Ideal planting space for merbau (Intsia bijuga) forest plantations in Papua based on distance-dependent competition
| Autor: | Muhammad Ali Imron, Elieser Viktor Sirami, Djoko Marsono, Ronggo Sadono |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Canopy food.ingredient QH301-705.5 Plant Science 010603 evolutionary biology 01 natural sciences west papua food planting space gunung meja distance-dependent competition Biology (General) Molecular Biology Mathematics Horsfieldia irya Horsfieldia biology Forestry biology.organism_classification Palaquium Buchanania arborescens merbau plantations Animal Science and Zoology Pometia pinnata Dysoxylum Intsia 010606 plant biology & botany |
| Zdroj: | Biodiversitas, Vol 19, Iss 6, Pp 2219-2231 (2018) |
| ISSN: | 2085-4722 |
| Popis: | Sirami EV, Marsono D, Sadono R, Imron MA. 2018. Ideal planting space for merbau (Intsia bijuga) forest plantations in Papua based on distance-dependent competition. Biodiversitas 19: 2219-2231. Distance-based competition between merbau (Intsia bijuga (Colebr.) Kuntze) and neighboring trees could be applied to determine the planting space between merbau trees and shade trees in plantations. This research was conducted to identify the characteristics of merbau competition with neighboring trees and determine the ideal spacing of merbau trees. The sampling design using was the systematic line technique with hypothetical plot and sample tree as the quadrant center. The competitors were determined using a virtual high approach and header contact. Distance-based competitions were identified using the Hegyi index. Sixteen species had the highest competition index because of their dominance in the tree structure, namely Pometia coriacea, Intsia bijuga, Pimelodendron amboinicum, Horsfieldia laevigata, Palaquium amboinense, Pometia pinnata, Garcinia sp., Spathiostemon javensis, Prunus costata, Sterculia macrophylla, Terminalia complanata, Lepiniopsis ternatensis, Horsfieldia irya, Dysoxylum octandrum, Buchanania arborescens, and Ficus similis. Merbau responded to the high intensity of competition by tilting its canopy in the opposite direction to the position of the competitors’ canopy, making an irregular canopy shape, and growing the first branch at the lowest point on the stem. The ideal planting space for merbau trees in the plantations was 3-7 m. |
| Databáze: | OpenAIRE |
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