Morphological characteristics and abundance of red meranti (Shorea platyclados) in Martelu Purba natural reserves

In its natural habitat, S. platyclados is abundant in Martelu Purba Nature Reserve, North Sumatra. However, like the Dipterocarpaceae family, this species has limitations in regeneration related to the uncertain flowering phase and the seeds' recalcitrant nature. This condition can be a long-term threat to the sustainability of S. platyclados. Efforts should be made to select mother plants as a source of short-term quality seeds, to support the breeding program and the conservation of S. platyclados. Monitoring of mother plants will be more effective if mapping data is available. Therefore, it is important to map the mother plant of S. platyclados. In addition, the population structure needs to be identified and related to trends in its sustainability. The goal of this study was to map the mother plant of S. platyclados in Martelu Purba Nature Reserve and to examine its population dynamics.. This research was conducted in Martelu Purba Nature Reserve, Simalungun Regency, North Sumatra. There are 195 hectares of designated population there. Combining the path method and the plotline, the sampling methodology was applied. Fifty (50) plots were observed across the sample area of 2 hectares (1% Sampling Intensity), which was separated into three lanes. Observations were made on a 20 m × 20 m plot to measure the vegetation at the tree level (diameter 20 cm), a 10 m × 10 m observation sub-plot to measure the vegetation at the pole level (diameter 10cm - 20m), a 5 m × 5 m observation sub-plot to measure the vegetation at the sapling level (diameter 10 cm), and a 2 m × 2 m observation sub-plot to measure the vegetation at the seedling level. The mother plants were recorded as many as 309 individuals in 50 observation plots, or 155 individuals/ha spread evenly in the relatively sloping Nature Reserve area. The distribution structure of the height and diameter of the mother plants indicates a good adaptation, resembles a standard curve. The population structure of S. platyclados is curved like an inverted J, indicates that this population is quite stable and sustainable. However, monitoring at the pole level is crucial based on a gap in the presence of this regeneration compared to others.

Section: Population Dynamicscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 91%

Mapping and Population Structure of Shorea platyclados in Martelu Purba Nature Reserve

Hartini

Rangkuti

Manalu

et al. 2022

“…In other reserve areas, only one genus is found per family. These dominant families naturally dominate tropical rainforests in the Martelu Purba Nature Reserve [9] From the 39 identified tree species, the benefits of the trees are classified into six categories namely; 1. as a raw material for medicine, 2. a source of food for humans and animals, 3. improvement of environmental conditions, 4. heavy and light construction materials, 5. natural dyes, 6. and paper-making materials.…”

Section: Resultsmentioning

confidence: 99%

Identified benefits of community trees in Martelu Purba Nature Reserve

Rangkuti,

Hartini,

Susilowati

et al. 2024

The tree species in the Martelu Purba Nature Reserve has been identified. There were 39 plant species from 27 families. Publication of the benefits of each tree species in Martelu Purba Nature Reserve has not been well done. The trees have good potential for further exploration to discover their real benefits for human welfare. This research aims to identify the benefits of the Martelu Purba Nature Reserve. The method used in this study was an exploratory method of tree species in the Ancient Martelu Nature Reserve, and then the benefit categories of each type were determined with reference to the book Indonesian Useful Plants by K. Heyne. Based on research results, the benefits of trees are classified into six categories: raw materials for medicines, food sources for humans and animals, trees to improve environmental conditions, heavy and light construction materials, natural dyes, and paper-making materials. Each type has more than one benefit. Around 35%, or 24 species, are used for consumption; as many as 29%, or 20 species, are used as medicinal plants and as building materials. 21%, or 14 species; besides that, there are tree species for which the local community uses the sap and Gamblea malayana (MRHend.) CBShang, Lowry & Frodin as a phytoremediation plant.

“…so much sought after because it is great potential for various kinds of basic building materials with a very high market value [1]. This type of meranti is unique because of the flat tips of the branches [2][3]. This meranti grows and is widespread in the hills or mountains between 700 to 1,300 meters above sea level [4].…”

Section: Introductionmentioning

confidence: 99%

The growth tree saplings Shorea platyclados with various shades and NPK fertilizer

Rangkuti,

Hartini,

Andini

et al. 2024

Shorea platyclados, known to the public as Meranti Bukit, is one of the species whose existence is difficult to find, so efforts are needed for its preservation, namely by propagation techniques with natural saplings that are expected to produce optimal growth.S. platyclados, including types that can grow with a light intensity of 30–50% and therefore require shade for early growth, needs NPK fertilizer to get optimal growth. This study aims to obtain the appropriate dose of NPK fertilizer and optimum light requirements for the growth of natural saplings by measuring the percent of life, height, diameter, and number of leaves. The design used is a random group design (rack) with 5 additional treatments of NPK fertilizer doses, namely control (0 gr), 0.25 gr, 0.50 gr, 0.75 gr, and 1 gr, and 4 shade blocks, namely without shade (0%), shade 50%, shade 60%, and shade 70%. The results showed that the application of NPK fertilizer significantly affected the number of leaves. The result is an increase in the number of leaves at a dose of 1 g with a value of 17 (strands) and 0.75 g with a value of 15 (strands). The provision of shade blocks has a significant effect on the diameter parameters. The best result is an increase in diameter at 70% shade, with an average diameter of 1,984 mm. NPK fertilizer application shows a 100% life percentage, and shade application shows a 100% life percentage.