Plant Stand And Stability increment Sengon (Albizia falcataria) in Sub Lempake District of North Samarinda

Abstract

The purpose of this study was to determine or calculate the increment of diameter at breast height and increment of total height and stability of standing crops Sengon (Albizia falcataria) contained in the study site, to determine whether or not the activities thinning done on plants Sengon (Albizia falcataria) contained in the study site and to recommend spacing especially on the reforestation or afforestation activities that planting of this type.Becoming object in this research is a plant Sengon (Albizia falcataria) contained in these locations. Based on the results of a discussion with Mr. Jamal as the owner of the land and plant Sengon (Albizia falcataria), cultivated land Sengon (Albizia falcataria) approximately 0.5 hectares, the number of plants and more than 220 plants were planted in 2007 so that the age of the plant at the time this research was done approximately 9 years. While a spacing based on direct measurements at the study site approximately 3 m x 3 m.The number of plant samples Sengon (Albizia falcataria) taken with a sampling intensity by 25% thus totaling 55 plants and selected intentionally (purposive sampling).Based on the results of the measurement and the calculation of the diameter at breast height and the total height of the plant Sengon (Albizia falcataria) at the time of this study made at the time the plant was 9 years gained an average diameter at breast height of 23.79 cm, the average height of a total of 13 , 56 m, the average increment at breast height diameter of 2.64 cm / plant / year, the average increment of the total height of 1.51 m / plant / year and stability stands at 57.00.

Growth of three types of sengon (Paraserianthes spp.) in varying planting spaces in agroforestry system

“…According to Ozcelik et al (2014), each tree type performs different height and diameter due to the genetic capability and its interaction with the surrounding environmental condition. In general, wider planting space will result in a greater stem diameter (Rahman et al 2018;Tun et al 2018) since there is more abundant sunlight received by plants that will help the photosynthesis process.…”

“…Villegas et al (2009) reported that silviculture application treatment through a wider spacing could improve the growth rate of trees while death and damaged trees decrease the number of trees, making a wider growing space for the plant to grow. Suharja and Jumani (2017) and Rahman et al (2018) mentioned that several factors which influence tree volume in a certain area are species, stand density, growth location quality, and treatments applied.…”

The growth of sengon (Parasarienthes falcataria) and citronella (Cymbopogon nardus) productivity performance in agroforestry system

“…Sopacua et al (2021) explained that the volume of Solomon F2 trees aged 16 months experienced faster growth than the Solomon F1 sengon and Kendal local sengon. Factors that affect tree volume are stand density, quality of growing location, and maintenance techniques (Rahman et al 2018;Mulyadi et al 2022;Aldafiana and Murniayati 2021).…”

Study on the Growth of Falcataria moluccana at 14-Month-Old and the Productivity Rice Plant (Oryza sativa) IPB 3S in Agroforestry System

“…Setiadi et al (2014) reported that the diameter of Solomon provenance is three times larger than the local Kendal provenance. This is thought to be due to genetic factors and the ability to adapt to different environments (Azizah et al 2019;Ozcelik et al 2014;Rahman et al 2018;Tun et al 2018). In addition, the average diameter at wider spacing is greater than at narrow spacing due to a small space competition, so the absorption of light and nutrients will be more optimal (Azizah 2019).…”