 stems ha-1 & 6.6 stumps ha-1, 12.6 stems ha-1 & 3.4 stumps ha-1, 16.0 stems ha-1 & 2.8 stumps ha-1, and 5.6 stems ha-1 & 1.2 stumps ha-1, respectively.”
Claim · model-written summary
Khaya anthotheca showed a good regeneration pattern.
- Taxon
- Khaya anthothecaKhaya anthothecae0
- Outcome
- good regeneration patterne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The DBH class distribution for Khaya anthotheca, Milicia excelsa and Pterocarpus angolensis displayed a good regeneration pattern, however, the last two were interrupted in high size classes.”
Claim · model-written summary
Milicia excelsa showed a good regeneration pattern interrupted in high size classes.
- Taxon
- Milicia excelsaMilicia excelsae0
- Outcome
- good regeneration patterne0
- Qualifier
- interrupted in high size classese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The DBH class distribution for Khaya anthotheca, Milicia excelsa and Pterocarpus angolensis displayed a good regeneration pattern, however, the last two were interrupted in high size classes.”
Claim · model-written summary
Pterocarpus angolensis showed a good regeneration pattern interrupted in high size classes.
- Taxon
- Pterocarpus angolensisPterocarpus angolensise0
- Outcome
- good regeneration patterne0
- Qualifier
- interrupted in high size classese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The DBH class distribution for Khaya anthotheca, Milicia excelsa and Pterocarpus angolensis displayed a good regeneration pattern, however, the last two were interrupted in high size classes.”
Claim · model-written summary
Dalbergia melanoxylon had poor regeneration.
- Taxon
- Dalbergia melanoxylonDalbergia melanoxylone0
- Outcome
- poor regeneration patterne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Dalbergia melanoxylon revealed a poor regeneration pattern.”
Claim · model-written summary
The authors recommend controlling illegal harvest, educating locals and instituting stringent measures against illegal loggers.
Verbatim
e0“The study recommends that illegal harvest of the species should be controlled, environmental education be provided to locals, and stringent measures be institutionalized against illegal loggers.”
t0“Population structure, harvesting rate and regeneration status of four woody species in Kimboza forest reserve, Morogoro region - Tanzania”